Consulta: year:"1991"
Registros recuperados: 2.085
Data/hora: 03/06/2024 18:43:17

90MZ17
Provedor de dados: 8
Autores: Osborne, Alan G.; Mazid, Muhammed A.; Hursthouse, Michael B.
Tipo: Crystal Structure Data Holding
Palavras-chave: C~16~H~13~NO; Organic; Organic compounds.
Ano: 1991
URL: http://ecrystals.chem.soton.ac.uk/1029/

90MH25
Provedor de dados: 8
Autores: Morris, John N.; Harman, Mary; Hursthouse, Michael B.
Tipo: Crystal Structure Data Holding
Palavras-chave: C~11~H~26~NB~11~F; Organic; Boron compounds; Cage molecules.
Ano: 1991
URL: http://ecrystals.chem.soton.ac.uk/1028/

91MH29
Provedor de dados: 8
Autores: Morris, John N.; Harman, Mary; Hursthouse, Michael B.
Tipo: Crystal Structure Data Holding
Palavras-chave: C~41~H~50~NP~2~SB~11~; Organic; Boron compounds; Cage molecules.
Ano: 1991
URL: http://ecrystals.chem.soton.ac.uk/1031/

Особенности горизонтального микрораспределения интерстициальной  мейофауны  на песчаной черноморской супралиторали
Provedor de dados: 13
Autores: Воробьева, Л. В.; Богдан, С. А.; Повчун, А. С.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1476

Анализ состава гетеротрофных  бактерий Одесского побережья при культивировании на различных средах  с учетом воздействия  внешних  факторов
Provedor de dados: 13
Autores: Ковалева, Н. В.; Нижегородова, Л. Е.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1491

Оценка  интенсивности захоронения органической взвеси в Черном море по потоку кислорода в атмосферу
Provedor de dados: 13
Autores: Еремеева, Л. В.; Дегтерев, А. X.; Дегтерев, С. X.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1483

Фораминиферы Прибосфорского района Черного моря
Provedor de dados: 13
Autores: Янко, В. В.; Воробьева, Л. В.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1470

Antarctic krill and the structure of planktonic community in its distribution area
Provedor de dados: 13
Autores: Samyshev, E. Z.
Data of long-term field and experimental studies conducted at a typical region of Antarctic underlie the analysis of major structural and functional characteristics of the Antarctic krill Euphausia superba Dana prevailing in Antarctic ecosystem and other planktonic community members in the area. A solid theoretical basis has been formed that allows to have an insight into economic prospects for the krill.
Tipo: Book
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/2001

Кинетические характеристики обмена  фосфора-32 черноморскими идотеями  при накоплении  его непосредственно  из воды
Provedor de dados: 13
Autores: Поповичев, В. Н.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1531

Тенденции многолетних изменений концентраций фосфатов в западной  части Черного  моря
Provedor de dados: 13
Autores: Финкельштейн, М. С.; Проненко, С. М.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1462

Предварительная  оценка запасов мангровой устрицы Crassostrea tulipa в  эстуариях Табунсу и Дюбрека (Гвинейская республика)
Provedor de dados: 13
Autores: Валовая, Н. А.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1489

Биоконвекция у морских планктонных водорослей
Provedor de dados: 13
Autores: Алеев, М. Ю.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1500

Зависимость между жирностью и возрастом  черноморского шпрота
Provedor de dados: 13
Autores: Минюк, Г. С.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1530

Структура зоопланктонных сообществ Атлантики и Средиземноморского бассейна
Provedor de dados: 13
Autores: Ковалев, А. В.
Tipo: Book
Ano: 1991
URL: http://10.0.0.194:8080/dspace/handle/99011/2856

Структура и организация таксоценов  фораминифер  Онежского и Кандалакшского (район Сонострова) заливов Белого моря
Provedor de dados: 13
Autores: Лукина, Т. Г.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1471

Анализ пространственного распределения макрозообентоса в Черноморской бухте Ласпи с использованием методов многомерной статистики
Provedor de dados: 13
Autores: Петухов Ю.П.; Шаловенков Н.Н.; Ревков Н.К.; Петров А.Н.
Анализируется пространственное распределение макрозообентоса на рыхлых грунтах в бухте Ласпи с помощью методов многомерной стати­тики (кластерный и дискриминантный анализы). Рассматривается возможный вариант установления границ и выделения донных сообществ. Выявлены иерархические уровни (группы и группировки) этих со­обществ. В соответствии с пространственным распределением трех групп макрозообентоса на дне бухты выделены три зоны: мелководная (от 3—10, до 40-50 м), промежуточная (от 20-40 до 60 м) п глубинная (глубже 60 м). В мелководной зоне зарегистрировано два сообщества (иерархический уровень - группировка): Venus gallina и Gouldia minima - Pitar rudis. В промежуточной и глубинной зонах отмечено по одному сообществу (иерархический уровень — группа):...
Tipo: Journal Contribution
Ano: 1991
URL: http://10.0.0.194:8080/dspace/handle/99011/4146

Сезонная динамика биохимического  состава черноморской взвеси
Provedor de dados: 13
Autores: Бобкова, А. Н.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1485

Некоторые особенности  биолюминесценции остракод
Provedor de dados: 13
Autores: Евстигнеев, П. В.; Драпун, И. Е.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1499

Симбиоз водных животных с водорослями
Provedor de dados: 13
Autores: Заика, В. Е.
Tipo: Book
Ano: 1991
URL: http://10.0.0.194:8080/dspace/handle/99011/2810

Геоморфологические и экологические особенности зоны гипоксии северо-западного шельфа Черного моря
Provedor de dados: 13
Autores: Фесюнов, О. Е.; Назаренко, М. Ф.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1520

Поведенческие  и ориентационные физиологические  реакции высших гидробионтов в  условиях изменения  фоновых электромагнитных характеристик среды  обитания
Provedor de dados: 13
Autores: Александров, В. В.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1528

Изучение  скорости энергетического  обмена  у крылорукого кальмара (Sthenoteuthis pteropus St.) при  низкой температуре с учетом гидростатического давления
Provedor de dados: 13
Autores: Аболмасова, Г. И.; Столбов, А. Я.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1529

Новый вид - Didymozoon musculi sp.n. (Trematoda Didymozoidae) из мускулатуры плоскоголовов
Provedor de dados: 13
Autores: Николаева В. М.; Мордвинова Т. Н.
В 1969 году в научном рейсе в мышечных тканях плоскоголовов Platycephalus pristis (Platycephalidae) из Индийского Океана были обнаружены трематоды. Паразиты, которые присутствовали у 12 из 38 рыб (31.6%), после исследования были признаны ранее неизвестными и выделены в новый вид Didymozoon musculi sp. n. В отличие от других представителей рода  Didymozoon эти трематоды локализовались преимущественно в мускулатуре плоскоголовов, изредка встречаясь в стенках кишечника, и не образовывали цисты. По сравнению с прочими видами этого рода Didymozoon musculi sp. n. имеют наибольшую длину; визуально их тело состоит из двух частей: нитевидной передней и цилиндрической задней. В статье дается описание трематод, иллюстрированное рисунками, и дифференциальный диагноз.
Tipo: Journal Contribution
Ano: 1991
URL: http://10.0.0.194:8080/dspace/handle/99011/4356

Видовой  состав и обилие видов у  морских нематод  в связи  с особенностями  среды   мейобентоса
Provedor de dados: 13
Autores: Платонова, Т. А.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1473

Распределение, эколого-физиологические характеристики гребневика-вселенца в Черном море и связанные с ним изменения планктона
Provedor de dados: 13
Autores: Ковалев, А.В.; Заика, В.Е.; Сергеева, Н.Г.; Островская, Н.А.; Мельников, В.В.; Иванова, Н.И.; Тамойкин, И.Ю.
Tipo: Book Section
Ano: 1991
URL: http://10.0.0.194:8080/dspace/handle/99011/3189

Морфологическая изменчивость Terschellingia longicaudata de Man, 1907 (Nematoda, Monhysterida) в Черном море
Provedor de dados: 13
Autores: Сергеева Н. Г.
Приведены результаты анализа изменчивости популяций Terschellingia longicaudata по 15 признакам. Популяция представлена на 33% особями с четко выраженными морфологическими отклонениями по количеству амфидов, их компоновке и локализации.
Tipo: Journal Contribution
Ano: 1991
URL: http://10.0.0.194:8080/dspace/handle/99011/2855

Методика дифференцированного учета живых  и мертвых организмов  морского  зоопланктона  с  помощью  флуоресцентной микроскопии
Provedor de dados: 13
Autores: Александров, Б. Г.; Аблов, О. А.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1532

Динамически активные зоны океана и биопродуктивность (29 рейс НИС "Профессор Водяницкий"
Provedor de dados: 13
Autores: Ковалев, А.В.; Пархоменко, А.В.; Финенко, З.З.
Tipo: Journal Contribution
Ano: 1991
URL: http://10.0.0.194:8080/dspace/handle/99011/3190

Распределение макробентоса в районе Карадаг—Судак в зависимости от абиотических факторов  среды
Provedor de dados: 13
Autores: Повчун, А. С.; Субботин, А. А.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1522

О развитии дыхательной поверхности жабр у рыб
Provedor de dados: 13
Autores: Алеев, Ю. Г.; Нестерова, Р. А.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1468

Бактериопланктон  северо-восточного района Тропической Атлантики
Provedor de dados: 13
Autores: Шумакова, Г. В.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1464

Влияние фронтальных зон на распределение  хлорофилла «а» в восточной части Тропической Атлантики
Provedor de dados: 13
Autores: Финенко, З. З.; Стельмах, Л. В.; Жоров, С. В.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1465

Кислородсвязующая функция крови бычка-мартовика Gobius batrachocephalus Pallas и факторы ее регуляции при адаптации к температурным условиям среды
Provedor de dados: 13
Autores: Солдатов, А. А.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1496

Изучение  питания  зоопланктона в активных динамических зонах Тропической  Атлантики
Provedor de dados: 13
Autores: Павловская, Т. В.; Трусевич, В. В.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1518

Комбинированное влияние факторов и методология исследования
Provedor de dados: 13
Autores: Заика, В. Е.
Tipo: Journal Contribution
Ano: 1991
URL: http://10.0.0.194:8080/dspace/handle/99011/2693

Мейобентос в условиях промышленных  плантаций приморского гребешка (Японское  море)
Provedor de dados: 13
Autores: Павлюк, О. Н.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1479

Некоторые особенности  биологии  киноринх  (Cephalorhyncha, Kinorhyncha)
Provedor de dados: 13
Autores: Андрианов, А. В.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1472

Особенности липидного состава  у  некоторых  представителей массовых видов  тропического зоопланктона  из  Атлантического и Индийского океанов
Provedor de dados: 13
Autores: Щепкина, А. М.; Трусевич, В. В.; Павловская, Т. Я.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1497

Неорганические формы азота и фосфора в восточной части  Тропической части  Атлантики
Provedor de dados: 13
Autores: Кирикова, М. В.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1463

Необычная  полиамфидность природной популяции  Terschellingia longicaudata de Man, 1907 (Nematoda, Monhysterida, Linhomoeidae)  в  Черном  море
Provedor de dados: 13
Autores: Сергеева, Н. Г.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1475

Продукция, потребление кислорода и биогенных элементов  в  прибрежной зоне  шельфа  Гвинеи
Provedor de dados: 13
Autores: Янчиленко, А. Г.; Безбородов, А. А.; Бангура, К.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1519

Оптимизация  содержания биогенных элементов в среде культивирования  морских одноклеточных водорослей  с использованием кинетической  модели  их минерального  обмена
Provedor de dados: 13
Autores: Егоров, В. Н.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1495

Питание личинок и мальков черноморского  шпрота  Sprattus  sprattus  phalericus (Risso)
Provedor de dados: 13
Autores: Ткач, А. В.; Глущенко, Т. И.; Загородняя, Ю. А.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1526

К изучению абиссального  многоклеточного мейобентоса Южной Атлантики
Provedor de dados: 13
Autores: Каменская, О. Е.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1478

Изменчивость степени проявления полового диморфизма  длины тела в  популяции  Pseudocalanus  minutus  (Kroyer, 1848) Copepoda,  Calanidae  — Авачинской  губы (Камчатка)
Provedor de dados: 13
Autores: Шадрин, Н. В.; Солохина, Е. В.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1527

Бактериобентос  севастопольских бухт
Provedor de dados: 13
Autores: Лебедь, А. А.; Кирюхина, Л. Н.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1490

Паразитологические аспекты марикультуры на Чёрном море
Provedor de dados: 13
Autores: Гаевская, А. В.; Мачкевский, В. К.
Basic parasitological aspects of mariculture are analyzed.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1712

Пелагические личинки массовых  видов полихет семейства  Polynoidae и Sigalionidae в Черном море
Provedor de dados: 13
Autores: Мурина, В. В.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1494

Рост мидий  Mytilus galloprovincialis на протяжении годового цикла  в  бухтах  Ласпи  и  Казачья
Provedor de dados: 13
Autores: Аболмасова, Г. И.; Щербань, С. А.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1498

Планктонные ресурсы  Охотского  моря и их  использование рыбами
Provedor de dados: 13
Autores: Дулепова, Е. П.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1517

Эффект отрицательного  эстуария, в устье  Егорлыцкого залива
Provedor de dados: 13
Autores: Рубинштейн, И. Г.; Брянцев, В. А.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1521

Таксоцены нематод Невской губы
Provedor de dados: 13
Autores: Петухов, В. А.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1474

Метаболизм сообщества обрастаний. Сообщение  III.  Динамика  углеводов и азотистых продуктов обмена в среде с сообществом  разного  возраста
Provedor de dados: 13
Autores: Таможняя, В. А.; Мальцева, Л. М.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1487

Мейобентос и его роль в морских экосистемах
Provedor de dados: 13
Autores: Гальцова, В. В.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1481

К вопросу о компенсации развития макробентоса мейобентосом на примере мидиевых банок Белого моря
Provedor de dados: 13
Autores: Шереметевский, А. М.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1480

Биологическая характеристика  веслоногого  рачка Epilabidocera amphitrites  McMurrich  (Copepoda,  Crustacea)
Provedor de dados: 13
Autores: Сафронов, С. Г.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1493

Вертикальное распределение хлорофилла  и фотосинтетически активного фитопланктона  во фронтальных  зонах западнее Австралии
Provedor de dados: 13
Autores: Кузьменко, Л. В.; Крупаткина, Д. К.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1466

Формы антропогенного воздействия на экосистему Черного моря и ее состояние в  современных условиях
Provedor de dados: 13
Autores: Фащук, Д. Я.; Самышев, Э. 3.; Себах, Л. К.; Шляхов, В. А.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1486

Взаимосвязь температурных зависимостей онтогенетического развития и обмена
Provedor de dados: 13
Autores: Макарова,  Н. П.; Заика, В. Е.; АН УССР; Институт биологии южных морей им. А. О. Ковалевского.
Tipo: Book
Ano: 1991
URL: http://10.0.0.194:8080/dspace/handle/99011/2701

Мейобентос фитали Черного моря
Provedor de dados: 13
Autores: Колесникова, Е. А.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1477

Влияние фронтальных зон на пространственное распределение обратного  объемного  рассеяния  звука в  восточной части тропической  зоны  Атлантического  океана
Provedor de dados: 13
Autores: Соколов, Б. Г.; Токарев, Ю. Н.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1467

К вопросу  о  формировании  придонной гипоксии в северо-западной части Черного моря
Provedor de dados: 13
Autores: Берлинский, Н. А.; Дыханов, Ю. М.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1484

Пелагические личинки многощетинковых червей, брюхоногих  моллюсков и десятиногих  раков  акватории Карадагского заповедника
Provedor de dados: 13
Autores: Мурина, В. В.; Артемьева, Я. Н.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1523

Влияние  различных концентраций аммония  в среде на рост и формирование слоевищ  Gracilaria verrucosa и G. species
Provedor de dados: 13
Autores: Романюк, В. А.; Оскольская, О. И.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1525

К вопросу о дискуссии А. И. Зотина, А. А. Нейфаха в журнале "Онтогенез" [Об энергетическом обмене]
Provedor de dados: 13
Autores: Заика, В. Е.; Макарова,  Н. П.
Tipo: Journal Contribution
Ano: 1991
URL: http://10.0.0.194:8080/dspace/handle/99011/2673

Оценка  мощности  и  размеров мидиевых хозяйств  на  основе данных  о трофической емкости района
Provedor de dados: 13
Autores: Холодов, В. И.; Иванов, В. Н.; Сеничева, М. И.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1488

Влияние лунного света на суточные миграции микропланктона и миктофид
Provedor de dados: 13
Autores: Заика, В. Е.; Моисеев, С. И.; Заика, М. В.
Tipo: Book
Ano: 1991
URL: http://10.0.0.194:8080/dspace/handle/99011/2702

Органическое вещество во взвеси  и донных отложениях шельфа Гвинеи
Provedor de dados: 13
Autores: Безбородов, А. А.; Бурлакова, З. П.; Емельянова, О. В.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1469

Питание и выживаемость черноморского веслоногого рачка  Acartia clausi Giesbr. на детрите
Provedor de dados: 13
Autores: Финенко, Г. А.; Романова, 3. А.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1492

Антарктический криль и структура планктонного сообщества в его ареале
Provedor de dados: 13
Autores: Самышев, Э. З.
В монографии на основании многолетних полевых и экспериментальных наблюдений в выделенном типичном регионе Антарктики впервые рассмотрен комплекс наиболее важных структурно-функциональных характеристик самого массового представителя антарктической экосистемы - криля Euphausia superba Dana - и всех других основных компонентов планктонного сообщества в его ареале. Тем самым создана теоретическая основа для оценки перспектив промысла этого рачка. Для гидробиологов, экологов, морских биологов.
Tipo: Book
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1838

Суточные изменения структуры популяции и вертикального распределения гребневика Mnemiopsis mccradyi Mayer (Ctenophora) в Черном море
Provedor de dados: 13
Autores: Заика, В. Е.; Сергеева, Н. Г.
Tipo: Journal Contribution
Ano: 1991
URL: http://10.0.0.194:8080/dspace/handle/99011/2692

Связь продукционных и морфологических параметров у пластинчатой водоросли Porphyra  leucosticta  Thur.
Provedor de dados: 13
Autores: Миничева, Г. Г.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1524

Валовая и чистая цена локомоции животных в связи со скоростью горизонтального движения
Provedor de dados: 13
Autores: Заика, В.Е.; Макарова, Н.П.
Tipo: Journal Contribution
Ano: 1991
URL: http://10.0.0.194:8080/dspace/handle/99011/2669

Распределение концентрации АТФ пико- и нанопланктона в западной  части трансатлантического  полигона
Provedor de dados: 13
Autores: Бенжицкий, А. Г.; Гордиенко, А. П.
Tipo: Journal Contribution
Ano: 1991
URL: http://repository.ibss.org.ua/dspace/handle/99011/1482

Avaliação de cultivares de milho sob irrigação em solos arenosos.
Provedor de dados: 14
Autores: SOUZA, I. R. P. de; ANDRADE, C. de L. T. de.
bitstream/item/72594/1/CPAMN-PESQ.-AND.-10-91.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Cultivo.; Irrigação; Milho; Solo.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/72402

Criterios para a normatizacao do diagnostico das infecoes por Mycoplasma gallisepticum e Mycoplasma synoviae em galinhas.
Provedor de dados: 14
Autores: FIORENTIN, L.
bitstream/item/67892/1/CUsersPiazzonDocumentsProntosCNPSA-DOCUMENTOS-13-CRITERIOS-PARA-NORMATIZACAO-DO-DIAGNOSTICO-DAS-INFECCOES-POR-MYCOPLASMA-GALLI.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Galinhas.; Diagnostico; Mycoplasma Gallisepticum.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/436003

DIAMANTE negro.
Provedor de dados: 14
Cultivar recomendada para os estados de Goiás, Mato Grosso, Mato Grosso do Sul, São Paulo, Paraná e Distrito Federal. Ciclo médio de maturação de 92 dias; produção variando entre 1.609 Kg/ha no GO à 2.165 Kg/ha no DF. Indicadas para as três épocas de plantio: águas, seca e inverno.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Cultivar Diamante negro; Feijão preto; Phaseolus vulgaris; Melhoramento genético vegetal; Variedade.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/215940

Tratamento de sementes de soja com fungicidas.
Provedor de dados: 14
Autores: HENNING, A. A.; KRZYZANOWSKI, F. C.; FRANCA NETO, J. B.; YORINORI, J. T.
bitstream/item/53971/1/49.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Soybean; Seed; Treatment; Fungicide.; Fungicida; Glycine Max; Semente; Tratamento; Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445418

Documento final...
Provedor de dados: 14
Autores: ENCONTRO SOBRE PESQUISA FLORESTAL NA REGIÃO DO TAPAJÓS, 1990, Santarém, PA.
bitstream/item/58712/1/CPATU-Doc55.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Região do Tapajós; Pará; Brasil.; Exploração Florestal; Floresta; Manejo; Pesquisa.; Amazonia.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/393067

Projeto EMBRAPA: a pesquisa agropecuária rumo ao século XXI.
Provedor de dados: 14
Autores: FLORES, M. X.
O papel da EMBRAPA; A reorganziaÇÃo da EMBRAPA; Diretrizes; Prioridades.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: EMBRAPA; Administration; Administração; Pesquisa; Política Agrícola; Agricultural policy; Research.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/96693

Caracterização agroecológica e ambiental da Fazenda Floresta Negra, Município de Sete Quedas, Mato Grosso do Sul.
Provedor de dados: 14
Autores: FRITZSONS, E.; GUIX, J. C. C.; MANGABEIRA, J. A. de C.; MANTOVANI, L. E.; MIRANDA, E. E. de; MIRANDA, J. R.; SANTOS, R. Z. dos.
O levantamento agroecológico e ambiental realizado na Fazenda Floresta Negra, gerou mapas que materializaram o uso atual das terras e recomendações de manejo para a propriedade visando conciliar alta produtividade com proteção ambiental.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Mapeamento; Uso das terras; Fazenda Floresta Negra; Sete Quedas do Rio Verde; Mato Grosso do Sul.; Agricultura; Ecologia; Meio Ambiente; Proteção Ambiental.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/17294

Melhoramento de plantas de interesse econômico para a região amazônica através de técnicas in vitro.
Provedor de dados: 14
Autores: MOTA, M. G. da C.; LEMOS, O. F. de; POLTRONIERI, M. C.; MENEZES, I. C.
bitstream/item/60200/1/CPATU-PA149.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Melhoramento de planta; Pimenta-do-reino; Castanha do brasil; Brasil.; Bacuri; Cultura In Vitro; Cultura de Tecido; Guaraná; Paullinia Cupana; Piper Nigrum; Platonia Insignis.; Brazil nuts; Amazonia; In vitro culture; Plant breeding; Tissue culture.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374123

Critérios para normatização do diagnóstico das infecções por Mycoplasma gallisepticum e Mycoplasma synoviae em galinhas.
Provedor de dados: 14
Autores: FIORENTIN, L.
bitstream/item/121929/1/digitalizar0003.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Mycoplasma gallisepticum e Mycoplasma synoviae; Normatização.; Diagnostico; Galinha.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/856242

Desenvolvimento de cultivares de soja. I. Cruzamentos, sementes híbridas,populações segregantes e seleção de plantas.
Provedor de dados: 14
Autores: EMIDIO RIZZO BONATO.
bitstream/item/133911/1/ID43406-1990-1991sojaresultados-p10-11.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1029460

Manual para construção de um secador de frutas a nível do produtor rural.
Provedor de dados: 14
Autores: CORNEJO, F. E. P.; PARK, K. J.; NOGUEIRA, R. I.; MAIA, M. L. L.; PONTES, S. M.; SILVA, C. S. da.
Descrição do equipamento. Processamento. Vantagens. Desempenho do equipamento. Relação do material para a construção do equipamento.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Secador; Fruta; Máquina agrícola.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/410551

Tabela de composicao quimica e valores energeticos de alimentos para suinos e aves.
Provedor de dados: 14
Autores: EMPRESA BRASILEIRA DE PESQUISA AGROPECUARIA. Centro Nacional de Pesquisa de Suinos e Aves (Concórdia, SC).
Metodologia; Alimentos; Suplementos de cálcio e fósforo; Formulação e balanceamento de rações para suinos.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Composição; Tabela; Feed; Composition.; Alimento; Suíno.; Swine.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/435720

Desenvolvimento de cultivares de soja. II. Avaliação de progênies e formação de novas linhagens.
Provedor de dados: 14
Autores: BONATO, E. R.
bitstream/item/133916/1/ID43407-1990-1991sojaresultados-p12-15.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1029463

Abortamento em bovinos.
Provedor de dados: 14
Autores: SA, W. F. de.
bitstream/item/143006/1/2043.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Aborto; Bovino.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/587651

Avaliação da resistência de cultivares de amendoim as cercorporioses.
Provedor de dados: 14
Autores: SOARES, J. J.; LIMA, E. F.
bitstream/item/33277/1/AVALIACAO.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Cultivar; Cercospora personataa; Brasil; Pernambuco; Peanut; Resitance.; Amendoim; Arachis Hypogaea; Cercospora Arachidicola; Resistência; Surubim.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/262820

Espaçamento de plantio de maracujá sob dois sistemas de irrigação localizada.
Provedor de dados: 14
Autores: ANDRADE, C. de L. T. de; VASCONCELOS, L. F. L.; TAVARES, E. D.
bitstream/item/72656/1/CPAMN-PESQ.-AND.-13-91.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Espaçamento; Maracujá; Irrigação; Plantio.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/72657

Efeito de calcário e de gesso no rendimento da cultura da soja.
Provedor de dados: 14
Autores: PERUZZO, G.; ROMAN, E. S.; WIETHÖLTER, S.
bitstream/item/133984/1/ID43423-1990-1991sojaresultados-p130-132.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Correção de solo.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1029557

Plano anual de trabalho - Centro de Pesquisa Agropecuária do Trópico Semi-Árido - CPATSA - 1991.
Provedor de dados: 14
Autores: EMBRAPA. Centro de Pesquisa Agropecuária do Trópico Semi-Árido.
Atividades de pesquisa; Objetivos; Metas; Planejamento; CPATSA.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Atividade de pesquisa; Plano de trabalho; CPATSA; Programa; Memória técnica do CPATSA; Orçamento; Pesquisa.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/162713

Relatório técnico.
Provedor de dados: 14
Autores: REUNIÃO DA COMISSÃO TÉCNICA REGIONAL DE FEIJÃO - REGIÃO I, 4., 1991, Londrina.
A IV Reunião da Comissão Técnica Regional de Feijão da Região I, realizada no Instituto Agronômico do Paraná - IAPAR, em Londrina, caracterizou-se mais uma vez como uma reunião de intercâmbio de conhecimento, discussão de metodologias, apresentação de resultados e planejamento de trabalhos integrados com a cultura do feijoeiro.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Feijão; Phaseolus Vulgaris; Melhoramento Genético Vegetal.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1110436

Soja: resultados de pesquisa 1990-1991.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Trigo.
bitstream/item/133908/1/ID3284-1990-1991sojaresultados.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/815050

Recomendacoes tecnicas para a cultura da soja na Regiao Central do Brasil.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Soja (Londrina, PR).
Solos e nutricao vegetal; Conservacao do solo; Correcao de solo e manutencao de fertilidade; Calagem; Qualidade do calcario e condicoes de uso; Correcao da acidez subsupercial; Adubacao em solos do Cerrado; Adubacao fosfatada; Adubacao potassica; Adubacao com micronutrientes; Adubacao foliar com macro e micronutrientes; Inoculacao; Plantas daninhas; Tecnologia de sementes; Estabelecimento de campo de semente; Colheita; Avaliacao; Manejo de pragas; Praticas culturais; Manejo do solo; Rotacao de culturas; Epoca de semeadura; Genetica e melhoramento; Fitopatologia.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Recomendacao tecnica; Adubacao fosfatada; Adubacao potassica; Planta daninha; Manejo de praga; Fitopatologia; Brasil; Soybean; Fertilizer; Seed; Inoculation; Weed; Genetic; Phytopathology; Pests management; Technical directions.; Adubação Foliar; Inoculação; Glycine Max; Genética; Melhoramento; Nutrição Vegetal; Pesquisa; Pratica Cultural; Semente; Soja; Solo.; Brazil; Crop management; Breeding; Plant nutrition; Soil.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/447041

Preparo do solo e adubação residual na cultura do milho em áreas irrigadas.
Provedor de dados: 14
Autores: CHOUDHURY, E. N.; MELLO, C. A. de O. e; MORGADO, L. B.
Diferentes metodos de preparo do solo foram testados quanto a producao e distribuicao do sistema radicular do milho, sob o efeito residual de fertilizantes.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Maize; Rooting system; Fertility.; Solo; Adubação; Irrigação; Manejo; Milho; Sistema Radicular; Zea Mays.; Irrigation; Soil.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131773

Comportamento de progênies avançadas de sorgo forrageiro no Estado de Sergipe.
Provedor de dados: 14
Autores: CARVALHO, H. W. L. de.
bitstream/item/90676/1/CPATC-PESQ.-AND.-45-91.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Melhoramento genético; Brasil; Sergipe.; Sorgo Forrageiro.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/356590

Custo médio de produção de suínos para abate: anexo 43 - marco/91.
Provedor de dados: 14
Autores: GIROTTO, A. F.
bitstream/item/58754/1/CUsersPiazzonDocuments174.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Custo médio; Suínos.; Abate.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/435974

Ocorrência e controle químico do cascudinho (Aracanthus mourei) no feijoeiro.
Provedor de dados: 14
Autores: ÁVILA, C. J.; GOMEZ, S. A.
bitstream/item/40847/1/COT-41.91.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Insetos; Pragas; Ocorrência; Controle; Aracanthus mourei.; Cerrado; Feijão.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/236871

Leite: mão de obra define custo e produção.
Provedor de dados: 14
Autores: GOMES, A. T.
Tipo: Artigo de periódico
Palavras-chave: Custo; Leite; Produção.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/590379

Fenologia e produção de sementes de sete espécies de leguminosas cultivadas em solos arenosos.
Provedor de dados: 14
Autores: GARCIA, L. F.
bitstream/item/72665/1/CPAMN-PESQ.-AND.-12-91.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Cultivo.; Leguminosa; Produção; Semente; Solo.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/72656

Multiplicação de sementes de leguminosas forrageiras em Paragominas, Pará.
Provedor de dados: 14
Autores: DIAS FILHO, M. B.; SERRÃO, E. A. S.; COVRE, J. L.
bitstream/item/57475/1/CPATU-ComTec62.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Planta leguminosa forrageira; Multiplicação; CIAT 5178; CIAT 5277; CIAT 184; Paragominas; Pará; Brasil; Forage legume; Seed; Multiplication; Production.; Centrosema Brasilianum; Produção; Semente; Stylosanthes Guianensis.; Centrosema acutifolium; Amazonia.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381241

Diagnóstico das indústrias de serraria do Estado do Acre.
Provedor de dados: 14
Autores: ARAUJO, H. J. B. de.
Introdução; Área de abrangência do estudo; Empresas amostradas; Características gerais do setor: Número de serrarias em atividade; Classificação e caracterização das empresas; Área construída; Equipamentos e arranjo físico; Mão-de-obra utilizada; Consumo energético; Reposição florestal; Estrutura organizacional; Matéria-prima: Origem e consumo; Aquisição de matéria-prima; Preços praticados; Espécies utilizadas; Exploração florestal; Características da matéria-prima; Transporte; Estoque e estocagem; Produção; Produção efetiva; Produtos; Deficiências no processo produtivo; Rendimento; Espécies com problemas de aproveitamento; Resíduos; Eficiência da mão-de-obra; Segurança no trabalho; Comercialização; Mercado e consumidores; Preços praticados; Participação...
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Acre.; Indústria; Madeira; Serraria.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/507544

SAFIRA.
Provedor de dados: 14
A cultivar Safira pertence ao grupo comercial 'roxinho' indicada para plantio no Distrito Federal e em Goiás. A média de produção durante o inverno chegou a 3.319 Kg/ha. Esta cultivar é resistente ao mosaico comum e ao crestamento bacteriano comum, ferrugem e mancha angular.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Safira; Feijão; Phaseolus vulgaris; Melhoramento genético vegetal; Variedade.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/193521

A resinose do cajueiro.
Provedor de dados: 14
Autores: FREIRE, F. das C. O.
Áreas de ocorrência da resinose; Sintomas da resinose; Como controlar a resinose.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Anacardium Occidentale; Caju; Doença de Planta.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/663601

Procedimentos na coleta das amostras do solo.
Provedor de dados: 14
Autores: MATTOS, M. L. T.
A analise quimica do solo constitui um dos metodos de diagnose mais empregados na avaliacao da necessidade de nutrientes para as plantas. Asamostras simples deverao ser colocadas em um balde ou recipiente limpoe misturadas, separando-se cerca de 500 gramas para enviar ao laboratorio. Em areas cultivdas a amostra deve ser coletada apos o preparo do solo, evitando-se coletar no sulco de plantio. A coleta pode ser feitaem qualquer epoca do ano, entretanto, recomenda-se faze-la um mes e meio ou dois antes da epoca da adubacao. O trabalho orienta ainda sobre os equipamentos de amostragem, embalagem e identificacao de amostras.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Coleta de amostra.; Análise; Solo.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/52696

Precipitação pluviometrica e temperaturas observadas durante a safra de soja de 1990/91, em Passo Fundo, RS.
Provedor de dados: 14
Autores: BONATO, E. R.
bitstream/item/133903/1/ID10371-1990-1991sojaresultados-p7-9.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/822143

Profundidade e posição de semeadura de sementes de castanha-do-brasil.
Provedor de dados: 14
Autores: MÜLLER, C. H.; FIGUEIRÊDO, F. J. C.
bitstream/item/34032/1/CPATU-CirTec62.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Castanha-do-brasil; Base física do CPATU; Belém; Pará; Brasil; Brazil nut; Seed; Plantation; Seeding.; Plantio; Semeadura; Semente.; Amazonia.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381202

Custo de produção de soja na região de Dourados, MS, safra 1991/92.
Provedor de dados: 14
Autores: MELO FILHO, G. A. de; KRUKER, J. M.
bitstream/item/40849/1/COT-43.91.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Brasil; Mato grosso do sul; Dourados.; Custo; Produção; Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/236998

Coleta de germoplasma da aveia no Sul do Brasil - 1a. expedição.
Provedor de dados: 14
Autores: GOMES, K. E.; VALLS, J. F. M.; MORAES, C. O. C.; CALVET, E.; GOEDERT, C. O.
bitstream/item/90528/1/1714-Coleta-de-germoplasma-de-aveia.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Coleta; Brasil; Regiao Sul; Oat; Colletion.; Aveia; Germoplasma.; Germplasm; Brazil.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/171307

CULTIVAR de soja BR-30.
Provedor de dados: 14
Caracteristicas botanicas e agronomicas; Caracteristicas; Reacao a enfermidades; Resultados; Recomendacoes e informacoes.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Cultivar BR-30.; Soja; Variedade; Melhoramento.; Soybeans; Cultivars.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/444329

CENTRO Nacional de Pesquisa de Trigo.
Provedor de dados: 14
bitstream/item/119464/1/FOL-04369.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: EMBRAPA; Instituição.; Pesquisa; Trigo.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/847349

Idade de início de arraçoamento e tipo de ração para leitões em aleitamento.
Provedor de dados: 14
Autores: FERREIRA, A. S.; SOBESTIANSKY, J.; LIMA, G. J. M. M. de; BARIONI JUNIOR, W.; MORES, N.
bitstream/item/58751/1/CUsersPiazzonDocuments177.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Leitões.; Aleitamento; Arraçoamento.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/435964

FORMAÇÃO de mudas de café.
Provedor de dados: 14
bitstream/item/55546/1/FD-079-0001.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Variedades; Sementes; Instalação do viveiro; Preparo das sacolinhas; Semeadura na sacolinha; Práticas no viveiro.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/710619

Avaliação da eficiência de inseticidas de ação fisiológica no controle da lagarta Anticarsia gemmatalis Huebner, 1818, na cultura da soja.
Provedor de dados: 14
Autores: LORINI, I.; SALVADORI, J. R.; GASSEN, D. N.
bitstream/item/133978/1/ID43420-1990-1991sojaresultados-p115-118.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1029551

Custo de produção de trigo na região de Dourados, MS, safra 1991.
Provedor de dados: 14
Autores: MELO FILHO, G. A. de; KRUKER, J. M.
bitstream/item/40848/1/COT-42.91.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Brasil; Mato grosso do sul; Dourados.; Custo; Produção; Trigo.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/236823

O ciclo estral de bovinos e métodos de controle.
Provedor de dados: 14
Autores: VALLE, E. R. do.
Introdução; Órgãos reprodutivos de fêmeas bovinas; Ciclo estral; Distúrbios reprodutivos; Controle do ciclo estral e ovulação; Requisitos essenciais.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Aparelho Reprodutor; Bovino; Ciclo Estral; Reprodução.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/321570

Plano diretor do CPATU: primeira versão (PDU).
Provedor de dados: 14
Autores: EMBRAPA. Centro de Pesquisa Agroflorestal da Amazônia Oriental.
Analise do ambiente externo do CPATU: relacionamento interinstitucional, consideração sobre o setor agrícola regional, recursos naturais, sistemas produtivos, oportunidades e ameaças de caráter geral. Missão e objetivos do CPATU. Analise e ambiente interno. Diretrizes, estratégias.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agropecuária; Research institution.; Instituição de Pesquisa; Planejamento.; Amazonia; Agriculture; Planning.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/386288

Formas anormais de comportamento dos suínos:possíveis causas e alternativas de controle.
Provedor de dados: 14
Autores: SOBESTIANSKY, J.; MARTINS, M. I. M.; BARCELLOS, D. E. S. N. de; SOBRAL, V. B. G. M.
bitstream/item/42084/1/circulat-tec-14.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Suínos; Sanidade; Comportamento anormal.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/435957

Desempenho de leitões da raça Piau alimentados com o milho BR 451.
Provedor de dados: 14
Autores: MOREIRA, H. A.; MONTEIRO, M. A. R.; SACRAMENTO, A. J. R. do; TEIXEIRA, E. W.
bitstream/item/30640/1/Pesq.And.-8.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: BR 451; Maize.; Leitão; Milho; Nutrição Animal; Suíno; Zea Mays.; Animal nutrition; Swine.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/478739

Avaliação sócio-econômica do município do Poço Redondo.
Provedor de dados: 14
Autores: CINTRA, F. L. D.; SOUZA FILHO, G. P.; BARRETO, M. A. B.; BARRETO, A. C.
bitstream/item/42336/1/Aval0001.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Avaliação; Município; Poço Redondo.; Recurso Natural.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/363065

Identificação de genótipos de soja resistentes a antracnose, a queima da haste e da vagem e a mancha purpura.
Provedor de dados: 14
Autores: COSTAMILAN, L. M.; BONATO, E. R.
bitstream/item/133904/1/ID10222-1990-1991sojaresultados-p81-83.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/821992

Semeadura.
Provedor de dados: 14
Autores: ENDRES, V. C.
bitstream/item/65211/1/29636.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Brasil; Mato Grosso do Sul.; Densidade de Semeadura; Espaçamento; Época de Semeadura; Milho.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/252894

Controle biológico da lagarta-do-cartucho, Spodoptera frugiperda, com o baculovírus.
Provedor de dados: 14
Autores: VALICENTE, F. H.; CRUZ, I.
Uso do baculovirus; Modo de atuacao do baculovirus; Descricao e biologia da praga; Quando recomendar o controle; Resultados de pesquisa com o baculovirus na EMBRAPA/CNPMS; Resultados de laboratorio; Resultados de aplicacoes no campo; Recomendacoes para o uso do baculovirus no controle da lagarta do cartucho; Epoca de aplicacao; Tamanho da lagarta; Pulverizacao; Hora de aplicacao.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Lagarta-do-cartucho; Pest.; Baculovirus; Controle Biológico; Milho; Praga; Spodoptera Frugiperda.; Biological control.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/471750

Enraizamento de estacas de cajueiro sob condições de irrigação por nebulização intermitente.
Provedor de dados: 14
Autores: CORREA, M. P. F.; BUENO, D. M.; ROSSETTI, A. G.; PINHEIRO, P. A.; ARAUJO, C. A. T. de.
bitstream/CNPAT-2010/7172/1/Pa-001.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Cajueiro; Estaquia; Enraizamento - Cajueiro.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/424479

Biometria e métodos para superação da dormência de sementes de taxi-branco, Sclerolobium paniculatum Vogel.
Provedor de dados: 14
Autores: CARVALHO, J. E. U. de; FIGUEIREDO, F. J. C.
bitstream/item/42025/1/Boletim-Pesquisa-114-CPATU.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Taxi-branco; Belém; Pará; Brasil; Leguminous; Seed.; Biometria; Dormência; Germinação; Leguminosa; Semente.; Sclerolobium Paniculatum; Amazonia; Germination.; Biometry; Dormancy.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/382566

Introdução e avaliação de forrageiras no município de Santana do Araguaia, Estado do Pará.
Provedor de dados: 14
Autores: SOUZA FILHO, A. P. da S.; TEIXEIRA NETO, J. F.; CAMARAO, A. P.; TEIXEIRA, R. N. G.
bitstream/item/32017/1/CPATU-BP115.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Avaliacao; Teor; Santana do Araguaia; Pará; Brasil; Forage crop; Valuation; Grass; Leguminous; Dry matter; Production; Analysis.; Análise; Cálcio; Fósforo; Gramínea; Leguminosa; Matéria Seca; Planta Forrageira; Produção.; Amazonia; Calcium; Phosphorus.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381029

Limao tahit: aspectos economicos e tecnicas de cultivo.
Provedor de dados: 14
Autores: COELHO, Y. da S.; MASCARANHAS, J. M.
Origem, historia e importancia economica; Botanica e Fenologia; Rendimentos; Porta-enxertos; Adubacao; Controle das ervas daninhas; Pragas e controle; Doencas.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Cultivo Aspectos economicos; Citros; Cultivar; Aspectos economico.; Limão.; Tahiti.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/638034

Efeito da prensagem da uva na composição do vinho Sémillon.
Provedor de dados: 14
Autores: RIZZON, L. A.; ZANUZ, M. C.; MENEGUZZO, J.
Com o objetivo de verificar a influência da intensidade de prensagem da uva na composição química do vinho, realizowe um experimento com uvas da cultivar Sémillon (Vitis vinifera L.) da safra de 1987, Foram comparados vinhos elaborados a partir do mosto gota com outros três níveis de prensagem obtidos pela açáo de uma prensa horizontal do tipo Vaslin. Além das análises clássicas, foram 'determinados os cátions através de espectrofotometria de absorção atômica, o ácido tartarico por cromatografia líquida a alta resolução (HPLC) e alguns compostos voláteis com o auxilio da cromatografia em fase gasosa. Com o aumento da prensagem da uva, verificou-se um aumenta do teor de alguns cátions, do pH, cinzas, alcalinidade das cinzas, intensidade de cor, polifenóis...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Composição Química; Enologia; Mosto; Prensagem; Processamento; Uva; Vinho.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/535843

O desenvolvimento rural e o setor público agrícola: a questão tecnológica e uma agenda para o entendimento.
Provedor de dados: 14
Autores: FLORES, M. X.
Tecnologia agropecuária no contexto da crise brasileira; A tecnologia agropecuária no contexto estadual e municipal; Acoes estratégicas da EMBRAPA quanto ao SCPA e o SIBRATER.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Desenvolvimento; Development.; Agricultura; Desenvolvimento Rural.; Agriculture; Rural development.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/94449

Plano diretor da unidade: versão proposta PDU0.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Trigo.
bitstream/item/121277/1/FL-06765.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: CNPT; PDU.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/849743

Integração do controle biológico com outros métodos de controle de doenças de plantas.
Provedor de dados: 14
Autores: GHINI, R.
bitstream/item/150237/1/1991PL006-Ghini-Integracao-680.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Controle Físico; Controle Químico; Controle Biológico; Fungicida; Doença; Integração; Método; Planta.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/10039

Resultados de pesquisa com trigo - 1990.
Provedor de dados: 14
Autores: REUNIÃO DA COMISSÃO CENTRO-SUL-BRASILEIRA DE PESQUISA DE TRIGO, 7., 1991, Curitiba.
bitstream/item/65906/1/CPAO-DOC.-47-91.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Pesquisa; Trigo.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/878320

Curso-anatomia e identificação de madeiras amazônicas.
Provedor de dados: 14
Autores: GOMES, J. I.
bitstream/item/197297/1/FL01603.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Anatomia de madeira; Identificação de madeira; Brasil; Identification; Amazonia; Wood anatomy.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375605

Efeitos da adição de acidificante e/ou antibiótico em dietas de frangos de corte.
Provedor de dados: 14
Autores: GOMES, P. C.; LIMA, G. J. M. M. de; AVILA, V. S. de; GOMES, M. F. M.
bitstream/item/58767/1/CUsersPiazzonDocuments166.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Frango de Corte; Nutrição.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/435849

Queima das folhas de bananeiras no Nordeste do Brasil
Provedor de dados: 14
Autores: BORGES, A. L.; CINTRA, F. L. D.
A banqnicultura e uma das principais exploracao agricolas do Nordeste e, entre as fruteiras, assume importancia fundamental por seu valor economico e social, mulhorando a dieta alimentar das populacoes mais carentes e contribuindo para fixar o pequeno proprietario na zona rural. A regiao Nordeste produz cerca de 2,1 milhoes de toneladas de banana/ano, representando 42% da producao brasileira (CUNHA, 1984). A introducao da bananicultura em regiao de baixa precipitacao pulviometrica, feita normalmente com o uso da irrigacao, tem grande potencial de crescimento, nao so por ser uma das prantas de maior consumo na regiao como tambem pela extencao de areas disponiveis ao plantio. A sua exploracao, no entanto, e limitada, principalmente por problemas de...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Bananeira.; Salinidade; Solo.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/637989

Disponibilidade de fosforo nos fosfatos de Tapira e fosforindus e na farinha de ossos para suinos.
Provedor de dados: 14
Autores: GOMES, P. C.; LIMA, G. J. M. M. de; BARBOSA, H. P.; GOMES, M. F. M.; BELLAVER, C.
bitstream/item/58769/1/CUsersPiazzonDocuments164.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Suínos; Fosfato Tapira; Fosforindus; Farinha osso.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/435850

Aspectos da comercialização do melão, melancia e abóbora irrigados na região do Submédio S. Francisco, no período de 1986 a 90.
Provedor de dados: 14
Autores: ARAUJO, J. L. P.; CHOUDHURY, M. M.; ORESUTU, B. A.
Este trabalho analisa a estabilidade de preço e relação de troca do melão, melancia e abóbora, na região do Submédio S. Francisco, durante o período de 1986 a 90. O método empregado para calcular a estacionalidade dos preços foi a média móvel de doze meses e os dados fpram corrigidos pelo Índice Geral de Preços (IGP) da Fundação Getúlio Vargas, que tamb´em foi empregado para a determinação dos preços reais dos produtos e insumos na análise da relação de troca. Os resultados mostraram que: Os maiores índices estacionais do melão foram entre os meses de fevereiro a julho, com o mês de maio revelando o maior preço, os maiores índices estacionais da melancia foram entre os meses de março a julho, com o mês de junho registrando o maior preço; os maiores índices...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Estacionalidade de preço; Agricultura irrigada; Submnédio São Francisco.; Melão; Abóbora; Comercialização; Melancia.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/157787

Sternechus subsignatus, como praga da soja.
Provedor de dados: 14
Autores: GASSEN, D. N.
bitstream/item/122127/1/FL-06047.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Descrição; Danos; Controle.; Biologia; Inseto.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/849028

Crotalárias para controle de nematóide em fruteiras irrigadas e melhoria das características físico-quimicas dos solos.
Provedor de dados: 14
Autores: CHOUDHURY, E. N.; CHOUDHURY, M. M.; DIAS, F. A. N.
bitstream/item/45467/1/PA-64-1991.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Controle; Caracteristica fisico-quimica; Fruit; Nematode; Control; Physicochemical characteristic.; Nematóide; Fruta; Irrigação; Solo.; Irrigation; Soil.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131766

Custo médio de produção de suínos para abate: anexo 44 - junho/91.
Provedor de dados: 14
Autores: GIROTTO, A. F.
bitstream/item/58748/1/CUsersPiazzonDocuments180.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Custos; Costs.; Abate; Suíno.; Slaughter; Swine.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/435264

Informações meteorológicas do CNP - Mandioca e Fruticultura Tropical.
Provedor de dados: 14
Autores: ALMEIDA, O. A. de.
Os setores agropecuários ressentem-se de informações meteorológicas para conhecimento da realidade climática da região onde estão atuando, a fim de que possam definir os tipos de cultura e pastagens a serem implantados, época de plantio, períodos de irrigação etc. Objetivando suprir essas necessidades para o município de Cruz das Almas-BA e parte da região do recôncavo baiano. O Centro Nacional de Pesquisa de Mandioca e Fruticultura Tropical - CNPMF, dispõe de uma Estação Meteorológica em sua área experimental onde são feitas observações diárias dos elementos meteorológicos. Os dados médios mensais e alguns parâmetros estatísticos estimados dos anos 1971 a 1989 são apresentados em tabelas e gráficos onde foi possível observar que a temperatura media do ar...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Balanço Hídrico; Clima.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/636357

Fatores condicionantes a eficiência técnica e econômica da cajucultura nordestina.
Provedor de dados: 14
Autores: PAULA PESSOA, P. F. A.; LEMOS, J. de J. S.
Com base em dados levantados pelo CNPCa/EMBRAPA, relativos a safra 1988/89, testou-se a hipotese de que a baixa eficiencia tecnica e economica da cajucultura nordestina esta condicionada a fatores economicos, sociais e agronomicos. No Estado do Ceara, constatou-se que, dentro as variaveis com maior influencia positiva sobre a eficiencia tecnica e economica, destacaram-se o valor da terra ou qualidade dos solos, mao-de-obra empregada, educacao e montante de credito de custeio. No piaui, as variaveis da maior importancia na explicacao da eficiencia tecnica e economica foram idade do plantio, numero de plantas por hectare, assistencia tecnica e mao-de-obra empregada.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Caju - Socio - Economia - Caju - Produtividade; Caju - Economia - Brasil - Nordeste - Ceara.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/418630

Bebedouro de nivel para suinos.
Provedor de dados: 14
Autores: OLIVEIRA, P. A. V. de; LEAL, P. M.; PERDOMO, C. C.
bitstream/item/58757/1/CUsersPiazzonDocuments171.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Nível; Suínos.; Bebedouro.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/435890

Fungicidas para o controle do mal-das-folhas (Microcyclus ulei) da seringueira.
Provedor de dados: 14
Autores: SANTOS, A. F. dos; PEREIRA, J. C. R.
Objetivando ampliar e fornecer alternativas para contornar o problema da pouca disponibilidade de produtos eficientes para o combate do mal-das-folhas (Microcyclus ulei) em seringueira, a partir de 1983, no CPAA, foram intensificados os testes com diferentes produtos, produrando-se selecionar fungicidas e doses eficientes.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Mal-das-folhas; Brasil; Bahia; Rubber tree; Species; Fungal diseases; South American leaf blight.; Controle Químico; Doença; Espécie; Folha; Hevea; Microcyclus Ulei; Seringueira.; Chemical control; Leaves.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665569

Levantamento da ocorrência de Sternechus subsignatus no Rio Grande do Sul.
Provedor de dados: 14
Autores: LORINI, I.; SECCHI, V. A.; SALVADORI, J. R.; GASSEN, D. N.; LORINI, M.
bitstream/item/133935/1/ID43416-1990-1991sojaresultados-p86-94.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1029488

Agricultura de subsistência na produção de arroz: experiência no Maranhão.
Provedor de dados: 14
Autores: TEIXEIRA, S. M.; ROBISON, D.; ALBUQUERQUE, J. M.
Constitui objetivo deste estudo, oferecer subsídios ao processo de pesquisa com a cultura do arroz pela caracterização do ambiente da produção no Estado do Maranhão. Especificamente, propõe-se descrever as áreas e sistemas de produção, o papel dos diferentes grupos de agricultores, a mão-de-obra empregada, importância do trabalho e composição da família e o papel da mulher e criança em diferentes fases do processo produtivo.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Sistema; Maranhão; Subsistência.; Arroz; Oryza Sativa; Produção.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/192396

Avaliação de linhagens e de cultivares de soja. VI. Análise conjunta do rendimento de grãos dos ensaios de cultivares recomendadas.
Provedor de dados: 14
Autores: BONATO, E. R.
bitstream/item/133929/1/ID43414-1990-1991sojaresultados-p64-69.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1029482

Uniformidade de distribuição de plantas em lavouras de soja.
Provedor de dados: 14
Autores: TORRES, E.; GARCIA, A.
bitstream/item/53939/1/48.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Distribuicao espacial; Brasil; Parana; Soybean; Production; Yield; Cultural practice.; Produtividade; Pratica Cultural; Soja.; Brazil.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445648

Inibidores de Germinação no Fruto e em Sementes de Pequi (Caryocar brasiliense Camb.) .
Provedor de dados: 14
Autores: MELO, J. T. de; GONCALVES, A. N.
bitstream/item/75930/1/bolpd-34.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Fruta nativa; Planta nativa; Indigenous organisms; Plant growth regulators.; Caryocar Brasiliense; Cerrado; Dormência da Semente; Fruto; Germinação; Pequi; Regulador de Crescimento.; Dormancy; Germination; Seeds.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/547914

Hortalicas irrigadas no Nordeste: fitodoencas alternativas de controle.
Provedor de dados: 14
Autores: TAVARES, S. C. C. de H.
Aborda as fitodoencas que ocorrem nas hortalicas irrigadas no Nordeste do Brasil e alternativas de controle. Abrange nocoes sobre doencas e alternativas para um controle racional de doencas, como tambem as principais doencas de algumas culturas como: tomate, melao e melancia. Nao publicado.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Controle; Brasil; Nordeste; Disease; Control; Melon; Watermelon; Tomato; Vegetable.; Hortaliça; Irrigação; Doença; Citrullus Lanatus; Cucumis Melo; Lycopersicon Esculentum; Melão; Melancia; Tomate.; Irrigation.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133516

CULTIVAR de soja BR-24.
Provedor de dados: 14
Características botânicas e agronômicas; Características; Reação a enfermidades; Resultados; Recomendações e informações.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Cultivar BR-24.; Soja; Variedade; Melhoramento.; Soybeans; Cultivars.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/444327

Resultados dos ensaios sul-brasileiros de trigo no Rio Grande do Sul, em 1990.
Provedor de dados: 14
Autores: MOREIRA, J. C. S.
bitstream/item/121248/1/FL-06511.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: RS; Cultivar.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/849489

Controle químico de Corynespora cassiicola em tomateiro na região de Manaus.
Provedor de dados: 14
Autores: CARDOSO, M. O.; NORMANDO, M. C. de S.
Foi conduzido um ensaio para avaliação da eficiência de cinco fungicidas (Benomyl, Mancozeb, Clorothalonil, Tiofanato metilico, oxicloreto de cobre), aplicados isoladamente ou em misturas. Benomyl isoladamente e em mistura com Mancozeb foram os tratamentos que mostraram maior eficiência no controle de Corynespora cassiicola em tomateiro.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Lycorpersicon; Brasil; Amazonas; Diseases; Fungal diseases.; Controle Químico; Corynespora Cassiicola; Doença; Fungo; Folha; Queima da Folha; Tomate.; Chemical control; Leaves.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665080

Competição entre cultivares de juta local vs linhagens introduzidas da Índia.
Provedor de dados: 14
Autores: SILVA, J. F. da; MOTA, M. G. da C.
bitstream/item/67238/1/Belem-ComTec3.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Cultivar; Produtivadade; Alenquer; Pará; Brasil; Variety; Yield.; Corchorus Capsularis; Juta.; Amazonia; Jute.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/379660

Utilização de soja tostada para suínos em crescimento e terminação.
Provedor de dados: 14
Autores: FIALHO, E. T.; OLIVEIRA, P. V. de; BARBOSA, H. P.; ABREU, J. L. M. de; GIROTTO, A. F.
bitstream/item/58761/1/CUsersPiazzonDocuments168.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Soja tostada; Suínos.; Crescimento; Terminação.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/435931

Controle de percevejos da soja por Trissolcus basalis.
Provedor de dados: 14
Autores: CORREA-FERREIRA, B. S.
O que e o Trissolcus?; Multiplicacao do parasitóide; Utilização e liberação. Lembretes.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Praga de planta; Controle biológico; Soja; Plant pests; Biological control.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445134

Adubação de pastagem de capim colonião em degradação, em Santana do Araguaia - Pará.
Provedor de dados: 14
Autores: SOUZA FILHO, A. P. da S.; TEIXEIRA NETO, J. F.; VEIGA, J. B. da.
bitstream/item/32042/1/CPATU-BP120.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Pastagem degradada; Recuperacao de pastagem; Capim-coloniao; Santana do Araguaia; Pará; Brasil; Fertilizer; Degraded pasture; Pasture recuperation; Leguminous.; Adubação; Leguminosa; Panicum Maximum.; Amazonia.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/383637

Boletim agrometeorológico 1991.
Provedor de dados: 14
Autores: OLIVEIRA, C. A. D. de; SOUZA, M. L. M. de; CABRAL, O. M. R.
bitstream/item/151099/1/BolAgro-1991-C35866.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Climatologia agrícola.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1056347

Profundidade de semeadura para trigo na regiao dos cerrados.
Provedor de dados: 14
Autores: SILVA, D. B. da.
bitstream/item/105886/1/comtec-59.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Wheats; Sowing depth.; Cerrado; Profundidade; Plantio; Semeadura; Triticum Aestivum.; Trigo.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/548651

CULTIVAR de soja BR-36.
Provedor de dados: 14
Caracteristicas botanicas e agronomicas; Caracteristicas; Reacao a enfermidades; Resultados; Recomendacoes e informacoes.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Variedade; Soybeans; Cultivars.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/444330

Sistema de produção para pimenta-do-reino em Rondônia.
Provedor de dados: 14
Autores: EMBRATER (Brasilia, DF).
Sob a coordenação da EMBRAPA/UEPAE de Porto Velho e da EMATER-RO, pesquisadores e extensionistas elaboraram este boletim que tem por finalidade reunir os conhecimentos adquiridos, até então, com a cultura da pimenta-do-reino em Rondônia. A ausência da colaboração de agricultores na elaboração da publicação deve-se à recente introdução da cultura no Estado.
Tipo: Sistema de Produção (INFOTECA-E)
Palavras-chave: Sistema; Brasil; Rondonia.; Pimenta do Reino; Piper Nigrum; Produção.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/698124

Ata...
Provedor de dados: 14
Autores: REUNIAO NACIONAL DE PESQUISA DE GIRASSOL, 9., 1991, Londrina.
bitstream/item/116717/1/id2201.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Congressos; Brasil; Sunflower; Congress.; Girassol; Pesquisa.; Brazil; Research.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445588

Secagem e beneficiamento.
Provedor de dados: 14
Autores: RIBEIRO, S. A. M.
bitstream/item/65219/1/salvador.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Milho.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/932588

Quadros estaduais de cultivares de soja recomendadas para a safra 1991/92.
Provedor de dados: 14
Autores: COMISSOES REGIONAIS DE AVALIACAO E RECOMENDACAO DE CULTIVARES DE SOJA - REGIOES I E II (CRC-SOJA I E CRC-SOJA II).
Cultivares de soja recomendadas para o Estado do(e): Rio Grande do Sul, Santa Catarina, Paraná, Mato Grosso do Sul, Mato Grosso, Goiás, Distrito Federal e Tocantins, Minas Gerais, Bahia, Rondônia; regiões Norte e Nordeste do Brasil.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Cultivar recomendada; Brasil; Soybean; Variety.; Soja.; Brazil.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445294

Flutuação populacional e ciclo biológico de Sternechus subsignatus (Boheman, 1836) (Col., curculionidae) na cultura da soja, 1990/91.
Provedor de dados: 14
Autores: LORINI, I.; SALVADORI, J. R.; GASSEN, D. N.
bitstream/item/133898/1/ID12994-1990-1991sojaresultados-p95-98.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/824779

Trigo: recomendações técnicas para Mato Grosso do Sul.
Provedor de dados: 14
Autores: EMBRAPA. Unidade de Execução de Pesquisa de Âmbito Estadual de Dourados.
Manejo do solo; Nutrição e adubação; Recomendações de cultivares; Ecologia e práticas culturais; Controle de doenças; Controle de pragas.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Cultivo; Recomendação; Brasil; Mato Grosso do Sul.; Trigo.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/252888

Ocorrência de fotossensibilização em equinos mantidos em pastagem de Brachiaria humidicola.
Provedor de dados: 14
Autores: SCHENK, M. A. M.; NUNES, S. G.; SILVA, J. M.
bitstream/item/138780/1/COT-40.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Fotossensibilização em equinos.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/320641

Coeficientes de produção de sementes de mamão hawai.
Provedor de dados: 14
Autores: MULLER, C. H.; FIGUEIREDO, F. J. C.; CARVALHO, J. E. U. de.
bitstream/item/34028/1/CPATU-CirTec61.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Mamao hawai; Seed; Production.; Carica Papaya; Semente.; Produção.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381203

Dinâmica de populações de plantas daninhas na cultura da soja.
Provedor de dados: 14
Autores: VOLL, E.; KARAM, D.; GAZZIERO, D. L. P.
bitstream/item/77936/1/CNPSO-PESQ.-AND.-11-91.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Plantas daninhas; Soybean.; Soja.; Weeds.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445667

Substrato para germinação de sementes de castanha-do-brasil.
Provedor de dados: 14
Autores: MÜLLER, C. H.; FIGUEIREDO, F. J. C.
bitstream/item/57415/1/CPATU-ComTec63.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Castanha-do-brasil; Belém; Pará; Brasil; Brazil nut; Seed.; Bertholletia Excelsa; Germinação; Semente.; Amazonia; Germination.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381242

Cultura do feijão macassar (Vigna unguiculata (L.) Walp.) no Piauí: aspectos técnicos.
Provedor de dados: 14
Autores: CARDOSO, M. J.; FREIRE FILHO, F. R.; ATHAYDE SOBRINHO, C.
A baixa produtividade média de grãos do feijão macassar no Piauí esta relacionada com vários fatores, podendo-se citar: precipitação pluviométrica irregular, cultivares locais susceptiveis a pragas e doenças, além da utilização de consórcio com arranjos espaciais de plantas frequentemente inadequados. Na operação de preparo do solo devem ser levados em conta as caracteristicas e condições físicas do solo. Plantar a mesma cultura anos seguidos numa mesma área e uma prática que deve ser evitada, além de prejudicar as propriedades físicas e químicas do solo favorece a ocorrência de pragas e doenças. No Piauí cerca de 45% de sua área e de cerrado com baixos niveis de nutrientes, altos teores de aluminio trocaveis e pH ácido, por esse motivo a correção do solo...
Tipo: Folhetos
Palavras-chave: Feijão macassar; Caupi; Cultivo; Piaui; Brasil; Vigna Unguiculata.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/50292

Controle do oídio da videira na região do Submédio São Francisco.
Provedor de dados: 14
Autores: CHOUDHURY, M. M.
bitstream/CPATSA/6959/1/COT46.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Controle; Nordeste; Submédio São Francisco; Control; San Francisco Sub-Middle Valley; Grape.; Uva; Fungo; Oídio.; Uncinula necator; Oidium; Grapes.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131787

Perda de peso em grãos armazenados devido ao ataque de insetos.
Provedor de dados: 14
Autores: SANTOS, J. P.; OLIVEIRA, A. C. de.
bitstream/item/30659/1/ct-6.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Grain; Insect; Damage; Losses.; Armazenamento; Dano; Inseto; Grão; Perda; Peso; Praga.; Storage; Weight.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/478756

Comportamento de genótipos de soja em relação à acidez do solo.
Provedor de dados: 14
Autores: BEN, J. R.; BONATO, E. R.
bitstream/item/133933/1/ID43415-1990-1991sojaresultados-p70-78.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1029485

Metamasius sp. (Coleoptera, Curculionidae) vetor do Rhadinaphelenchus cocophilus agente causador do anel vermelho do dendezeiro.
Provedor de dados: 14
Autores: SILVA, H. M. e.
A doença conhecida com Anel Vermelho é de grande importância para o cultivo do dendezeiro, por causar a morte das plantas afetadas. Na Bahia, a doença já causou perdas acima de 50% do stand de algumas plantações, e, no Estado do Pará vem se alastrando gradativamente, chegando a ser a doença mais importante em várias localidades.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Dendê; Doença de Planta; Nematóide; Elaeis Guineensis.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/878775

Controle de percolação em pequenos reservatórios.
Provedor de dados: 14
Autores: LOPES, P. R. C.; SILVA, A. de S.; SHARMA, P. N.
Uns dos principais fatores que contribuem para a baixa eficiencia de utilizacao de agua em pequenos reservatorios na regiao semi-arida sao as perdas por percolacao e por evaporacao. Desta forma, torna-se de fundamental importancia o desenvolvimento e utilizacao de tecnicas apropriadas para o controle destas perdas, principalmente em solos que apresentam baixo conteudo de argila. A percolacao depende muito das propriedades hidraulicas do solo, razao pela qual varia de um tipo para outro. Varios materiais impermeabilizantes foram testados com a finalidade de se determinar sua eficiencia no controle da percolacao. Os tratamentos testados foram: 1) testemunha (reservatorio de terra local sem revestimento); 2) reservatorio revestido com argila compactada e...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Reservatório; Percolação; Impermeabilizante; Material.; Água; Custo; Perda; Revestimento.; Water.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/154425

Efeito do pastejo suplementar em banco de proteína de leucena no acabamento de novilhos de corte em pastagem de capim-buffel.
Provedor de dados: 14
Autores: CARVALHO, H. W. L. de; LANGUIDEY, P. H.
bitstream/item/81736/1/CPATC-COM.-TEC.-29-91.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Leucena; Banco de proteina; Novilhos.; Alimentação; Capim Buffel; Corte; Pastagem; Proteína.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/358878

Uso da hCG na indução hormonal da ovulação em cabras.
Provedor de dados: 14
Autores: GONZALEZ, C. I. M.; MACHADO, R.; SIMPLÍCIO, A. A.; CUNHA, M. das G. G.
bitstream/item/26817/1/COT-25.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Brasil; Nordeste; Northeast.; Caprino; Ovulação; Cabra; Indução; Hormônio animal; Goats; Ovulation; Hormones; Brazil.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/514953

Avaliacao de variedades de gergelim (Sesamum indicum L.) na regiao dos cerrados do Distrito Federal.
Provedor de dados: 14
Autores: FARIAS NETO, A. L. de; FONSECA, C. E. L. da.
bitstream/item/107098/1/pesq-55.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Cultivar; Avaliacao; Distrito Federal; Brasil; Evaluation; Gingelly.; Cerrado; Gergelim; Sesamum Indicum.; Brazil; Varieties.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549394

Caracterização botânica e agronômica de variedades de mandioca no Estado do Acre.
Provedor de dados: 14
Autores: RITZINGER, C. H. S. P.
A cultura da mandioca é tradicional e expressiva no Estado do Acre por sua importância econômica e social nas propriedades agrícolas. Atualmente, a área plantada no Estado é de 17.964 ha com uma produção média de raiz de 335.905 kg, o que coloca a mandioca em quarto lugar em área plantada e primeiro lugar em produção, quando comparada com outras culturas alimentares. Segundo Informe Conjuntural Agropecuário (1990), a mandioca ao longo dos anos vem sendo cultivada sem nenhuma inovação tecnológica e qualquer aumento de produção advém de uma expansão na área de cultivo. A importância que a mandioca adquiriu no últimos anos, graças a sua ampla aplicação industrial, se depara com grandes limitações para expansão de sua área, sendo das principais e insuficiente...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Botânica; Mandioca; Variedade.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492200

Parâmetros genéticos de características produtivas de búfalos (Bubalus bubalis L.) leiteiros.
Provedor de dados: 14
Autores: MARQUES, J. R. F.; LOURENCO JUNIOR, J. de B.; CARVALHO, L. O. D. de M.; NASCIMENTO, C. N. B. do; COSTA, N. A. da; BARBOSA, C.; BATISTA, H. A. M.; RIBEIRO, M. J. P. da S. de S.; RAMOS, A. de A.; PIMENTEL, E. S.
bitstream/item/32060/1/CPATU-BP123.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Bubalino; Melhoramento genetico; Herdabilidade; Repetibilidade; Buffalo; Genetic breeding; Repeatibility.; Genética.; Heritability.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/379790

Alternativas de controle e de eliminação de doenças em rebanho de reprodutores suínos.
Provedor de dados: 14
Autores: MORES, N.
Alternativas de controle; Eliminação de doenças já existentes nos rebanhos
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Reprodutores suínos; Doenças; Controle.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/442171

Avaliação de linhagens e de cultivares de soja. I. Ensaios preliminares de primeiro ano.
Provedor de dados: 14
Autores: BONATO, E. R.
bitstream/item/133919/1/ID43409-1990-1991sojaresultados-p17-22.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1029472

Redução da quantidade de ração para suínos em terminação.
Provedor de dados: 14
Autores: BELLAVER, C.; BARBOSA, H. P.
bitstream/item/58758/1/CUsersPiazzonDocuments170.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Suínos.; Ração; Redução; Terminação.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/435904

Programa de pesquisa em agricultura irrigada: manejo de solo e água.
Provedor de dados: 14
Autores: EMBRAPA. Centro de Pesquisa Agropecuária do Trópico Semi-Árido.
bitstream/item/142440/1/ID-25299.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Agricultura irrigada; Manejo de solo; Engenharia de irrigação; Programa.; Irrigação; Água; Pesquisa.; Irrigation.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/134307

A mosca-dos-chifres (Haematobia irritans) em Rondônia.
Provedor de dados: 14
Autores: SILVA NETTO, F. G. da; TAVARES, A. C.; ALVES, P. M. P.; PEREIRA, R. G. de A.; LIMA, R. P.; PATROCLO, C. de A.
A mosca-dos-chifres (Haematobia irritans) é mais um ectoparasito que vem preocupando os órgãos de defesa sanitária animal, de pesquisa, de assistência técnica e criadores, pelos danos causados principalmente à pecuária bovina. O Estado de Rondônia conta com um rebanho bovino de aproximadamente um milhão e seiscentas mil cabeças. Conforme trabalhos realizados em outros países que acusam prejuízos vultosos, as perdas de produção causadas pela ação da mosca sobre este rebanho, poderão atingir altas proporções, caso não se introduza nenhuma tecnologia de controle. Este documento tem por objetivo, formular algumas orientações de controle com êxito em outras regiões que certamente servirão para diminuir a infestação de moscas e também se constituirá como base...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Horn fly; Besouro africano; Brown dung beetle; Besouro Rola Bosta; Rondônia; Western Amazon.; Amazônia Ocidental; Gado; Mosca dos Chifres; Parasito de Animal; Haematobia Irritans; Inseto Para Controle Biológico.; Cattle; Ectoparasites; Biological control agents; Onthophagus gazella.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/697884

Comportamento de genotipos de amendoim - Arachis hypogaea l. sob condicoes de sequeiro.
Provedor de dados: 14
Autores: SILVA, L. C.; SANTOS, R. C. dos; FARIAS, F. J. C.; MOREIRA, J. de A. N.
bitstream/item/65803/1/Pesquisa-em-andamento-13.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Hypogaea; Brasil; Pernambuco; Mogeiro; Paraiba; Lagoa Seca; Puxinana; Itabaiana; Peanut; Groundnut.; Amendoim; Melhoramento; Surubim.; Arachis; Breeding.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/262830

Efeito de potássio na cultura da soja e relações entre fatores do solo e da planta, no solo Passo Fundo.
Provedor de dados: 14
Autores: WIETHÖLTER, S.; ROSSO, L. J.
bitstream/item/133986/1/ID43424-1990-1991sojaresultados-p133-138.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Adubação.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1029558

Densidade básica da madeira de espécies de Pinus tropicais determinada através de métodos não-destrutivos.
Provedor de dados: 14
Autores: MOURA, V. P. G.; SANTIAGO, J.
bitstream/item/75929/1/bolpd-33.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Densidade; Woody; Pines; Região tropical; Teste de procedência.; Cerrado; Madeira; Método; Procedência; Pinheiro; Variação Genética.; Pinus; Genetic variation; Density; Provenance.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/547940

Soja: adubacao e calagem no Brasil.
Provedor de dados: 14
Autores: SFREDO, G. J.; BORKERT, C. M.
Adubacao; Gesso agricola; Correcao da acidez do solo.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Gesso agricola; Brasil; Soybean; Fertilization.; Acidez; Adubação; Calagem; Soja.; Acidity; Brazil; Gypsum; Liming.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445618

Métodos de extração da goma de cajueiro.
Provedor de dados: 14
Autores: BANDEIRA, C. T.
A goma do cajueiro tem inumeras utilidades comerciais: fabricacao de cola para papel e madeira, estabilizacao da espuma da cerveja, conservacao de sabor dos alimentos industrializados, preservacao de cristais de acucar nas industrias de sorvete, com o objetivo de evitar o seu descongelamento rapido. Acredita-se, no entanto, que seu maior potencial de utilizacao seja na industria farmaceutica, onde e usada na fabricacao de capsulas e comprimidos, servindo como aglutinante de seus componentes.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Cajueiro - goma - extracao; Goma de cajueiro - utilidades comerciais.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/418581

Morte progressiva do cupuacuzeiro.
Provedor de dados: 14
Autores: LIMA, M. I. P. M.; SOUZA, A. das G. C. de; GASPAROTTO; L.; GUIMARAES, R. R.
Descricao sobre a morte progressiva nos cultivos de cupuacu (Theobroma grandiflorum (Willd. ex Spreng.) Schum.) no estado do Amazonas, bem como das medidas para seu controle.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Lasiodiploidia theobromae; Brasil; Amazonas; Diseases.; Cupuaçu; Controle Químico; Doença; Morte Progressiva; Theobroma Grandiflorum.; Chemical control.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665570

Formulas de racao balanceada com ingredientes alternativos para suinosnas diversas fases do ciclo de producao.
Provedor de dados: 14
Autores: BARBOSA, H. P.; FIALHO, E. T.
Racoes de gestacao; Racoes de lactacao; Racoes de leitoes no aleitamento (Leitoes ate 10 Kg de peso vivo); Racoes de leitoes na ch\\reche (10 a 20 Kg de peso vivo); Racoes de crescimento (25 a 55 Kg de peso vivo); Racoes de terminacao (55 a 95 Kg de peso vivo); Utilizacao das formulas: cuidados que devem ser observados; Indice das formulas de racao para suinos nas diferentes fases do ciclo de producao.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Ration.; Ração; Suíno.; Swine.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/433923

Principais pragas do caupi no Brasil.
Provedor de dados: 14
Autores: QUINTELA, E. D.; NEVES, B. P. das; QUINDERÉ, M. A. W.; ROBERTS, D. W.
Lagarta elasmo (Elasmopalpus lignosellus); Vaquinhas (Diabrotica speciosa, Cerotoma arcuata); Cigarrinha verde (Empoasca kraemeri); Pulgão preto (Aphis craccivora); Minador (Liriomyza sativae); Lagarta das vagens (Maruca testulalis, Etiella zinckenella); Manhoso (Chalcodermus bimaculatus); Percevejos (Crinocerus sanctus, Piezodorus guildini, Acrostermum sp); Caruncho (Callosobruchus maculatus); Tabelas.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Caupi.; Inseto; Praga; Vigna Unguiculata.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/195948

Características da produção leiteira em búfalos (Bubalus bubalis L.).
Provedor de dados: 14
Autores: MARQUES, J. R. F.; NASCIMENTO, C. N. B. do; CARVALHO, L. O. D. de M.; LOURENÇO JUNIOR, J. de B.; COSTA, N. A. da; BATISTA, H. A. M.; RIBEIRO, M. J. P. da S. de S.; BARBOSA, C.; RAMOS, A. de A.; PIMENTEL, E. S.
bitstream/item/41643/1/Boletim-Pesquisa-121-CPATU.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Percentagem; Fonte de variação; Bubalino; Característica; Estatística descritiva; Melhoramento genético; Fat percentage; Genetic breeding; Management; Sources of variation; Buffalo; Characteristic.; Animal; Gordura; Leite; Lactação; Manejo.; Lactation; Milk; Statistics.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/383556

BIBLIOTECA Edmundo da Fontoura Gastal.
Provedor de dados: 14
bitstream/item/100593/1/Biblioteca-Gastal.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: EMBRAPA; Sede; Library.; Biblioteca.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/86817

Relatório técnico anual do Centro Nacional de Pesquisa de Caju 1989-1990.
Provedor de dados: 14
Autores: EMBRAPA-CNPCa.
Climatologia, solos e nutrição de plantas, manejo e tratos culturais, propagação vegetativa, genética e melhoramento, entomologia, fitopatologia, estatística experimental, economia rural, informática, difusão de tecnologia, informação, documentação e editoração, consultoria e assessoria técnica, participação em eventos, fontes de financiamento da pesquisa, contratos de cooperação técnica, unidades executoras da pesquisa.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Caju Pesquisa Brasil; Agricultura Pesquisa Relatório.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/425830

Milho sertanejo: variedade selecionada para a região Nordeste.
Provedor de dados: 14
Autores: CARVALHO, H. W. L. de; SANTOS, M. X. dos; GAMA, E. E. G. e; MAGNAVACA, R.
bitstream/item/81820/1/CPATC-COM.-TEC.-32-91.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Milho sertanejo; Brasil; Nordeste.; Melhoramento; Milho.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/358876

A cultura da banana no Brasil e proposições para o seu melhoramento.
Provedor de dados: 14
Autores: ALVES, E. J.
Relatam-se aspectos sobre a cultura da banana no Brasil, apresentando-se proposições e sugestões que objetivam a racionalização do seu cultivo, especialmente em áreas a serem implantadas.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Musa spp; Importância econômica; Exigência climática.; Banana; Comercialização; Industrialização.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/636355

Pesquisas com dendê na Embrapa: Estação Experimental do Rio Urubu: importância, situação atual e perspectivas.
Provedor de dados: 14
Autores: BARCELOS, E.
Importância. Coleção de germoplasma de dendê. Coleção de germoplasma de caiaué. Coleção de dendê em avançado estágio de melhoramento genético. Seleção dura. Seleção Tenera/Pisífera. Testes de progênies. Avaliação de clones do IRHO. Pesquisas na área de fitotecnia. Resumo das áreas experimentais na EERU. Situação atual. Perspectivas.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Dendê; Elaeis Guineensis; Pesquisa.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/666682

CULTIVAR de soja BR-37.
Provedor de dados: 14
Caracteristicas botanicas e agronomicas; Caracteristicas; Reacao a enfermidades; Resultados; Recomendacoes e informacoes.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Variedade; Soybeans; Cultivars.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/444331

Danos de Sternechus subsignatus (Boheman, 1836) (Col., curculionidae) na cultura da soja, em 1990/91.
Provedor de dados: 14
Autores: LORINI, I.; SALVADORI, J. R.; GASSEN, D. N.
bitstream/item/133906/1/ID11419-1990-1991sojaresultados-p101-104.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Inseto.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/823203

Avaliação de linhagens e de cultivares de soja. IV. Ensaios finais.
Provedor de dados: 14
Autores: BONATO, E. R.
bitstream/item/133927/1/ID43412-1990-1991sojaresultados-p55-59.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1029477

Efeito da rotação de culturas sobre a ocorrência de Sternechus subsignatus em soja.
Provedor de dados: 14
Autores: LORINI, I.; GASSEN, D. N.; SALVADORI, J. R.
bitstream/item/133900/1/ID11080-1990-1991sojaresultados-p109-110.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/822863

Produção e manejo de alevinos de pirarucu, Arapaima gigas (Cuvier).
Provedor de dados: 14
Autores: IMBIRIBA, E. P.
bitstream/item/40152/1/Circ-Tec-57-CPATU.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Instalação; Arapiama gigas; Brasil; Alevim; Production; Management; Feed; Installation; Pisciculture.; Alevino; Alimentação; Manejo; Pirarucu; Piscicultura; Produção; Reprodução.; Amazonia.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381278

Óleos essenciais e sua extração por arraste a vapor.
Provedor de dados: 14
Autores: KOKETSU, M.; GONÇALVES, S. L.
Processo de obtenção. Aspectos práticos. O processo de destilação. Principais plantas aromáticas cultivadas no Brasil. Plantas aromáticas nativas. Especiarias.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Óleo essencial; Extração; Planta aromática.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/415581

MILHO para silagem: tecnologias, sistemas e custo de produção.
Provedor de dados: 14
Meio cultural do milho forrageiro; Nutricao e adubacao do milho forrageiro; Pragas da cultura do milho forrageiro; Sistemas importantes para melhor qualidade da silagem de milho e maior eficiencia na sua utilizacao; Sistemas de ensilagem; Analise economica de ensilagem de milho.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Maize; Grass; Production system.; Custo de Produção; Milho; Silagem; Sistema de Produção; Tecnologia.; Corn; Technology.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/472008

Simulação de seca e seus efeitos na germinação de genótipos de sorgo.
Provedor de dados: 14
Autores: MAGALHAES, P. C.; OLIVEIRA, A. C. de.
bitstream/item/30632/1/Pesq.And.-5.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Simulation.; Germinação; Seca; Sorgo.; Sorghum Bicolor; Simulação; Germination.; Drought.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/478749

Manejo da criação de eqüinos na EMBRAPA, UEPAE da São Carlos (Fazenda Canchim).
Provedor de dados: 14
Autores: SILVA, A. E. D. F. da; MANZANO, A.; UNANIAN, M. M.; ROMANO, M. A.; MACHADO, D. C.
Apresentar alguns aspectos práticos de manejo da criação de eqüinos, destinados a auxiliar criadores e técnicos envolvidos nos sistemas atuais de produção.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Equine; Production.; Eqüino; Manejo; Pesquisa; Produção.; Research.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/42331

CAMPANHA da produtividade: recomendações técnicas para produtores de arroz, feijão, milho, soja e trigo.
Provedor de dados: 14
Zoneamento macroecológico; Recomendações básicas para o aumento da produtividade de grãos; Escolha de cultivares e qualidade de sementes; Recomendações para o cultivo do arroz.
Tipo: Recomendação Técnica (INFOTECA-E)
Palavras-chave: Agropecuária; Productivity; Tecchnology; Bean; Corn: Soybean.; Arroz; Feijão; Milho; Produtividade; Trigo; Tecnologia; Soja.; Agriculture; Rice; Wheat.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/87011

Controle de plantas daninhas na cultura da soja por herbicidas aplicados em pré-plantio incorporado.
Provedor de dados: 14
Autores: ROMAN, E. S.
bitstream/item/133982/1/ID43422-1990-1991sojaresultados-p123-129.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1029555

Insetos polinizadores potenciais do cajueiro no Nordeste da Bahia.
Provedor de dados: 14
Autores: BISPO, S. W. P.; COSTA, J. N.
A polinizacao ineficiente pela ausencia de agentes polinizadores pode ser um dos fatores responsaveis pela baixa produtividade do cajueiro. Visando conhecer a ecologia dos insetos polinizadores potenciais do cajueiro, na regiao Nordeste da Bahia, a Empresa de Pesquisa Agropecuaria da Bahia (EPABA) iniciou uma pesquisa na Fazenda CAJUBA, no municipio de Nova Soure, bahiam em 1989.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Cajueiro - insetos polinizadores - Brasil - Bahia.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/418583

Avaliação da resistência de plantas de soja a Sternechus subsignatus em 1990/91.
Provedor de dados: 14
Autores: LORINI, I.; SALVADORI, J. R.; GASSEN, D. N.
bitstream/item/133976/1/ID43418-1990-1991sojaresultados-p105-108.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1029545

Fatores de risco na maternidade associados a diarreia, mortalidade e baixo desempenho dos leitoes.
Provedor de dados: 14
Autores: MORES, N.; SOBESTIANSKY, J.; ZANELLA, J. R. C.; AMARAL, A. L. do; BARIONI JUNIOR, W.
bitstream/item/58750/1/CUsersPiazzonDocuments178.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Baixo desempenho.; Diarréia; Mortalidade.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/435910

Quebramento do colmo em milho.
Provedor de dados: 14
Autores: MAGALHAES, P. C.; MAGNAVACA, R.; OLIVEIRA, A. C. de.
bitstream/item/30639/1/Pesq.And.-7.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Quebramento; Acamamento; Maize.; Colmo; Milho; Zea Mays.; Lodging.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/478748

Anais...
Provedor de dados: 14
Autores: REUNIÃO NACIONAL DE PESQUISA DE ARROZ, 3., 1987, Goiânia.
O arroz no Brasil: situação atual e perspectivas; Controle integrado de pragas de arroz; Arroz híbrido; Cultura de tecidos; O arroz nos sistemas agricolas do cerrado; Competição de linhagens de arroz de sequeiro, para a região Centro e Norte do Mato Grosso do Sul; Levantamento de insetos em algumas variedades de arroz irrigado; Biotecnologia e melhoramento de plantas; Parâmetros morfofisiológicos do crescimento e desenvolvimento de três cultivares de arroz irrigado; Eficiência da seleção indireta, em população F2 de arroz de sequeiro, para solo de baixa fertilidade; Estabilidade da resistência à brusone, mancha-parda, escaldadura e mancha-estreita nas folhas em arroz; Melhoramento de arroz para várzeas úmidas no Brasil; Ocorrência e severidade de doenças...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Congresso; RENAPA.; Arroz; Oryza Sativa; Pesquisa.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/192382

CULTIVAR Cevada BR 2.
Provedor de dados: 14
bitstream/item/121179/1/FL-06299.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: BAG; Descrição.; Barley.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/849279

Perdas economicas decorrentes de diferentes graus de severidade e rinite atrofica em suinos.
Provedor de dados: 14
Autores: TALAMINI, D. J. D.; BRITO, J. R. F.; PIFFER, I. A.; BRITO, M. A. V. P. e.
bitstream/CNPSA/7661/1/cot169.pdf;  bitstream/item/58760/1/CUsersPiazzonDocuments169.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Perdas; Econômicas; Renite; Atrófica.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/435903

Doenças.
Provedor de dados: 14
Autores: PAIVA, F. de A.; GOULART, A. C. P.
bitstream/item/65215/1/29712.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Brasil; Mato Grosso do Sul.; Doença de Planta; Milho.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/254709

Dormência em sementes de Andropogon.
Provedor de dados: 14
Autores: ALLIPRANDINI, L. F.; BATISTA, L. A. R.; GODOY, R.
Medias de porcentagem de germinação e, índice de velocidade de emergência, nas diversas épocas de instalação de testes.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Sementes; Dormency.; Capim Andropogon; Dormência.; Seeds.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/42978

Avaliacao de variedades de mamona (Ricinus communis L.) na regiao dos cerrados do Distrito Federal.
Provedor de dados: 14
Autores: FONSECA, C. E. L. da.
bitstream/item/107097/1/pesq-54.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Cultivar; Distrito Federal; Brasil.; Cerrado; Mamona; Planta Oleaginosa; Ricinus Communis.; Brazil; Castor oil; Oil crops; Varieties.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549393

Avanço de geração de populações de soja para a tolerância à acidez do solo.
Provedor de dados: 14
Autores: BEN, J. R.; BONATO, E. R.
bitstream/item/133917/1/ID43408-1990-1991sojaresultados-p16.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1029467

Adubação verde e cobertura morta do solo em áreas irrigadas do Submédio São Francisco. III. Controle de nematóides das galhas.
Provedor de dados: 14
Autores: CHOUDHURY, M. M.; CHOUDHURY, E. N.
Diversas especies de leguminosas, como crotalarias, mucunas, feijao de corda, feijao guandu e outras, sao incorporadas ao solo como adubo verde, com a finalidade de enriquece-lo com materia organica e nitrogenio, trazendo diversas vantagens para os agricultores, principalmente pela melhoria das condicoes fisicas, quimicas e biologicas do solo. Alem disso, protegem o solo contra o impacto das gotas de chuva, aumenta a infiltracao, diminui o encharcamento e influem sobre o equilibrio de microorganismos, modificando a proporcao da flora e fauna e, consequentemente, reduzindo as doencas e pragas nas culturas. Resultados de varios trabalhos realizados, mostraram que algumas especies leguminosas, quando utilizadas como adubo verde, sao eficientes no controle de...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Javanica; Arenaria; Nordeste; Submédio São Francisco; Green manuring.; Adubação verde; Nematoide; Cobertura Morta; Meloidogyne Incognita.; Mulching.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131801

Custo médio de produção de suínos para abate: anexo 45 - setembro/91.
Provedor de dados: 14
Autores: GIROTTO, A. F.
bitstream/item/58746/1/CUsersPiazzonDocuments182.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Custos; Production; Costs.; Abate; Produção; Suíno.; Slaughter; Swine.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/433986

Variacao sazonal do carrapato em bovinos no Distrito Federal.
Provedor de dados: 14
Autores: SAUERESSIG, T. M.
bitstream/item/107103/1/pesq-56.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Distrito Federal; Brasil; Seazonal variation.; Boophilus Microplus; Bovino; Carrapato; Cerrado; Variação Sazonal.; Brazil; Cattle; Ticks.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549395

Corte da cauda em leitões: Estudo comparativo de dois métodos.
Provedor de dados: 14
Autores: DALLA COSTA, O. A.; SOBESTIANSKY, J.; BARIONI JUNIOR, W.; BONA, R.
bitstream/item/58755/1/CUsersPiazzonDocuments173.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Cauda; Leitões.; Corte.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/435982

Terminação de bovinos em confinamento. I. Uso de cana-de-açúcar (Saccharum officinarum cv. NA-5679), capim elefante (Pennisetum purpureum cv. Cameroon) e concentrado, na engorda de novilhos Nelore e mestiços.
Provedor de dados: 14
Autores: THIAGO, L. R. L. de S.; BEMBAHAM, A. B.; MIRANDA, R. G.; COSTA, F. P.; EUCLIDES, V. P. B.; CARVALHO, J. de.
bitstream/item/138779/1/COT-39.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Bovino de corte; Nelore; Cameroom; Cana-de-açúcar; Ganho; Aspecto econômico; Sugar cane; Feeding; Intake; Costs; Economic situation.; Alimentação; Capim Elefante; Confinamento; Consumo; Custo; Novilho; Peso; Pennisetum Purpureum; Saccharum Officinarum.; Nellore; Beef cattle; Feedlots; Steers; Weight gain.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/321270

Introdução e avaliação de forrageiras na Ilha de Marajó - Pará.
Provedor de dados: 14
Autores: TEIXEIRA NETO, J. F.; SOUZA FILHO, A. P. da S.; MARQUES, J. R. F.; CAMARAO, A. P.; TEIXEIRA, R. N. G.
bitstream/item/32055/1/CPATU-BP122.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Teor; Avaliacao; Ilha de Marajo; Pará; Brasil; Forage crop; Analysis; Production; Dry matther; Pasture; Valuation.; Análise; Cálcio; Fósforo; Matéria Seca; Pastagem; Planta Forrageira; Produção.; Amazonia; Calcium; Phosphorus.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381264

Helmintose: sinal de prejuizo para o rebanho.
Provedor de dados: 14
Autores: OLIVEIRA, G. P. de; MATSUMOTO, T.
Algumas dicas de como o verme da helmintose manifesta-se em condições que podem ou não serem favoráveis.
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Bovinos; Larvas.; Verminose.; Bovidae.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/43851

CPAA - área técnica, situação presente e desejada.
Provedor de dados: 14
Autores: GALVÃO, A. P. M.
Programas Nacionais de Pesquisa (PNPs). PNP-Seringueira. PNP-Dendê. Segmento pesquisa guaraná. PNP-Agroflorestal. Outros PNPs não coordenados pelo CPAA. A organização da atividade de pesquisa do CPAA. O atual sistema. A nova estrutura visualizada. Novas áreas técnicas. Conservação de recursos naturais. Recuperação de áreas degradadas. Tecnologias para produtores de abastecimento e exportação. Desenvolvimento de sistemas agroflorestais. Difusão de tecnologia. Estruturação/responsabilidade das ATs. Um novo enfoque para projetos-projetos sistêmicos. Capacidade técnica do CPAA para desempenhar sua missão. Recursos humanos. Recursos materiais e financeiros. Fixação de pesquisadores no CPAA. Cooperação internacional. Proposta para reformulação do Programa de...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Manaus; Agricultura; Pecuária; Pesquisa.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/674854

Analise proximal e valores energeticos de alguns alimentos para suinos.
Provedor de dados: 14
Autores: FIALHO, E. T.; BARBOSA, H. P.; ABREU, J. L. M.
bitstream/item/58753/1/CUsersPiazzonDocuments175.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Valores; Energético; Suínos; Alimentos.; Análise.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/435942

Uso de ivermectin na prevencao de miiases umbilicais em bezerros de corte criados extensivamente.
Provedor de dados: 14
Autores: BIANCHIN, I.; CORREA, E. S.; GOMES, A.; HONER, M. R.; CURVO, J. B. E.
bitstream/item/138822/1/COT-41.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Bovino de corte; Controle; Beef calves.; Miiase; Sanidade Animal.; Disease prevention; Ivermectin; Myiasis.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/319606

Ecologia vegetal: um enfoque para o Trópico Úmido.
Provedor de dados: 14
Autores: MEDRADO, M. J. S.
Biologia reprodutiva; polinização; iniciação floral e antese; fenologia e regularidade de floração; vetores de pólen; atrativos para polinizadores; sistema de cruzamento; produção de sementes, perda voluntária de frutos e dispersão; ciclagem de nutrientes; consequência do desmatamento; riscos e ocorrências de desertificação e ações para minimizar os efeitos sobre o clima dos trópicos; agentes de distúrbios, estabilidade dos ecossistemas, sucessão nas regiões tropicais e temperadas, composição florística dos estágios de sucessão; ecodesenvolvimento; proposições de pesquisa.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Trópico Úmido; Ecologia Vegetal; Plant ecology; Humid tropics.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/698078

Recuperacao de gramineas apos a queima.
Provedor de dados: 14
Autores: RAMOS, G. M.
O uso do fogo, na agricultura, e um assunto dos mais controvertidos. No Piaui, a queima das pastagens e feita com a finalidade de diminuir a populacao de animais peconhentos e carrapatos, eliminar o excesso de material morto, e estimular rebrotacoes nova das pastagens. Entretanto, e comum a queima de pastagens cultivadas e sua ocorencia se da principalmente atraves das "faiscas" provenientes das queimadas de pastagens nativas e das rocas. Para avaliar o efeito da queima, coletaram-sedados de cobertura do solo e producao de quatro gramineas forrageiras:capim braquiaria, capim quicuio da Amazonia, capim andropogon e capim gordura, cultivadas em um solo sob vegetacao de cerrados, em Regeneracao (PI), queimadas acidentalmente em 01.10.86. Pelosresultados...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Planta graminea forrageira; Queima; Piaui.; Pastagem.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/53574

Sarna sarcóptica dos suínos: estratégia de ação no controle e avaliação econômica.
Provedor de dados: 14
Autores: SOBESTIANSKY, J.; GIROTTO, A. F.; LIGNON, G. B.; FACCINI, J. L. H.; MEZACASA, M. L.
bitstream/item/58756/1/CUsersPiazzonDocuments172.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Doença; Sarna Sarcoptica; Suíno.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/435902

Armazenamento de sementes de mangostão.
Provedor de dados: 14
Autores: MULLER, C. H.; FIGUEIREDO, F. J. C.; MULLER, N. R. M.
bitstream/item/34019/1/CPATU-CirTec58.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Mangosteen; Seed; Emergency; Conservation.; Armazenamento; Conservação; Emergência; Garcinia Mangostana; Mangostão; Semente; Umidade.; Humidity; Storage.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/379311

Estudo da biologia reprodutiva de duas especies florestais (Aroeira e Goncalo-Alves) da regiao do cerrado.
Provedor de dados: 14
Autores: ALLEM, A. C.
bitstream/item/90713/1/1712-Estudo-da-biologia.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Graveolens.; Aroeira; Biologia; Cerrado; Floresta.; Astronium.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/168062

Delineamento macro-agroecológico do Brasil.
Provedor de dados: 14
Autores: HIRANO, C.; AMARAL, F. C. S. do; PALMIERI, F.; LARACH, J. O. I.; SOUSA NETO, N. C. de.
O trabalho objetiva dar uma visão global da distribuição espacial das zonas macro-agroecológicas identificadas e sua vocação agroecológica. As fontes de informações foram os trabalhos da EMBRAPA-SNLCS, mapa de solos do Brasil escala 1:5.000.000, levantamentos de solos a nível estadual e regional e experiência dos pesquisadores envolvidos. Outros dados foram obtidos por consulta bibliográfica. As zonas macro-agroecológicas foram identificadas pela conjugação dos dados de vegetação natural, clima, solos, relevo, textura, drenagem e fertilidade natural, levando ao reconhecimento de 55 zonas, agrupadas em 18 classes de aptidão agroecológica. Os resultados são apresentados num mapa escala 1:5.000.000 e num texto explicativo. A pequena escala do mapa é...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Zoneamento agroecológico; Aptidão Agrícola; Zoneamento Agrícola; Zoneamento Ecológico.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/327960

Análise comparativa de custo de exploração florestal mecanizada em terra firme.
Provedor de dados: 14
Autores: COSTA FILHO, P. P.; FERREIRA, C. A. P.
bitstream/item/34044/1/CPATU-CirTec63.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Terra firme; Campo experimental de Curua-Una; Floresta Nacional do Tapajós; Companhia Florestal Monte Dourado; Pará; Amapá; Brasil; Forest exploitation; Cost; Production; Non flooded land.; Custo; Exploração Florestal; Floresta; Mecanização; Produção.; Amazonia; Mechanization.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381201

Nutrientes limitantes ao estabelecimento e produção de Brachiaria humidicola consorciada com leguminosas em tesos da Ilha de Marajó.
Provedor de dados: 14
Autores: TEIXEIRA NETO, J. F.; SOUZA FILHO, A. P. da S.; DUTRA, S.; MARQUES, J. R. F.
Uma pastagem de Brachiaria humidicola consorciada com leguminosas foi estabelecida em uma área de "tesos" da fazenda Curral do Meio, localizada no município de Ponta de Pedras na ilha de Marajó (PA), objetivando avaliar o efeito da omissão de nutrientes sobre o estabelecimento e rendimento das plantas. O solo e um Plintossolo ácido e de baixa fertilidade natural. O clima, segundo Koppen, e Amitropical chuvoso, com precipitação pluviométrica anual media de 2.500 mm, temperatura media de 27C e umidade relativa em torno dos 85%. Utilizou-se o delineamento experimental inteiramente ao acaso com dez tratamentos e três repetições. Periodicamente, eram realizados cortes com vistas a determinação da produção de matéria seca. Os resultados obtidos indicam baixo...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Consorciacao; Ilha de Marajo; Pará; Brasil; Production; Fertilizer; Dry matter.; Adubação; Brachiaria Humidicola; Capim Quicuio; Forragem; Matéria Seca; Leguminosa; Legume; Produção.; Amazonia; Forage; Intercropping.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/379774

Comportamento do sistema radicular de fruteiras cultivadas em áreas irrigadas do Submédio São Francisco.
Provedor de dados: 14
Autores: CHOUDHURY, E. N.; SOARES, J. M.; NASCIMENTO, T.
bitstream/item/45431/1/PA-63-1991.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Nordeste; Submedio Sao Francisco; Root; Northeast; Sao Francisco Sub-Middle; Fruit.; Fruticultura; Irrigação; Fruta; Raiz.; Fruits; Irrigation.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131782

Mal do casco.
Provedor de dados: 14
Autores: VIEIRA, L. da S.; SANTOS, I. M. dos; VASCONCELOS, H. E. M.
O mal do casco e uma doenca cujo sintoma principal e uma inchacao na ligacao pele-casco do animal doente.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Mal do casco; Foot rot.; Caprino; Doença animal; Casco; Carbúnculo sintomático; Doença dos pés; Goats; Foot diseases.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/514298

Recuperação do sorgo apos um período de déficit hídrico.
Provedor de dados: 14
Autores: MAGALHAES, P. C.; PAIVA, E.; ALBUQUERQUE, P. E. P.
bitstream/item/30782/1/Pesq.And.-6.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Deficit hidrico; Hydric deficit; Recuperacao; Recuperation.; Sorghum Bicolor; Sorgo.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/471800

Boletim agrometeorológico do Centro Nacional de Pesquisa de Suínos e Aves - 1989.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Suínos e Aves (Concórdia, SC).
bitstream/item/67980/1/DMeu-DiscoCNPSA-BOL.-AGRO.-1-88CNPSA-BOL.-AGRO.-1-88.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Agrometeorologia.; Agrometeorology.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/434311

Avaliacão de linhagens e de cultivares de soja. V. Rendimento de grãos das cultivares recomendadas.
Provedor de dados: 14
Autores: BONATO, E. R.
bitstream/item/133928/1/ID43413-1990-1991sojaresultados-p60-63.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1029480

Triticale na alimentaçao de suínos.
Provedor de dados: 14
Autores: FERREIRA, A. S.; LIMA, G. J. M. M. de; ZANOTTO, D. L.; GOMES, M. F. M.
bitstream/CNPSA/7625/1/cot165.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Suínos.; Alimentação; Triticale.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/435856

Artrite encefalite caprina viral - CAEV.
Provedor de dados: 14
Autores: PINHEIRO, R. R.; EGITO, A. S. do; SANTA ROSA, J.
CTI esclarece suas dúvidas referentes a alimentação, manejo, tratamento e prevenção de doenças, enfim, dúvidas encontradas no dia-a-dia de seu criatório.
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Artrite encefalite caprina; CAE; CAEV; Caprine arthritis encephalit virus.; Caprino; Doença animal; Vírus; Artrite; Goats; Animal diseases; Lentivirus.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/514140

Gramíneas do gênero Brachiaria com fontes de resistência a cigarrinha-das-pastagens.
Provedor de dados: 14
Autores: SILVA, A. de B.; CRUZ, E. D.
bitstream/item/60199/1/CPATU-PA150.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Resistência a praga; Feed grasses.; Brachiaria; Gramínea Forrageira; Melhoramento.; Pest resistance; Plant breeding.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374126

Resultados de pesquisa com soja - safra 1988/89.
Provedor de dados: 14
Autores: EMBRAPA. Unidade de Execução de Pesquisa de Âmbito Estadual de Dourados.
bitstream/item/65905/1/CPAO-DOC.-46-91.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Pesquisa; Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/255197

Análise do ambiente interno - versão preliminar.
Provedor de dados: 14
Autores: MENEZES, E. A.; CHOUDHURY, E. N.; SOARES, D.; SOARES, J. M.; SILVA, J. M.; LOPES, L. H. de O.; LOPES, P. R. C.
A análise do ambiente interno deverá gerar subsidios para uma reflexão sobre o desenvolvimento global do CPATSA. No passado no presente, bem como seus aspectos organizacionais funcionais para atingir os objetivos propostos para o futuro.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: CPATSA; Ambiente interno; Desempenho; Memória técnica do CPATSA; Análise; Produção.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/155369

Resposta a adubação fosfatada e a suplementação mineral de bovinos de corte sob pastejo em Brachiaria decumbens.
Provedor de dados: 14
Autores: SCHUNKE, R. M.; VIEIRA, J. M.; SOUSA, J. C. de; GOMES, R. F. C.; COSTA, F. P.
Comparou-se biológica e economicamente, os efeitos da fertilização fosfatada e da suplementação mineral. sobre o desempenho de bovinos machos da raça Nelore. A forrageira utilizada foi Brachiaria decumbens cv. Basilisk, implantada em um solo Areia Quartzosa distrófica, de baixa fertilidade natural, no município de Sidrolândia, MS. Testou-se o fósforo em dois níveis de adubação (0 e 100 kg de P2O5/ha) sendo 1/3 de superfosfato simples e 2/3 de fosfato de Araxá e dois níveis de suplementação mineral (0 e 500 ppm de P no cocho) na forma de fosfato bicálcico.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Bovino de corte; Suplementação mineral; Desempenho animal; Nelore; Basilisk; Sidrolândia; Mato Grosso do Sul; Brasil.; Brachiaria Decumbens; Gramínea Forrageira; Nutrição Animal.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/320675

Aroeira: caracteristicas e aspectos silviculturais.
Provedor de dados: 14
Autores: MELO, J. T. de.
bitstream/item/101472/1/doc-38.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Brasil; Centro de Pesquisa Agropecuária dos Cerrados; Planaltina-DF; Savannah.; Astronium Urundeuva; Aroeira; Cerrado; Madeira; Silvicultura.; Silviculture; Wood.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/547912

Insetos e ácaros pragas associados a cultura da mandioca no Brasil e meios de controle.
Provedor de dados: 14
Autores: FARIAS, A. R. N.
Inúmeros são os fatores que influenciam na produção da mandioca e, entre eles, as pragas podem acarretar grandes reduções. A planta e atacada por um grande número de artropodos, alguns dos quais causam danos econômicos consideráveis. Em função das características sócio-econômicas da cultura e seu período vegetativo longo, a aplicação continua de inseticidas para controlar as pragas torna-se bastante onerosa, razão pela qual o controle químico e uma pratica que raramente se justifica economicamente. E importante conhecer tanto as pragas principais como as de menor importância, o que varia de região para região, de modo que se possa estabelecer uma estratégia de controle adequada.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Mandioca.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/637442

Utilização de ácido oxálico no processamento de óleos vegetais.
Provedor de dados: 14
Autores: HARTMAN, L.; LAGO, R. C. A.; JABLONKA, F. H.
bitstream/item/65451/1/CTAA-DOCUMENTOS-18-UTILIZACAO-DE-ACIDO-OXALICO-NO-PROCESSAMENTO-DE-OLEOS-VEGETAIS-FL-02117.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Degomagem; Branqueamento.; Abacate; Clorofila; Dendê; Óleo Vegetal; Processamento; Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/415659

Projeto de apoio à pesquisa e à produção de sementes de dendê, no Distrito Agropecuário da SUFRAMA: "plano de aplicação".
Provedor de dados: 14
Autores: EMBRAPA. Centro de Pesquisa Agroflorestal da Amazônia Ocidental.
Identificação. Resumo do projeto. Antecedentes e justificativas. Objetivos. Metas. Atividades a serem desenvolvidas. Necessidade de recursos por atividade e suas origens. Cronograma de execução das atividades. Cronograma de liberação de recursos pela SUFRAMA. Orçamento dos custos de manutenção de 388 hectares de plantios experimentais. Estimativa de custos de análises de cachos e cruzamentos para produção de sementes. Estimativa de custos para funcionamento do laboratório. Equipamentos, mobiliários e serviços de terceiros, necessários ao laboratório de produção de sementes de dendê.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Rio Urubu; Relatório; Brasil; Amazonas.; Dendê; Pesquisa; Semente.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/674677

Resultados de pesquisa com feijão de 1988 a 1990.
Provedor de dados: 14
Autores: EMBRAPA. Unidade de Execução de Pesquisa de Âmbito Estadual de Dourados.
Condições climáticas durante o ciclo da cultura do feijão, em Dourados, MS, safras 1988, 1989 e 1990. Projeto 002.86.057-5 - Introdução e avaliação de germoplasma de feijão para cultivo irrigado; Projeto 002.89.018-4 - Introdução e avaliação de genótipos de feijão (Phaseolus vulgaris L.) na região de Dourados, Mato Grosso do Sul.; Projeto 002.88.007-8 - Estudos sobre o mosaico dourado do feijoeiro no Mato Grosso do Sul.; Pesquisa não vinculada a projeto.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Resultado; Mato Grosso do Sul.; Feijão; Phaseolus Vulgaris.; Pesquisa.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/899603

Controle biológico de insetos-pragas do arroz no Brasil.
Provedor de dados: 14
Autores: MARTINS, J. F. da S.; MAGALHÃES, B. P.
bitstream/item/26115/1/doc-25.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Arroz; Controle Biológico; Inseto; Oryza Sativa; Praga.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/197831

Efeito do intervalo entre cortes na produção de forragem e proteína bruta do capim-buffel biloela.
Provedor de dados: 14
Autores: ARAGAO, W. M.; ALMEIDA, S. A.
bitstream/item/81797/1/CPATC-COM.-TEC.-30-91.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Capim Buffel; Forragem; Produção Agrícola; Proteína Bruta; Valor Nutritivo.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/358877

A Importância de não queimar a palha na cultura de cana-de-açúcar.
Provedor de dados: 14
Autores: URQUIAGA, S.; BODDEY, R. M.; OLIVEIRA, O. C.; LIMA, E.; GUIMARÃES, D. H. V.
Produtividade de colmos. Perda de nutrientes com a queima da palha. Cobertura do solo pela. Teor de nutrientes no solo. Cálculo comparativo dos custos na colheita e no uso de herbicidas nos sistemas de corte de cana crua e queimada. Salário de cortador de cana autonomo (fev./91). Normas salariais para corte de cana (acordo sindicato). Produtividade média de cana na Usina Cruangi. Salário mínimo. Custos do corte. Custo de herbicidas. Balanço de custos adicionais.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Cana de Açúcar; Cobertura do Solo; Colmo; Palha; Queimada; Valor Nutritivo.; Solo; Sugarcane.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/623354

Sistemas agroflorestais em Rondonia: uma opcao interessante.
Provedor de dados: 14
Autores: LOCATELLI, M.
bitstream/item/55539/1/FD-076-0001.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Sistema agroflorestal; Brasil; Rondonia.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/702306

Curral para bovinos de corte "modulo 500".
Provedor de dados: 14
Autores: NUNES, S. G.; MARTINS, C. S.
Construção do curral. Localização. Dimensionamento. Preparo do terreno. Marcação do curral. Recomendações especiais. Principais componentes. Cercas e porteiras. Galpão. Seringa. Brete. Tronco de contenção. Apartadouro. Embarcadouro. Estimativa de custo. Especificação dos componentes. Relação de materiais por componentes. Relação de material por categoria.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Aspecto econômico; Stables; Economic situation; Costs.; Bovino; Custo.; Construção Rural; Curral; Animal housing; Cattle.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/319846

Comportamento de potros.
Provedor de dados: 14
Autores: UNANIAN, M. M.
bitstream/item/120270/1/digitalizar0002.pdf
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Potros; Comportamento; Recém-nascidos.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/42552

Avaliação de linhagens e de cultivares de soja. III. Ensaios intermediários.
Provedor de dados: 14
Autores: BONATO, E. R.
bitstream/item/133924/1/ID43411-1990-1991sojaresultados-p49-54.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1029476

Oxidação em explantes de cajueiro cultivados in vitro.
Provedor de dados: 14
Autores: DINIZ, J. D. N.; ARAGAO, R. G. M.; GONDIM, M. T. P.; OLIVEIRA, S. B. de.
A multiplicação do cajueiro tem sido feita, principalmente, por sementes resultando em plantios desuniformes e de baixa produtividade, com castanhas e pseudo-frutos variáveis quanto aos aspectos morfológicos. A micropropagação poderá ser um dos métodos de multiplicação vegetativa capaz de assegurar plantios comerciais mais uniformes e com maior produtividade. No entanto, ainda não se dispõe de uma metodologia que determine o desenvolvimento dos tecidos in vitro, uma vez que problemas como a oxidação dos explantes e a contaminação do material originado de campo, são fatores limitantes a utilização dessa técnica.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Cajueiro - cultivo "in vitro" - explante - oxidacao; Cajueiro - multiplicacao; Caju - micropropagacao.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/418582

Diretório Nacional de pesquisadores de trigo.
Provedor de dados: 14
Autores: VASCONCELOS, E. de L.; SOUZA, M. I. F.
Tecnicos; Indice de autor; Indice por area de atuacao; Indice geografico.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Diretorio.; Pesquisador; Trigo.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/255195

Efeito de inseticidas sobre larvas e adultos de Sternechus subsignatua Boheman, 1836, na cultura da soja.
Provedor de dados: 14
Autores: LORINI, I.; SALVADORI, J. R.; GASSEN, D. N.
bitstream/item/133977/1/ID43419-1990-1991sojaresultados-p111-114.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1029547

O anel vermelho do dendezeiro e do coqueiro.
Provedor de dados: 14
Autores: SILVA, H. M. e.
bitstream/item/58721/1/CPATU-Doc60.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Controle; Rhinchophorus palmarum; Oil palm; Coconut; Disease; Red-ring; Control; Nematode; Beetle.; Anel Vermelho; Besouro; Coco; Dendê; Doença; Nematóide.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381198

Cultivar: Trigo BR 43.
Provedor de dados: 14
Autores: EMBRAPA-CNPT.
bitstream/item/121166/1/FL-06288.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Descrição.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/849268

Retencao de placenta em bovinos.
Provedor de dados: 14
Autores: SA, W. F. de.
bitstream/item/143004/1/2041.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Bovinos; Retencao.; Placenta.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/587653

Indução a mutação em pimenta-do-reino para resistência a fusariose, através da irradiação de sementes.
Provedor de dados: 14
Autores: POLTRONIERI, M. C.; ANDO, A.; LEMOS, O. F.; KATO, O. R.; POLTRONIERI, L. S.
bitstream/item/61700/1/Belem-PA16.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Pimenta-do-reino.; Doença.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/878788

Manejo e conservação de solos.
Provedor de dados: 14
Autores: HERNANI, L. C.
bitstream/item/65212/1/29634.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Brasil; Mato Grosso do Sul.; Conservação do Solo; Manejo do Solo; Milho.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/252891

Controle biológico de ortézia na cultura de citros.
Provedor de dados: 14
Autores: SA, L. A. N. de.
bitstream/item/160095/1/1991FL001-Sa-Controle-2757.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Ortezia; Piolho branco; Danos; Conidios; Fungo vermelho; Fusarium sp; C; Gloeosporioides.; Cochonilha; Controle Biológico; Óleo Mineral.; Citrus.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/12132

Seleção de leguminosas para cultivo "alley-cropping" sob condições de Latossolo Amarelo em Porto Velho Rondônia - Brasil.
Provedor de dados: 14
Autores: LOCATELLI, M.; PALM, C. A.; SMYTH, T. J.; RICCI, M. dos S. F.
bitstream/item/56052/1/PAid1640-0001.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Cultivo; Brasil; Rondonia; Porto Velho.; Leguminosa; Leguminosae; Seleção.; Brazil; Alley cropping.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/698624

Utilização da aveia desaristada para suínos em crescimento e terminação.
Provedor de dados: 14
Autores: FIALHO, E. T.; BARBOSA, H. P.; SOUZA, J. M. de; ABREU, J. L. M.
bitstream/item/58766/1/CUsersPiazzonDocuments167.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Feeding; Oat; Growing.; Alimentação; Aveia; Crescimento; Terminação.; Suíno; Finishing; Swine.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/433911

Relatório técnico.
Provedor de dados: 14
Autores: REUNIÃO DA COMISSÃO TÉCNICA REGIONAL DE FEIJÃO - REGIÃO III, 5.,  1991, Natal.
Descrição das atividades desenvolvidas e os comentários e as decisões tomadas durante a reunião. Cultivares recomendadas para a Região III - Feijão - Safra 1991/92. Lista de linhagens promissoras.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Região Norte; Região Nordeste; Competição de Variedade; Feijão; Produtividade; Phaseolus Vulgaris; Melhoramento Genético Vegetal; Kidney beans; Progeny; Variety trials; Yields.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1110424

Diretrizes para a recuperação da cajucultura do Nordeste.
Provedor de dados: 14
Autores: PARENTE, J. I. G.; PAULA PESSOA, P. F. A.; NAMEKATA, Y.
Alternativas de manejo, custos de producao das alternativas de manejo, diretrizes para a cajucultura, conclusoes e sugestoes, bibliografia.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Brasil; Nordeste; Caju historia; Caju manejo; Caju cultura diretrizes; Caju custos de producao.; Caju; Economia.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/420248

Colheita e armazenamento.
Provedor de dados: 14
Autores: PASCHOALICK, H. N. dos S.
bitstream/item/65217/1/paschoalick.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Milho.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/932570

Doenças do trigo em Mato Grosso do Sul.
Provedor de dados: 14
Autores: GOULART, A. C. P.
Doeças mais importantes: helintosporiose, ferrugem da folha, Ferrugem do colmo; Brusone; Oídio; Giberela; Bacteriose; Ciclos das doenças; sintomas e medidas gerais de controle.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Brasil; Mato Grosso do Sul.; Doença; Trigo.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/255163

SISTEMAS de producao para cebola: Santa Catarina (2a. revisao).
Provedor de dados: 14
A cultura da cebola tem um contexto social e economico fundamental no Estado de Santa Catatina. A necessidade de se levar ao produtor novas tecnologias e uma constante na EMPASC.
Tipo: Sistema de Produção (INFOTECA-E)
Palavras-chave: Brasil; Santa Catarina; Brazil.; Cebola; Sistema de Produção.; Farming systems; Onions.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/905843

Recomendações para o cultivo de espécies perenes em sistemas consorciados.
Provedor de dados: 14
Autores: NOGUEIRA, O. L.; CONTO, A. J. de; CALZAVARA, B. B. G.; TEIXEIRA, L. B.; KATO, O. R.; OLIVEIRA, R. F. de.
bitstream/item/58714/1/CPATU-Doc56.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Cultura perene; Consorciação; Pimenta-do-reino; Urucu; Citros; Trópico úmido; Plant; Perenial crop; Rubber-tree; Cocoa; Black papper; Anatto; Maracock; Humid tropic.; Açaí; Cacau; Bactris Gasipaes; Bixa Orellana; Cupuaçu; Euterpe Oleracea; Maracujá; Passiflora Edulis; Planta; Seringueira; Pupunha; Theobroma Grandiflorum.; Citrus; Intercropping.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/386575

Adubação verde e cobertura morta em áreas irrigadas do Submédio São Francisco: I. Comportamento das espécies.
Provedor de dados: 14
Autores: CHOUDHURY, E. N.; FARIA, C. M. B. de; LOPES, P. R. C.; CHOUDHURY, M. M.
Para estabelecer-se a adubacao verde, e fundamental a escolha de especies bem adaptadas as condicoes edafoclimaticas da regiao. Neste trabalho, constam dados de fenologia, biomassa, doencas, pragas e numero de capinas necessarias em especie com potencial para adubacao verde e cobertura morda nas areas irrigadas do submedio Sao Francisco. Das especies avaliadas, as mais promissoras sao a mucuna preta, mucuna ana e crotalarias (Crotalaria juncea e Crotalaria spectabilis) por apresentarem alta produtividade de materia seca, precocidade fenologica e nao favorecerem a incidencia de pragas e doencas. A anileira e o guandu, embora tenham apresentado produtividades altas de biomassa, apresentam ciclos fenologicos longos e o incoveniente de possuirem ramos grossos...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Comportamento; Nordeste; Submédio São Francisco; Species; Northeast; Green manure.; Adubação verde; Cobertura Morta; Espécie.; Mulching.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131768

Citricultura no México, com especial referencia a produção da lima ácida Galego, Citrus aurantifolia, Swingle.
Provedor de dados: 14
Autores: PASSOS, O. S.
Localizado na América do Norte, ao lado dos Estados Unidos e Canada, entre 11 e 32 latitude Norte (a altura do tropico de Câncer) e 87 a 115 Longitude Oeste, o México possui 1.972.255 km. Limita-se ao Norte com os Estados Unidos, ao sul oeste com o Oceano Pacifico, a Leste com o Oceano Atlântico (Golfo do México) e sudeste com a Guatemala e Belize. O clima e predominante, tropical quente e chuvoso, com exceção nas regiões montanhosas, onde o clima e temperado. À medida que se aproxima a medida do norte, o clima vai de tornando subtropical ou temperado quente de tipo árido, típicos dos desertos de Sonora e da Baixa Califórnia. Embora o regime pluviométrico, em termos gerais, não seja suficiente pata agricultura, as chuvas ocorrem no período de verão.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Citrus; Mexico.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/637988

Guia prático: utilização de inoculante na cultura do feijão.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Arroz e Feijão.
O que e inoculante?; Como inocular?; Como saber se a inoculação funcionou?; E possível usar pesticidas juntamente com o inoculante; Recomendações importantes.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Transferencia.; Bactéria; Feijão; Inoculante; Nódulo; Nitrogênio; Phaseolus Vulgaris.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/192397

Erradicacao de micoplasmas - A experiencia da EMBRAPA.
Provedor de dados: 14
Autores: FIORENTIN, L.; NASCIMENTO, E. R. do; BALEN, L.; NASCIMENTO, M. da G. F. do; AVILA, V. S. de; SCHMIDT, G. S.
bitstream/item/67959/1/CUsersPiazzonDocumentsNova-pastaMeu-DiscoCNPSA-CIR.-TEC.-15-92CNPSA-CIR.-TEC.-15-92.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Erradicação micoplasma.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/436042

Relatório...
Provedor de dados: 14
Autores: SEMINÁRIO SOBRE A PEQUENA PRODUÇÃO NA REGIÃO SEMI-ÁRIDA, 1991, Petrolina.
A situação da pequena produção no Nordeste Semi-Árido e o desafio para o seu desenvolvimento; Relação da pesquisa com a sociedade e as relações institucionais com parceiros; Linhas e temas de pesquisa prioritárias para o desenvolvimento da pequena produção.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Pequena produção; Desenvolvimento; Extensa~; Memória técnica do CPATSA.; Pesquisa; Agricultura; Pecuária.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/162666

Avaliação de linhagens e de cultivares de soja. II. Ensaios preliminares de segundo ano.
Provedor de dados: 14
Autores: BONATO, E. R.
bitstream/item/133923/1/ID43410-1990-1991sojaresultados-p23-48.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1029474

Análise econômica da utilização do triguilho para suínos.
Provedor de dados: 14
Autores: GOMES, M. F. M.; BARBOSA, H. P.; FIALHO, E. T.; FERREIRA, A. S.; LIMA, G. J. M. M. de.
bitstream/item/58749/1/CUsersPiazzonDocuments179.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Nutrição; Suíno.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/435859

Conservação de sementes de algodão sob condições tropicais úmidas.
Provedor de dados: 14
Autores: OHASHI, O. N. B.; CARVALHO, J. E. U. de; CORRÊA, J. R. V.; FIGUEIREDO, F. J. C.
bitstream/item/32027/1/CPATU-BP117.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Armazenagem; Acala del cerro; Santarem Novo; Capanema; Belem; Pará; Brasil; Seed; Conservation; Variety.; Algodão; Conservação; Gossypium Hirsutum; Germinação; Semente; Variedade.; Teor de Umidade; Amazonia; Germination; Cotton; Humidity; Storage.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381261

Avaliação da eficiência de inseticidas no controle da lagarta da soja (Anticarsia gemmatalis Huebner, 1818) na cultura da soja.
Provedor de dados: 14
Autores: LORINI, I.; SALVADORI, J. R.; GASSEN, D. N.
bitstream/item/133980/1/ID43421-1990-1991sojaresultados-p119-122.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1029553

Comportamento de cultivares de pimenta-do-reino, em área de ocorrência de fusariose no Estado do Pará.
Provedor de dados: 14
Autores: ALBUQUERQUE, F. C. de; DUARTE, M. de L. R.
bitstream/item/58478/1/CPATU-DOC-59-.pdf;  bitstream/item/98149/1/139.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Pimenta-do-reino; Desenvolvimento vegetativo; Cultivar guajarina; Cultivar bragantina; Cultivar cingapura; Fusarium solane; Belém; Castanhal; Capitão Poço; Tomé-Açu; Pará; Brasil; Black papper; Vegetative development; Variety.; Fusariose; Piper Nigrum.; Amazonia.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/382736

Cultivar de soja BR-29.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Soja (Londrina, PR).
Caracteristicas botanicas e agronomicas; Caracteristicas; Reacao a enfermidades; Resultados; Recomendacoes e informacoes.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Variedade; Soybeans; Cultivars; Brazil.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/444328

Novas incidências de insetos em cajueiro no Nordeste do Brasil.
Provedor de dados: 14
Autores: MESQUITA, A. L. M.; MELO, Q. M. S.
Com o objetivo de se conhecer a importância e distribuição geográfica das pragas do cajueiro, constatou-se que além da ocorrência de insetos e ácaros, já conhecidos para algumas regiões, outras espécies, ainda não citadas como pragas, usam esta anacardiácea como planta hospedeira.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Cajueiro - Insetos - Brasil - Nordeste.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/425721

Leucaena leucocephala (Lan) de wit: cultura e melhoramento.
Provedor de dados: 14
Autores: FREITAS, A. R. de; OLIVEIRA, A. L. P. C. de; SILVA, B. A. da; DECICO, M. J. U.
O objetivo do presente trabalho e apresentar aspectos relativos a leucena, tais como, biologia da planta, caracteristicas agronomicas, bem como a possibilidade de sua inclusao em programas de melhoramento, tendo em vista a sua ampla utilizacao como especie melhorada.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Leucaena leucocephala - cultura; Leucaena leucocephala - melhoramento.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/45860

Validação do modelo de simulação soygro-soja - Passo Fundo, RS.
Provedor de dados: 14
Autores: SIQUEIRA, O. J. F. de; BERG, M. van den.
bitstream/item/133899/1/ID12563-1990-1991sojaresultados-p139-144.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Soybean; Modelagem.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/824347

O cultivo do gergelim no sertão do São Francisco.
Provedor de dados: 14
Autores: CAVALCANTI, J.
Trata sobre o cultivo do gergelim: solo e clima, epoca de plantio, cultivares, espacamento, semeadura, desbaste, capinas, pragas e doencas, colheita e beneficiamento.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Cultivo; Sesamun indicum; Nordeste; Sertão; Vale do São Francisco; Cultivation; Northeast; Sesame.; Gergelim.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131702

Eficiência na reprodução.
Provedor de dados: 14
Autores: UNANIAN, M. M.
bitstream/item/224798/1/EficienciaReproducao.pdf
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Equino; Cavalo árabe; Reprodução.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/42429

Caracterização e avaliação do germoplasma clonal de guaraná (Paullinia cupana var. sorbilis).
Provedor de dados: 14
Autores: GARCIA, T. B.; NASCIMENTO FILHO, F. J. do; COSTA JÚNIOR, R. C.
A caracterização do germoplasma de guaraná, no CPAA, está sendo feita através de descritores morfológicos, facilmente mensuráveis. Devido à impossibilidade de se descrever todos os genótipos do acervo, estes serão divulgados por etapas. Nesta primeira etapa, estão envolvidos os genótipos da coleção de trabalho localizada na Fazenda Santa Helena, de propriedade da Sociedade Agrícola de Maués (SAMASA), constante de 64 genótipos.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Paullinia cupana var; Sorbilis; Brasil; Amazonas; Genotypes.; Clone; Germoplasma; Guaraná.; Genótipo; Germplasm.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665206

Programa de "Convivência do homem com a seca" no Estado de Sergipe: Projeto-Piloto.
Provedor de dados: 14
Autores: EMBRAPA. Centro de Pesquisa Agropecuária do Trópico Semi-Árido.
Caracterização geral do Esatado de Sergipe: Características físicas, características econômicas: setor primário, secundário e terciário; A zona Semi-Árida; O Projeto: concepção geral, caracterização da área do projeto, estratégia de intervenção, objetivos, público-meta, descrição detalhada dos componentes, organização institucional, estimativas de produção; resultados financeiros.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Pequeno agricultor; Convivência com a seca; Sergipe; Semi-árido; Desenvolvimento Rural; Pesquisa Agrícola; Tecnologia; Rural development.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/159684

Programa Nacional de Pesquisa em Fruteiras de Clima Tropical-PNPFCT.
Provedor de dados: 14
Autores: EMBRAPA-CNPMF.
Diagnóstico; Diretrizes do PNP fruteiras de clima tropical; Objetivos gerais; Objetivos e metas por produto ou grupo de produtos; Prioridades de pesquisa por produto ou grupo de produtos; Linhas de pesquisa/especialidades, como definidas pela Embrapa; Redação do documento de implantação do PNP Fruteiras de clima tropical.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: CENTRO DE PESQUISA.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/641665

CULTIVAR de soja BR-14.
Provedor de dados: 14
Características botânicas e agronômicas; Características; Reação as enfermidades; resultados; Recomendações e informações; Cultivares de soja desenvolvidas pela EMBRAPA em programas cooperativos de pesquisa.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Variedade; Soybeans; Cultivars.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/444325

Propagacao vegetativa do pequizeiro: enxertia em garfagem lateral e no topo.
Provedor de dados: 14
Autores: SILVA, J. A. da; FONSECA, C. E. L. da.
bitstream/item/103841/1/pesq-53.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Grafting.; Caryocar Brasiliense; Enxerto; Garfagem; Pequi; Reprodução.; Reproduction.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549392

Quebra de dormencia de sementes de feijao-bravo do Ceara (Canavalia brasiliensis).
Provedor de dados: 14
Autores: SILVA, J. C. S.; FARIAS NETO, A. L. de; AMABILE, R. F.
bitstream/item/105888/1/comtec-60.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Feijao bravo do Ceara; Canavalia brasiliensis.; Cerrado; Quebra da Dormência; Semente.; Dormancy breaking; Seeds.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549343

Efeito de sistemas de manejo sobre o desenvolvimento de coqueiros jovens.
Provedor de dados: 14
Autores: FONTES, H. R.
bitstream/item/81818/1/CPATC-COM.-TEC.-31-91.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Coqueiro; Coconut.; Coco; Cocos Nucifera; Cultivo Perene; Manejo.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/356785

Coleta de germoplasma clonal de guarana.
Provedor de dados: 14
Autores: GARCIA, T. B.; NASCIMENTO FILHO, F. J. do; CORREA, M. P. F.; DANTAS, J. C. R.
Em 1986, foi iniciado um programa de coleta de germoplasma de guarana, visado a introducao de 1000 genotipos, no periodo de cinco anos. A coleta de estacas foi feita em plantas produtivas, resistentes a antracnose, superbrotamento. A baixa frequencia dessas plantas nas populacoes, da ordem de 10%, reduziu o numero de genotipos coletados. Entre 1986-1987, foram coletados 288 genotipos em 25 populacoes, plantados em 1987 e 1988, respectivamente, originando 187 clones.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Paullinia cupana var; Sorbilis; Melhoramento genetico; Brasil; Amazonas; Genotypes.; Clone; Genótipo; Germoplasma; Guaraná.; Germplasm.; Breeding.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665205

Resultados de pesquisa com a cultura do arroz em 1989/90.
Provedor de dados: 14
Autores: EMBRAPA. Unidade de Execução de Pesquisa de Âmbito Estadual de Dourados (MS).
bitstream/item/65908/1/CPAO-DOC.-49-91.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Resultados; Brasil; Mato grosso do sul.; Arroz; Pesquisa.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/235452

Registro de introduções de plantas de cultura pré-colombiana coletadas na Amazônia brasileira.
Provedor de dados: 14
Autores: LIMA, R. R.; COSTA, J. P. C. da.
Registro de introduções do material coletado nas viagens realizadas de 1984 a 1988. Principais características das plantas matrizes: timbó, dao, acai, tucuma, cupuaçu, biriba, condessa, graviola, araticum, palmeiras do gênero oenocarpus, pupunha, urucu, taperebá, cutite, cajarana, cacau, plantas medicinais, boldo.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Coleta; Muda enraizada; Pré-colombiana; Plant; Seed; Pole; Rooted culting.; Estaca; Germoplasma; Planta; Semente.; Amazonia; Germplasm.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/385743

Conservação de germoplasma de patauá e bacaba (Complexo Oenocarpus/Jessenia).
Provedor de dados: 14
Autores: OLIVEIRA, M. do S. P. de; MOTA, M. G. da C.; ANDRADE, E. B. de.
bitstream/item/60197/1/CPATU-PA151.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Conservação de germoplasma; Jessenia batava.; Bacaba; Melhoramento; Patauá.; Oenocarpus; Germplasm conservation; Plant breeding.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374127

Recomendações da Comissão de Pesquisa de Cevada para o cultivo de cevada cervejeira em 1991 e 1992.
Provedor de dados: 14
Autores: REUNIÃO ANUAL DE PESQUISA DE CEVADA, 11., 1991, Ponta Grossa.
Regiões recomendadas; Cultivares recomendadas; Épocas de semeadura; Práticas culturais; Manejo e conservação do solo; Calagem e adubação; Controle de plantas daninhas; Controle de pragas; Controle de doenças; Colheita; Secagem.
Tipo: Recomendação Técnica (INFOTECA-E)
Palavras-chave: Brazil; Barley.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/817982

Uso e ocupacao do solo no Brasil Central.
Provedor de dados: 14
Autores: RESCK, D. V. S.
bitstream/item/101469/1/doc-35.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Brasil; Regiao Central; Brasil Central; Uso; Colonization; Agricultural production; Natural resource; Use; Savanna.; Colonização; Cerrado; Produção Agrícola; Recurso Natural; Solo.; Brazil.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/548568

Características, peculiaridades e tecnologia do leite de búfala.
Provedor de dados: 14
Autores: HUHN, S.; LOURENÇO JUNIOR, J. de B.; CARVALHO, L. O. D. de M.; NASCIMENTO, C. N. B. do; VIEIRA, L. C.
Características e peculiaridades do leite de búfala. Industrialização do leite. Características dos produtos derivados do leite de búfala. Tecnologia do leite de búfala e rendimento dos produtos.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Bubalino; Produto derivado; Buffalo; By-product; Revenue; Yoghurt; Cheese; Cheesecurd.; Doce de Leite; Industrialização; Iogurte; Leite; Pasteurização; Requeijão; Queijo; Rendimento; Tecnologia.; Industrialization; Pasteurization; Milk; Technology.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/387806

A produção de caupi no Ceará: implicações empíricas da adoção de tecnologias melhoradas.
Provedor de dados: 14
Autores: TEIXEIRA, S. M.; QUINDERE, M. A. W.; MELO, R. N.; SOARES, D. M.
As interações de fatores sócio-econômicos e níveis de adoção de tecnologia para a cultura do caupi (Vigna unguiculata) são relativamente pouco exploradas por propriedades produtoras. Utilizando um procedimento de sondagem rápida, precedido de informações secundárias, nosso estudo avaliou ganhos tecnológicos obtidos por 83 produtores, de 41 comunidades, em nove municípios do Estado do Ceará.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Caupi; Sistema; Sócio Econômica; Aspecto Econômico; Ceará.; Produção; Tecnologia; Vigna Unguiculata.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/192399

Principais pragas do caupi no Brasil.
Provedor de dados: 14
Autores: QUINTELA, E. D.; NEVES, B. P. das; QUINDERÉ, M. A. W.; ROBERTS, D. W.
Lagarta elasmo (Elasmopalpus lignosellus); Vaquinhas (Diabrotica speciosa, Cerotoma arcuata); Cigarrinha verde (Empoasca kraemeri); Pulgão preto (Aphis craccivora); Minador (Liriomyza sativae); Lagarta das vagens (Maruca testulalis, Etiella zinckenella); Manhoso (Chalcodermus bimaculatus); Percevejos (Crinocerus sanctus, Piezodorus guildini, Acrostermum sp); Caruncho (Callosobruchus maculatus); Tabelas.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Caupi.; Inseto; Praga; Vigna Unguiculata.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/510570

Efeito da deficiencia de alguns minerais na reproducao de bovinos.
Provedor de dados: 14
Autores: DAYRELL, M. de S.
bitstream/item/143007/1/2044.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Minerais; Bovine; Mineral defficiency.; Bovino; Deficiência; Reprodução.; Reproduction.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/582574

Recomendações técnicas para a cultura da soja no Paraná 1991/92.
Provedor de dados: 14
Autores: EMBRAPA - Empresa Brasileira de Pesquisa Agropecuária.
A agricultura e Mercosul; Manejo do solo; Rotacao de culturas; Clima; Cultivares; Populacao e densidade de semeadura; Epocas de semeadura; Instalacao da lavoura; Controle de plantas daninhas; Manejo de pragas; Controle de doencas; Colheita; Retencao foliar ("haste verde"); Tecnologia de sementes.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Recomendacao tecnica; Cultivar; Densidade; Epoca; Planta daninha; Controle; Retencao foliar; Brasil; Parana; Soybean; Technical directions; Fertilization; Variety; Weed; Control; Pest; Disease; Fungus; Nematode; Harvest; Seed.; Adubação; Bactéria; Colheita; Doença; Fungo; Manejo; Nematóide; Pratica Cultural; População; Praga; Semeadura; Rotação de Cultura; Semente; Tecnologia; Solo; Vírus.; Soja; Density; Crop rotation; Crop management; Brazil; Population; Plant density; Soil; Sowing date.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/447056

Descricao de um modelo para avaliacao e quantificacao de lesoes pulmonares de suinos e formulacao de um indice para classificacao de rebanhos.
Provedor de dados: 14
Autores: PIFFER, I. A.; BRITO, J. R. F.
bitstream/item/42227/1/documento-23.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Doença Respiratória; Suíno.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/435831

Manual de manejo conservacionista do solo para os estados do Rio Grande do Sul, Santa Catarina e Paraná.
Provedor de dados: 14
Autores: FERNANDES, J. M.; FERNANDEZ, M. R.; KOCHHANN, R. A.; SELLES, F.; ZENTNER, R. P.
bitstream/item/84173/1/CNPT-DOC.-1-91.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Conservação do Solo; Sistema de Produção.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/815636

Mission conjointe NMA/PRIFAS d´étude et de prospective dans Le Sudeste du Bresil, du 27 octobre au 10 novembre 1990.
Provedor de dados: 14
Autores: BOURASSET, A.-X.; COSTE, C.; GARCIA, G.; GIGAULT, J.; LAUNOIS, M.; MONARD-JAHIEL, A.
bitstream/item/116959/1/1589.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Acridologia; Cooperação; Sudeste; Brasil.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/17371

Boletim agrometeorológico 1991: Campo Experimental de Zootecnia: Embrapa-CPAA.
Provedor de dados: 14
Autores: OLIVEIRA, C. A. D. de; CABRAL, O. M. R.; SOUZA, M. L. M. de.
bitstream/item/151100/1/BolAgro-1991-C35866.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Climatologia agrícola.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1056424

Recomendacoes tecnicas para a cultura do gergelim no nordeste brasileiro.
Provedor de dados: 14
Autores: BELTRAO, N. E. de M.; FREIRE, E. C.; LIMA, E. F.
Sistema de cultivo
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Cultivo; Controle; Brasil; Nordeste; Sesame; Cultivation; Fertilization; Pest; Disease; Control.; Adubação; Doença; Gergelim; Praga; Sesamum Indicum; Solo.; Soil.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/262825

Feno de maniçoba na suplementação de novilhos alimentados com feno de capim bufel.
Provedor de dados: 14
Autores: SALVIANO, L. M. C.; NUNES, M. do C. F. S.
Este experimento foi conduzido no campo de Manejo da Caatinga do CPATSA-EMBRAPA em Petrolina, PE. O objetivo principal era avaliar o efeito da adicao de 2,5 kg de feno de manicoba no ganho de peso de novilhos alimentados com feno de capim buffel. O delineamento experimental adotado foi o completamente casualizado com dois tratamentos e quatro repeticoes. A adica ode feno de manicoba elevou substancialmente o consumo de forragem de capim buffel, passando de 5,16 para 7,09 kg/cab/dia, ou de 2,17 para 2,73 kg/100 kg de peso vivo. Em termos de ganho de peso, a adicao de feno de manicoba provocou um aumento de 473%, passando de 132 g para 757 g/cab/dia.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Capim bufel; Manihot pseudozlaziovii; Buffel grass; Feeding supplementation; Fiedlot; Steer; Hoy; Feed; Pasture.; Pastagem; Cenchrus ciliaris; Confinamento; Feno; Maniçoba; Novilho; Suplemento Alimentar.; Cassava.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133102

SISTEMAS de producao para a cultura da ervilha para graos secos.
Provedor de dados: 14
A ervilha (Pisum sativum L.) e uma planta anual, herbacea, autogama, que pertence a familia Leguminosae. Sao citados tres centros de origem: Centro Asiatico Central, Centro Mediterranico e Centro Abissinico. Quanto a forma de consumo, ha dois tipos de ervilhas cultivadas: 1) tipo "come-tudo", consumidas por inteiro, as vagens junto com os graos; 2) tipo graos verdes ou seco-reidratados, que sao comercializados na forma enlatada ou in natura. Este sistema de producao refere-se as ervilhas do tipo grao seco-reidratado. A cultura desenvolve-se melhor em clima ameno, com temperatura media entre 13 a 18oC. No florescimento e formacao das vagens nao tolera geadas. Ja a temperatura alta no florescimento pode causar o aborto das flores. Temperaturas acima de...
Tipo: Sistema de Produção (INFOTECA-E)
Palavras-chave: Ervilha - sistemas de producao - Brasil - Santa Catarina; Ervilha - produtor - caracterizacao; Ervilha - cultivares; Ervilha - semeadura; Ervilha - doencas; Ervilha - pragas.; Pisum Sativum.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/905851

Manual de práticas sanitárias para bubalinos jovens.
Provedor de dados: 14
Autores: LAU, H. D.
bitstream/item/34026/1/CPATU-CirTec60.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Bubalino; Sanidade; Buffalo; Sanity; Treatment; Disease; Post-partum.; Doença; Pós-Parto; Tratamento.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/379309

Coleta de germoplasma em populações naturais de patauá Jessenia bataua (Mart.) Burret e bacaba Oenocarpus spp.
Provedor de dados: 14
Autores: OLIVEIRA, M. do S. P. de; MOTA, M. G. da C.; ANDRADE, E. B. de.
bitstream/item/60184/1/CPATU-PA152.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Coleta de germoplasma.; Bacaba; Jessenia Bataua; Melhoramento; Patauá.; Oenocarpus; Germplasm; Plant breeding.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374133

Reação de cultivares e linhagens de algodoeiro a murcha causada por Fusarium oxysporum f.s.p. vasinfectum.
Provedor de dados: 14
Autores: LIMA, E. F.; CARVALHO, J. M. F. C.; TAVARES SOBRINHO, J.; SANTOS, J. W. dos.
bitstream/item/33379/1/REACAO-DE-CULTIVARES.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Suscetibilidade; Murcha; Fusarium oxysporum f; Sp; Vasinfectum; Brasil; Paraiba; Campina Grande; Resistance; Susceptibilidade; Survival.; Algodão; Fusariose; Doença; Gossypium Hirsutum; Resistência; Sobrevivência.; Cotton.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/262818

Doencas da ervilha (Pisum sativum L.).
Provedor de dados: 14
Autores: SANTOS, J. R. M.; REIFSCHNEIDER, F. J. B.; GIORDANO, L. B.; COBBE, R. V.
Situacao atual da ervilha no Brasil; Manejo integrado das doencas; Doencas de importancia economica no Brasil; Doencas e patogenos registrados no Brasil e no mundo; Distribuicao dos patogenos registrados no Brasil; Informacoes tecnicas sobre fungicidas registrados.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Pea; Bacterial disease; Fungal disease; Fungus; Nematode; Management.; Bactéria; Controle Químico; Doença; Ervilha; Fungo; Manejo; Nematóide; Pisum Sativum; Vírus.; Chemical control.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/757803

Comportamento de cultivares de milho no Estado de Sergipe: II ensaios estaduais de rendimento, 1989 e 1990.
Provedor de dados: 14
Autores: CARVALHO, H. W. L. de.
bitstream/item/90701/1/CPATC-PESQ.-AND.-46-91.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Cultivares; Melhoramento genetico; Brasil; Sergipe.; Cultivo Anual; Milho.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/356595

Amarelecimento fatal do dendezeiro.
Provedor de dados: 14
Autores: SILVA, H. M. e.
bitstream/item/61702/1/Belem-PA18.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Podridão da flecha.; Dendê; Doença.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/878792

Controle de plantas daninhas.
Provedor de dados: 14
Autores: SILVA, A. A. da; MELHORANÇA, A. L.
bitstream/item/65214/1/29711.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Planta daninha; Brasil; Mato Grosso do Sul.; Controle Químico; Milho.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/254708

Dimensionamento de tubulações e uniformidade de vazão para sistemas de irrigação por gotejamento.
Provedor de dados: 14
Autores: CONCEIÇÃO, M. A. F.
bitstream/item/72340/1/CPAMN-COM.-TEC.-1-91.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Gotejamento; Drip.; Irrigação.; Irrigation.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/72655

Developpement de l'elevage caprin: Massaroca - Bresil - Nordeste.
Provedor de dados: 14
Autores: CARON, P.
Contexte de l'operation; La demarche retenue; Les themes techniques abordes; Un theme majeur: l'organisation d'un systeme de credit: unan d'experience.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Pesquisa e desenvolvimento; Desenvolvimento territórial; Pesquisa em meio rural; Massaroca; Juazeiro; Bahia; Desenvolvimento rural; Caprino; Crédito Rural; Rural development.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/998502

Cultivar de soja BR-16.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Soja (Londrina, PR).
Características botânicas e agronômicas; Características; Reação a enfermidades; Resultados; Recomendações e informções.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Cultivar BR-16; Brasil; Paraná; Soybean.; Melhoramento; Variedade; Soja.; Brazil; Plant breeding; Varieties.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/444326

Renovação de pastagens de cerrado com arroz: I. Sistema Barreirão.
Provedor de dados: 14
Autores: KLUTHCOUSKI, J.; PACHECO, A. R.; TEIXEIRA, S. M.; OLIVEIRA, E. T. de.
Relata experiências desenvolvidas pelo CNPAF na renovação de pastagens com arroz, no Planalto Central. Como grande parte dos trabalhos foi desenvolvida na Fazenda Barreirão, em Piracanjuba (GO), o sistema foi cognominado de Barreirão. O Sistema Barreirão revela que, com a associação arroz x pasto na recuperação de pastagens degradadas, e possível melhorar-se substancialmente a produção pecuária, alem da produção de arroz, a um custo zero ou reduzidissimo, com tecnologias simples, eficazes e auto-sustentáveis.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Recuperação; Associação; Sistema Barreirão.; Arroz; Cerrado; Oryza Sativa; Pastagem.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/192394

Introducao e avaliacao de cultivares de alface (Lactuca sativa L.) nos periodos seco e chuvoso em Teresina-PI.
Provedor de dados: 14
Autores: DUARTE, R. L. R.; SETUBAL, J. W.; ANDRADE JUNIOR, A. S. de; ATHAYDE SOBRINHO, C.; SILVA, P. H. S. da; RIBEIRO, V. Q.
bitstream/item/97416/1/PAND530001.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Teresina; Piaui; Brasil.; Alface; Introdução de Planta; Lactuca Sativa; Variedade.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/51044

Endometrite bovina.
Provedor de dados: 14
Autores: SA, W. F. de.
bitstream/item/143005/1/2042.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Endometrite bovina.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/587652

Análise de coeficientes de uniformidade de distribuição de água em sistema de irrigação localizada.
Provedor de dados: 14
Autores: PINTO, J. M.; SOARES, J. M.; NASCIMENTO, T.
O estudo comparou oito métodos para cálculo do coeficiente de uniformidade de distribuição de água no sistema de irrigação localizada.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Distribuição; Gotejamento; Coeficiente; Drip; Localized; Dripping; Microsprinkling; Uniformity coefficient.; Irrigação; Análise; Água; Irrigação Localizada.; Irrigation; Sprinkler irrigation.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132870

Pragas e seu controle.
Provedor de dados: 14
Autores: ÁVILA, C. J.; DEGRANDE, P. E.
bitstream/item/65216/1/31727.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Entomologia.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/932568

Teor de cafeina em sementes secas de guarana Paullinia cupana var. Sorbilis.
Provedor de dados: 14
Autores: GARCIA, T. B.; NASCIMENTO FILHO, F. J. do; COSTA JUNIOR. R. C.; AQUINO, C. T. de.
Visando caracterizar clones de guaraná quanto ao teor de cafeína, foram coletadas amostras compostas de sementes secas de 67 genótipos, em experimentos localizados no município de Maués, AM, e submetidas a análise espectofotométrica.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Paullinia cupana var; Sorbilis; Brasil; Amazonas; Genotypes.; Cafeína; Análise Química; Clone; Espectrofotometria; Guaraná; Genótipo; Semente.; Caffeine; Seeds.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665208

Elementos limitantes à produção de pastagens nativas consorciadas com leguminosas na Ilha de Marajó.
Provedor de dados: 14
Autores: TEIXEIRA NETO, J. F.; SOUZA FILHO, A. P. da S.; SERRÃO, E. A. S.
bitstream/item/32036/1/CPATU-BP119.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Savana; Fertilização; Ilha de Marajó; Pará; Belém; Native pasture; Savanna; Fertilization; Production; Dry matter.; Matéria Seca; Pastagem Nativa; Produção.; Amazonia.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/383703

Rolo compactador para formação de pastagens.
Provedor de dados: 14
Autores: FRANZ, C. A. B.; SPAIN, J.; FOLLE, S. M.; BARCELLOS, A. de O.
bitstream/item/105889/1/comtec-61.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Construção; Formação; Rolo compactador.; Compactação do Solo; Cerrado; Maquina Agrícola; Pastagem; Solo.; Equipment; Pastures; Soil compaction.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549344

A podridão parda da haste da soja na safra 1989/90, no Rio Grande do Sul.
Provedor de dados: 14
Autores: COSTAMILAN, L. M.; YORINORI, J. T.
bitstream/item/133901/1/ID10574-1990-1991sojaresultados-p84-85.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/822352

A compactacao dos solos pode ser controlada.
Provedor de dados: 14
Autores: SARAIVA, O. F.; TORRES, E.
Diagnostico da camada compactada; Controle; Manutencao.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Compactação do solo; Soil compaction.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445144

Efeito do fósforo no desenvolvimento de clones de seringueira e sua ação na disponibilidade de zinco.
Provedor de dados: 14
Autores: VIEGAS, I. de J. M.; ALVES, R. M.
bitstream/item/32018/1/CPATU-BP116.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Desenvolvimento; Ilha do Mosqueiro; Pará; Brasil; Rubber tree; Yellow latosol; Fertilizer; Development.; Adubação; Clone; Fósforo; Hevea Brasiliensis; Latossolo Amarelo; Seringueira; Zinco.; Amazonia; Phosphorus; Zinc.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381205

CEBOLA São Paulo: primeira cultivar clara precoce brasileira.
Provedor de dados: 14
bitstream/item/177796/1/digitalizar0068.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Cultivar São Paulo; Allium Cepa; Cebola; Produtividade.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/773209

Informações preliminares sobre o cultivo do abacaxi, em Teresina- PI.
Provedor de dados: 14
Autores: LIMA, P. R. de A.; SILVA, P. H. S. da; ATHAYDE SOBRINHO, C; CARNEIRO, J. G. de M. e.
O cultivo do abacaxi no estado do Piaui, ainda que incipiente, tem grandes possibilidades de desenvolvimento diante das condições ambientais prevalecentes. Os resultados obtidos neste trabalho preliminar sobre a cultura, demonstraram que nas condições edafoclimáticas de Teresina, é possivel o cultivo do abacaxi, variedade Smooth cayenne, obtendo-se frutos de valor comercial. Há necessidade de novos trabalhos de pesquisa, visando definir melhor as técnicas culturais, no que se refere a adubação, irrigação, espaçamento, densidade e indução floral.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Cultivo; Piauí.; Abacaxi.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/52453

Niveis de fluor provenientes dos fosfatos de Tapira e monocalcico no desempenho e caracteristicas de osso de suinos em crescimento e terminacao.
Provedor de dados: 14
Autores: BARBOSA, H. P.; MORES, N.; FIALHO, E. T.; BELLAVER, C.; BARIONI JUNIOR, W.
bitstream/item/58752/1/CUsersPiazzonDocuments176.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Fosfatos; Ossos; Suínos.; Crescimento; Flúor; Terminação.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/435948

Controle biológico da mosca branca Trialeurodes vaporariorum (Homoptera, Aleyrodidae), em casas de vegetação.
Provedor de dados: 14
Autores: OLIVEIRA, M. R. V. de; FERREIRA, D. N. M.; GERK, A. de O.
Casas de vegetação podem ser consideradas ilhas ecológicas nas quais as condições ambientais diferem muito daquelas encontradas em campo aberto, onde plantas e animais estão expostos as constantes variações abióticas e bióticas do meio. Nesses ambientes o suprimento de energia e alimento é sem limites ao crescimento do vegetal e rápido e exuberante, fornecendo um ótimo habitat para predadores. O efeito de isolamento das pragas dentro de uma casa de vegetação contribui para a não efetividade das medidas de controle e, ainda, para o aumento e manutenção da resistência aos pesticidas devido ao seu uso prolongado.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Controle Biológico; Mosca Branca; Praga.; Trialeurodes vaporariorum.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/967846

Efeito da relação esterco/terriço no desenvolvimento de mudas de urucuzeiro.
Provedor de dados: 14
Autores: KATO, O. R.; BELFORT, A. J. L.; CASTRO, N. H. C. de; KATO, M. do S. A.
bitstream/item/34022/1/CPATU-CirTec59.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Urucu; Adubacao organica; Terrico; Desenvolvimento; Belem; Pará; Brasil; Annatto; Cultting; Manure; Development.; Bixa Orellana; Esterco; Muda.; Amazonia; Organic fertilizers.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/379310

MILHO: informações técnicas.
Provedor de dados: 14
Aspectos sócio-econômicos; Manejo e conservação de solos; Cultivares; Semeadura; Calagem e adubação; Controle de plantas daninhas; Doenças; Pragas e seu controle; Colheita e armazenamento; Secagem e beneficiamento.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Cultivo; Brasil; Mato Grosso do Sul.; Milho.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/252889

Custo de produção de milho na região de Dourados, MS, safra 1991/92.
Provedor de dados: 14
Autores: MELO FILHO, G. A. de; KRUKER, J. M.
bitstream/item/66595/1/N-44-out.91.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Brasil; Mato grosso do sul.; Custo; Milho; Produção.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/236987

Dinamica da materia organica na regiao dos cerrados.
Provedor de dados: 14
Autores: RESCK, D. V. S.; PEREIRA, J.; SILVA, J. E. da.
bitstream/item/101470/1/doc-36.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Rotational cropping; Cultura; Fertilizer; Matéria; Orgânica; Rotação; Sistema.; Cerrado; Fertilidade; Matéria Orgânica; Rotação de Cultura; Solo.; Organic matter; Soil.; Savannas.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/548002

Calagem e adubação.
Provedor de dados: 14
Autores: PÍPOLO, A. E.
bitstream/item/65213/1/29710.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Brasil; Mato Grosso do Sul.; Adubação; Calagem; Milho; Solo.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/254707

International cooperation on forestry research and development Brazil.
Provedor de dados: 14
Autores: GALVAO, A. P. M.
bitstream/item/40284/1/doc22.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Brasil.; Cooperação Internacional; Pesquisa Florestal.; Forestry; International cooperation; Research.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/294092

Silo de alvenaria para armazenamento de milho.
Provedor de dados: 14
Autores: OLIVEIRA, P. A. V. de; MARTINS, R. R.
bitstream/item/58747/1/CUsersPiazzonDocuments181.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Silo alvenaria.; Armazenamento; Milho.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/436061

Aspectos sócio-econômicos.
Provedor de dados: 14
Autores: MELO FILHO, G. A. de.
bitstream/item/65203/1/29633.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Brasil; Mato Grosso do Sul.; Economia; Milho.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/252890

Cultivares.
Provedor de dados: 14
Autores: TEIXEIRA, M. do R. de O.
bitstream/item/65204/1/29635.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Brasil; Mato Grosso do Sul.; Melhoramento; Milho; Variedade.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/252893

Mocinha: cultivar de abobora para verao, resistente a podridao dos frutos.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Hortaliças.
bitstream/item/181443/1/digitalizar0088.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Pumpkin; Squash; Resistance; Phytophthora Capsici; Resistência.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/751115

Manual para construção de um secador-armazenador de grãos para os produtores rurais.
Provedor de dados: 14
Autores: CORNEJO, F. E. P.; PARK, K. J.; NOGUEIRA, R. I.; PONTES, S. M.; SILVA, C. S. da.
Descrição do equipamento. Vantagens. Desempenho do equipamento. Relação do material para a construção do equipamento.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Secador; Grão; Máquina agrícola.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/410550

Pesquisa para agricultura auto-sustentável: perspectivas de política e organização na Embrapa.
Provedor de dados: 14
Autores: FLORES, M. X.; QUIRINO, T. R.; NASCIMENTO, J. C.; RODRIGUES, G. R.; BUSCHINELLI, C.
A necessidade de uma agricultura auto-sustentável; Sustentabilidade no conctexto da agricultura brasileira; Regiões de agricultura intensiva; Regiões de fronteira agrícola; O desafio; A EMBRAPA e a pesquisa agrícola auto-sustentável; Política de pesquisa em agricultura auto-sustentável; Diagnósticos de recursos naturais e de riscos de degradação; Suporte tecnológico para a política de agricultura auto-sustentável; Pesquisa para a exploração auto-sustentável da bacia amazônica; As dimensões sócio- políticas da agricultura auto-sustentada.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Preservação; Politic; Ecosystem; Preservation.; Agricultura; Ecossistema; Política.; Agriculture.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/108264

Produção de semente genética de soja - 1990/91.
Provedor de dados: 14
Autores: LINHARES, A. G.; NEDEL, J. L.
bitstream/item/133905/1/ID10137-1990-1991sojaresultados-p79-80.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/821907

Competicao e avaliacao de clones de guarana (Paullinia cupana var. sorbilis).
Provedor de dados: 14
Autores: NASCIMENTO FILHO, F. J. do; GARCIA, T. B.
Levando-se em consideração que a propagação por semente é uma das repons´´aveis pela alta variabilidade genética, utilizou-se a propagação vegetativa, via enraizamento de estacas, como meio de fixar os genótipos selecionados. Foram selecionados 55 clones na fase vegetativa e 27 na fase produtiva, os quais apresentaram potencial de produção acima de 1kg/semente seca/planta e níveis de 0 a 1 de antracnose.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Paullinia cupana var; Sorbilis; Brasil; Amazonas; Planting stock; Propagation by cuttings.; Clone; Enraizamento de Estaca; Guaraná.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665340

Grafolita (Grapholita molesta): bioecologia e controle.
Provedor de dados: 14
Autores: SALLES, L. A. B. de.
bitstream/item/61522/1/CNPFT-Documento-42.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Grafolita; Bioecologia; Controle.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/743157

Manual de tomaticultura para pequenos produtores da Amazônia.
Provedor de dados: 14
Autores: CHENG, S. S.
bitstream/item/197902/1/FL01664.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Cultivo; Brasil; Cultivation; Pequeno Produtor; Tomate; Amazonia; Tomatoes.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375699

Período de incubação de ovos de Sternechus subsignatus.
Provedor de dados: 14
Autores: LORINI, I.; SALVADORI, J. R.; GASSEN, D. N.; AGRANIONIK, G.
bitstream/item/133939/1/ID43417-1990-1991sojaresultados-p99-100.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Soja.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1029494

SISTEMA de produção para pimenta-do-reino em Rondônia.
Provedor de dados: 14
Sistema de producao para pimenta-do-reino em Rondonia: areas de abrangencia, operacoes que formam o sistema e recomendacoes tecnicas.
Tipo: Sistema de Produção (INFOTECA-E)
Palavras-chave: Pimanta-do-reino; Sistema; Brasil; Rondonia; Production; System.; Produção.; Piper Nigrum; Pepper.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/905856

Efeito do sombreamento artificial sobre a produção e algumas características do feijoeiro comum (Phaseolus vulgaris L.).
Provedor de dados: 14
Autores: MAGALHAES, P. C.; OLIVEIRA, A. C. de; PEREIRA FILHO, I. A.; RAMALHO, M. A. P.
bitstream/item/30642/1/Pesq.And.-4.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Artificial; Bean; Production.; Feijão; Phaseolus Vulgaris; Produção; Sombreamento.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/477143

Vibriosis in sea bass
Provedor de dados: 5
Autores: Breuil, Gilles.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00271/38240/36423.pdf

Le 'Mussel-Watch' français: résultats acquis sur les moules et les huîtres du littoral de la France. Exploitation de ces résultats dans le cas particulier de l'estuaire de la Seine
Provedor de dados: 5
Autores: Claisse, Didier; Simon, Serge.
Depuis 1979 le Réseau National d'Observation de la qualité du milieu marin (RNO) pratique une surveillance trimestrielle des teneurs en contaminants métalliques et organiques dans les moules et les huîtres du littoral français. Cette communication résume les méthodes et les actions d'assurance de qualité utilisées. Les résultats sont présentés de manière synthétique et les points remarquables sont mis en évidence. Une tentative de relation est faite entre les concentrations dans la Seine faisant l'objet d'un suivi régulier et les résultats du 'Mussel-Watch' exposés précédemment.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00017/12780/9714.pdf

Troubles d'origines biotique et abiotiques des macrophytes marins d'interêts alimentaires et industriel - Catalogue 1991
Provedor de dados: 5
Autores: Campello, Francois.
Ce catalogue regroupe les troubles connus qui peuvent affecter les macrophytes cultivées dans le monde, appartenant aux familles des Phéophycées et des Rhodophycées. Des virus, des bactéries, des champignons, des épiphytes et des endophytes divers, ainsi que des agents encore non identifiés et des substances chimiques, naturelles ou dues à l'activité humaine, peuvent compromettre la qualité et les rendements en algoculture.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00080/19133/16728.pdf

Life cycle, dynamics, and production of Echinogammarus marinus (Leach (Amphipoda)) in the Mondego Estuary (Portugal)
Provedor de dados: 5
Autores: Marques, J C; Nogueira, A.
A benthic sampling programme was carried out in 1985/1986, in winter and summer, in order to characterize the intertidal community structure in the Mondego Estuary (Portugal). Echinogammarus marinus (Amphipoda, Gammaridae) was considered a key species in the algal-covered areas, and was particularly associated with Fucus spp. A study of its life cycle, population dynamics and production was therefore carried out. The results reinforce the generalized notion that estuaries are highly productive systems, and reflect the important role of Amphipods in the productivity of habitats colonized by them.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37877/35958.pdf

Grossissement de la crevette impériale dans les marais de l'Atlantique
Provedor de dados: 5
Autores: Hatt, Philippe-jacques.
La famille des Pénéides comprend plus de 200 espèces réparties plus particulièrement dans les mers chaudes et tempérées. P. japonicus est très répandue au Japon, en particulier sur la côte Pacifique et méridionale. Elle est fréquente le long des côtes de Chine et de Corée. On la trouve à l'état endémique sur les côte de l'Afrique de l'Est, de la Mer Rouge, des golfes d'Alexandrie, d'Arabie et du Bengale, de l'archipel indonésien, du Nord-Est de l'Australie et des Iles Fidji. Elle a été introduite artificiellement dans le bassin méditerranéen et sur la côte atlantique, où des pêcheurs signalent leur présence exceptionnelle.
Tipo: Text
Ano: 1991
URL: https://archimer.ifremer.fr/doc/00509/62114/66307.pdf

Rejets urbains et contamination fecale
Provedor de dados: 5
Autores: Pommepuy, Monique; Dupray, Elisabeth; Guillaud, Jean-francois; Derrien, A; L'Yavanc, Jacky; Cormier, M.
The behaviour of fecal bacteria was investigated in a turbid estuary which is also a shellfishing area. Sediments are polluted by sewage by the way of settlement, fecal bacteria mixed with estuarine water being able to survive a very long time (T90 are about several days). By measuring the increase of salt tolerance of the strains grown in natural estuarine organic matter, it was demonstrated that Escherichia coli is able to support the salinity of coastal water. Moreover, because light penetration is obstructed by suspended matter, the solar bactericidal effect is very low. A close relationship between T90 and light intensity received by the bacteria is found. These mechanisms can explain the low die-off rate found in turbid areas.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00267/37860/35941.pdf

Distribution verticale de Dinophysis spp au cours d'un cycle de 48 heures dans le port d'Antifer (Normandie)
Provedor de dados: 5
Autores: Lassus, Patrick; Maggi, Pierre; Proniewski, F.; Truquet, Philippe; Nizard, G.
Time-related Dinophysis spp vertical profiles have been studyed during a 48 hours cycle in a submerged cylindric tank. A coïncidental Gymnodinium sp. (Scrippsiella trochoidea and Prorocentrum triestinum as companion species) red tide was believed to have strong effect on Dinophysis distribution in the upper layer during the tirst 24 hours cycle of the period of investigation (August 30-31, 1991). Between 24 and 48 hours, the sharp decrease of Dinophysis densities as well as the graduai decline observed in the red tide and in the vertical thermal gradient have resulted in a migration of dominant species : D. sacculus and D. cf. acuminata toward subsuperficiallevels (5 to 7 m.d) with a higher range in cells vertical movements. This behavior is very similar...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00138/24948/23041.pdf

Testing of the Argentina oyster, Ostrea puelchana, in several French oyster farming sites
Provedor de dados: 5
Autores: Pascual, Marcela; Martin, Anne-genevieve; Zampatti, Eduardo; Coatanea, Denis; Defossez, Jérôme; Robert, Rene.
Because of diseases affecting fIat oyster Ostrea edulis, acclimatization of the Argentina oyster Ostrea puelchana has been tested in 1989-90 in five French oyster farming sites. Following ICES recommendations , hatchery produced juveniles, from parents imported from Argentina, were transferred to experimental si tes in summer 1989. Very high mortalities occurred, reaching 46 to 98% in March-Apri1 1990. They continued later on, resulting in the end of experiments in March 1991. The growth of surviving oysters was relatively poor in comparison of the local species. Parasites Marteilia refringens and Bonamia ostreae have been detected but at rates inadequate ta explain the high mortalities. AlI these results lead not to retain this species for breeding on...
Tipo: Text
Palavras-chave: Huître; Ostrea puelchana; Parasitologie; Marteilia refringens; Oysters; Ostrea puelchana; Parasitology; Marteilia refringens.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00018/12946/9916.pdf

Culture of freshwater prawn Macrobrachium rosenbergii in the State of Rio de Janeiro, Brazil, from 1981 to 1990
Provedor de dados: 5
Autores: Thomas, Jacques Eric; Lacroix, Denis.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00040/15168/12505.pdf

Cartographie krigée des mollusques suspensivores compétiteurs trophiques des huîtres du bassin de Marennes-Oléron : l'implications pour la planification de l'échantillonnage
Provedor de dados: 5
Autores: Sauriau, Pierre-guy; Bacher, Cedric.
Stock assessement of wild soft-bottom mol/uses has been part of a general approach to shellfish management in oyster farming in Marennes-Oleron Bay. A sampling survey is described as a stratified random sampling after optimum allocation of the sample sire in each stratum. The aim of this study is ta ilIustrate the use of kriging techniques in the case of suspension-feeders. Regarding suspension-feeding molluscs. trophic competitors of the oyster Crassostrea gigas the whole stratified design produced an estimation with a precision around 25%. Then the geostatistical technique. i.e. kriging was used to depict the spatial and variability patterns of several trophic groups. The biomass data are expressed in ash-free. dry-weight units. In addition, the...
Tipo: Text
Palavras-chave: Marennes Oléron; Crassostrea gigas; Krigeage; Suspensivore; Echantillonnage stratifié; Peuplement benthique.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-3055.pdf

Le phosphore dans les sédiments aquatiques : formes géochimiques et méthodes d'identification
Provedor de dados: 5
Autores: Andrieux, Francoise.
Les formes géochimiques du phosphore dans la matière particulaire et les sédiments, ainsi que les méthodes globales ou spécifiques utilisées pour les identifier sont présentées. Puis une revue des concentrations obtenues par plusieurs auteurs dans différents types de sédiments est réalisée. Enfin, l'analyse des travaux sur la biodisponibilité du phosphore sédimentaire met en évidence la difficulté de l'évaluer spécifiquement pour les différentes formes rencontrées.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00082/19347/16941.pdf

Preliminary results of a trawl fitted with a selective grid for the fishery of benthic species from Celtic Sea and Bay of Biscay
Provedor de dados: 5
Autores: Meillat, Marc; Dupouy, Herve; Bavouzet, Gerard; Kergoat, B.; Morandeau, Fabien; Gaudou, Olivier; Vacherot, Jean-philippe.
The fishery for benthic species (Monkfish, Megrim, Rays, etc ... ) represents for the surrounder countries of the Celtic Sea and the Bay of Biscaye one of the most important activities . An estimate of the discards of the main species resulting from the sorting practice onboard of the trawlers participating in this fishery was made in 1985 and 1991. it was concluded that an important quantity of juveniles of Rays, Megrim and Monkfish are discarded each year causing an important mortality. The aim of the present paper is to present the preliminary results of a selectivity grid fixed on a bottom trawl to limit as possible the discards. Three different grids were tested at sea during surveys with different results. The major problem is due to difference in...
Tipo: Text
Palavras-chave: Chalut sélectif; Grille; Mer Celtique; Golfe de Gascogne; Baudroies; Sardines; Raies; Selectivity; Grid; Trawl; Celtic Sea; Bay of Biscaye; Monkfish; Megrim; Rays.
Ano: 1991
URL: https://archimer.ifremer.fr/doc/00394/50567/51258.pdf

Culture of sea bass (Dicentrarchus labrax L)
Provedor de dados: 5
Autores: Coves, Denis; Dewavrin, Guirrec; Breuil, Gilles; Devauchelle, Nicole.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00049/16021/13482.pdf

Valorisation des produits de la mer en Guyane - Etude technique
Provedor de dados: 5
Autores: Knockaert, Camille.
Les espèces locales sont abondantes en quantité et en variétés. Jusqu'à présent la pêche est essentiellement orientée sur la crevette. Cependant dans un contexte de difficultés (ressource + cours à la baisse pour schématiser) ce secteur cherche à diversifier son activité et s'intéresse à la valorisation de son potentiel de pêche qui était jusque là négligé. La seule activité de transformation est l'oeuvre de quelques congélateurs se bornant à reconditionner les produits : ensachages en filets, Dames ou entiers (faible valeur ajoutée).  Ce rapport a pour objet de définir les possibilités de valorisation de la filière des produits de la mer en Guyane, que ce soit par l'amélioration des structures existantes ou la création de nouvelles activités.  Dans une...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00134/24510/22536.pdf

Nouvelle approche dans l'etude de la dynamique sedimentaire des estuaires macrotidaux a faible debit fluvial
Provedor de dados: 5
Autores: L'Yavanc, J; Bassoullet, P.
The short estuaries located on the English Channel and Atlantic coasts are distinguished by short-lived flood peaks and a very small average water discharge. Affected by large tide ranges during spring tides, they exhibit very different hydrosedimentological characteristics with low fluvial sediment input compared to marine sediment input. The formulation of a mathematical model for cohesive suspended matter transport and bottom evolution has necessitated a comparative study of bathymetric data and the recording of seasonal sediment movement in the Morlaix estuary.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00267/37864/35945.pdf

Structuration spatiale des peuplements zooplanctoniques et fonctionnement hydrodynamique en milieu lagunaire
Provedor de dados: 5
Autores: Jouffre, D; Lamhoai, T; Millet, B; Amanieu, M.
In order better to understand brackish ecosystem functioning, this study deals with zooplankton spatial organization in a North-Mediterranean lagoon (etang de Thau). A statistical treatment - spatial contiguity constrained clustering - is used to divide the lagoon into several homogeneous zones with regard to zooplankton communities. Confrontation between biological and physical patterns (hydroclimatic context data together with results of a numerical simulation of hydrodynamic circulation in the lagoon) tends to show that: 1) Zooplankton community spatial patterns have a short-term significance (few days) and do not reveal any seasonal characteristic; 2) Inversion of the water flows between the lagoon and the sea plays a major role in structuring and...
Tipo: Text
Palavras-chave: ZOOPLANKTON; COMMUNITIES; SPATIOTEMPORAL PATTERNS; ECOSYSTEM FUNCTIONING; PHYSICO-BIOLOGICAL RELATION.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21272/18882.pdf

Collective effects of development on the marine environment
Provedor de dados: 5
Autores: Pearce, J B.
This paper identifies issues associated with effects of industrialization and urbanization on the marine environment. Emphasis is given to the collective effects of development and impacts on living marine resources. Issues of concern include inorganic and organic contaminants, nutrient enrichment and eutrophication, physical degradation of habitat, and non-point sources of stresses. Conclusions are based on case studies and include solutions as these are being practiced.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00267/37866/35947.pdf

Obtention de souches conchylicoles performantes par polyploïdisation (2ème partie)
Provedor de dados: 5
Autores: Gerard, Andre.
Following a phase of experimental system development, acquisition and improvement of triploidisation techniques carried out in 1989, the 1990 program divides into four main actions:1) significant production of diploid and triploid populations of cupped oysters and Pacific clams in order to compare their performances in French coastal waters2) first trials of triploidy induction in European clam3) development of a ploidy control technique at any stage of the animal life, through digital imaging4) summary of the first trials of tetraploidy induction in C. gigas and R. philippinarum
Tipo: Text
Palavras-chave: Imagerie numérique; Ruditapes decussatus; Ruditapes philippinarum; Crassostrea gigas; Cytogénétique; Tétraploïdie; Triploïdie; Polyploïdie.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-3855.PDF

Biologie et écotoxicologie des véligères de Crassostrea Gigas (Thunberg) dans le bassin d'Arcachon
Provedor de dados: 5
Autores: His, Edouard.
This study analyses the larval recruitment and biology in Crassostrea Gigas, in the Arcachon Bay. Three types of observations were conducted: - a study of the reproduction anomalies in C. gigas between 1976 and 1981. - observations of the particulate nutrition of the veligeres. - ecotoxicologic experiments (organostannic action on oyster reproduction, mostly). The reproduction anomalies in C. gigas could not be attributed to either the genitors' quality or the water quality in the Arcachon Bay, but to a perturbation of the veligeres' trophic regime; the hypothesis of an alteration of the nanoplancton in the Bay, during the summer period, and linked to the action of the organotins is highly considered. The assumption of responsibility of the particulate...
Tipo: Text
Palavras-chave: Organostanniques; Ecotoxicologie; Nutrition; Anomalies de la reproduction; Bassin d'Arcachon; Crassostrea gigas; Véligères; Recrutement.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/these-3347.pdf

Accuracy of Wind Measurements Performed on Buoys, Ship, and Island during the TOSCANE-2 Experiment
Provedor de dados: 5
Autores: Queffeulou, Pierre.
In 1983 the project "Travaux d'Oceanographie Spatiale: Capteurs Actifs dans l'Atlantique Nord-Est" (TOSCANE) was initiated in view of calibration, validation, and use of satelliteborne scatterometer and altimeter measurements in terms of wind and wave data, with special emphasis on the ERS-1 satellite to be launched in 1991 by the European Space Agency. The wind measurements from an array of buoys and ship and land stations, deployed during the last experiment within the program, TOSCANE-2, are described, and a method is given to evaluate their accuracy. When comparing wind data from two measuring stations at sea, the averaging time has to be selected according to the separation distance between the two locations to filter out the space-induced wind...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00182/29313/28271.pdf

Les sources d'incertitude en gestion des pêcheries. Evaluation et propagation dans les modèles
Provedor de dados: 5
Autores: Pelletier, Dominique.
Most North-East Atlantic fisheries are managed by controlling the catch level: a Total Allowable Catch (TAC) is annually agreed for each stock under concern, based on the scientific advice provided by the International Coucil for the Exploration of the Sea (ICES). TAC computations and diagnoses about the stock are achieved by using a model (the Virtual Population Analysis model, VPA) that accounts for the impact of fishing pressure on the dynamics of the population. Commercial catches are the main source of information for assessing the evolution of the demographic structure of the population. Catch sampling yields an estimation of the number fish caught per age-group (Pelletier 1990b). However, sensitivity analyses stress other input parameters which are...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00032/14315/11599.pdf

Suivi de la reproduction des mollusques d'élevage 1991
Provedor de dados: 5
Autores: Faury, Nicole; Ratiskol, Jacqueline.
Les conditions météorologiques semblaient cette année à priori favorables à la reproduction des moules. Cependant, le maturation des gonades a été très lente. Ainsi, les premières pontes, de faible importance, ont eu lieu début Avril. Plusieurs émissions tardives sont apparues fin Mai et se sont poursuivies jusqu'au début du mois de Juillet. Elles n'ont pas été importantes et ont conduit à une faible quantité de larves au stade fixation. Un captage "moyen" a été observé début Mai. Ensuite, la présence de quelques larves grosses n'a pas permis un recrutement suffisant. Généralement, suite à la période de reproduction les moules reconstituent rapidement leur réserve; or cette année, elles sont restées maigres jusqu'à la fin Juillet. Le fort déficit...
Tipo: Text
Palavras-chave: Reproduction; Captage; Naissain; Crassostrea gigas; Marennes Oléron; Mytilus edulis.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00072/18285/15857.pdf

L'ombrine subtropicale ... une espèce pour l'aquaculture de demain ...
Provedor de dados: 5
Autores: Soletchnik, Patrick; Goyard, Emmanuel; Thouard, Emmanuel.
L'aquaculture en Martinique commence dans les années 1970 avec le transfert technologique de l'élevage de la chevrette : Macrobrachium rosenbergii. Au début des années 1980, le CNEXO en collaboration avec une association régionale (ADAM) travaille aux Antilles à la sélection d'espèces tropicales de poissons. Cette étude s'inserre alors dans un programme international de sélection d'espèces tropicales, coordonné par le Centre Océanologique du Pacifique. En début d'année 1987, après une étude prospective d'investigation aux USA, L'IFREMER Martinique initie le programme d'étude de la mise au point technique de l'élevage de l'ombrine en conditions intensives ...
Tipo: Text
Ano: 1991
URL: https://archimer.ifremer.fr/doc/00509/62116/66309.pdf

Divergence genetique de quelques populations naturelles de Cepaea nemoralis et Cepaea hortensis en France
Provedor de dados: 5
Autores: Guiller, A; Madec, L.
Electrophoretic analysis of eight polymorphic loci in 23 mixed or monospecific populations of Cepaea nemoralis and Cepaea hortensis indicates important genetic dissimilarities between Breton and Pyrenean areas. The concordance between groups of samples and various latitudinal or altitudinal zones suggests that the influence of climatic factors could be involved. Founder effects also seem to increase the differentiation in some populations; the lower genetic variability in three pyrenean samples probably submitted to frequent extinctions could illustrate this process. Nevertheless, divergences corresponding to plurispecific samples suppose the absence of interactions between the two species.
Tipo: Text
Palavras-chave: Mollusca; Cepaea hortensis; Cepaea nemoralis; Climate; Electrophoresis; Natural populations; Genetics.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1714.pdf

Typologies et composantes des flottilles du sud du Golfe de Gascogne en 1986 - de Noirmoutier à Bayonne
Provedor de dados: 5
Autores: Decamps, Philippe; Leaute, Jean-pierre.
This document presents an analysis of the fishing fleet operating in the Southern Bay of Biscay, based on vessel characteristics and records of fishing activities during 1986, using multivariate ordination techniques. It reveals groups of vessels having similar fishing patterns with regard to utilization of various gears, areas fished and species caught. The results have potential interest for fisheries biologists, and also for economists and regional or national managers.
Tipo: Text
Palavras-chave: Typologie; Composantes; Flottilles; Golfe de Gascogne.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00266/37734/35748.pdf

Surveillance écologique et halieutique. Site de Gravelines. Novembre 1989 - Octobre 1990
Provedor de dados: 5
Autores: Delesmont, Régis; Delesmont, Edith; Grossel, Hubert; Hitier, Benoist; Le Fevre-lehoerff, Geneviève; Woehrling, Daniel; Dewarumez, Jean-marie; Menu, Dominique.
Ce rapport de travail présente les résultats obtenus pour la période de novembre 1989 à octobre 1990 devant la centrale de Gravelines et correspond au 12ème rapport de surveillance. La surveillance écologique du site consiste à observer, en liaison avec les variations naturelles et celles dues au fonctionnement de la centrale, le milieu physique et biologique. Nous nous sommes attachés à déceler les changements qui peuvent intervenir dans la qualité et la biomasse des écosystèmes.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00005/11603/8239.pdf

Multiparametric investigation of North Sea particulate matter. Preliminary results in the Skagerrak
Provedor de dados: 5
Autores: Boust, D; Dupont, J P; Bienvenu, P; Ezat, U; Lafite, R; Leboulanger, T; Vinchon, C; Albarede, F.
During the Tramanor cruise, in July 1988, seawater and particle samples were collected along a vertical profile (530 m depth) located in the Skagerrak, a crossing-area for different water-masses and particle pools. A sampling strategy was developed to ensure the homogeneity of the different sets of subsamples subjected to analysis by closely-coupled complementary techniques: turbidimetry, granulometry, scanning electron microscope (SEM) observations, Tracor analyses, particulate organic carbon and nitrogen measurements, and neutron activation analysis (NAA). The Baltic outflow is found in the topmost 20 m water-column (salinity approximately equals 23.5; temperature approximately equals 18 degree C) overlying North Sea waters (salinity approximately equals...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37875/35956.pdf

Etude experimentale preliminaire sur les echanges gazeux chez Pinna nobilis
Provedor de dados: 5
Autores: Vicente, N; Riva, A; Butler, A.
Breathing exchanges of Pinna nobilis L. are studied in situ and in the laboratory with two methods. First method consist in introducing samples of Pinna under a 40l plexiglass bell equipped with haps. The bell is positionned by diving. The consumption of oxygen is observed with water samples and the oxygen concentration is measured with an electronic oxymeter. Experiments which are carried out during nycthemeral cycles are reproduced in the laboratory with the same type of bell. A second method carry into effect an apparatus more sophisticated, who put into circulation a current of water in an airtight thermostated cellule, where a specimen of young Pinna is introduced. This sample is gradually adaptated to the conditions of the medium. Breathing...
Tipo: Text
Palavras-chave: Pinna nobilis; Bivalvia; Temperature; Metabolism; Oxygen consumption; Experimental research; Breathing mixtures; Marine molluscs.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1761.pdf

Ascophyllum nodosum (L.) Le Jolis as a bioindicator of radioactivity in the Irish Sea
Provedor de dados: 5
Autores: Bourne, G S; Assinder, D J.
The response of Ascophyllum nodosum to a sudden increase in radioactivity analogous to a nuclear incident is examined in the field. super(137)Cs, super(241)Am and super(239+240)Pu showed net accumulation with exposure time, unlike natural super(228)Th, which was used as a control. Caesium had the highest accumulation rate followed by americium and finally plutonium. Younger plant sections were found to accumulate all the radionuclides significantly faster than older plant sections. Americium and plutonium were accumulated significantly faster in frond tissue than in vesicle tissue. No significant difference could be identified for caesium. These results and their implications for future monitoring surveys and modes of uptake are discussed.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37878/35959.pdf

Etude de l'extrusion
Provedor de dados: 5
Autores: Baron, Regis.
Ce rapport fait suite au stage effectué au sein du laboratoire «Génie Alimentaire», de l'Institut Français de Recherche pour l'Exploitation de la MER. Ce stage fait partie du cycle de préparation à la Maîtrise de Sciences et Techniques en Systèmes Automatiques Industriels. Il s'est déroulé du 25 Février au 17 Mai 1991.Ce rapport porte sur l'étude du procédé d'extrusion.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00137/24870/22958.pdf

Etude de l'impact des engins de pêche trainants en zone cotière. Cas particulier du chalutage en Baie de Saint-Brieuc (Manche Ouest)
Provedor de dados: 5
Autores: Hamon, Dominique; Berthou, Patrick; Fifas, Spyros.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00392/50359/51060.pdf

Sand bodies and sand transport paths at the English Channel-North Sea border: Morphology, hydrodynamics and radioactive tracing
Provedor de dados: 5
Autores: Beck, C; Clabaut, P; Dewez, S; Vicaire, O; Chamley, H; Augris, C; Hoslin, R; Caillot, A.
Surficial sediments and detailed submarine morphology of the southern Strait of Dover have been mapped using different complementary techniques: side-scan sonar survey, bottom sediment sampling, and bathymetry. The geometry and regional pattern of sand bodies - sand waves, megaripples, sand ribbons, etc. - as well as current-meter data and eight radioactive tracing experiments in different settings, are presented and analyzed. The mean regional net sand transport is 0.2 m super(3)/linear metre/day. The strong tidal currents of the region studied are considered as the main factor responsible for sand transport, while the swell plays an important but local role in maintaining particulate matter in suspension.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37887/35968.pdf

Remises en suspension sédimentaires observées en Méditerranée par 2 000 m de profondeur à l'aide de pièces à particules
Provedor de dados: 5
Autores: Crassous, Philippe; Khripounoff, Alexis; Larosa, Jacques; Miquel, Juan-carlos.
Four sediment traps of two different types and two current meters were deployed fixed to two identical moorings, at a depth of 2 000 m, off the coast at Nice, for 70 days between April and June 1987. The particulate flux measured with sediment traps decreased from 1 000 to 95 mg/m2/day during this experiment. The carbonate carbon concentration of the particles also decreased during this period; organic carbon concentrations varied inversely with the flux, increasing from 1.8 to 3.7 % of the particle dry weight. It is concluded that these changes reveal the presence of a deep-sea storm with a significant resuspension of sediment to a height greater than 200 m (distance of the traps from the bottom). By the end of the experiment, identical sediment traps had...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21244/18859.pdf

Diagnostic du vibrio P1 pathogène de la palourde Tapes philippinarum à l'aide d'anticorps monoclonaux et de sondes nucléiques
Provedor de dados: 5
Autores: Viaud, Karine.
Ce rapport, outre un rappel bibliographique sur la maladie de l'anneau brun et une présentation de la méthode de sélection pathogène, et d'identification biochimique de l'agent mentionne les résultats de l'utilisation d'un immunodosage enzymatique (dot-Elisa) et des différentes étapes d'obtention d'une sonde nucléique
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00429/54050/55341.pdf

Fine spore structure of a haplosporidan parasitizing Crassostrea gigas: taxonomic implications
Provedor de dados: 5
Autores: Comps, Michel; Pichot, Yves.
Several cases of haplosporidan infection have been detected recently in PacifiC oysters Crassostrea gigas from Etang de Thau, France. The ultrastructure of the spore, including the surface ornamentation, is described and appears similar to thal of Haplospondium costale. The taxonomie implications of these findings are discussed.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-6077.pdf

Elevage larvaire du loup Dicentrarchus labrax. Standards d'élevage 1990-1991 à la station Ifremer de Palavas
Provedor de dados: 5
Autores: Gasset, Eric.
Au cours de la saison 90-91, 2 cycles d'élevage larvaire de loups ont été effectués à la Station de Palavas. Ces 2 cycles représentent 1 fois 4 bassins de 2 m3 (cycle Lp/Ol/L/91) et 1 fois 2 bassins de 2 m3 (cyae Lp/04/L/91). Cette note a pour but de faire le point sur les normes d'élevage larvaire du loup utilisées au cours de ces élevages.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00342/45342/44805.pdf

Lead and zinc as indicators for atmospheric and riverine particle-transport to sediments in the gulf of lions
Provedor de dados: 5
Autores: Nolting, Rf; Helder, W.
Profiles of 0.1 N HCl leachable Pb and Zn in the sediments of the Gulf of Lions (North West Mediterranean) indicate that the concentrations of these metals are, especially in the vicinity of the triple-overdot Rhone outflow and in the Rhone plume, determined by input from the river. Solid phase Pb and Zn are more than three times higher than their pre-industrial background. At the offshore, deep ( &gt; 2 000 m) stations in the Gulf of Lions, the surface concentration of solid phase Pb and Zn are about twofold enriched compared to background values. The profiles from these deep stations preserve, due to the restricted mobility of Pb and Zn and the lack of bioturbation in the sediment, a historical record of the increased atmospheric deposition of these...
Tipo: Text
Palavras-chave: LEAD; ZINC; CONCENTRATION; SEDIMENTS; GULF OF LIONS.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21264/18875.pdf

Estimation des stocks d'huître japonaise en élevage en 1988, dans le bassin de Marennes-Oléron et aspects méthodologiques
Provedor de dados: 5
Autores: Caryo, Chrystelle.
L'estimation des stocks d'huîtres en élevage dans le bassin de Marennes-Oléron réalisée en 1988 est la cinquième opération annuelle consécutive de ce type. A cette occasion, une comparaison a été réalisée entre deux méthodes de traitement des données de surface ou de longueur d'installation à partir des couvertures photographiques aériennes au 1/10 000ème (surfaces en exploitation) et au 1/1 000ème (taux d'occupation des surfaces en exploitation). Les principaux résultats obtenus lors de cette étude montrent que par rapport à l'année précédente, on constate une relative stabilité des surfaces exploitées. Celles-ci sont en légère régression pour l'élevage à plat, et pratiquement inchangées pour l'élevage en surélévation. Par contre, les densités d'élevage...
Tipo: Text
Palavras-chave: Ostréiculture; Huître japonaise; Crassostrea gigas; Bassin de Marennes-Oléron; Stocks; Surfaces exploitées; Densités; Biomasse; Méthodologie.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00105/21654/19235.pdf

Observations on the feedings habits of calliactis-parasitica (couch, 1842), anthozoa, cnidaria
Provedor de dados: 5
Autores: Chintiroglou, C; Koukouras, A.
Very little was known about the feeding habits of the actinian Calliactis parasitica, which almost exclusively lives on gastropod shells inhabited by anomuran crabs. Observations of behaviour in the field and the coelenteron contents of animals coming from two different ecological zones (infralittoral and circalittoral) in Thermaikos Gulf (North Aegean Sea) showed that C. parasitica is a non-selective omnivorous species which plays an important role in the benthic food web and its diet reflects the faunal composition in these two zones. Basically, this species is a suspension-feeder, although it can also remove food from the sediment by tactile tentacle motion. Complementary, occasional food sources are the remains of the prey of the associated anomurans.
Tipo: Text
Palavras-chave: SEA ANEMONES; FEEDING HABITS; ASSOCIATIONS; AEGEAN SEA.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21375/18975.pdf

Etude par modèles mathématiques de la circulation marine entre Quiberon et Noirmoutier
Provedor de dados: 5
Autores: Lazure, Pascal; Salomon, Jean-claude.
The marine circulation between Quiberon and Noirmoutier is due to the combined effects of the tides, winds and density circulation induced by the discharges of the Vilaine and Loire rivers. These effects have been studied with two mathematical models, a two-dimensional (vertically integrated) one and a three-dimensional one. The tide has been shown to be the most important phenomenon at short time scale. Its effects are locally variable mainly because of topographic control. The tidal influence decreases significantly at long time scale and the residual circulation depends mainly on meteorological and hydrological conditions. The wind-induced circulation is mostly three-dimensional and appears locally to be the main dynamic process. During high flood, the...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00245/35578/34111.pdf

Bilan des perturbations phytoplanctoniques sur les côtes morbihannaises en 1990
Provedor de dados: 5
Autores: Treguier, Cathy.
232 analyses d'eau et 125 tests biologiques de toxicité ont été effectués dans le cadre du réseau de suivi des perturbations phytoplanctoniques (REPHY) en période d'alerte (du 10 avril 90 au 10 septembre 90). L’ "épisode" Dinophysis a été très sévère cette année touchant presque tout le département. Les concentrations en Dinophysis dans l'eau ainsi que les teneurs en toxine des coquillages ont atteint des valeurs importantes entraînant de nombreuses fermetures de secteurs conchylicoles. Toutefois, les améliorations apportées cette année au réseau de suivi ont permis d'accentuer son efficacité. Enfin une meilleure diffusion de l'information a contribué à assurer la protection du consommateur.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00119/23062/20900.pdf

Influence of turbulence and turbidity on growth and survival of laboratory-reared bivalve larvae
Provedor de dados: 5
Autores: Seaman, Matthias; His, Edouard; Keskin, Mehmet; Reins, Torsten.
Laboratory-reared larvae of mussels (Mytilus galloprovincialis ) were incubated with and without sediment in a novel turbulence-producing machine. The sediments used were fine silt from the Gironde Estuary and from the German Wadden Sea. Larvae incubated in turbulence without sediment, and in suspended sediment concentrations similar to in situ conditions had growth rates which did not vary significantly from those of the controls. The growth rates of larvae incubated in 5 to 20 g/l of sediment were reduced by 20 to 50%. Survival was lower in larvae incubated with sediments than in turbulent and non-turbulent controls, but it was not correlated with sediment concentration. The results indicate that the mechanical effects of turbulence and turbidity on...
Tipo: Text
Palavras-chave: Controlled conditions; Environmental factors; Growth; Mollusc culture; Rearing; Survival; Turbidity; Mytilus galloprovincialis.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00038/14902/12228.pdf

Evaluation de l'état des peuplements Benthiques du haut-fond St Julien (Région de St Tropez) campagnes Cyana de mars et Juin 1990
Provedor de dados: 5
Autores: Harmelin, Jean-georges; Zibrowius, Helmut; Arnoux, André; Romana, Louis.
En 1987 G. RIVOIRE avait observé une mortalité anormale des octocoralliaireS et la disparition de la faune vagile de certains versants Est des fond rocheux situés entre 50 et 150 mètres de profondeur. Cette observation était effectuée sur les côtes françaises de Provence et de la Côte d'Azur. Des plongées réalisées par Cyana en Mars et Juin 1990 ont permis de confirmer scientifiquement ces résultats sur les tombants situés sur les hauts fonds de St Julien, au large de St Tropez. Les observations indiquent par ailleurs la possibilité d'un événement catastrophique. Deux prélèvements de l'éponge Reniera plana effectués de part et d'autre du haut fond ont permis d'analyser les teneurs en métaux lourds et PCB. La comparaison qualitative et quantitative des...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00132/24319/22318.pdf

The role of large biogenic particles in the transport of atmospheric pollutant pb down to north-atlantic sediments
Provedor de dados: 5
Autores: Lambert, Ce; Veron, A; Buatmenard, P; Heyraud, M; Grousset, F; Simpson, W.
Pb concentrations were measured on large particles (diameter &gt; 10-mu-m) at seven stations in North East Atlantic waters, and Pb isotopic composition was determined on one sediment core (Fluxatlante cruise, 1985). In intermediate and deep waters, Pb concentrations on large particles are about 0.5 ng l-1, less than 1 % of total lead and show a close correlation with Pb-210. This suggests that lead is primarily scavenged from the dissolved Pb pool in surface waters with little further scavenging in deep waters. Such an interpretation is supported by our observation of stable Pb isotopic ratios in surficial sediments which suggests that a rapid coupling exists between the atmospheric input of Pb to surface waters and its delivery to the water-sediment...
Tipo: Text
Palavras-chave: PB; MARINE POLLUTION; NORTH ATLANTIC; BIOGENIC CYCLING.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21280/18889.pdf

Planktic foraminifera as north-atlantic water mass indicators
Provedor de dados: 5
Autores: Ottens, Jj.
Distribution patterns of planktic foraminifera, collected from Eastern North Atlantic surface waters during August and September 1986, are related to measured hydrographical parameters. Three main water masses, Subpolar Water (SW), the North Atlantic Current (NAC), and the Azores Current (AC) are all characterized by distinct faunal assemblages. A fourth, distinct water mass is here referred to as North Atlantic Transitional Water (NATW). The distinction, based on species clusters, between the NATW and the southern AC, is less evident than between the NATW and the northern SW and the NAC. This is the combined result of low absolute frequencies, a high number of species and a superimposed complex hydrography in the southern water masses. The oceanic frontal...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21245/18860.pdf

Ultrastructure et activite de la glande salivaire de Patella safiana LMK (Mollusque, Gasteropode)
Provedor de dados: 5
Autores: Benmeradi, S; Benmeradi, N.
The ultrastructural study of the Patella safiana salivary gland reveals two types of cells: the dark cells containing round-shaped secretory vesicles of lamellar structure and the light cells which have homogenous and fibrous secretory granules that are star-shaped sometimes. The two types of cells have the cytological characteristics of high proteosynthetic activity cells.
Tipo: Text
Palavras-chave: Patella safiana; Gastropoda; Biochemical analysis; Secretory organs; Cytology; Cells; Marine molluscs; Enzymes; Ultrastructure.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1712.pdf

Current status of the French intensive larval rearing techniques for sea bass (Dicentrarchus labrax) &amp; sea bream (Sparus auratus)
Provedor de dados: 5
Autores: Chatain, Beatrice; Coves, Denis.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00364/47486/47777.pdf

Stades pigmentaires de la civelle Anguilla anguilla (L.) dans les estuaires de la Loire et de la Vilaine
Provedor de dados: 5
Autores: Grellier, Patrick; Huet, Jerome; Desaunay, Yves.
Ce catalogue illustre et complète le travail de référence de ELIE et al. (1982). Il vise à venir en aide aux biologistes amenés à comparer leurs descriptions qualitatives et quantitatives des échantillons de civelles.
Tipo: Text
Palavras-chave: Pigmentation; Stades Larvaires; Civelle.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00085/19614/17254.pdf

L'élevage de la crevette tropicale d'eau douce
Provedor de dados: 5
Autores: Griessinger, Jean-michel; Lacroix, Denis; Gondouin, Philippe.
This book represents a two year study by a team of French biologists to collect, summarise and present the experience and knowledge gained in the rearing of the giant freshwater prawn, not only in the French overseas territories but also in the main countries which are developing this culture. This document comprises four parts :  - The first describes the world market. The prawn rearing is already an economic reality in the tropical world, the United States and in Europe. -  The second on shows that, although the culture techniques are quite complex, production systems can be adapted to local conditions and markets. - The third part is a practical guide, both for investors and farmers, giving all necessary data to start-up and monitor a project in the...
Tipo: Text
Palavras-chave: World market; Tropical zone; Practical guide; Production  systems; Biology; Prawn rearing; Crevette tropicale d'eau douce; Exploitation; Production; Biologie; Macrobrachium rosenbergii; Guide pratique; Aquaculture.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-639.pdf

Effect of stripping frequency on turbot spawn quality.
Provedor de dados: 5
Autores: Fauvel, Christian; Omnes, Marie-helene; Suquet, Marc; Normant, Yvon.
In production operations the application of daily examination of each female of broodstock should be a determinant progress in hatchery management in terms of fry output.  The eggs expelled shortly after ovulation by means of a systematic fivefold a week stripping attempt of females, presented a high viability rate (72%) compared to that of eggs collected twice a week (46%) whereas the treatments did not have any effect on female fecundity.  Increase of the stripping rhythm brought the hatching rates and broodstock fertilities respectively from 11% to 35% and from 20,000 to 65,000 larvae/kg of spawning female. The enhancement of egg quality and of the resulting larva production is discussed.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00170/28129/26346.pdf

Use of the kriging method for the stock assessment of oysters in the Chesapeake Bay
Provedor de dados: 5
Autores: Bacher, Cedric; Chai, Ai-ling; Goulletquer, Philippe.
The krlging technique Is now employed ln more and more fields: mlnlng (Journel. 1977), hydrology (Delhomme, 197B; Shamsi et al" 1988; Dingman et al" 1988), fishery (Conan, 1989) and ecology (Robertson, 1987; Schotzko and O'Keeffe, 1989, 1990). Recent developments of the mathematlcal theory tend to extend the number of applications where Il may be used. Baslcally defined for the case of a statlonary spatial process, It now encompasses more general processes assuming less and less strong hypotheses (Intrinsic hypothesls, Intrlnsic generalised hypothesis, disjunctive krlglng). In its most general formulation, it allows to study the spatial structure of a process including large scale or local trends. The basic idea remains to take Into account the spatial...
Tipo: Text
Palavras-chave: Kringing technique; Stock assessment; Oysters; Crassostrea virginica; Chesapeake Bay.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00200/31110/29518.pdf

Approches de la capacité trophique des écosystèmes conchylicoles : synthèse bibliographique
Provedor de dados: 5
Autores: Heral, Maurice.
The different methods of estimating the trophic capacity of ecosystems cultivated by oyster farming and mussel farming are introduced by ascending order of complexity. Thus, production yields make it possible to monitor whether the size of the farmed stock is being successfully matched with the availability of food. Moreover, the study of annual production farmed stocks has made it possible to create comprehensive dynamic models that show the maximum annual production that a given ecosystem can support. These last two approaches assume the environment to be constant. The study of trophic links that can simulate growth performance of molluscs can be classified according to two criteria, (i) their level of complexity in combining biology and physics, (ii)...
Tipo: Text
Palavras-chave: Ecosystèmes conchylicoles; Conchyliculture; Capacité trophique.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-3052.pdf

Estimation de la qualité biologique de l'eau sur le littoral atlantique du Sud-Ouest de la France à l'aide des tests de croissance des larves de Mytilus edulis
Provedor de dados: 5
Autores: His, Edouard; Quiniou, Francoise.
The quality of the seawater off the southwestern Atlantic coast of France was assessed by studying the effects of the water from three sites (Arcachon Bay, Mimizan and Capbreton) on larvae of the mussel (Mytilus edulis). Mussel larvae were raised in water samples taken at all three sites on March 12, 1991 and larval growth was monitored during 10 days. The results indicate that the water quality was best in the Bay of Arcachon, followed by Mimizan, whereas the water off Capbreton was possibly contaminated by pollutants.
Tipo: Text
Palavras-chave: Croissance; Qualité de l'eau; Développement larval; Pollution; Mytilus edulis; Growth; Water quality control; Larval development; Pollution; Mytilus edulis.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00038/14903/12229.pdf

Troubles d'origines biotiques et abiotiques des macrophytes marins d'intérêts alimentaire et industriel
Provedor de dados: 5
Autores: Campello, Francois.
Ce catalogue regroupe les troubles connus qui peuvent affecter les macrophytes cultivées dans le monde, appartenant aux familles des Phéophycées et des Rhodophycées. Des virus, des bactéries, des champignons, des épiphytes et des endophytes divers, ainsi que des agents encore non identifiés et des substances chimiques, naturelles ou dues à l'activité humaine, peuvent compromettre la qualité et les rendements en algoculture.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00104/21558/19137.pdf

L'aide communautaire au secteur aquacole français 1986-1990
Provedor de dados: 5
Autores: Antona, Martine.
Le présent article aborde principalement les règlements 2908/83 et 4028/86 des mesures structurelles relatives à la pêche et à l'aquaculture. Néanmoins des comparaisons seront faites avec les règlements de type agricole (encart 2) qui participent également au financement de l'aquaculture marine (2) : de 1986 à 1989, 113 projets français d'aquaculture ont été financés dans le cadre des règlements "agricoles" 797/85 et 1760/87. [OCR NON CONTRÔLE]
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-4102.pdf

La pêche locale réunionnaise
Provedor de dados: 5
Autores: Biais, Gerard; Taquet, Marc.
A local fishery is carried out by small boats in the immediate vicinity of the island of Réunion (Indian Ocean). Practising conditions, species marketed, fishing gears and boats are described. Following the historical trend in production since 1949, the 1988 situation is detailed. Data result from a one year sampling survey on landing spots of which methodology is annexed. Investigations are continued by an economical analysis of the fishery showing great possibilities of incarne disparities among the fishing boats.
Tipo: Text
Palavras-chave: PÈCHE LITTORALE; LA REUNION; OCEAN INDIEN; ESPECES; ENGINS; PROOUCTION; ECONOMIE.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00104/21496/19077.pdf

Lenght-weight relationship adapted to freshwater prawn Macrobrachium rosenbergii morphological types
Provedor de dados: 5
Autores: Mer, Gilles; Falguiere, Jean-claude; Lacroix, Denis; Gondouin, Philippe; Dutto, Gilbert.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00040/15169/12506.pdf

Hydrodynamique cotiere: Couplage imagerie thermique satellitaire-modeles numeriques. Application a la Manche
Provedor de dados: 5
Autores: Jegou, A M; Salomon, J C.
Thermal infrared imagery of NOAA AVHRR is compared to results obtained by a 2-D numerical model of the English Channel. This model describes, theoretically, the movement of water bodies at time scales ranging from a few minutes to several months. Remotely sensed data has been compared with results obtained by the model predictions in order to evaluate the accuracy of the latter. Hydrodynamic modelling and thermal infrared imagery used in conjunction with each other are found to provide useful information and accurate interpretation of the data. Thermal infrared imagery is found to be an effective tool for the identification of instantaneous current velocities, but also for the detection of large-scale structures induced by long term advective processes.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37880/35961.pdf

Connaissance de la matière première et étude des barèmes de traitement thermique de cuisson sous-vide du poisson en cycle court
Provedor de dados: 5
Les industries alimentaires transforment des matières premières de qualité très variable. Leurs produits sont en majorité destinés à une consommation "grand public", ce qui implique des délais de conservation longs, en général supérieurs à 6 jours, et pouvant aller jusqu'à 42 jours sur dérogation ministérielle. Actuellement cet aspect est primordial pour les transformateurs de poissons. En effet ceux-ci disposent généralement d'une matière première de qualité très inégale, pour des raisons tenant à la fois de la diversité biologique présentée par les poissons, et de la qualité du traitement du poisson après la capture. Les industriels doivent donc pasteuriser leurs produits, pour en garantir la salubrité (absence de pathogénicité), et assurer à leur...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00004/11564/8155.pdf

Chemical evidence for advection of interstitial fluid in the sedimentary series of the barbados accretionary complex (leg-110)
Provedor de dados: 5
Autores: Blanc, G; Boulegue, J; Gieskes, Jm.
We report here our findings on the chemistry of methane, manganese and chloride dissolved in the interstitial water of the Barbados accretionary complex. The decollement separating the subduction plate from the accretionary wedge is geochemically characterized by high methane and manganese and low chloride concentrations relative to buried seawater. Sandstone layers occurring below the decollement and the compressive structures recording some of the earliest effects of offscraping are also characterized by similar anomalies. A fluid with the same characteristics is also found six kilometres to the east of the deformation front within the oceanic plate. High manganese concentration and low chlorinity also occur in the pore water of the offscraped sediment...
Tipo: Text
Palavras-chave: BARBADOS ACCRETIONARY COMPLEX; INTERSTITIAL WATER; CHEMICAL COMPOSITION; ADVECTION; DIAGENESIS.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21262/18873.pdf

Les mécanismes de décision dans la gestion des pêches. Le cas d'un port méditerranéen
Provedor de dados: 5
Autores: Galle, Marion.
Le rapport présent constitue la première étape d'une recherche méthodologique dont l'objectif est de formaliser l'évolution d'un processus de décision dans une zone géographique donnée, en montrant les relations étroites qui s'établissent entre les discours réglementaires et tous les processus informels qui les précèdent ou en découlent. La problématique générale part du constat qu'il existe dans les faits un décalage entre les conceptions que les scientifiques, les instances de décision ou les pêcheurs eux mêmes ont des contraintes et des décisions à prendre en matière de pêche d'une part, et la manière concrète dont sont appliquées les décisions d'autre part. Dans le cas de Sète, l'application plus ou moins rigoureuse du système réglementaire existant...
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-4148.pdf

Chemiluminescence analysis of the activity of Pecten maximus hemocytes stimulated with zymosan and host-specific Rickettsiales-like organisms
Provedor de dados: 5
Autores: Le Gall, G; Bachere, Evelyne; Mialhe, Eric.
During a study of Rickettsiales-like organisms (RLO) in Pecten maximus gill, histological observation of free RLO in hemoclymph led us to consider interactions between the pathogen and the hemocytes. Firstly, the production of oxygen radicals by hemocytes was established using a luminol-enhanced chemiluminescence method with zymosan axs stimulant. The effects of serveral inhibitors of oxidative metabolism were investigated. The internalization of RLO into hemocytes was demonstrated by electron microscopy but was not related to chemiluminescent activity. The possible involvement of RLO acid phosphatase as the inhibitor of respiratory burst was assessed.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-2759.pdf

La "malaïgue" de l'été 1990 dans l’étang de Thau
Provedor de dados: 5
Autores: Pichot, Paul; Juge, Claude; Guillou, Jean-louis.
In summer 1990, Thau, a Mediterranean lagoon was affected by a dystrophic crisis. An aerial survey was performed to observe polluted areas. The analysis of the main environmental water conditions have shown that suspended organic matter plays an important part in the development of this dystrophic crisis.
Tipo: Text
Palavras-chave: Crise dystrophique; Oxygène; Matière organique; THAU; Méditerranée; Dystrophic crisis; Oxygen; Organic matter; Mediterranean lagoori.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00432/54333/58906.pdf

In vitro culture of mollusc hemocytes. Functional study of burst respiratory activity and analysis of interactions with protozoan and procaryotic pathogens
Provedor de dados: 5
Autores: Boulo, Viviane; Hervio, Dominique; Morvan, Annie; Bachere, Evelyne; Mialhe, Eric.
The chief importance of hemocytes as immune effectors in molluscs has led to develop researches for in vitro culture. The chemiluminescence technique has been used to estimate the phagocytosis capacity of Crassostrea gigas hemocytes according to different culture media and times. Sea water was used as a basic medium. Additives, such as antibiotics or glucose and buffers, such as Tris or Hepes, were tested as weIl as artificial sea water. Hemocyte chemiluminescence activities were recorded at t=o in relation to the medium composition. The highest values were observed when hemocytes were kept in sea water without any modification. Whichever medium, chemiluminescence activity was substantially decreased when hemocytes were previously kept in vitro for a few...
Tipo: Text
Palavras-chave: Crassotrea gigas; Oyster; Bonamia ostreae; Pathogens; Molluscs; Hemocytes.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-4115.PDF

Un modèle spatial des taux d'émersion appliqué au domaine intertidal de la baie du Mont Saint-Michel
Provedor de dados: 5
Autores: Madec, V.
Studies of the functioning of intertidal ecosystems are widely based on analyses of the biological rhythms due to sea movements, estimating an average rate for emersion at all points of the foreshore. This estimate supplies an explicative parameter related to distribution of animal and vegetable species. We present a spatial model for estimation of emersion rates based on the processing of geocoded data within a geographical information system (GIS).
Tipo: Text
Palavras-chave: INTERTIDAL ZONE; EMERSION RATES; SPATIAL MODELING; GEOGRAPHICAL INFORMATION SYSTEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00103/21380/18980.pdf

Qualité bactériologique des zones conchylicoles en Charente-Maritime.
Provedor de dados: 5
Autores: Ifremer, Laboratoire Côtier DEL - La Rochelle; Ifremer, Laboratoire Côtier DEL - La Tremblade.
Le Réseau national de surveillance microbiologique mis en place par l'Ifremer en 1989 permet de porter une appréciation sur la salubrité des zones conchylicoles. Les indicateurs de contamination sont les coliformes fécaux. Les résultats sont exprimés en nombre le plus probable (NPP) de coliformes fécaux (CF) par 100 grammes de chair de coquillages et de liquide intervalvaire. La fréquence de prélèvement est mensuelle et l'effort d'échantillonnage (nombre de points de prélèvements par secteur) est proportionnel à un indice de risque qui tient compte à la fois de la qualité bactériologique estimée du secteur et de sa production coquillière. Le positionnement des points de prélèvement est de type systématique.
Tipo: Text
Palavras-chave: Réseau Surveillance; Microbiologie; Bacteriologie; Zones conchylicoles; Département Charente-Maritime.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00146/25742/23848.pdf

Valorisation de l'alose par la transformation
Provedor de dados: 5
Autores: Bruiant, Laure.
The aim of this study of the shad Vi/osa sp.) is to determine the flesh's characteristics in relation with fishing are as and catching periods as weIl as the best storage conditions of the fresh and frozen fish, in order to predict the resulting changes with the eventual aim of increasing the market consumption. Chemical, bacteriological and sensorial analysis have been assessed in order to follow the change in the product during the storage. The frozen fish will be analysed until July 1992. Some tests to rem ove bones, using a machine designed for carp fillets, have been done with the aim of adjusting the process to the shad. At the end of the study we have given advice to the fishermen concerning the conditions necessary to keep the fish fresh and we...
Tipo: Text
Palavras-chave: Alose (alosa sp.); Valorisation; Transformation; Désarêtage.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00120/23099/20948.pdf

Oyster culture in European countries
Provedor de dados: 5
Autores: Heral, Maurice; Deslous-paoli, Jean-marc.
Three species of oysters have been or are cultivated in Europe: Crassostrea angulata, C. gigas, and Ostrea edulis. If we follow the taxonomic critera of Grassé,  the European oysters belong to the group of Mollusca, class of Lamellibranchia or Bivalves, order of Filibranchia, family Ostreidae with two genera: C. angulata (Lamarck), Portuguese, cupped oyster; C. gigas, (Thunberg), Japanese or Pacific, cupped oyster; Ostrea edulis (Linné), fiat European oyster.  Some authors think that C. gigas and C. angulata belong to the same species. lndeed, Ranson stated that the characteristics of the larvae are the same, and Menzel obtained viable hybrids (F2) between these two oysters. AIso, Buroker et al. in studying the genetic variations of proteins and enzymes of...
Tipo: Text
Palavras-chave: European countries; Pathology; Methods of culture; Recruitment; Fishery; Salinity and temperature tolerances; Larval development; Growh; Biology; Oyster culture.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-3038.pdf

Mass mortalities in hatchery-reared sea bass (Lates calcarifer) larvae associated with the presence in the brain and retina of virus-like particles
Provedor de dados: 5
Autores: Renault, Tristan; Haffner, Philippe; Baudin Laurencien, F.; Breuil, Gilles; Bonami, Jean-robert.
Since 1986, an unknown disease causing high mortalities appeared in Ifremer's Pacific OceanologicaI Center (Tahiti) nursery of sea bass (Lates calcarifer). opathology of lesions involving both centraI nervous system (CNS) and eye retina, and the tuation exists in South-East Asian countries (Indonesia, Philippines, Malaysia and Singapore), and in northem Australia.  This paper describes the histmorphology of a new fish virus, which is believed to be the aetiological agent of high mortalities among sea bass larvae.
Tipo: Text
Palavras-chave: Virus like; Lates calacrifer; Hatchery; Mortality.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-2885.pdf

Growth and mortality of the European oyster Ostrea edulis in the Bay of Arcachon (France)
Provedor de dados: 5
Autores: Robert, René; Borel, Michel; Pichot, Yves; Trut, Gilles.
A study of the growth and mortality of the European oyster Ostrea edulis , including the effects of Marteilia refringens and Bonamia ostreae , was carried out in three oceanic areas in the Bay of Arcachon from May 1989 to February 1991. One-year-old spat, free from disease were used for the trials. Six months after beginning the trials, Marteilia refringens had severely infested the cultures. Although Bonamia ostreae was found during the first year, the rate of infestation was low. In the second year bonamiasis increased and high mortality (&gt; 60%) occurred in Ostrea edulis populations. Although the growth of the oysters was good, their condition index was generally poor. Moreover, shell perforations by Polydora sp. were observed. The influence of...
Tipo: Text
Palavras-chave: Ostrea edulis; Pathologie; Mortalité; Croissance; Reproduction; Composition biochimique; Bassin Arcachon; Ostrea edulis; Pathology; Mortality; Growth; Reproduction; Gross biochemical composition; Bay of Arcachon.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00015/12600/9477.pdf

Contraintes du milieu sur les populations de Donax trunculus L. et Donax venustus Poli du littoral atlantique marocain
Provedor de dados: 5
Autores: Guillou, Jacques; Bayed, A.
Populations of Donax trunculus and Donax venustus were sampled along the Moroccan Atlantic coast from Tanger to Tarfaya (Cape Juby) in 1986 and 1987. All the investigated beaches are surf-exposed and belong to the dissipative system. The geographical distribution of the dominant species D. trunculus appears to be obviously influenced by swell-related hydrodynamics. This phenomenon is controlled by the slope on the nearshore side of a critical 30 m depth, and can be expressed in terms of the distance from the coast of the corresponding isobath. A model of adult density distribution is based on this parameter. When the distance in question is less than 2 km, Donax are absent. The maximal densities observed are on the whole weak and suggest the limiting...
Tipo: Text
Palavras-chave: Donax trunculus; Donax venustus; Moroccan Atlantic coast; Geographical distribution; Hydrodynamism; DONAX-TRUNCULUS; DONAX-VENUSTUS; MOROCCAN ATLANTIC COAST; GEOGRAPHICAL DISTRIBUTION; HYDRODYNAMISM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00323/43396/43067.pdf

Composition and fate of organic-matter in submarine cave sediments - implications for the biogeochemical cycle of organic-carbon
Provedor de dados: 5
Autores: Fichez, R.
The biochemical composition of the sediments in a Mediterranean submarine cave (Marseille, France) was studied, and a budget for the biogeochemical cycle of organic carbon was calculated. Chloropigment and lipid levels were markedly lower in sediments from the dark inner section of the cave compared to the twilight outer section. These decreased levels were related to the decrease in the vertical inputs of particulate organic matter. Lower decreases were recorded in the sediment content of other organic constituents (organic carbon, organic nitrogen, carbohydrates, proteins). The analysis of carbohydrate and protein extracted from sediments (NaOH 1 N, 24 h, 4-degrees-C) yielded no significant information, demonstrating the ambiguous significance of such a...
Tipo: Text
Palavras-chave: ORGANIC MATTER; BIOGEOCHEMISTRY; EARLY DIAGENESIS; BUDGET; CAVE.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21265/18876.pdf

Escolha das normas e das tecnicas de producao de camaroes de aqua doce Macrobrachium rosenbergii
Provedor de dados: 5
Autores: Lacroix, Denis.
A conferencia nao tratou de uma explanacao teorica e exaustiva sobre a escolha dos metodos e das normas tecnicas, ela foi baseada em exemplos reais vividos pelo autor e obtidos a partir de experiencias de campo.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00041/15178/12515.pdf

Surveillance écologique et halieutique. Site de Flamanville. Année 1988
Provedor de dados: 5
Autores: Arzul, Genevieve; Erard-le Denn, Evelyne; Quintin, Jean-yves; Piriou, Jean-yves; Dreves, Luc; Martin, Jocelyne; Miossec, Dominique.
Surveillance n°6 of Flamanville power-plant takes in account studies between march 1988 and september 1988. Hydrology, microbiology, phytoplancton, zooplancton, intertidal phytobenthos, intertidal and sublittoral zoobenthos, fishing are studied. The year 1988 is the third year of working for this power plant.
Tipo: Text
Palavras-chave: Surveillance; Power plant; Fishing; Benthos; Pelagos; Surveillancce; Centrale nucléaire; Halieutique; Benthos; Pelagos.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-6470.pdf

Rationalisation de l'échantillonnage biologique pour l'évaluation des stocks des pêcheries marines en golfe de Gascogne
Provedor de dados: 5
Autores: Pelletier, Dominique; Beucher, Helene; Chevalier, Robert; Laurec, Alain; Alperi, J.; Pereda, P.; Guichet, Roger; Dupouy, Herve; Peronnet, Isabelle.
The aim of the project "rationalization of biological sampling for stock assessment of marine fisheries in the bay of Biscay" is to perform statistical methods and computer programs allowing to test prognoses and diagnoses based on estimates of fishing mortalities, recruitments, yields per recruit, and the "gain-loss" function. The project gathers the laboratories of the community working on the Bay of Biscay fisheries, namely - Santander in Spain (1. E. 0) - La Rochelle and Lorient in France (IFREMER). A descriptive study has been carried out. The prepared documents contain a description of the procedures used to collect the information, by each of the laboratories involved, on: - landings - biological samplings. More comprehensive data have been gathered...
Tipo: Text
Palavras-chave: Capture; Marine biology; Fisheries; Megrim; Monk; Hake; Data collection; TAC; Bay of Biscay; Stock assessement; Sampling; Statistics; Capture; Biologie marine; Halieutique; Cardine; Baudroie; Merlu; Collecte de données; TAC; Golfe de Gascogne; Evaluation des stocks; Echantillonnage; Statistiques.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-3621.pdf

Estimation of sedimentation rates in the Bay of Mont Saint-Michel (France) by super(210)Pb dating technique. A pilot study
Provedor de dados: 5
Autores: Berger, G W; Caline, Bpr.
Three cores taken in the tidal flat of the Bay of Mont Saint-Michel were dated with two different methods, one involving use of the naturally-occurring isotope super(210)Pb, the other using a man-made super(137)Cs isotope. For two of the cores it was possible to calculate sedimentation rates. In these cores the data obtained with the two different methods agreed well: sedimentation rates of 0.39 plus or minus 0.08 ( super(210)Pb method) resp. 0.48 cm/y ( super(137)Cs method) were found in one core; and of 0.47 plus or minus 0.07 and 0.40 cm/y in the other. In the third core no reliable sedimentation rate could be calculated, although the Cs data indicate that the sedimentation rate is in the order of 5 cm per year. These data are in good agreement with...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37890/35971.pdf

Etude de l'impact du stock d'huîtres et des mollusques compétiteurs sur les performances de croissance de Crassostrea ggias, à l'aide d'un modèle de croissance
Provedor de dados: 5
Autores: Bacher, Cedric.
A model coupling biological and hydrodynamical processes is used in order to study the influence of the amount of cultivated oysters (Crassostrea gigas) on growth performance in the Bay of Marennes-Oléron. The model is based on an energetic budget equation of a mean oyster and on a transport equation of particulate organic and inorganic matter through 12 spatial boxes. Sensitivity analysis is performed and allows computation of the impact of the distribution of oysters among the boxes on the growth performance of a mean oyster in each box. Il is shown that, mainly in the south of the bay, individual growth is affected by the increase in the stock. The same approach also shows that the response of individual growth to the amount of natural benthic...
Tipo: Text
Palavras-chave: Modélisation; Modéle croissance; Compétiteurs; Crassostrea gigas; Stocks huîtres.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-3053.pdf

Méthodologie de l'étude de la sélectivité des culs de chaluts
Provedor de dados: 5
Autores: Portier, Marcel.
Les méthodes utilisées pour chiffrer la sélectivité des chaluts sont analysées, leurs avantages et inconvénients comparés. Les facteurs pouvant influer sur la valeur des coefficients de sélectivité mesurés sont explicités. Une étude bibliographique complète le travail et permet d'apprécier les incertitudes qui demeurent tant dans le choix de la méthode la meilleure que dans la mesure qu'elle permet.
Tipo: Text
Palavras-chave: Sélectivité; Chalut.
Ano: 1991
URL: https://archimer.ifremer.fr/doc/00502/61409/65091.pdf

Oyster adenytate energy charge: response to levels of food
Provedor de dados: 5
Autores: Moal, Jeanne; Le Coz, Jean-rene; Samain, Jean-francois; Daniel, Jean-yves; Bodoy, Alain.
Adenylatc Encrgy Charge (AEC) values of Crassostrea gigas (9 and 18 months old) cultured in ponds in Marennes-Oléron Bay (Atlantic coast, France) are reported. Two ponds were loaded with two different initial oyster biomasses in order to obtain different food conditions. The growth of oysters was different in the two ponds which corroborated the effectivences of attaining different food conditions. AEC level was different depending on the pond and was therefore related to food availability per unit oyster biomass. Well-fed oysters exhibited greater AEC values than poorly-fed oysters, throughout thc study. Information on nutritional situations for wild or cultured populations can therefore be obtained by AEC. In cach pond, the seasonal AEC variations were...
Tipo: Text
Palavras-chave: Charge énergétique adénylique; Crassostrea gigas; Nutrition; Nucléotides; Adenylate energy charge; Crassostrea gigas; Food; Nucleotides.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00038/14882/12202.pdf

Evaluation des rejets d'espèces commerciales. Théorie et application aux pêcheries multispécifiques du golfe de Gascogne et de la mer celtique
Provedor de dados: 5
Autores: Peronnet, Isabelle.
Du point de vue de la gestion des stocks halieutiques l'estimation des rejets des captures commerciales apparaît comme un maillon indispensable pour une connaissance sans biais du diagramme d'exploitation d'une flottille et pour une évaluation précise du recrutement.  Une estimation périodique de ces rejets s'impose, d'autant que la quantité d'individus rejetée dépend non seulement du maillage utilisé, de la taille marchande en vigueur, de la zone fréquentée par les navires (les juvéniles, donc les rejets, peuvent être très abondants en zone côtière, sur les nourriceries), mais surtout du niveau de recrutement, probablement très variable d'une année à l'autre. L'estimation des rejets de jeunes individus doit absolument être prise en compte dans toutes les...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00070/18146/15699.pdf

Ecophysiologie in situ de l'huître Crassostrea gigas dans un milieu estuarien macrotidal (Bassin de Marennes-Oléron-Chapus 1991)
Provedor de dados: 5
Autores: Guezennec, Loïc.
Mon stage s'est déroulé du 29 avril 1991 au 22 juin 1991 au sein du laboratoire U.R.E.A (Unité de Recherche des Ecosystèmes Aquacoles) à la station d'IFREMER La Tremblade. Au cours de ces 8 semaines de stage, il m'a été donné de participer à une manipulation in süu appelée CHAPUS 1991. Mon arrivée à la station coïncidant avec le début des préparations de la manipulation, j'ai pu participer à la totalité de l'expérience in situ ainsi qu'à l'exploitation d'une partie des données La première semaine fut exclusivement consacrée aux préparatifs: préparation du matériel, étalonnage de certains appareils de saisie, pesées de filtres etc ... Les trois semaines qui suivirent (du 7 au 27 mai) furent consacrées à la manipulation in süu proprement dite avec, tout...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00411/52298/53049.pdf

Distribution et évolution saisonnière du cuivre dissous dans un écosystème estuarien macrotidal d'Europe occidentale (estuaire de l'Aule, France)
Provedor de dados: 5
Autores: Bordin, G.
The seasonal variations of total dissolved copper were surveyed during one year (1983/1984) in the Aulne estuary (Western Brittany, France), an ecosystem with a high rate of water renewal. Copper in filtered water samples (after and without acidification) was determined after preconcentration on Chelex 100, and the eluates were analyzed by graphite furnace atomic absorption spectroscopy. The concentrations of free and complexed copper were then plotted versus chlorosity. Globally, the total dissolved copper concentrations tend to decrease with salinity. The role of physicochemical parameters such as pH and suspended matter (adsorption-desorption mechanisms) on dissolved copper content is shown to be significant. With a variable intensity, desorption...
Tipo: Text
Palavras-chave: Cuivre dissous; Métaux à l'état de traces; Spéciation chimique; Écosystème estuarien; Estuaire de l'Aulne (rade de Brest); DISSOLVED COPPER; TRACE METALS; CHEMICAL SPECIATION; ESTUARINE ECOSYSTEM; AULNE ESTUARY (BAY-OF-BREST).
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00103/21377/18977.pdf

Métabolisme de l'huître Crassostrea gigas stockée dans des dégorgeoirs conchylicoles, à différentes densités et saisons
Provedor de dados: 5
Autores: Bougrier, Serge; Masson, Daniel; Geairon, Philippe; Fouche, Dominique; Leroy, Anne; Faury, Nicole; Ratiskol, Jacqueline.
One of the problems faced by oyster farmers in France is the immediate or delayed mortality of oysters in the storage tanks prior to shipping. This may be due to overstocking and/or improper water management. To investigate the problem, experiments were performed in commercial storage tanks stocked with oysters at different densities. The aim of this study was to provide some basic experimental data and guidelines for better handling of oysters prior to shipping
Tipo: Text
Palavras-chave: Physiology; Oyster farmers; Crassostrea gigas; Oysters; Storage tanks; Physiologie; Ostréiculture; Dégorgeoirs; Crassostrea gigas; Huîtres; Bassin stockage.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-3047.pdf

Aménagement industriel du littoral et surveillance de l'environnement: la centrale nucléaire de Gravelines (1975 a 1989)
Provedor de dados: 5
Autores: Le Fevre-lehoerff, G; Woehrling, Daniel.
Studies have been conducted at Gravelines (France) to estimate the effects of construction and then, the operation of a nuclear power plant. These studies take into account diverse sources of stress: the thermal impact ( Delta T = +11 degree C), the chlorination procedures (0.8 ppm) and the mechanical effects (flow rate 240 m super(3)/s). Distinction has been made between impacts occurring within the cooling system and impacts within the thermal plume. The ecological monitoring has been particularly concerned with water, sediment and organic matter, benthic and pelagic organisms. Results of these field studies include a baseline information in terms of physical, chemical and biological measurements and describe a "reference state" with chronological series.
Tipo: Text
Palavras-chave: Centrale nucléaire; Environnement; Impact; Littoral sud de la Mer du Nord.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00267/37862/35943.pdf

Distribution of Cd and Hg in the Bay of Marennes-Oléron
Provedor de dados: 5
Autores: Gonzalez, Jean-louis; Boutier, Bernard; Chiffoleau, Jean-francois; Auger, Dominique; Noel, Joelle; Truquet, Isabelle.
The study of Cd and Hg distribution in the sediments, water and suspended matter of the Bay of Marennes-Oléron provided the opportunity to identify the factors governing the distribution of these two contaminants throughout the bay. On one hand, these elements are associated with the continental inputs from the Charente river which settle on arrivaI at the mouth of the estuary and in the eastern part of the bay. The Cd and Hg present in these deposits are associated with POC, as weIl as with Mn and Fe oxides and hydroxides. On the other hand, a portion of the dissolved inputs is recycled in the bay waters through phytoplankton activity. This mechanism contributes, particularly in the case of Cd, to increased particulate metal fluxes from the water column...
Tipo: Text
Palavras-chave: Baie de Marennes-Oléron; Métaux lourds; Sédiments; MES; Activité phytoplanctonique; BAY OF MARENNES-OLERON; HEAVY METALS; SEDIMENTS; SUSPENDED MATTER; PHYTOPLANKTON ACTIVITY.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00085/19604/17242.pdf

Repartition des mineraux argileux sur le plateau continental Sud-Gascogne
Provedor de dados: 5
Autores: Latouche, C; Jouanneau, J M; Lapaquellerie, Y; Maillet, N; Weber, O.
The southern Biscay shelf is a typical example of a continental margin submitted to a macrotidal regime and the heavy sedimentary fluxes of continental provenance. The aim of this study was to determine the manner in which clay sedimentation is organized on the margin and to evaluate the impact of both river-borne inputs and marine hydrodynamic activity. It was established that the distribution of clay minerals (in the order of frequence: micas, chlorites, illites and smectites) is upset by the interconnection of several sedimentary processes: discontinuous river-borne discharges (richer in smectites); the mixture of newly-arrived material with fine fractions (rich in micas and chlorites) resulting from the reworking of remnant material that represents the...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37889/35970.pdf

Courants residuels de maree dans la Manche
Provedor de dados: 5
Autores: Salomon, Jean-claude; Breton, Marguerite.
A two-dimensional mathematical model of the Channel has been used to reveal tide-related advective physical structures, at synoptic time scales. Results show a complete circulation pattern composed of a nearly axial "river" carrying a water flux of about 27,000 m super(3)/s, for an average tide, from the Atlantic to the North Sea and lateral gyres of various intensities, linked to the topography. The modest velocity of the mean flow makes it probably subject to strong temporal modifications by meteorological forcings. Conversely, some strong gyres may play an important role on the residence time of particles and the local memorization of water mass characteristics.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37883/35964.pdf

Le phytoplancton nuisible des côtes de France. De la biologie à la prévention
Provedor de dados: 5
Autores: Belin, Catherine; Berland, Brigitte; Erard-le Denn, Evelyne; Gentien, Patrick; Grzebyk, Daniel; Marcaillou Le Baut, Claire; Lassus, Patrick; Partensky, Frédéric.
Several phyloplankton species, whelher hloom-forming or not, have caused jish kilts or human intoxications or other nuisances on the coasts of France for the past ten years. The present review considers them under the foltowing aspects: morphology, cytology, physiology, hiochemislry, geographical distrihution, ecological requirements, toxicity and/or nuisances. These are principally the Dinoflagellates Dinophysis spp., Gymnodinium cf nagasakiense (= Gyrodinium cf aureolum) and Alexandrium minutum, and the Prymnesiophyte Phaeocystis spp. .. in addition, Ihree presumahly toxic species which were recently found on the French coasts are examined, namely : the Dinoflageltates Prorocentrum minimum and Gymnodinium spirale and the Silicoflageltate Dictyocha. Toxic...
Tipo: Text
Ano: 1991
URL: https://archimer.ifremer.fr/doc/1991/rapport-4210.pdf

Rapport annuel 1991
Provedor de dados: 5
Vous découvrirez dans ce rapport les principaux résultats des travaux de recherche et de développement technologique obtenus en 1991 par I'IFREMER dans le cadre de ses missions d'organisme de recherche, d'agence d'objectifs et de moyens, et de service public. Nous avons précisé, en 1991, dans le plan stratégique 1991-1995 de I'IFREMER les objectifs que nous nous fixons, les priorités que nous avons choisies ainsi que les moyens qu'il nous faut mettre en oeuvre La publication de ce plan stratégique marque l'aboutissement d'une réflexion prospective qui nous a conduit a nous interroger sur les objectifs de la politique de l'Institut, sur ses priorités et sur ses relations avec ses partenaires. Ce plan est la concrétisation du projet d'entreprise de I'IFREMER...
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-4811.PDF

La pêche maritime à la Réunion ; état et évolution dans les années 80
Provedor de dados: 5
Autores: Biais, Gerard.
Dans les années 80 la pêche réunionnaise a mis à terre annuellement entre 2 000 et 3 000 tonnes d'une valeur d'environ 60 millions de francs. L'activité se répartit principalement entre les abords immédiats de l'île et des zones lointaines exploitées par deux navires congélateurs. Malgré la faiblesse des ressources marines locales, la petite pêche est active mais étant orientée vers les gros pélagiques, elle est confrontée à des difficultés de commercialisation. La grande pêche doit faire face à une détérioration de la ressource sur ses zones traditionnelles de pêche.
Tipo: Text
Ano: 1991
URL: https://archimer.ifremer.fr/doc/00509/62113/66306.pdf

Analyse genetique et physiologique des interactions hote-parasite: le systeme prosorhynchus squamatus - Mytilus
Provedor de dados: 5
Autores: Coustau, Christine.
Tipo: Text
Palavras-chave: Mytilidae; Prosorhynchus squatamus; Host oreferences; Population genetics; Physiology; Parasitic diseases; Mytilus.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/these-1571.pdf

Modélisation de la résistance aux chocs de salinité des postlarves de Penaeus vannamei
Provedor de dados: 5
Autores: Aquacop, Aquacop; Le Moullac, Gilles; Damez, D.
The notion of penaeid shrimp postlarvae quality, which implies a survival potential, is still a subjective parameter. The zootechnical criteria and the visual observations are not sufficient to evaluate the physiological condition of the hatchery reared postlarvae. The resistance of postlarvae to salinity shocks is a representative criteria of their condition. The goal of this study is to present a non-linear regression model at 2 variables (size, salinity) for the P. vannamei postlarvae resistance to salinity shocks. Between the second and the twentieth day after metamorphosis; 5 salinity shocks (20, 15, 10, 5 and 20/00) were tested daily, each one with 50 postlarvae. Survival rates were recorded after 2 hrs. Concurrently, the postlarvae growth in the...
Tipo: Text
Palavras-chave: Salinity; Resistance; Growth; Postlarvae; Penaeus vannamei; Salinité; Résistance; Croissance; Postlarve; Penaeus vannamei.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-4430.pdf

Immunoreactive human growth hormone like peptides in tropical Penaeids and the effect of dietary hGH on Penaeus vannamei larval development
Provedor de dados: 5
Autores: Toullec, J. Y.; Le Moullac, Gilles; Cuzon, Gerard; Van Wormhoudt, A.
Human growth hormone like peptides were present in Penaeus indicus as two molecular forms: one with a molecular weight about 25 kDa which is similar to that of the vertebrate growth hormone and a smaller form of 2 kDa. Quantitative variations of hGH-like peptides in different larval stages of three species of Penaeids (Penaeus vannamei, P. stylirostris, P. indicus) suggest a possible involvement of hGH-like peptides in the development. Human growth hormone (hGH) supplementation in the diet of Penaeus vannamei larvae seems to have a positive effect on the size and on the quality of the animals estimated by their resistance to salinity stress.
Tipo: Text
Palavras-chave: Growth hormone; Growth; P. indicus; P. stylirostris; P. vannamei; Penaeids; Hormone de croissance; Croissance; P. indicus; P. stylirostris; P. vannamei; Pénéides.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-4429.pdf

Etude expérimentale de la prédation de la palourde japonaise, Ruditapes philippinarum, par la dorade royale, Sparus aurata, et le baliste, Balistes capriscus
Provedor de dados: 5
Autores: Robert, René; Parra, René.
Depuis 1988, d'importantes mortalités de palourdes japonaises Ruditapes philippinarum ont été enregistrées, sur de nombreux élevages, dans le bassin d'Arcachon. Pour expliquer celles-ci, l'hypothèse d'une prédation par la dorade royale Sparus aurata et par le baliste Balistes capriscus était avancée. Afin de la vérifier, une étude expérimentale de la prédation de la palourde par ces deux poissons a été réalisée en laboratoire. Si les relations taille prédateurs-taille proies sont plus marquées chez le baliste, les deux espèces sont particulièrement voraces, puisqu'elles s'avéraient capables de consommer, en 24 h, 500 petits naissains et 350 jeunes palourdes de 25 mm de longueur, 50 % à 70 % des proies étant consommés au cours des 6 premières heures....
Tipo: Text
Palavras-chave: Sparus aurata; Balistes capriscus; Ruditapes philippinarum; Palourde; Prédation; Comportement alimentaire; Sparus aurata; Balistes capriscus; Ruditapes philippinarum; Manila clam; Predation; Feeding behaviour.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00015/12601/9479.pdf

Substances et rôle antibactérien de la phycospère marine. Approche bibliographique
Provedor de dados: 5
Autores: Campello, Francois.
The natural antimicrobial substances, active in the marine environment are revised. Three steps marked their attainments. They are expressed by all phylla and variable quantities are quoted along the cycle. They are considered according ta their formula, when known
Tipo: Text
Palavras-chave: Cultues algales; Substances antimicrobiennes; Classification chimique; Conditions naturelles; Algal culture; Antimicrobial substances; Chemical classification Environnemental conditions.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00450/56126/57663.pdf

Sulfate-reducing bacteria [rom mangrove swamps II : Their ecology and physiology
Provedor de dados: 5
Autores: Bharathi, Pal; Oak, S; Chandramohan, D.
Sulfate-reducing bacteria (SRB) have been enumerated and physiologically characterized in three mangrove stations along the Zuari estuary. The substrates for counting were lactate, acetate, propionate, butyrate and benzoate. Benzoate oxidizing SRB were widespread and occurred in numbers up to 6.62 x 10(3)/g dry sediment. The next highest in number were lactate utilizing SRB. On an average there were more propionate and butyrate utilizers than acetate utilizers. While Agasaim at the mouth of the estuary harboured highest number of lactate oxidizers, none were detected at Mirabaug upstream during the samplings. The SRB shared many characteristics with Desulfovibrio desulfuricans, D. desulfuricans aestuarii, D. salexigens, Desulfotomaculum orientis, D....
Tipo: Text
Palavras-chave: Bactéries; Sulfato-réductrices; Estuaire; Sédiments; Mangrove; Mangrove-Bacteria; Sulfate-reducers; Estuary; Sediments.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00323/43395/43103.pdf

Les filières pour l'élevage des moules
Provedor de dados: 5
Autores: Bompais, Xavier.
This handbook has been written for those who want to use long-lines for mussel culture. It describes different types of mussel long-lines, moorings and components: specifications, advantages, disadvantages. It brings up some methods for lay down mooring and also operating mussel long-lines
Tipo: Text
Palavras-chave: France; Mooring lines; Off bottom culture; Mooring systems; Aquaculture techniques; Breeding; Mussel culture.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-1671.pdf

Mesure de la retention de Skeletonema costatum par Ruditapes philippinarum (Mollusque, Bivalve) en fonction de la longueur des colonies algales: Principes methodologiques
Provedor de dados: 5
Autores: Sauriau, P; Baud, Jean-pierre.
Based on Coulter Counter data, a new method is proposed to study the influence of the polymorphous variability in size as well as in shape of the diatom species Skeletonema costatum on the physiological performances of the Manila clam Ruditapes philippinarum . Three conditions are required in order to convert volumetric data determined with the Coulter Counter into metric data, i.e. (1) stability of the pervalvar diameter of the diatom chains, (2) statistical independence between length and pervalvar diameter of the diatom chains, and (3) negligible level of coincident passages through the aperture orifice. Under these three conditions, the mean length (l) of a S. costatum chain can be related to the mean pervalvar diameter (d) of diatom chains and to the...
Tipo: Text
Palavras-chave: Bivalvia; Skeletonema costatum; Bacillariophyceae; Algae; Physiology; Biopolymorphism; Counters; Size; Size distribution; Feeding; Nutrition.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1670.pdf

La dynamique des masses d'eaux et des matieres en suspension en Manche Orientale
Provedor de dados: 5
Autores: Dupont, J P; Lafite, R; Huault, M F; Dupeuble, P A; Brylinski, J M; Guegueniat, P; Lamboy, M; Cabioch, L.
The structuration between nearshore and offshore waters along the macrotidal French Eastern Channel coast is demonstrated by longitudinal and vertical continuous recordings of salinity, temperature, turbidity and fluorimetry. The distribution of suspended particulate matter, one dissolved marker ( super(125)Sb) and particulate markers (such as diatoms) indicates the variability of the waters from coast to open sea. Semidiurnal and semilunar tidal cycles induce the birth and the evolution of frontal structures along shore-lines with or without estuaries. The hydrodynamic consequences for suspended matter fluxes are presented.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00267/37869/35950.pdf

Luminol-dependent chemiluminescence by hemocytes of two marine bivalves, Ostrea edulis and Crassostrea gigas
Provedor de dados: 5
Autores: Bachere, Evelyne; Hervio, Dominique; Mialhe, Eric.
Microbicidal phagocytic function and oxidative metabolism of the hemocytes of 2 oyster species, Ostrea edulis and Crassostrea gigas, were investigated using a luminol-enhanced chemiluminescence (technique. First, experimental parameters adapted to marine bivalve hemocytes were established on hemolymph pools of C. gigas in order to obtain qualitatively and quantitatively homogeneous samples and so to perform statistically comparable assays. The use of Modified Alsever Solution (allowed hemocytes to be kept non-aggregated and in a non-stimulated state until starting the assays. A  number of aliquots of 2 X 10(5) hemocytes with an MAS final concentration of 3.5 % showed high chemiluminescent response after stimulation by zymosan particles A particle:hemocyte...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-2761.pdf

Artificial reefs: Using coal-fired power station wastes constructively for fishery enhancement
Provedor de dados: 5
Autores: Collins, K J; Jensen, A C; Lockwood, Apm.
Large quantities of pulverised fuel ash (PFA) are produced by coal-fired power stations, some of which is currently dumped into the sea. The planned fitting of flue gas desulphurisation (FGD) plant in the UK would produce comparable quantities of gypsum. While a fraction of both these wastes may be used commercially, an alternative, environmentally acceptable, use for the surplus material, the construction of artificial reefs, is being investigated. Possible leaching of heavy metal ions from the reef material is being investigated by direct analysis of the blocks. Additionally there is monitoring of metal levels in reef epibiota and mobile species in comparison to concrete control and natural reef organisms.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37888/35969.pdf

The role of hydrodynamics in environmental studies. The case of tidal seas
Provedor de dados: 5
Autores: Mauvais, J L.
The purpose of this review is to highlight the importance and fields of application of knowledge of currents in environmental studies. Several topics are successively addressed: they include current measurement techniques and the possibilities and applications of existing models (dispersion, sediment transport, primary and secondary production...). Some uses in the field of coastal engineering, water quality management, coastal management, oceanographic studies, etc. are briefly described. The conclusion is that knowledge of currents is a compulsory stage in all coastal environmental studies.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00267/37868/35949.pdf

Une virose de l'huître portugaise (Crassostea angulata LMK)
Provedor de dados: 5
Autores: Comps, Michel; Bonami, Jean-robert; Vago, Constantin; Campillo, Albert.
A viral infection has been observed in the Portuguese oyster Crassostrea angulata during the massive mortalities of 1970-1973. A new type of virus and the viral morphogenesis are described. It is the first virus observed in oysters and linked to an epizooty in this mollusc of great economic importance.
Tipo: Text
Palavras-chave: Infection virale; Crassostrea angulata; Huître; Virologie.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-6084.PDF

Bioconcentration de metaux lourds chez une annelide polychete estuarienne: Nereis diversicolor
Provedor de dados: 5
Autores: Septier, F; Demuynck, S; Thomas, P; Dhainaut-courtois, N.
The concentrations of twelve heavy metals in sediments and in female Nereis diversicolor collected in the estuary of the River Aa and in the little harbour of Boulogne were investigated. Concentration variations which were sometimes considerable were found according to the site, the period of the year, the age of the animals and the cations studied. In addition, numerous intermetal correlations were detected in the nereis. Cytochemical and radioautographic studies revealed that the tegument and the gut were two routes of penetration and storage. Moreover, the gut could be a detoxification and excretory site.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37885/35966.pdf

Essai d'une technique de tri sur post-larves de crevettes en sortie de nurserie et effets sur un grossissement intensif (Penaeus vannamei)
Provedor de dados: 5
Autores: Aquacop,; Boutier, Laurent.
La technique de tri pratiquée avec une maille carrée de 2 mm est bonne et performante par son efficacité et son rendement. Elle est facilement mise en oeuvre sans main-d'oeuvre supplémentaire. Le grossissement des animaux triés montre un effet très positif pour les grandes post- larves avec une réduction de la dispersion et un gain en indice de conversion. Pour les petites post-larves c'est l'inverse avec une augmentation de dispersion et de mortalité dû à une forte présence de queues de lôt.
Tipo: Text
Palavras-chave: Crevette pénéide; Post-larve; Nurserie; Tri; Grossissement; Dispersion.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00446/55751/57412.pdf

Fine cytochemical localization of lysosomal organelles in phagocytic cells of bivalve molluscs.
Provedor de dados: 5
Autores: Auffret, Mathieu; Diouris, M; Herry, A.
Bivalve molluscs possess several types of hemolymph cells (hemocytes), involved in internal defense and other physiological functions. Studies in pathological and experimental conditions have shown their micro- and macrophagic ability. However, the mechanisms of intracellular digestion are incompletely known in these organisms. The lysosomal apparatus of hemocytes was therefore investigated in several species by hydrolase localization with the electron microscope. The cytoplasmic granules of granulocytes displayed a strong acid beta -glycerophosphatase activity. Previous observations had shown that these granules may contain phagocytized material. This indicates that intracellular digestion is achieved in these organelles. Acid beta -glycerophosphatase...
Tipo: Text
Palavras-chave: Bivalvia; Phagocytosis; Cells; Ultrastructure; Haemolymph.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1631.pdf

Architecture et dynamique des dunes tidales. Exemples de la marge atlantique française
Provedor de dados: 5
Autores: Berne, Serge.
Ce travail propose une confrontation entre l'analyse des enregistrements contenus dans la structure interne des dunes sous-aquatiques et les facteurs hydrodynamiques contrôlant leur mise en place et leur évolution. Trois secteurs de la marge atlantique française, caractérisés par des conditions hydro-sédimentaires contrastées, sont étudiés en détail. Les techniques mises en œuvre comprennent des reconnaissances de bathymétrie, imagerie acoustique, sismique haute résolution, prises de vue et observations en plongée, ainsi qu'une instrumentation de certains sites pour mesurer l'effet du courant de marée et de la houle sur le transport sédimentaire. Des prélèvements superficiels à la benne et des carottages à l'aide de vibro-carottiers permettent de calibrer...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00034/14538/11817.pdf

Influence de la charge particulaire sur la filtration d'une population d'huître Crassostrea gigas dans le bassin estuarien de Marennes-Oléron (France) : analyse de deux cycle de marée
Provedor de dados: 5
Autores: Soletchnik, Patrick; Prou, Jean; Heral, Maurice; Barille, Laurent; Razet, Daniel; Guezennec, Loïc.
Filtration of oyster population (100 animals) have been followed during 16 days in raceway systems with continuous recorder of the input and output of the raceway for in situ turbidity and fluorescence. Experimental conditions were fluctuated with particulate matter which varied during a tidal cycle from 40 mg.l-1to 300 mg.l-1. During the same period the phytoplanktonic biomass presented synchronous variations form 7 to 20 µg.l-1 bound with sediment resuspension of phytobenthos and oyster biodeposit created by alternating currents. Filtration of oyster population during a neap tide cycle, variated between 1.2 and 2.8I.h-1 by animal for a calculated retention based on turbidity and between 2.4 and 4.8 l.h-1 by animal for a retention calculated with...
Tipo: Text
Palavras-chave: Marée; Charge particulaire; Marennes Oléron; Physiologie; Filtration; Crassostrea gigas; Huîtres.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-3059.pdf

Les nannoconidés, indicateurs environnementaux des océans et mers épicontinentales du jurassique terminal et du Crétacé inférieur
Provedor de dados: 5
Autores: Busson, G; Noel, D.
Nannoconids are marine, calcareous organisms which played a paramount, lithogenetic role in the formation of Late Jurassic and Early Cretaceous fine-grained, pelagic limestones. These limestones occur as homogeneous units or as successive, rhythmic beds with or without interbedded marly layers. This paper is based upon: a) our own studies of limestones and limestone-marl alternations which have been sampled both in land sections (South-East of France, Central Italy) and in oceanic cores (DSDP leg 1-40-41); b) data from an extensive literature dealing with these facies; c) data from literature on living Dinoflagellates. Most Nannoconids are observed as isolated bodies in sediments. Then their biological affiliation is not evident. We no longer consider them...
Tipo: Text
Palavras-chave: NANNOCONUS; MICRITE; EARLY CRETACEOUS; PALEOENVIRONMENT; TETHYS.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21263/18874.pdf

Application à l'endocrinologie des mollusques des techniques de séparation par HPLC, d'immunodosage et de PCR
Provedor de dados: 5
Autores: Lardans, Vinca.
Dans le cadre de ce stage, deux aspects de l'étude ont été abordés: - Un premier point, abordé lors d'un séjour de 15 jours dans le laboratoire de M. Mathieu de l'université de Caen, concerne la séparation de molécules peptidiques extraites de ganglions cérébroïdes de moules: Plusieures fractions moléculaires ont été identifiées sur la base de leur PM, de leur activité sur la synthèse protéique, de leur réactivité vis-â-vis d'anticorps hétérologues spécifiques de différentes hormones ou de l'un des MAB spécifiques de ganglions. Parallèlement, l'effet des MAB sur l'activation de la synthèse protéique a été étudié. - Un deuxiéme aspect a consisté à rechercher dans le génome et dans les transcripts de la moule des séquences susceptibles de correspondre à des...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00426/53796/54713.pdf

Individual biomass, based on body measures, of copepod species considered as main forage items for fishes of the argentine shelf
Provedor de dados: 5
Autores: Araoz, Ncf.
Mean wet weights, prosome length-weight and prosome width-weight relationships are established for the later stages of the copepods C. carinatus, C. australis, A. tonsa, C. vanus, C. brachiatus and D. forcipatus from San Jorge Gulf. Individual biomass was estimated by the morphometric method. The potential model relating size and weight was selected for the best fit. Prosome width was a better weight predictor than prosome length in almost all developmental stages and both sexes of the species.
Tipo: Text
Palavras-chave: PLANKTONIC COPEPODS; ARGENTINE SHELF WATERS; INDIVIDUAL BIOMASS; SIZE-WEIGHT RELATIONSHIPS.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00103/21382/18982.pdf

Fumage : comparaison de la technique traditionnelle avec l'électrostatique
Provedor de dados: 5
Autores: Vallet, Jean-luc; Knockaert, Camille; Campello, Lucette.
L'objectif de ces essais était de vérifier si les saumons fumés par ionisation des particules se conservent aussi longtemps que ceux fumés de façon traditionnelle. En marge de cet essai nous avons voulu vérifier l'incidence du fumage sur la conservation des produits.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00126/23765/21659.pdf

Elevages larvaires semi-intensifs en marais atlantiques: essais réalisés sur le bar Dicentrarchus labrax et la dorade royale Sparus aurata à la station AQUALIVE en 1991
Provedor de dados: 5
Autores: Duprat, Laurent.
Contrairement aux élevages qui utilisent de telles structures, la principale difficulté de mise au point des élevages larvaires en bassins extérieurs réside dans la gestion du milieu et son contrôle. Les premiers stades larvaires sont en effet particulièrement sensibles à la qualité du milieu et le bar comme la dorade ne colonisent d'ailleurs les écosystèmes paraliques qu'à des stades ultérieurs. Il est donc non seulement nécessaire d'exercer un contrôle sur cet environnement, afin de permettre une bonne survie larvaire, mais aussi d'optimiser les principales composantes du milieu pour obtenir la meilleure croissance possible, tout en limitant les investissements et rester dans la philosophie des élevages extensifs et semiintensifs. Les essais précédents...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00436/54769/56219.pdf

Caractérisation antigénique des hémocytes de l'huître Crassostrea gigas et analyse de leur activité anti-infectieuse oxygène-dépendante
Provedor de dados: 5
Autores: Morvan, Annie.
Des anticorps monoclonaux spécifiques de l'hémolymphe de Crassostrea gigas (Mollusques : Bivalves) ont été caractérisés en immunohistologie. Plusieurs sous- populations hémocytaires ont été identifiées sur la base de leur antigénicité, et certaines d'entre elles ont été séparées par centrifugation isopycnique en gradient de Percoll. Cette technique a été comparée à une méthode d'immunopurification associant l'anticorps monoclonal HCG 12 et des billes magnétiques. L'activité de chimioluminescence résultant de la phagocytose de particules de zymosan a été estimée pour des sous- populations d'hémocytes. Le phénotype antigénique HCG 12 semble étroitement corré lé avec l'activité de chimioluminescence. Parmi les anticorps monoclonaux spécifiques d'épitopes...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00429/54051/55344.pdf

Influence de la triploïdie sur l'aptitude à la transformation de truite fario
Provedor de dados: 5
Autores: Cornet, Josiane; Vallet, Jean-luc.
Ce programme avait pour but d'étudier la variabilité dans le temps des caractéristiques de la truite fario diploïde et triploïde et les conséquences sur l'aptitude du produit à la transformation.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00125/23666/21563.pdf

Effect of starvation on RNA, DNA and protein-content of laboratory-reared larvae and juveniles of Solea-solea
Provedor de dados: 5
Autores: Richard, P; Bergeron, Jean-pierre; Boulhic, M; Galois, Robert; Person, Jeanine.
Using analyses of individuals, dry weight, RNA, DNA and protein content were measured on the same samples to assess the nutritional status of laboratory-reared larvae and juveniles of Solea solea (L.). During the early life of S. solea, 2 growth periods could be distinguished by dry weight measurements and biochemical composition analysis. After metamorphosis, dry weight, RNA, DNA and protein content per individual increased more slowly than before metamorphosis. RNA, DNA and protein were strongly positively correlated to dry weight of fed larvae. Starvation led to immediate loss of weight and to decrease in RNA and protein content, while DNA amount per individual remained roughly constant. Percentage of protein relative to dry weight was always lower in...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00072/18304/15868.pdf

Analyse du comportement des flottilles de pêche de Boulogne sur Mer
Provedor de dados: 5
Autores: Allard, M. O.
Le projet de recherche actuel répond donc A un besoin d'enrichissement mutuel des approches biologiques et économiques face A un double enjeu : - socio-économique : la crise subie par un secteur représentant  traditionnellement l'activité principale de certaines régions, - écologique : la survie de certaines espèces menacées par une pêche excessive, les deux enjeux étant directement liés dans de nombreux. L'idée est la suivante : à. partir des comportements de pêche observés au cours d'une année sur l'ensemble des bateaux de pêche inscrits A Boulogne-sur-Mer,essayer  de définir des stratégies-types et d'isoler ainsi des groupes de bateaux aux comportements voisin. Cela devrait conduire A des distinctions de flottilles plus pertinentes que les...
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-4216.pdf

Trophic relationships gonad-intestinal loop in Pecten maximus .
Provedor de dados: 5
Autores: Lepennec, M; Dorange, G; Beninger, P; Donval, A; Widowati, I.
Histological, histochemical and ultrastructural studies were performed on the region of the gonad traversed by the intestine in Pecten maximus . The results indicate a digestive and absorptive function of intestine epithelial cells and a transfer of metabolites to the surrounding gonad tissue. Several possible mechanisms of translocation are presented, including diffusion into the haemolymph and transfer via vacuolated cells of the gonad interstitial connective tissue.
Tipo: Text
Palavras-chave: Pecten maximus; Bivalvia; Histology; Haemolymph; Histochemistry; Cells; Metabolites; Epithelia; Intestines; Ultrastructure; Animal reproductive organs.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1668.pdf

Localisation immunohisto chimique de peptides apparentes aux hormones de vertebres chez Pecten maximus
Provedor de dados: 5
Autores: Donval, A.
Substances related to vertebrate peptidic hormones have been searched by immunohistochemical methods in Pecten maximus . Neurosecretory cells have been detected in the nervous ganglia with antisera raised against vertebrate hormones, gastrin/CCK like, glucagon like, insuline like, somatostatine like. Other gastro-intestinal hormones like are localized in some cells of the gut epithelium: bombesine and vasoactive intestinal peptide.
Tipo: Text
Palavras-chave: Pecten maximus; Bivalvia; Immunology; Histochemistry; Cells; Neurosecretory system; Juveniles; Hormones.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1724.pdf

Adaptation de la technique du télécaptage de l'huître creuse (Crassostrea gigas) aux conditions d'élevage de la Baie de Bourgneuf
Provedor de dados: 5
Autores: Baud, Jean-pierre; Jolly, Christian.
Pour améliorer la rotation des cheptels et les conditions d'élevage des huîtres sur estran, des expérimentations ont été réalisées afin de définir les conditions optimales du télécaptage. Afin de limiter les fluctuations de captage du milieu naturel et la répartition hétérogène des huîtres sur les collecteurs, l'effort principal de recherche dans cette étude a porté sur l'homogénéisation spatiale du naissain sur la périphérie des tubes plastiques. Différents plans d'expérience ont permis de proposer les conditions suivantes pour une meilleure répartition: - Disposition horizontale de la distribution des larves à raison de 50 % le premier jour et 50 % le 2ème jour, l'ensemble des collecteurs étant retourné entre ces deux jours. Pour l'obtention d'huîtres...
Tipo: Text
Palavras-chave: Crassostrea gigas; Télécaptage; Baie de Bourgneuf; Fixation; Naissain; Huître creuse.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00048/15884/13306.pdf

Contribution et informatisation d'un fichier des entreprises ostréicoles. Analyse typologique préalable à la définition d'une méthode d'étude des modes de production
Provedor de dados: 5
Autores: Ansart, Céline.
La création d'un fichier d'entreprises ostréïcoles arcachonnaises est une étape préliminaire nécessaire à des études ultérieures des modes de production sur le Bassin. Ce fichier n'étant pas immédiatement disponible, il doit être constitué à partir de données éparpillées dans différents organismes. La réalisation de ce travail a, de plus, apporté un certain nombre de renseignements sur les entreprises permettant d'en effectuer une typologie simplifiée. L'entreprise arcachonnaise type s'étend sur une surface de 1.74 ha, son chef est relativement agé, ses moyens humains et matériels sont limités. Elle se diversifie dans la pêche de coquillages et surtout de poissons, et elle pratique elle-même la commercialisation de ses produits en les vendant aux...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00441/55214/56687.pdf

La matière organique extractible et les lipides - Composition des effluents - Application au site de Morlaix
Provedor de dados: 5
Autores: Bodennec, Guy; Quemeneur, Michelle; Marty, Yanic.
This report deals with the composition of lipidic organic matter in the raw and treated effluents from the urban treatment plant of Morlaix and its evolution during a daily cycle. The chemical characterization of the organic extract is given by its distribution in the lipidic classes and in individual compounds in the fatty acid and sterol fractions for some specific samples. The values of concentrations,fluxes and degree of removal in the plant for the soluble and particulate matter are discussed and compared with the corresponding data from the treatrnent plant of Toulon.
Tipo: Text
Palavras-chave: Rejets urbains; Matière organique lipidique; Classes; Acides; Domestic waste water; Lipidic organic matter; Classes; Fatty acid.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00165/27577/25820.pdf

Water quality criteria and monitoring for marine mollusc culture : the French experience
Provedor de dados: 5
Autores: Heral, Maurice; Berthome, Jean-paul.
The impact of the main parameters of water quality which act on the life history of molluscs are presented. Two types of parameters are examined: the first are the physical-chemical parameters as temperature, salinity, turbidity, oxygen concentrations. They can be modified by perturbations directly related to human activities such as management of physical operations, e.g. constructions of dams, dredging for channels or for extraction of materials. Particular attention is given to inputs of nutrients with as consequences eutrophication and depletion of oxygen causing anoxie conditions. Attention will he focussed on some phytoplankton species like Gyrodinium aurelum which can cause mortalities in mollusc shellfish. The action of the main pollutants...
Tipo: Text
Palavras-chave: Networks; Monitoring; Water quality; Molluscs culture.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-3056.pdf

Traitement des crevettes contre le noircissement .Mise au point d'une ligne de traitement
Provedor de dados: 5
Autores: Chantreau, Patrick.
Once fished, the shrimps must be cooled quickly in water cooled in order to slow down all chemical and bacteriological activities. In addition, in order to avoid blackening (mélanose) shrimps (céphalothorax and legs) it is necessary to treat those with an antioxydant product. The product currently used to inhibit this enzymatic change is the soda niétabisuifite (Na-&gt; S7 O5), until now, after being fished. the shrimps were directly soaked in a cooled water tank, containing the pesticide.  The solution of treatment was progressively prepared needs. The concentration of this one was approximately 2 to 3% of métabisulfite, that is to say 6 to 9 G of SO2 per liter for a starting product containing 320 G of SO2 approximately.  In order to preserve a good...
Tipo: Text
Palavras-chave: New Caledonia; Blackening; Treatment; Penaeus stylirostris; Shrimp; Nouvelle Calédonie; Noircissement; Traitement; Penaeus stylirostris; Crevette.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-1648.pdf

Etude des vases et des biodépöts de Marennes-Oléron. Caractéristiques sédimentologiques
Provedor de dados: 5
Autores: CREOCEAN; IFREMER, Laboratoire LABEIM La Tremblade.
La présente étude est réalisée afin de préciser les caractéristiques des sédiments du bassin de Marennes-Oléron.
Tipo: Text
Palavras-chave: Sédiment; Vases; Caractéristiques; Teneur en eau; Carbonates; Matières organiques totales; Granulométrie; Bassin de Marennes Oléron.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00135/24631/22659.pdf

Classification phénétique par analyse des correspondances, des espèces du genre Trachurus Rafinesque, 1810 (poissons, Carangidae)
Provedor de dados: 5
Autores: Bensalem, M; Ktari, Mh.
Correspondence analysis of fourteen species or subspecies of Trachurus using thirteen variables (nine meristic data, two morphological characters) allowed us to define the affinities of the taxa. We use only the projections which accumulate the maximum of inertia.
Tipo: Text
Palavras-chave: TRACHURUS; AXE FACTORIAL; PROJECTION; CONTRIBUTION; CORRELATION.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00103/21383/18983.pdf

Deuxième colloque Biotechnologie Marines : La Tremblade, 28-30 mai 1991
Provedor de dados: 5
Autores: IFREMER, Institut Français de Recherche pour l'Exploitation de la mer; ADEBIO, Association pour le Développement de la Bio-Industrie.
Ce document est une compilation des présentations effectuées lors du deuxième Colloque de Biotechnologies Marines qui a eu lieu à Ronce les Bains du 28 au 30 mai 1991.
Tipo: Text
Palavras-chave: Biotechnologie; Microalgue; Cyanobactérie; Macroalgue; Bactérie hydrothermale; Chimie; Biochimie; Valorisation produits mer; Génétique; Pollution; Biocapteur; Microorganisme.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00210/32125/30582.pdf

L'étang de Bages-Sigean. La pêche et les activités sur le plan d'eau
Provedor de dados: 5
Autores: Aranda, Alain.
Notre objectif a été de rassembler dans un document synthétique les données disponibles sur les activités liées au plan d'eau de l'étang de Bages-Sigean. Cet inventaire souligne la spécificité et l'organisation saisonnière des modes de pêche. La pêcherie d'anguille (Anguilla anguilla) apparaît nettement comme la ressource essentielle de cette lagune. Le classement en réserve naturelle de l'étang de Bages-Sigean devrait préserver le fragile équilibre de cet espace lagunaire unique.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00039/15037/12371.pdf

Examples of responses of benthic communities to environmental stress (Dover Strait, France)
Provedor de dados: 5
Autores: Dewarumez, J M; Davoult, D; Frontier, S.
Rank-Frequency Diagrams (RFD) permit the determination and visualization of the coenotic strategy used by benthic communities in temporarily or permanently disturbed environments. Examples of structures, dynamic stability and strategies of benthic communities according to environmental variations are given and discussed. Both spatial and temporal variations have been analyzed by means of RFD.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00267/37867/35948.pdf

Atlas mensuel des températures moyennes dans le golfe de Gascogne
Provedor de dados: 5
Autores: Gohin, Francis; Langlois, G.
This study proposes a method for bathythermal analysis applied to the temperature profiles collected in the Bay of Biscay since 1950 and recorded at the French Hydrographic and Oceanographic Service of the Navy (SHOM). We consider the ocean variability, historically sampled with temperature measurements, from a geostatistical point of view. Thanks to an appropriate model of the thermal structures and using the "kriging" method, we proceed to monthly mean optimal estimations on a regular gridnet. For this purpose, we choose a random function model able to take several scales of phenomena into account. In practice, a structural analysis is first performed from the monthly files by computing the experimental variogram. Secondly, we exclude the incoherent...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21249/18892.pdf

Experimental-study of the interactions between a natural C-14 radiolabeled sediment and a deposit-feeding bivalve : Abra alba
Provedor de dados: 5
Autores: Amouroux, Jm; Gremare, A; Cahet, G.
Changes of radioactivity in a natural C-14 labelled sediment were monitored over a 120-hour period in the presence and in the absence of the deposit-feeding bivalve Abra alba. In both cases, the sediment showed great instability during the first ten hours of the experiment. The consequences of this result on the experimental protocol used for the study of the interactions between natural sediments and deposit-feeders are discussed. In controls, the instability is produced by an initial decrease of radioactivity in the sediment, whereas in the presence of Abra alba, it corresponds to an initial increase of radioactivity. Analysis of previously published data suggests that such responses may result from the inhibition or the stimulation of the bacterial...
Tipo: Text
Palavras-chave: DEPOSIT-FEEDER; MODELING; METHODOLOGY; NUTRITION; C-14.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21278/18887.pdf

Characteristics of the mediterranean underflow in the southwestern black-sea continental-shelf slope region
Provedor de dados: 5
Autores: Oguz, T; Rozman, L.
Hydrographic observations obtained during the period 6-13 August 1989 are used to illustrate characteristics of the dense water of the Mediterranean underflow in the southwestern Black Sea shelf/slope region. The inflowing warmer and saltier Mediterranean water is observed to spread north-northwestward of the channel-canyon axis along the bottom of the shelf. As the inflowing water crosses the shelf it becomes gradually cooler, fresher and thus less dense by mixing continually with the waters of the Cold Intermediate Layer (CIL). Beyond the shelf break, the slightly denser water of the Mediterranean underflow interacts with the thermocline waters of the ambient environment and is finally interleaved in the form of a neutrally buoyant, relatively colder...
Tipo: Text
Palavras-chave: MEDITERRANEAN UNDERFLOW; BLACK SEA; CONTINENTAL SHELF SLOPE; SINKING; INTRUSION.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21269/18880.pdf

European aquaculture 1991
Provedor de dados: 5
Autores: Shaw, S.
Aquaculture, the farming of aquatic animals and plants in marine and freshwater, has become a major industry in the Member States of the European Community. It is estimated that total production in 1989 amounted to over 847,000 tonnes and was worth over 7,900 million ECUs. We forecast that in 1991 production will be over 900,000 tonnes representing 8,500 million ECUs. This represents around 12% of total EC fish supplies. There are no accurate figures of employment available but we have identified a minimum of 53,000 people directly employed In aquaculture. Actual numbers are likely to be substantially higher than this. In addition, large numbers are employed in the provision of supplies for the industry and in downstream production and marketing. This...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-4147.pdf

Connaître la qualité de l'eau. Avantages, observations et mise en oeuvre. Fiche pratique n°3
Provedor de dados: 5
Autores: Ravoux, Georges; Piquion, Jean-claude.
Destinée aux Professionnels qui mettent les coquillages en marché, cette série "fiches pratiques" a pour but de les aider à améliorer leurs connaissances et leurs pratiques, donc rendre leurs entreprises plus performantes. Ces fiches ne prétendent pas répondre à toutes les questions mais abordent les points essentiels sur un sujet technique précis pour faciliter son approfondissement ultérieur. [OCR NON CONTRÔLE]
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-4332.pdf

On the assimilation of climatological data by means of numerical circulation models, exemplified for the mediterranean-sea
Provedor de dados: 5
Autores: Stanev, Ev; Friedrich, Hj.
Based on Levitus' (1982) data set, a combination of robust diagonstic and fully prognostic techniques is used to evaluate for the Mediterranean Sea a climatology consistent with the physics of the GFDL-OGCM. Model experiments are carried out with 28 levels and with a horizontal resolution of DELTA-lambda = 1/3-degrees, DELTA-phi = 1/4-degrees. The model is forced mechanically by wind stress taken from Hellerman and Rosenstein's (1983) data. Sea surface temperature and salinity are prescribed from Levitus' (1982) data. Exchange flows in the Strait of Gibraltar are explicitly prescribed with 1.5 x 10(6) m3s-1. The focus is put on the analysis of initial and boundary conditions data. The dynamical effects of the exchange flows in the Strait of Gibraltar, as...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21371/18971.pdf

Interaction entre la couche limite d'Ekman sous un ecoulement de maree et une couche limite contiere, et instabilites barotropes
Provedor de dados: 5
Autores: Chabert D'Hieres, G.
Strong tidal currents generate in coastal waters a number of phenomena which are not taken into account by mesoscale modelling. These are related to: the Coriolis effects on horizontal turbulence; the bottom boundary layer effect modified by the rotation of the earth and depth variations. Schematic experiments to demonstrate these effects have been done on the large rotating table in Grenoble. We describe the experiments and the preliminary results obtained with permanent and alternative currents. The experiments were conducted along the wall of a horizontal flat-bottom cylindrical rotating tank, respecting the Froude, Ekman and Rossby similitudes.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37879/35960.pdf

Ostracoberyx paxtoni, nouvelle espèce des côtes est de l'Australie. Remarques sur les modifications morphologiques des Ostracoberyx au cours de leur croissance (Perciformes, ostracoberycidae)
Provedor de dados: 5
Autores: Quero, Jean-claude; Ozouf-costaz, C.
A new species of Ostracoberyx, O. paxtoni n. sp. is described from eastern Australia. It is characterized by a lower number of gill rakers on the lower part of the gill arch and by differences in some morphometric characters (body depth, interorbital width, etc.). The marked difference in appearance between young and adults in O. paxtoni as well as in O. dorygenys are underlined. O. Tricornis is considered to be based on juvenile of O. dorygenys and is a junior synonym of the latter. NOT CONTROLLED OCR
Tipo: Text
Palavras-chave: New species; Morphological changes; Australia; ISE; Ostracoberyx dorygenys; Ostracoberyx paxtoni; Ostracoberycidae.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-3770.pdf

Biophysical and biochemical properties of an unusual birnavirus pathogenic for rotifers
Provedor de dados: 5
Autores: Comps, Michel; Mari, Jocelyne; Poisson, Francois; Bonami, Jean-robert.
A cytoplasmic dsRNA virus, rotifer birnavirus (RBV), has recently been isolated from the rotifer Brachionus plicatilis and is associated with a high mortality rate. Histologically, the viral lesions consist of characteristic inclusions, particularly amorphous dense bodies containing occluded particles. Purified virions are about 59 nm in diameter, single-shelled and display four capsomers per edge. The purified virions have a buoyant density of 1.290 (full particles) and 1.250 (empty particles) in CsCI gradients. Four major structural polypeptides of Mrs 60K, 52K, 33K and 27K were detected by SDS-PAGE. The genome is composed of two linear segments of dsRNA with Mrs of 2.45 x 106 and 2.31 × 106; additionally, small circular ssRNA molecules were detected by...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00129/24032/21994.pdf

Modele faciologique d'un corps sedimenataire pelitique de plate-forme: La vasiere Ouest-Gironde (France)
Provedor de dados: 5
Autores: Lesuer, P; Tastet, J P; Weber, O; Sinko, Ja.
The mud-patch located in the western part of the Gironde Estuary system comprises a lenticular sedimentary body 420 km super(2) in area, oriented NE-SW at a depth ranging between 30 and 75 m. Its thickness does not exceed 4 m; it fills a light depression in a substrate composed of palimpsest shelly pebbles to find sand deposits. The deposition of this mud-patch from the original estuarine suspended matter began less than 2000 years ago, when the sea reached its present-day level. The sediments are silty-clayey, organized in several centimetrical to decimetrical fining-up sequences, more silty at the base of the mud-patch. Such rythmic deposits are characteristics of a reworking by storm or strong wave activity. These sequences show a seaward evolution. The...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00267/37871/35952.pdf

Rapport de missions d'expertise sur le projet d'élevage de crevettes présenté par le groupe Odebrecht dans le cadre de la coopération franco-brésilienne et proposition de document de projet
Provedor de dados: 5
Autores: Paquotte, Philippe.
After a period of high growth in the 1970s and the early 1980s up until 1985-a record year with 838 000 tonnes (FAO data)-, landings are now on the decline and did not total more than 750 000 tonnes in 1988. Production in continental waters represents one-fourth of total production. States in southern Brazil provide three-fourths of landings but only half of their value because the states in the north-east (Nordeste) compensate the relatively low volume of their catches with the high market value of the fished species. Industrial fishing represents 60% of landings and is particularly developed in the south while, in the Nordeste, artisanal fishing prevails (40% of landings) and is most often done using non-motorised vessels. The main obstacles to fisheries...
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-4155.pdf

Etude bioénergétique de six mollusques bivalves en baie de Saint-Brieuc
Provedor de dados: 5
Autores: Blanchard, Michel.
Laboratory experiments on physiological parameters, have been performed, in order to obtain the Scope For Growth, of six species of marine bivalves. Between March 1988 and April 1989, intertidal and subtidal individuals, collected in the Bay of SAINT-BRIEUC, have been submitted to the analysis. Among them, LAEVICARDIUM CRASSUM, ACANTHOCARDIA ECHINATA, TAPES RHOMBOIDES and CORBULA GIBBA, were collected in the subtidal area, and CERASTODERMA EDULE, TELLINA TENUIS on intertidal flats. Results show similar patterns for the first three species mentioned above, but they exibit large variability for the other species studied, due to some heterogeneity in their size, habitat and egestion rate. Results obtained from laboratory experiments have been generalised to...
Tipo: Text
Palavras-chave: Bilan énergétique; Baie de SAINT; BRIEUC; Mollusques Bivalves; Scope For Growth; Bay of SAINT; BRIEUC; Bivalves Molluscs.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21315/18935.pdf

Report of the study group on pollution affecting shellfish in aquaculture and natural populations - 1991
Provedor de dados: 5
Autores: Heral, Maurice; Meixner, R.; Spencer, B.; Walsh, G.; Worms, J.
This document is a report of a Study Group of the International Council for the Exploration of the Sea and does not necessarily represent the views of the Council. Therefore it should not he quoted without consultation with the General Secretary.
Tipo: Text
Palavras-chave: Natural populations; Aquaculture; Shellfish; Pollution; Populations naturelles; Aquaculture; Coquillages; Pollution.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-3048.pdf

Salmonelles et coquillages en Ille-et-Vilaine et Côtes d'Armor 1988-1989
Provedor de dados: 5
Autores: Convenant, Aliette.
La. synthèse des résultats de la recherche des salmonelles sur 2 années (1988- 1989 ) sur le littoral d'Ille-et-Vilaine et des Côtes d'Armor, avait pour but principal de f'aire un inventaire aussi complet que possible des sites contaminés par ces bactéries. Ceci n'était qu'une première approche. Il s'est avéré que les salmonelles étaient présentes dans pratiquement tous les secteurs et dans toutes les espèces de coquillages. Bien que les salmonelles soient plus fréquemment retrouvées dans les coquillages fortement contaminés en coliformes fécaux, la relation entre le niveau de contamination fécale et la fréquence de détection des salmonelles n'est pas absolue. Quelques essais de décontamination des coquillages ont par ailleurs été réalisés et semblent...
Tipo: Text
Palavras-chave: Salmonelles; Coquillages; Iles et Vilaine; Côte d'Armor.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00429/54022/55239.pdf

The decline of Chesapeake Bay oyster population : a century of habitat destruction and overfishing
Provedor de dados: 5
Autores: Rotschild, B. J.; Ault, J. S.; Goulletquer, Philippe; Jensen, W. P.; Heral, Maurice.
The  oyster population in the Maryland portion of the Chesapeake Bay has declined b y more than 38-fold since the early part of the century. Although the effects of fishing have been implicated, the decline has been attributed primarily to water quality and recently oyster disease. The decline has also been thought to have affected the biota and chemistry of the Bay. Our analysis provides a quantitative demonstration that the long-term declines are largely the result of habitat loss related to over fishing early in the century, stock over fishing, early in the century' through the recent times. Furthermore, the major ecological effects on Chesapeake Bay occurred well-before World War 1/, before industrialization and the prevalence of disease
Tipo: Text
Palavras-chave: USA; Chesapeake Bay; Prevalence of disease; Industrialization; Diseases; Crassostrea virginica; Oysters.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-3058.pdf

Donnees sur les gasteropodes dulcicoles de l'ouest de la France: Mise en evidence de cinq groupes d'especes (ACP)
Provedor de dados: 5
Autores: Costil, F.
24 Species of Gastropoda, representing 3357 specimens, have been sampled in 57 varied ponds of Brittany (France). The most frequent species (at least in 10% of the samples) are considered according to their average abundance and dominance. The average specific richness of the ponds where the species have been collected is studied. In a second stage, the Gastropoda are analysed by means of a principal component analysis. The 1-2 plane correspond to 87% of the whole variance. This analysis associated with a cluster analysis led to the partition of 5 groups of species.
Tipo: Text
Palavras-chave: Gastropoda; Frequency analysis; Freshwater molluscs; Fresh water; Check lists; Inventories; Mathematical models; Ponds; Abundance.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1713.pdf

Surface salinity reconstruction of the north-atlantic ocean during the last glacial maximum
Provedor de dados: 5
Autores: Duplessy, Jc; Labeyrie, L; Juilletleclerc, A; Maitre, F; Duprat, J; Sarnthein, M.
We have developed a new method to reconstruct surface water salinity of the North Atlantic Ocean, based on a comparison between transfer function estimates of sea surface temperature and the oxygen isotope ratio of two common planktonic foraminiferal species, N. pachyderma (left coiling) and G. bulloides. We first used core-top analyses to demonstrate that, under modern conditions, the paleotemperatures determined from the isotopic composition of foraminiferal shells are linearly linked to the summer sea surface temperature only within a certain temperature range, characteristic of each species, which is termed the "optimum temperature range". We then used this information to derive an estimate of the isotopic composition and salinity of the North Atlantic...
Tipo: Text
Palavras-chave: PALEO-OCEANOGRAPHY; PALEOCLIMATOLOGY; ISOTOPES; SALINITY; ATLANTIC OCEAN.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21261/18872.pdf

Contribution à la conception d'un système d'information économique et sociale dans le secteur des pêches en France
Provedor de dados: 5
Autores: Fallon, Etienne.
Réalisé sous la responsabilité de Monsieur Jacques Weber, ce travail s'est uniquement préoccupé, suivant le cadre énoncé ci-dessus, a réfléchir et a concevoir une base minimale de données et d'indicateurs, qui devrait pouvoir donner corps au futur SIES, en assurant la saisie et le suivi de l'état du secteur pêche, de son évolution..., dans une vision globale (nationale) et sectorielle. [OCR NON CONTRÔLE]
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/these-4099.pdf

Etude de la salubrité des gisements de coques de la Baie de Somme
Provedor de dados: 5
Autores: Olivesi, Rene; Morel, Marc; Rybarczyk, Hervé.
Les gisements de coques de la Baie de Somme ont été classés en zone insalubre en septembre 1971. Vingt ans après cette décision, un état de lieux a été effectué d'avril 1989 à mars 1990. 182 prélèvements de coques répartis sur 12 mois consécutifs et 7 stations ont donné lieu à la recherche essentiellement des coliformes et des streptocoques fécaux. L'étude a confirmé le maintien du classement en zone insalubre mais a montré que la partie Nord de la Baie présentait généralement une meilleure qualité bactériologique que celle de la partie Sud. La possibilité de développement d'activités aquacoles en Baie de Somme Nord reste cependant soumise à la confirmation de l'amélioration sanitaire dans cette partie de la Baie.
Tipo: Text
Palavras-chave: Baie de Somme; Salubrité; Coliformes; Streptocoques.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00081/19265/16860.pdf

Utilisation d'eaux salées souterraines en baie de Bourgneuf, pour le prégrossissement intensif de mollusques filtreurs en nourricerie
Provedor de dados: 5
Autores: Baud, Jean-pierre.
L'utilisation d'une eau salée souterraine riche en sels nutritifs et de température constante a permis d'étudier l'influence des paramètres physicochimiques essentiels sur la croissance intensive de naissains de Crassostrea gigas et de Ruditapes philippinarum en nourricerie durant les périodes hivernales et estivales. Après la mise au point d'un procédé fiable de culture d'une algue fourrage, la variabilité saisonnière des composés biochimiques de la diatomée Skeletonema costatum produite en grands volumes extérieurs (50 m3) est étudiée. Les conditions d'élevage lors des différentes expériences sont contrôlées (densité de naissain, débit d'eau de mer, concentration de phytoplancton et température). Les différents résultats biologiques obtenus sont analysés...
Tipo: Text
Palavras-chave: Ruditapes philippinarum; Crassostrea gigas; Prégrossissement intensif; Nourricerie; Eau salée souterraine; Baie de Bourgneuf; Relations trophiques.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00441/55217/56691.pdf

Interpretation of multi-season, multiyear color imagery for a continental-shelf region
Provedor de dados: 5
Autores: Topliss, Bj; Payzant, La; Hurley, Pcf; Miller, Jr; Freemantle, J.
A comparison was made between multi-year, multi-season cruise information from the surface waters of the Scotian shelf and satellite imagery from the Coastal Zone Colour Scanner (CZCS). The colour imagery was able to identify several physical processes on the shelf (such as outflows and upwelling) to approximately the same degree as previously reported with thermal imagery. Because processing CZCS data requires the use of atmospheric and marine models defined by a range of input parameters, the various processing steps and assumptions were evaluated for potential impact on any marine interpretation of the imagery. The shelf waters were not a pure oceanic water mass throughout the year and turbidity levels were found to be the most significant interfering...
Tipo: Text
Palavras-chave: SHELF SEA; REMOTE SENSING; TURBIDITY.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00103/21381/18981.pdf

Les ports de plaisance. Impacts sur le littoral
Provedor de dados: 5
Autores: Mauvais, Jean-louis.
The increase in the number of marinas and the problems that they pose has prompted Ifremer to analyse the consequences of these structures on the coastal environment. This report reviews the impacts associated with the construction and the operation of marinas. Some simple measures are proposed to reduce the inconveniences and ensure the compatibility of pleasure boating with other traditional activities. Most of all, these measures seek to reconcile the existence of marinas with environmental protection. This report is intended, in particular, for spatial planners and those responsible for protecting the coastal environment: representatives of administrative bodies; national, local, county ("department") and regional governments; organisations and...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-4460.pdf

Rheological properties of marine organic aggregates: Importance for vertical flux, turbulence and microzones
Provedor de dados: 5
Autores: Jenkinson, Ir; Biddanda, Ba; Turley, C M; Abreu, P C; Riebesell, U; Smetacek, V S.
For marine environments where aggregates are composed of greater than or equal to 50% organic matter, various parameters relevant to aggregation are quantified and compared with those in other aggregation regimes. Some possible environmental effects of the rheological properties of marine organic aggregates are reviewed. The interaction between shear forces in the water and aggregate rheology is likely to determine: firstly, the sinking speed of aggregates and hence vertical organic flux rates; secondly, the volume of microzones, with implications for equilibria and kinetics of chemical reactions in the pelagic milieu; and thirdly, the degree of turbulence damping between aggregates, due to absorption of energy through viscous dissipation inside...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00267/37872/35953.pdf

Maîtrise des écloseries des mollusques bivalves. Rapport Périodique : Années 1989 et 1990
Provedor de dados: 5
Autores: Ifremer.
L'objet du travail entrepris est d'identifier les sources de variabilité au niveau de toutes les étapes biologiques (reproduction, croissance et développement larvaire, métamorphose, croissance post-larvaire), pendant lesquelles l'organisme est cultivé dans des conditions controlées, avant d'être semé dans le milieu.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00450/56167/57716.pdf

Les pêches artisanales de la Manche Orientale. Flottilles et ressources halieutiques
Provedor de dados: 5
Autores: Lemoine, Michel; Giret, Marc.
From Normandy to Belgium bordary, the coastal fishery became during the ten last years a significant social and economic actor, which mostly lives by predominant exploitation of Eastern Channel. Recently discovering a situation of resource overexploitation and a difficult cohabitation between "metiers", these coastal fleets are in the heart of various preoccupations of managment at regional, national and european levels. Since 1985, a coordinated programme (including Boulogne and Ouistreham) allowed to progress in the knowledge of complex fisheries through : improvement of statistics, characterisation of coastal fleets and their activity, asses-ment of the knowledge on the resources.This synthesis describes, for 1987-1988, the quality of the regional...
Tipo: Text
Palavras-chave: Ressource halieutique; Manche Orientale; Flottille; Pêche artisanale; Eastern English Channel; Fleet; Artisanal fishing.
Ano: 1991
URL: https://archimer.ifremer.fr/doc/1991/rapport-1664.pdf

Organisation spatiale et modélisation écologique d'un peuplement phytoplanctonique de lagune (étang de Thau, France)
Provedor de dados: 5
Autores: Jarry, V; Frisoni, Gf; Legendre, P.
A systematic sampling of twenty stations was conducted over four periods within a year (June 1986, October 1986, February 1987, and May 1987) in Thau lagoon. Multivariate analyses (clustering, and principal coordinate analysis) were carried out on phytoplankton species counts. These analyses allowed homogenous areas within the lagoon to be identified and permitted the characterization of these areas in terms of the marine or continental origins of their phytoplankton taxa. The results show the relative importance of each kind of input (marine, continental), and contrast the punctual influence of the continental inputs against the more global effects of the sea. The conclusions drawn from the taxonomic portion of the study were confirmed by statistical...
Tipo: Text
Palavras-chave: Phytoplankton; Populations; Chlorophyll pigments; Ecological modelling; Mediterranean lagoon; PHYTOPLANKTON; POPULATIONS; CHLOROPHYLL PIGMENTS; ECOLOGICAL MODELING; MEDITERRANEAN LAGOON.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00323/43397/43105.pdf

Frequency demodulation on otolith numerical images for the automation of fish age estimation
Provedor de dados: 5
Autores: Troadec, Herve.
A method to assist the reading of calcified structures with digital images is proposed. An a priori growth pattern is introduced in the image processing to take into account both the variability of the ring size and the non-linearity of their growth. The introduction of biological knowledge is performed within a demodulation processing using the reciprocal growth function. The ring number is estimated by spectral analysis. The constraints introduced by the growth model are weak since they are restricted to the definition of L0, in the case of an exponential model, or of L∞ in the case of a Von Bertalanffy model. When applied to larval Dover sole otoliths (Solea solea) results close to the expert's are obtained. In the case of saithe otoliths (Pollachius...
Tipo: Text
Palavras-chave: Otolithe; Image numérique; Âge; Croissance; Solea solea / Pollachius virens; Otolith; Digital image; Age; Growth; Solea solea / Pollachius virens.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00189/30072/28560.pdf

Ecothau. Synthèse des résultats
Provedor de dados: 5
Autores: Jouffre, Didier; Amanieu, Michel.
Initié en 1985 et commencé sur le terrain en 1986, le programme ECOTHAU se proposait de conduire une "Etude intégrée des mécanismes de la production biologique de l'étang de Thau, en relation avec son environnement". Quatre rapports intermédiaires (1985, 87, 88, 90), huit mémoires de D.E.A., neuf thèses, une cinquantaine de communications scientifiques, marquent déjà l'importance des résultats obtenus. Actuellement encore divers programmes et études prolongent ECOTHAU ou s'en inspirent. Il convenait donc de mettre en forme un rapport de synthèse qui montre la cohérence globale de l'action poursuivie même si, de toute évidence, il ne s'agit pas là d'y mettre un terme définitif; c'est le but du présent document.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00060/17168/14670.pdf

Rapport d'activité 1991 de l'Unité de Recherche en Génétique et Ecloserie (URGE)
Provedor de dados: 5
Autores: Gerard, Andre.
Rapport d'activité 1991 de l'Unité de Recherche en Génétique et Ecloserie (URGE) de La Tremblade.
Tipo: Text
Palavras-chave: Rapport activité; Génétique; Ecloserie; Zootechnie; Bivalves.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00087/19775/17413.pdf

Quelques peuplements malacologiques ayant contribue aux comblements du marais poitevin actuel (Vendee et Charente-Maritime)
Provedor de dados: 5
Autores: Gruet, Y; Sauriau, P.
Four cores have been sampled in the "Marais Poitevin": one of them in the east of Charron, another one near Pied-Lizet and the others near Maillezais. Pieces of shells of different species have been numbered and weighed. Ranks frequencies diagrams show the malacological associations homogeneity and diversity. The factorial analysis on the absences-presences makes clear an ecological gradient from the most marine associations to the most superficial and finally land associations.
Tipo: Text
Palavras-chave: Fossils; Marshes; Malacology.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1760.pdf

Modélisation de la production de l'huître Crassostrea gigas du bassin de Marennes-Oléron (France). Etude de l'influence des apports de nitrates du fleuve Charente sur la production primaire et ostréicole
Provedor de dados: 5
Autores: Raillard, Olivier; Menesguen, Alain.
Oyster production of the Marennes-Oléron Basin is simulated using a model integrating phytoplankton growth, oyster growth and horizontal transport of suspended matter. Firstly the simulations are compared to the measurements. At season scale, the phytoplankton and nitrates evolution are well predicted by the model. In compensation, the model does not simulated well the spring/neap tidal variability of the phytoplankton. Secondly, the phytoplancton and oyster productions are calculated as a function of the nitrates river inputs. Biotic capacity of the basin appears to be particulary influenced by these nutrients during summer. On the other hand, spatial variability of the impact of the nitrates variation is clearly shown, the primary productions of the...
Tipo: Text
Palavras-chave: Croissance; Production; Marennes Oléron; Crassostrea gigas; Huîtres; Modélisation.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-3042.pdf

Activité respiratoire en continu de l'huître Crassostrea gigas : mise au point d'une nouvelle méthodologie
Provedor de dados: 5
Autores: Bougrier, Serge; Geairon, Philippe.
A continuous monitoring system to measure the respiration of Crassostrea gigas has been developped. The metabolic function estimated by oxygen consumption has been monitored during periods of 24 h, without food, at a temperature constant of 15°C. Preliminary results showed that the mean percentage of oyster activities was 50 % with a high variability from 0 to 100 %. The number of activity periods per day (24 h) is function of the oysters with variation between 0 and 7.
Tipo: Text
Palavras-chave: Physiology; Respiration; Crassostrea gigas; Oysters; Physiologie; Respiration; Crassostrea gigas; Huîtres.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-3046.pdf

Surveillance écologique et halieutique. Site de Flamanville. Année 1990
Provedor de dados: 5
Autores: Dreves, Luc; Arzul, Genevieve; Erard-le Denn, Evelyne; Quintin, Jean-yves; Martin, Jocelyne; Miossec, Dominique.
Surveillance n°8 of FLAMANVILLE power plant takes in account studies between march 1990 and september 1990. Hydrology, microbiology, phytoplankton, zooplankton, intertidal zoobenthos and fishing are studied. The year 1990 is the fifth year of working for this power plant. [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: Pelagos; Fisheries; Benthos; Monitoring; Flamanville; Nuclear power plant; Pelagos; Halieutique; Benthos; Surveillance; Flamanville; Centrale nucléaire.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-6799.pdf

Processus hydrodynamiques et morphosedimentaires de l'environnement des barres d'avant-cote du littoral du Golfe du Lion
Provedor de dados: 5
Autores: Barusseau, J P; Brissaud, L; Drapeau, G; Long, B.
Factors such as the origin of the material involved in the profile equilibrium, or the rate of sea level rise are important in partially controlling the shoreline evolution. In the Gulf of Lions (Mediterranean Sea), the linear and crescentic offshore bars constitute another factor which prevents the use of simple models such as the power function y = ax super(b). A relevant parameter to improve our understanding seems to be the shape of the profile recorded normally to the shore and the definition of its interannual fluctuations. This project works out a number of regular surveys, in time and space, from permanently located landmarks. Each landmark constitutes an observatory and the measurements reported here: bathymetry, topography, sedimentology and...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37881/35962.pdf

Détection automatique par visionique des Dinophysis spp. contenus dans des échantillons d'eau de mer. Premiers résultats
Provedor de dados: 5
Autores: Le Dean, Loic; Gauthier, Franck.
Nous avons réalisé cette étude dans le but de fournir aux agents d'IFREMER chargés de la surveillance des eaux littorales et en particulier de la flore phytoplanctonnique, un outil permettant d'identifier et de compter les cellules de Dinophysis de façon automatique. La visionique nous semblant être une discipline qui se prêtait à ce type de détection, nous avons réalisé une étude de faisabilité d'un système d'analyse d'il}1age appliqué à la reconnaissance et au comptage de Dinophysis. Le capteur utilisé est une caméra J.V.C Tri C.C.D transmettant trois images (rouge - verte - bleue) à un ordinateur compatible A.T.. Celui ci est équipé d'un ensemble de cartes MATROX de numérisation et traitement d'images et d'un coprossesseur arithmétique. Les applications...
Tipo: Text
Palavras-chave: Dinophysis; Phytoplancton; Visionique; Reconnaissance de forme; Segmentation; Binarisationcontours.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00136/24714/22768.pdf

Contribution à l'étude des effets de la bioaccumulation de cadmium par l'huître Crassostrea gigas dans l'estuaire de la Gironde
Provedor de dados: 5
Autores: Delcroix, Valérie.
Le cadmium, sous produit du zinc est utilisé en industrie. La quasi totalité du cadmium utilisé a été disséminée dans l'environnement. Le cadmium provoque chez l'homme des intoxications par inhalation et par ingestion par l'intermédiaire d'aliments contaminés. Les organismes marins comme l'huître concentrent le cadmium et le stockent sous des formes biodisponibles par les mammifères qui les consomment. Face à ce problème important nous avons mené une enquète avec l'aide de l' IFREMER et de la DDASS sur les effets possibles de l'accumulation de cadmium par les consommateurs d'huitres. Une étude de décontamination a été entreprise sur ces huîtres, une fois placées en eau exempte de pollution
Tipo: Text
Palavras-chave: Cadmium; Huître Gigas; Estuaire Gironde; Epdémiologie cadmium; Décontamination.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00442/55394/56914.pdf

Évolution printanière des éléments nutritifs et du phytoplancton sur le plateau continental armoricain (Europe du Nord-Ouest)
Provedor de dados: 5
Autores: Morin, P; Lecorre, P; Marty, Y; Lhelguen, S.
The evolution of nutrient distribution has been followed in spring on the Armorican shelf in association with hydrological features and phytoplankton development. Data were collected on a sampling grid of 20 stations on the continental shelf during four cruises (SATIR 8 to 11) between March and June 1982. Haline fronts (Ushant haline front, coastal haline front) were found in late winter and early spring; their outlines follow closely the outlines of the summer thermal fronts. The origin of these haline fronts comes mainly from the outflow towards the English Channel of the waters of the Loire river on the South Brittany shelf. At this time of the year, a conservative mixing is observed between offshore waters with relatively low nutrient concentrations...
Tipo: Text
Palavras-chave: NUTRIENTS; CONTINENTAL SHELF; NORTH-WEST EUROPE; TIDAL FRONTS; PHYTOPLANKTON.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21256/18869.pdf

Grain-size partitioning of butyltins in estuarine and coastal sediments
Provedor de dados: 5
Autores: Quevauviller, P; Etcheber, H; Raoux, C; Donard, O.
Grain-size partitioning of tributyltin (TBT) and its degradation products di- and monobutyltin (DBT and MBT) in coastal sediments revealed a strong tendency on the part of these compounds to adsorb on to detrital fragments (algal and leaf debris mixed with light mineral particles). Butyltins have been weakly detected in sands washed from these debris, a finding which underlined the need to separate both fractions (sands and debris) for an accurate assessment of the grain size partitioning. In debris-free sediments, butyltins were mostly detected in the silt/clay fraction. It was found necessary to consider the total amount of butyltins in each fraction, and hence the relative proportion of each fraction, in order accurately to assess the grain-size...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00267/37873/35954.pdf

Modélisation de la production ostréicole à Marennes-Oléron : introduction d'un modèle de croissance phytoplanctonique
Provedor de dados: 5
Autores: Raillard, Olivier.
La complication d'un modèle déterministe est une action qui ne peut être envisagée sans raisons impérieuses. En plus des mécanismes nouveaux qu'il importe de connaître précisément pour les formaliser correctement, l'introduction de nouveaux paramètres, dont la valeur exacte n'est jamais connue, accroit l'incertitude du modèle (Klepper et Scholten, 1988) et affecte ainsi sa robustesse (Swartzman et Kaluzny, 1987). A Marennes-Oléron, l'introduction d'un modèle de production primaire doit permettre d'aborder les problèmes suivants : Quelle est véritablement l'impact des débits de la Charente sur la production ostréicole? ou plus précisément : les nutriments d'origine charentaise contrôlent-ils la production phytoplanctonique du bassin et par voie de...
Tipo: Text
Palavras-chave: Modélisation; Croissance; Phytoplancton; Modèle biologique; Bassin de Marennes Oléron; Charente Maritime.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21313/18932.pdf

Environnement littoral et santé dans la région Nord pas de Calais : pour une approche épidémiologique
Provedor de dados: 5
Autores: Declercq, Christophe; Lacoste, Olivier; Lahoute, Christian.
Un programme intégré de recherche sur l'environnement littoral entrepris pendant plusieurs années par le Conseil Régional Nord Pas de Calais et l'Institut Français de Recherche pour l'Exploitation de la Mer et s'appuyant sur les équipes scientifiques régionales a permis d'aboutir à une meilleure connaissance de l'état de l'environnement littoral et de ses sources de pollution. Cependant, l'absence relative de données épidémiologiques empêche d'évaluer avec précision l'impact sur la santé humaine de cette situation. Nous avons donc tenté de dégager des axes de travail dans ce domaine, en particulier en ce qui concerne : - une étude des relations entre mortalité des populations et environnement (en particulier par l'étude des décès attribués à des cancers),...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00033/14384/11676.pdf

La vitellogenese chez Patella coeruelae LMK (Mollusca, Gasteropoda). Approche ultrastructurale
Provedor de dados: 5
Autores: Benmeradi, N.
During the reproductive period, the microscopical observation of Patella coerulea ovary shows some ovogonies forming neets, supported by a conjonctive network, previtellogenic oocytes which leave gradually the conjonctive tissue and vitellogenic oocytes isolated in the acinus lumen. In early stages of previtellogenesis, an important nucleolar activity, caracterised by cloud-shaped or nematosomes and ribonucleoproteinic extrusions in cytoplasm compartment can be observed. At the end of this stage, the oocyte becomes richer in organites, mitochondria, granular endoplasmic reticulum and Golgi. We further notice the outcome of the first vitellin platelets. Production of vitellus is higher as three kinds of vitellus are observed in the following order: dark...
Tipo: Text
Palavras-chave: Ultrastructure; Oogenesis; Sexual reproduction; Vitellogenesis.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1720.pdf

Modelisation numerique d'un couplage physico-biologique en milieu cotier
Provedor de dados: 5
Autores: Marcer, R; Fraunie, P; Dekeyser, I; Andersen, V.
This study concerns the numerical simulation of the behaviour of pelagic systems in marine environments by means of a coupled biological and physical model. The physical model is based on the resolution of the Navier-Stokes, temperature and salinity equations in the 3 dimensions of space with a turbulent closure model consisting of 2 supplementary equations ( Kappa - epsilon model). The tridimensional biological model distinguishes 5 areas: phytoplankton (alive and dead); dissolved inorganic nitrogen; herbivores (essentially copepods); and zooplanktonic wastes (dead bodies and fecal pellets). Other than biological relations (nutrition, excretion,...), the sedimentation of biogenic particles (alive and dead phytoplanktonic cells, dead herbivores) are also...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37882/35963.pdf

SARGASSUM MUTICUM (Yendo) Fensholt. Synthèse des actions entreprises de 1983 à 1989.
Provedor de dados: 5
Autores: Belsher, Thomas.
Les nuisances provoquées au début des années 1980 dans les installations ostréicoles ont amené les Ministères de la mer et de la Recherche de l'époque à confier au CNEXO, devenu IFREMER, une étude concernant la colonisation des côtes françaises par Sargassum muticum et les actions à entreprendre pour l'enrayer. Le rapport, intitulé" Installation de Sargassum muticum (Yendo) Fensholt-Problèmes et prospectives au 31 mars 1983" (Belsher T.et C.Boyen, 1983), a été remis au Ministère de la Mer le 1er Avril 1983. Aux données biologiques succédait la liste des laboratoires susceptibles de travailler sur l'un des sujets identifié dans les volets "acquisitions de données biologiques et suivi, lutte, revalorisation", définis par un groupe de travail constitué pour...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00113/22403/20096.pdf

Composition chimique et ornementation de Cyprideis torosa (Crustacea, Ostracoda) dans le domaine paralique
Provedor de dados: 5
Autores: Bodergat, Am; Rio, M; Andreani, Am.
Cyprideis torosa (Crustacea, Ostracoda), which is well known for its ability to live in a wide range of salinity and for the variability of its ornamentation, was sampled in the paralic environment. in the Camargue (France) and in the area of Santa-Pola (south-east Spain), in ambient waters whose salinity varies from 1 to 120 g/l. The collected valves. which are smooth, punctuated, reticulated or have nodes on their surface, were analyzed by means of spark-source mass spectrometry. We detected twenty-six chemical elements, and found a clear relationship between the chemical composition, the ornamentation of the valves and the environmental parameters. In the oligohaline environment, the carapaces are thick, reticulated or node-bearing ; they are enriched...
Tipo: Text
Palavras-chave: OSTRACODS; ORNAMENTATION; PARALIC ENVIRONMENT; CHEMICAL COMPOSITION; POLLUTION.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00103/21378/18978.pdf

Caracterisation des hemocytes d''un mollusque bivalve marin, la nacre, Pinna nobilis L. 1758
Provedor de dados: 5
Autores: Henry, M; Vicente, N; Houache, N.
The study of tinctorial affinities, in vitro behaviour and ultrastructure of the hemocytes of Pinna nobilis allows us to group them into two main families: basophilic, neutrophilic and acidophilic granulocytes; hyalinocytes, three categories can be distinguished among these cells: small hyalinocytes, hyalinocytes containing smooth endoplasmic reticulum and the macrophage population. The hemocytes participate in the regulation of metabolism by the storage and degradation of glycogen. They contribute to the detoxification process by the sequestration of mineral elements in their lysosomes. Their role in antibacterial defense is suggested by their bacterian phagocytic activity.
Tipo: Text
Palavras-chave: Pinna nobilis; Bivalvia; Haemolymph; Animal metabolism; Marine molluscs; Ultrastructure.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1711.pdf

Traitement des langoustines et des crevettes contre le noircissement
Provedor de dados: 5
Autores: Chantreau, Patrick; Vallet, Jean-luc.
The conservation of crawfish requires the use of chemical substances making it possible to limit blackening.  This phenomenon this blackening (melanine) is due to the coordinated action of three elements: - oxygen,   - an enzyme (cupro-protein),  - a suitable substrate, tyrosin or the dihydroxyphénylalanine.  The absence of the one of them allows a notorious reduction in the phenomenon.  Several antioxydant products, were used to prevent the formation of the mélanine. The métabisutfite of soda or potassium as well as soda bisulfite in acid solution, are currently used to treat crawfish and shrimps.  Several methods of use of these pesticides exist, we propose in this report to present the principal ones, as well as the control methods making it possible to...
Tipo: Text
Palavras-chave: Regulation; Sprinkling; Antioxydant; Technology; Treatment; Shrimp; Crawfish; Réglementation; Aspersion; Antioxydant; Technologie; Traitement; Crevette; Langoustine.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-1586.pdf

Séries magmatiques arc et arrière-arc de la sonde : nature des sources impliquées (éléments en trace et isotopes Sr-Nd-Pb)
Provedor de dados: 5
Autores: Romeur, Monique.
ln Java island, a number of quaternary volcanoes are Iocated in a back-arc position relative to the Sunda arc volcanie axis. These volcanie centers show an important variability in the petrologic composition of their products (potassic calc-alkali, shoshonitie, alkali potassie and alkali u/trapotassie leucitic series).
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00034/14540/11815.pdf

Diversification des productions conchylicoles en Poitou-Charentes. L'élevage du pétoncle noir Chramys Varias
Provedor de dados: 5
Autores: Bodoy, Alain; Garnier, Jacqueline; Heurtebise, Serge; Nollet, V.; Chagot, Dominique.
La croissance et la reproduction du pétoncle noir, Chlamys varia, ont été suivies sur un cycle biologique complet, dans un marais maritime. Cette croissance s'est avérée être nettement, plus rapide qu'en rade de Brest, puisque la taille commerciale de 35 mm a été atteinte en un an. Les individus se sont reproduits au bout de la même période. Ceci montre qu'il est possible d'obtenir un cycle biologique très rapide. Lors du cycle de production, des mortalités importantes ont été constatées entre le prégrossissement en nurserie et la mise en élevage. Ces mortalités ne se sont pas renouvelées sur le cycle en cours d'étude. Un agent parasite nouveau a été décrit sur cette espèce, sans que les certitudes puissent être établies quant à son rôle pathogène....
Tipo: Text
Palavras-chave: Croissance; Composition biochimique; Elevage; Pétoncle; Marais maritime; Charente-Maritime.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00048/15905/13333.pdf

Reproduction et recrutement de la coque Cerastoderma edule L. a Saint-Pol-de-Leon (Bretagne Nord)
Provedor de dados: 5
Autores: Guillou, Jean-louis; Tartu, C.
Investigation on the recruitment of Cerastoderma edule was carried out at St-Pol-de-Leon over three years. This approach is intended to disclose in the fluctuations of recruitment the part of variability linked with reproduction and spawning. Stages of sexual maturity are used together with a condition index. The reproductive activity spread out over the most part of the year, ripe individuals being observed even in winter. Main spawning took place in summer and autumn. Seasonal and interannual fluctuations of recruitment are associated with the variations of the condition index. An increase of the reproductive activity could be observed between 1987 and 1989 related with temperature. It is shown that this factor is the main responsible of the variations...
Tipo: Text
Palavras-chave: Cerastoderma edule; Bivalvia; Marine molluscs; Temperature effects; Recruitment; Seasonal variations; Sexual maturity; Reproductive cycle; Spawning; Sexual reproduction.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1719.pdf

The biological use of chemical-elements - selection on environmental availability and electron configuration
Provedor de dados: 5
Autores: Spaargaren, Dh.
The molal concentrations of 34 elements in marine organisms were compared with the availability of these elements in their natural environment and some physico-chemical properties of the elements, viz. the charge/radius ratio or ionic potential and the "noble gas deviation" or NGD-index. The NGD-index is defined in this paper as a value which expresses the deviation of the electron configuration of an element with that of the previous and subsequent noble gas configurations. The value for the NGD-index can be obtained by multiplying the number of electrons which must be lost or gained to obtain the configuration of, respectively, the previous and the subsequent noble gas, divided by their squared sum. The concentration factor (ratio of element...
Tipo: Text
Palavras-chave: ELEMENTAL COMPOSITION; BIOLOGICAL MATERIAL; ENVIRONMENTAL AVAILABILITY; OCEANIC RESIDENCE TIME.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21276/18885.pdf

Bilan energetique de la population de coque (Cerastoderma edule ) en baie de Saint-Brieuc, Manche Ouest
Provedor de dados: 5
Autores: Blanchard, Michel.
During one year, from March 1988 to June 1989, the intertidal population of Cerastoderma edule in the Bay of Saint-Brieuc, is investigated. Physiological measurements (ingestion, egestion, respiration and excretion) are monthly carried out in laboratory. We observe that reproductive metabolism influences the results. The energy budget of this cockle population, based on a biomass and production estimate for a 15 x 10 super(6) sq.m. area, is calculated and discussed.
Tipo: Text
Palavras-chave: ANE; France; Brittany; St. Brieuc Bay Cerastoderma edule Bivalvia Marine molluscs Experimental research Excretion Ingestion Temperature Oxygen consumption Respiration Animal physiology Biomass Energy budget.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1716.pdf

Projet de suivi des élevages ostréicoles en Baie de Morlaix
Provedor de dados: 5
Autores: Le Bec, Claude.
Depuis son introduction dans la région l'huître creuse s'élève traditionnellement sur le sol en baie de Morlaix. Cette technique est supplantée progressivement par l'élevage en surélevé, technique introduite ici par des ostréiculteurs provenant d'autres régions ostréicoles. Les craintes de voir cette technique s'imposer en baie de Morlaix, avec les conséquences à plus ou moins court terme que celle-ci pourrait entraîner (augmentation des biomasses, envasement progressif de la baie), ont amené le Syndicat Ostréicole de la Région de Morlaix à contacter l'IFREMER pour un suivi de leurs parcs afin d'apprécier les risques encourus par cette évolution.
Tipo: Text
Ano: 1991
URL: https://archimer.ifremer.fr/doc/00470/58170/60681.pdf

Stratégies de pêche et rentabilité des unités de pêche artisanale française
Provedor de dados: 5
Autores: Ahnani, M; Allard, M. O.; Couchot, M. D.; Garriou, N; Neme, I.
Le thème de notre groupe de travail concerne l'activité des flottilles de pêche française opérant dans la Mer du Nord et le Golfe de Gascogne. L'objectif est de mettre en évidence des stratégies de pêche, selon les flottilles, les équipements, les lieux de pêche et le type des captures. Il faut savoir que la Mer du Nord représente 15 % du tonnage total français au débarquement et le Golfe de Gascogne 20 % du tonnage total français
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: https://archimer.ifremer.fr/doc/1991/these-4174.pdf

Etude sanitaire des eaux conchylicoles de la rivière de Saint-Philibert (Morbihan)
Provedor de dados: 5
Autores: Allenou, Jean-pierre.
L'étude réalisée en 1988 sur la rivière de St-Philibert a permis d'apprécier la qualité sanitaire de ses eaux conchylicoles. Les analyses bactériologiques sont effectuées sur les coquillages utilisés comme intégrateurs de la contamination hydrique du milieu. Les résultats révèlent une situation sanitaire homogène et satisfaisante sur l 'ensemble des sites étudiés.  En été, les résultats sont très bons malgré l'accroissement de la population estivale. Par contre, les fortes pluies hivernales semblent être à l'origine d'une contamination plus élevée (janvier). Une approche de l'environnement sanitaire a permis de mesurer les risques potentiels de contamination agricole et urbaine
Tipo: Text
Palavras-chave: Bactériologie; Conchyliculture; Salubrité; Coliformes; Rivière de Saint-Philibert.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00429/54041/55306.pdf

Mesure du phosphore dans les eaux naturelles : contamination potentielle par la verrerie
Provedor de dados: 5
Autores: Aminot, Alain; Kerouel, Roger; Etoubleau, Joel; Cambon, Pierre.
Des mesures de phosphore dans plusieurs échantillons de verres de laboratoire ont été réalisées, après digestion fluorhydrique, par colorimétrie phosphomolybdique. On trouve que les verres peuvent contenir de 0,001 à 0,002 % de phosphore. On montre que la verrerie peut contribuer de manière significative à la contamination en phosphore d'échantillons d'eaux naturelles, notamment d'eau de mer, en raison de la dissolution partielle du verre dans l'échantillon, dans certaines conditions de conservation ou de digestion.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00082/19346/16940.pdf

Culture of turbot (Scophthalmus maximus)
Provedor de dados: 5
Autores: Person-le Ruyet, Jeanine; Baudin-laurenc, Félix; Devauchelle, Nicole; Metailler, Robert; Nicolas, Jean-louis; Robin, Jean; Guillaume, Jean.
Turbot, Scophthalmus maximus Rafinesque, 1810: Psetta maxima Linnaeus, 1758, is a marine demersal carnivorous flatfish of the Scophthalmidae family, relatively abundant in Europe: from 68°N down to Morocco 30°N. It is also abundant in the Mediterranean Sea as far as Turkey. But it is lacking in the Black Sea, where two very close species, S. maeoticus and S. ponticus, are naturally found (Figure 1). Turbot are caught on sand, gravel, or mixed bottoms at a depth of 20 to 70 m. The total annual catch is less than 10,000 for all Europe in spite of the high market price: from 10 to 25 U.S. $/kg according to the country and the size of the fish (0.65 to 15 kg). Turbot was selected for aquaculture in the early 1970s, both in the United Kingdom and France due to...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00048/15930/13356.pdf

Les filières économiques ostréicoles et mytilicoles françaises
Provedor de dados: 5
Autores: Chuche, E.
In this report, the economic sectors of oyster and mussel culture will be studied in turn using the same methodology: based on a survey of professionals, a classification scheme of the players in these sectors is proposed. Three groups of players were analysed for each sector, excluding all quantitative data. The obtained results revealed heterogeneous determining factors in the structuring of the oyster and mussel culture sectors. The study of the development in both sectors uncovered the main factor that drives progress in each sector: -problems in marketing the oyster production; -factors limiting growth in mussel production.
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/these-4156.pdf

Plankton community respiration and its relationship to chlorophyll a concentration in marine coastal waters
Provedor de dados: 5
Autores: Iriarte, A; Daneri, G; Garcia, Vmt; Purdie, Da; Crawford, Dw.
Rates of plankton community respiration and chlorophyll a levels were measured in water samples collected at several times of the year in the North Sea, and during July in the English Channel. Planktonic community respiration rates ranged from 0.025 to 0.830-mu-mol O2 l-1 h-1. At low and moderate chlorophyll a concentrations (0-5-mu-g l-1) the correlation between algal biomass and community respiration was not significant. However, respiration and chlorophyll a did correlate significantly and positively at chlorophyll a levels in excess of 5-mu-g l-1. This is discussed in terms of the relative contribution to the total community respiration of autotrophs and microheterotrophs. It is argued that at low and moderate chlorophyll a concentrations, the...
Tipo: Text
Palavras-chave: PLANKTON; RESPIRATION; CHLOROPHYLL A; COASTAL WATERS; MICROHETEROTROPHS.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21266/18877.pdf

Application of munk's abyssal recipes to tracer distributions in the deep waters of the south-banda basin
Provedor de dados: 5
Autores: Vanaken, Hm; Vanbennekom, Aj; Mook, Wg; Postma, H.
The vertical structures of distribution of potential temperature, oxygen, orthophosphate, dissolved silica and C-14 in the South Banda basin (East Indonesia) have been studied quantitatively by means of a simple one-dimensional model as reviewed by Munk (1966). The effective source and sink terms for several parameters, as well as the effective diffusion coefficient, have been estimated. The relatively large vertical diffusion coefficient (1.3.10(-3) m2/s) is probably mainly due to tidally driven boundary mixing along the side walls of the basin. The budgets of dissolved oxygen, phosphate and silicate can be modelled adequately with a constant source or sink term. While oxygen consumption mainly takes place in the water column, the source for dissolved...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21246/18861.pdf

Geographical extent of denitrification in the arabian sea in relation to some physical processes
Provedor de dados: 5
Autores: Naqvi, Wa.
Utilizing all the available data, the distribution of nitrite at the secondary nitrite maximum is studied to delineate the boundaries of the denitrification zone and to understand some of the processes that control the extent of denitrification in the Arabian Sea. Nitrite distribution shows little correspondence with primary productivity, and the three major sites of seasonal upwelling appear to be located outside the zone of intense denitrification. This distinguishes the Arabian Sea from the other two major oceanic denitrification sites, located in the Pacific Ocean. The relationship between nitrite and nitrate deficit suggests that the distribution of the former effectively reflects the extent of denitrification. The locus of the most intense...
Tipo: Text
Palavras-chave: ARABIAN SEA; DENITRIFICATION; PRIMARY PRODUCTION; SURFACE CIRCULATION; WINTER CONVECTION.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21257/18870.pdf

Le marché des produits de la mer
Provedor de dados: 5
Autores: Pitiot, H.
PREMIERE PARTIE: L'OFFRE ET LA DEMANDE DE PRODUITS DE LA MER H/ Les caractéristiques de l'offre des produits de la mer : - une ressource renouvelable compte tenue de limites biologiques. - des produits non stockables sans transformation préalable (surgélation, etc.) I/ les facteurs influençant la demande : - Les tendances longues de la demande de produits de la mer - l'Impact des prix sur la demande - l'Impact des prix des produits substituts sur la demande - l'Impact des modification de revenu sur la demande.  SECONDE PARTIE: FONCTIONNEMENT DE MARCHE ET FORMATION DES PRIX AU DÉBARQUEMENT I/ Le fonctionnement d'un marché de gré A gré : Le marché du poisson A Marseille (SAUMATY) II/ Le fonctionnement d'un marché en criée : La Criée de Sète III/ Perspectives...
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-4097.pdf

Aération des bassins. Avantages, observations et mise en oeuvre. Fiche pratique n°1
Provedor de dados: 5
Autores: Ravoux, Georges; Piquion, Jean-claude.
Destinée aux Professionnels qui mettent les coquillages en marché, cette série "fiches pratiques" a pour but de les aider à améliorer leurs connaissances et leurs pratiques, donc rendre leurs entreprises plus performantes. Ces fiches ne prétendent pas répondre à toutes les questions mais abordent les points essentiels sur un sujet technique précis pour faciliter son approfondissement ultérieur. [OCR NON CONTRÔLE]
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-4336.pdf

Un projet de réseau instrumenté pour la surveillance de l'environnement littoral
Provedor de dados: 5
Autores: Berthome, Jean-paul.
Le projet de développement d'un réseau instrumenté de surveillance de l'environnement littoral correspond à une nécessité d'observations, sur de longues séries temporelles, et de mesures à des fréquences élevées.  Il est le résultat d'une analyse des besoins des différents types d'utilisations. Il est l'occasion de coopération entre des scientifiques et des industriels pour développer un réseau de stations instrumentées multiparamètres transmettant les données par satellite vers une station de traitement des données et de diffusion de celles-ci par réseau informatisé.
Tipo: Text
Palavras-chave: Surveillance; Capteur; Bouée; Monitoring; Sensor; Buoy.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00107/21823/19411.pdf

Purification de peptides immunologiquement apparentes aux gastrines / cholecystokinines chez quelques crustacés décapodes : action sur la synthèse protéique
Provedor de dados: 5
Autores: Berge, Jean-pascal.
La présence de substances immunologiquement apparentées aux O/CCK de vertébrés est détectée chez les crustacés décapodes (Favrel,1988; Turrigiano G.G,1989). Un protocole de purification est même établi pour Palaemon serratus et Nephrops norvegicus (Favrel,1988).  Dans un premier temps, nous allons nous attacher à la purification des G/CCK immunologiquement apparentées aux hormones peptidiques de vertébrés (O/CCK"like") chez les deux espèces précitées.  Dans un deuxième temps, à l'aide des fractions purifiées, le rôle biologique des G/CCK"Iike" et particulièrement leur action sur la synthèse protéique vont être étudiés.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00136/24708/22762.pdf

Peuplements actuels et thanatocénoses à Soritidae et Peneroplidae des Keys de Floride (USA)
Provedor de dados: 5
Autores: Levy, A.
In the sedimentary areas surrounding the Florida Keys, Soritidae and Peneroplidae are very well represented. These benthic foraminifera are generally attached to seagrasses or algae and more rarely to carbonate deposits. The colouring of their protoplasm results from the nature of endosymbiotic algae. The principal species represented are: Androsina lucasi (never recorded before in Florida) which lives only in the margino-littoral biotopes where the salinity is highly variable; Archaias angulatus and Amphisorus hemprichii which live in the biotopes of the littoral platform but also in those of the interior margin of the bay where the variations of salinity are weak; Cyclorbiculina compressa and Peneroplis proteus which live for the main part in the...
Tipo: Text
Palavras-chave: ATLANTIC; FLORIDA-KEYS; FORAMINIFERA; ECOLOGY.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00103/21379/18979.pdf

Mise au point technique de l'élevage de l'ombrine Sciaenops ocellata à la Martinique
Provedor de dados: 5
Autores: Soletchnik, Patrick; Goyard, Emmanuel; Thouard, Emmanuel.
Depuis maintenant plus de trois ans, l'équipe IFREMER de Martinique travaille à la mise au point technique de l'élevage de l'ombrine subtropicale (Sciaenosp ocellata), dans des conditions intensives. En matière de reproduction, l'équipe IFREMER a engagé dès 1987, une opération de transfert de la technologie Américaine de maturation et ponte grâce au contrôle environnemental de la température et de la phtopériode. Près de 50 millions d'oeufs ont été produits en 1989, à partir de 5 femelles de 5 à 6 kg. En terme d'alevinage, les "résidus d'expérimentation" ont été de 12 000, 18 000, 9 000 et 89 000 alevins sevrés (1 à 2g), respectivement pour les années 1987, 88, 89 et 1990. En 1990, l'objectif principal de démonstration de la faisabilité de la technique...
Tipo: Text
Palavras-chave: Ombrine; Sciaenops ocellata; Maturation; Pontes; Alevinage; Grossissement; Martinique.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00130/24140/22146.pdf

Analysis of larval oyster grazing by flow cytometry
Provedor de dados: 5
Autores: Chretiennot-dinet, Marie-josèphe; Vaulot, Daniel; Galois, Robert; Spano, Anna-maria; Robert, Rene.
The ingestion of 8 algal species by oyster larvae (Crassostrea gigas Thunberg, 1793) was measured by flow cytometry (FCM). In a preliminary experiment, cell size (estimated by light scatter) and chlorophyll fluorescence of 30 algal species were evaluated to select those species which could be mixed together and still be easily discriminated by FCM. Grazing experiments were carried out over 48 h with 6 and 15-day old larvae fed on 3 algal mixtures, each containing 3 different algal species. The concentration of each species was estimated at 0, 6, 12, 24 and 48 h by FCM. Grazing pressure on a given algal species was dependent upon the age of the larvae, the time of the day and the composition of the mixture. Grazing rates of older larvae were about twice...
Tipo: Text
Palavras-chave: Oyster larvae; Crassostrea gigas; Grazing; Algae; Selective feeding; Flow cytometry.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00090/20164/17817.pdf

Etude de la production et des marchés des moules et des huîtres en Espagne
Provedor de dados: 5
Autores: Antona, Martine.
Effectué A partir d'une synthèse bibliographique, ce rapport a pour objectif de présenter les caractéristiques de la production et des marchés de la moule (et de l'huître) en Espagne et d'identifier les principales contraintes et atouts du secteur. Il fait partie, avec les rapports concernant ces secteurs en Grande Bretagne, en Irlande, en Hollande, au Danemark, en Allemagne, en Italie et en France, du premier rapport intermédiaire de l'étude "Cost and prices analysis for an economic study of shellfish culture management". L'étude est menée dans le cadre d'un programme FAR de la Commission des Communautés Européennes, en parallèle par l'Université de Strathclyde en Grande Bretagne, le LEI en Hollande et l'IFREMER en France. [OCR NON CONTRÔLE]
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-4171.pdf

Optimisation de l'élevage intensif de la palourde japonaise Ruditapes philippinarum en marais
Provedor de dados: 5
Autores: Breton, Gildas; Baud, Jean-pierre; Haure, Joel.
Après les études de mise au point de la technique intensive réalisées en 1988 et 1989 sur des bassins expérimentaux de 30 m2, une optimisation de cette méthode d'élevage a été faite sur deux claires de 200 m2 avec les normes zootechniques suivantes: densité = 300 palourdes x m-2, concentration d'eau de mer enrichie en Skeletonema costatum produit à partir d'eau salée souterraine = 300 cellules/µl ou 126 µg/l de chla, taux de renouvellement = 100 % du volume par jour. En 8 mois d'élevage, le poids moyen des palourdes est passé de 5,5 g à 19,3 g, soit un rendement de 4,53 kg/m2 pour une production finale de 1,86 tonne, avec une chair de qualité satisfaisante, riche en glycogène et ayant un indice de condition de 94. Aucune trace d'anneau brun n'a été...
Tipo: Text
Palavras-chave: Aquaculture intensive; Marais maritime; Ruditapes philippinarum; Skeletonema costatum; Eau salée souterraine; Asperseur.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00048/15880/13302.pdf

Epizootiological study of rickettsiosis of the Saint-Jacques scallop Pecten maximus
Provedor de dados: 5
Autores: Le Gall, G; Mialhe, Eric; Chagot, D; Grizel, Henri.
Rickettsia-like microorganisms were described in gill endothelial cells during mass mortalities of Saint-Jacques scallops Pecten maximus in Saint-Brieuc Bay (North Brittany, France) during winter 1985-86. In order to evaluate the epizootiological significance of rickettsiosis of scallops, an analytical and descriptive epizootiological study was undertaken. The study included the geographic distribution, incidence and severity of the disease for several northern European and French scallop populations. Since the center of French scallop production is in Saint-Brieuc Bay, epizootiological investigations were concentrated in this area. Dissemination appeared to be by horizontal transmission. The pathogenic significance of the rickettsia-like organism in...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-2758.pdf

Quelques ophidiiformes de l'île de la Réunion : description d'une espèce nouvelle
Provedor de dados: 5
Autores: Nielsen, J; Quero, Jean-claude.
Ten specimens of ophidiiform fishes were caught off Réunion Island. Nine of these belong to the Ophidiidae: 3 Acanthonus armatus, 1 Bassozetus glutinosus, 1 Holcomycteronus aequatoris and 4 Neobythites multistriatus (new to science) and one to the Bythitidae: Diplacanthopoma sp. All are new records for Réunion Island. NOT CONTROLLED OCR
Tipo: Text
Palavras-chave: Taxonomy; I.S.W. Réunion Island; Diplacanthopoma sp.; Neobythites multistriatus sp.n.; Holcomycteronus aequatoris; Bassozetus glutinosus; Acanthonus armatus; Bythitidae; Ophidiidae; Taxonomie; I.S.W. Ile de la Réunion; Diplacanthopoma sp.; Neobythites multistriatus sp.n.; Holcomycteronus aequatoris; Bassozetus glutinosus; Acanthonus armatus; Bythitidae; Ophidiidae.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-3768.pdf

Analysis of the French fishery for Porbeagle Lamna nasus (Bonnaterre, 1788)
Provedor de dados: 5
Autores: Lallemand-lemoine, Laurence.
This paper is a description of the French fishery for porbeagle. Catches are mostly landed by longliners from Yeu Island, and informations on trends of French landings, fishing grounds localisation and landings by month are presented. Sorne data on catch composition by month are also available (number and mean weight of fish) and discussed
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00424/53532/54388.pdf

Relance de l'huître plate. Rapport de synthèse des travaux 1990
Provedor de dados: 5
Autores: Martin, Anne-genevieve.
Une convention a été signée en 1990 avec la Région Bretagne pour financer la poursuite des recherches dans le but d'accélérer la relance de l'élevage de l'huître plate, à la suite de la deuxième épizootie due à un protozoaire, Bonamia ostreae. Ce rapport présente les travaux réalisés et les résultats acquis durant l'année 1990, dans les domaines de l'épidémiologie descriptive, de la zootechnie, de la génétique (recherche d'espèces ou de souches résistantes) et de l'immuno-pathologie (étude de la maladie et des mécanismes de défense des mollusques).  Durant l'année 1990, la situation épidémiologique des élevages d'huîtres plates en eau profonde a évolué différemment selon les secteurs: relativement stable en Baie du Mont st Michel, elle présente de brusques...
Tipo: Text
Palavras-chave: Bivalves; Ostrea edulis; Bonamia ostreae; Épidémiologie; Pathologie; Immunologie; Génétique; Échantillonnage; Élevage; Shellfish; Ostrea edulis; Bonamia ostreae; Epidemiology; Pathology; Immunology; Genetic; Sampling; Rearing.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21320/18942.pdf

Strategy of researches on marine bivalve defense mechanisms
Provedor de dados: 5
Autores: Bachere, Evelyne; Mialhe, Eric; Noel, Thierry; Boulo, Viviane; Hervio, Dominique; Le Gall, Ghyslaine; Morvan, Annie.
Because of the impact of infectious diseases in marine mollusc aquaculture, research has been initially developed in pathology in term of epidemiology and diagnosis. The establishment of basic techniques for in vitro and in vivo studies of host/pathogen interactions and the progresses in the field of cellular and molecular biology have permitted to undertake researches in immunology. Parallel to fundamental interest in understanding defense mecanisms of molluscs against pathogens, applications may be expected for resistant strains obtained by genetic engineering.
Tipo: Text
Palavras-chave: Defense mechanisms; Hosts; Immunology; Pathogens; Crassostrea gigas; Mytilus edulis.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00038/14884/12207.pdf

Chemical induction of larval metamorphosis of Pecten maximus with a note on the nature of naturally occurring triggering substances
Provedor de dados: 5
Autores: Chevolot, Lionel; Cochard, Jean-claude; Yvin, Jean-claude.
Delayed metamorphosis usually occurs when scallop Pecten maximus (L.) larvae are reared in still water. Metamorphosis rates may be increased by adding aqueous extracts of certain marine red algae, including one [Delesseria sanguinea (Linne) Lamouroux (Delesseriaceae, Rhodomelaceae)] from which various chemical inducers have been isolated. Of these, jacaranone (a simple quinol) is by far the most active component; other components (p-OH phenylacetic acid methyl ester, p-OH benzaldehyde, p-OH benzyl alcohol) are only weak inducers. All are catabolic derivatives of tyrosine. Homogentisic acid (biosynthetically related to jacaranone) and some catecholamines (L-DOPA, epinephrine) can also induce metamorphosis of P. maximus larvae. All these compounds can be...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00182/29348/28137.pdf

Température et salinité dans l'Aber Benoît et l'Aber Wrach été 1991, rapport de mesures
Provedor de dados: 5
Autores: Merceron, Michel; Gaffet, Jean-dominique.
This report displays the data of temperature and salinity from the records performed in the Aber Wrach and Aber Benoît estuaries during the summer 1991. This work was decided after a massive oyster kill in the Aber Benoît estuary.
Tipo: Text
Palavras-chave: Brittany; Estuary; Salinity; Temperature; Bretagne; Estuaire; Salinité; Température.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-2659.pdf

Premières observations dans les ports français de Sphoeroides pachygaster (pisces, tetraodontiformes, tetraodontidae), capturés au nord de leur aire de répartition connue
Provedor de dados: 5
Autores: Quero, Jean-claude; Du Buit, M.h.; Fonteneau, Joseph; Kergoat, Bernard; Vayne, Jean-jacques.
Three Spheroides pachygaster were apparently the first records of this species in the French harbours and also lhe first to be captured from the North of Bay of Biscay and the South coast of Ireland. NOT CONTROLLED OCR
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-3682.pdf

Analysis of the French fishery for Porbeagle Ltimna nasus (Bonnaterre, 1788)
Provedor de dados: 5
Autores: Lallemand-lemoine, Laurence.
This paper is a description of the French fishery for porbeagle. Catches are mostly landed by longliners from Y eu Island, and informations on trends of French landings, fishing grounds localisation and landings by month are presented. Sorne data on catch composition by month are also available (number and mean weight of fish) and discussed.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00399/51025/51810.pdf

Estimation of the vertical eddy diffusion-coefficient of heat in the gulf of trieste (northern adriatic)
Provedor de dados: 5
Autores: Malacic, V.
The vertical eddy diffusion coefficient of heat has been computed from a least squares trigonometric fit of temperatures measured in the Gulf of Trieste (approximately 21 m depth), at four levels of the water column, from January 1986 to September 1989. This coefficient is supposed to be in the form of a constant plus a time and depth function. In climatological time scales, the constant coefficient is sufficient for the description of annual temperature changes in the lower part (approximately 10-21 m depth) of the water column. For the upper part of the column, the possible range of values of the coefficient for the shallow Gulf of Trieste is discussed.
Tipo: Text
Palavras-chave: HEAT; EDDY DIFFUSION; LEAST SQUARE FITS; NORTHERN ADRIATIC.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21253/18866.pdf

Localisation and characterization of acid phosphate activity in Bonamia ostreae (Ascetospora), an intrahemocytic protozoan parasite of the flat oyster Ostrea edulis (Bivalvia)
Provedor de dados: 5
Autores: Hervio, Dominique; Chagot, Dominique; Godin, Pierre; Grizel, Henri; Mialhe, Eric.
Acid phosphatase activity was cytochemically detected at the ultrastructural level in the protozoan Bonamia ostreae, an intrahemocytic parasite of the flat oyster Ostrea edulis. Lead nitrate was used as capture agent for phosphate liberated during the hydrolysis of the subtrate (cytidine 5' monophosphate). Lead phosphate precipiation, indicative of enzyme activity, was located in membrane-bound organelles corresponding to the cytoplasmic inclusions known as "dense bodies". Acid phosphatase activity level and sodium L-tartrate inhibition were measured spectrophotometrically from a purified parasite suspension. The possible involvement of this enzyme in intracellular survival of B. ostrea is discussed.
Tipo: Text
Palavras-chave: Acid phosphate activity; Ostrea edulis; Bonamia ostreae.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-2755.pdf

Etude technique et financière sur la filière de production intensive de la palourde en marais
Provedor de dados: 5
Autores: Ayel, J. P.
The development of the intensive method for producing Manila clams (Ruditapes philippinarum) in marshes is the result of five years of research at the Ifremer station in Bouin. The method developed here produces a clam of commercial size in 19 months instead of two to three years. Batches of intensively farmed clams are more homogenous than batches of extensively farmed clams. The many advantages of this method suggest that the clam farming profession would be very interested in these new culture techniques. Before considering technology transfer, it is necessary to carry out an economic study. The project retained for this study concerns the installation of a new farm that is to produce 15 or 20 t of commercial-size clams (&gt;35 mm) in Bourgneuf Bay. The...
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/these-4170.pdf

Caracteristiques ultrastructurales du spermatozoide de la coquille Saint-Jacques, Pecten maximus (Mollusque, Bivalve)
Provedor de dados: 5
Autores: Dorange, G; Lepennec, M.
The spermatozoon of Pecten maximus is of the primitive type usually associated with species having external fertilization or emitting the sperm in the water. The size of the nucleus is reduced. The middle piece is similar to that reported for several Bivalves. It contains glycogen. But the spermatozoon of P. maximus exhibits its own ultrastructural characteristics: the short acrosome differs in size, shape, position and ultrastructure or by a combination of these from that of many bivalves. No axial rods was observed in contrast to several species of Mytilidae, Veneridae and Ostreidae. These originalities could go to the genus level.
Tipo: Text
Palavras-chave: Pecten maximus; Bivalvia; Ultrastructure; Sperm.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1725.pdf

La Conchyliculture en Baie des Veys
Provedor de dados: 5
Autores: Kopp, Joel; Joly, Jean-pierre; Moriceau, Jacques; Legagneur, E.; Jacqueline, Franck.
Ces travaux de recherche ont mis en évidence l'existence de terrains propices au développement de la conchyliculture en Basse Normandie. C'est ainsi qu'en Baie des Veys, par exemple, la surface ostréicole concédée est passée de 12 ha en 1969 à 162 ha en 1989 ou que, les zones ostréicoles de Lestre, de Crasville et de Meuvaines ont été créées de toutes pièces. Toutes les conditions étaient donc remplies pour que l'on assiste à la création de très nombreuses petites entreprises de production et donc à un développement rapide de celle-ci.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00081/19246/16841.pdf

Première évaluation des potentialités du satellite Spot pour la cartographie des peuplements benthiques superficiels de Méditerranée occidentale
Provedor de dados: 5
Autores: Meinesz, Alexandre; Belsher, Thomas; Boudouresque, Charles-françois; Lefevre, Jean-robert.
A Spot satellite image was processed to assess the suitability of this facility for the cartography of epibenthic populations and bottom types in the Mediterranean sublittoral fringe. The area studied was on the north coast of Porquerolles island (Hyeres, SE France). The treated data were compared with mapping carried out by diving. We show that satellite remote sensing may permit a distinction between certain epibenthic populations and bottom types down to 10 m depth. Thus the usefulness of the satellite is reduced where the sublittoral is steeply shelving, as the mappable area is narrow and represented by only a few pixels, each of which tends to overlap several separate biocoenoses. The image treated was obtained in June under very favourable...
Tipo: Text
Palavras-chave: POSIDONIA-OCEANICA; MAPPING; REMOTE SENSING; SPOT.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00183/29397/27762.pdf

Variation of recruitment in flatfishes on a nursery ground of the northern Bay of Biscay, from 1981 to 1990
Provedor de dados: 5
Autores: Dorel, Didier; Desaunay, Yves.
A stratified sampling scheme of the Bay of Vilaine (332 km super(2)) provided a ten years index of abundance series for the O-group and the I-group of the Dover sole Solea solea), the plaice Pleuronectes platessa , the dab Limanda limanda and the wedge Sole Dicologoglossa cuneata . Variation of distribution and abundance of these species are compared according to their life-cycles, their biogeographic preferences and their estuarine dependence.
Tipo: Text
Ano: 1991
URL: https://archimer.ifremer.fr/doc/00482/59352/62136.pdf

Introduction et invasion de l'algue tropicale Caulerpa taxifolia en Méditerranée nord-occidentale
Provedor de dados: 5
Autores: Meinesz, A; Hesse, B.
The tropical alga Caulerpa taxifolia (Vahl) C. Agardh has been displayed over the last fifteen years in tropical aquaria at the Oceanographic Museum, Monaco. Its accidental introduction into the natural environment dates from 1984. It developed first in the sea immediately below the museum, and resisted winter temperatures of 11 to 13-degrees-C. Gradually the population spread over all types of substrate, including rock, sand and mud, and over a wide range of depth, 3 to 35 m, on this relatively exposed site. In summer 1990 we became aware of its presence both to the east and to the west of Monaco. To the east, it now occurs on the whole of the eastern side of Cap Martin (3 km from Monaco) and is spreading over the west face. To the west we have observed...
Tipo: Text
Palavras-chave: INTRODUCED SPECIES; CAULERPA-TAXIFOLIA; MEDITERRANEAN.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21268/18879.pdf

Métaux traces dans les sédiments d'une lagune méditerranéenne : l'étang de Thau
Provedor de dados: 5
Autores: Pena, G; Picot, B.
Analyses of mineralogy, granulometry and chemistry - aluminium,cadmium, chromium, copper, iron, lead, manganese, mercury, nickel, zinc, organic carbon, total nitrogen and phosphorus - are carried out in a Mediterranean lagoon: Etang de Thau. Shell-fish breeding and tourism make the Thau basin an important place for studying the impact of pollution within a lagoon environment. The spatial distribution of the metallic elements is related to the fine fraction (&lt; 63-mu-m) and to the organic matter concentration of the sediment. Multivariate analysis gives a global picture of the incidence of micropolluants. It reveals a boarder zone poor in metals and organic matter which is greatly eroded by the bottom current. Several zones in the north and centre of the...
Tipo: Text
Palavras-chave: SEDIMENTS; HEAVY METALS; MEDITERRANEAN LAGOON; POLLUTION.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21270/18881.pdf

Introduction into France of the Japanese oyster (Crassostrea gigas)
Provedor de dados: 5
Autores: Grizel, Henri; Heral, Maurice.
The Japanese oyster (Crassostrea gigas) has been introduced in France on a large scale to replace cultivation of the Portuguese oyster (Crassostrea angulata), affected by a viral disease. The importation took place from 1971 to 1975, with broodstock coming from British Columbia (Canada) and spat from Japan. Good growth rate and success of the natural setting on the French Atlantic coast attested to the success of this implantation, with a production which reached 80000 t by 1976. The precautionary measures associated with this transfer Iimited the implantation of an introduced fauna, 15 years after, to: Balanus amphitrite, Aiptasia pulchella and, on the Mediterranean coast, Undaria pinnatifida and Laminaria japonica. The authors also discuss the possible...
Tipo: Text
Palavras-chave: Crassostrea gigas; Oyster; Introduction; Crassostrea gigas; Huître; Introduction.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-2760.PDF

Biomass and production of two Halimeda species in the southwest new caledonian lagoon
Provedor de dados: 5
Autores: Garrigue, C.
Two algal communities on unconsolidated sand, dominated by two Caulerpa populations, were studied in the southwestern New Caledonian lagoon. Biomass, growth rates and production were measured at two stations over one year. Biomass and growth rate of Halimeda were estimated monthly by counting the number of new and lost segments on tagged plants and by weighing them. Production was assessed monthly by comparing two successive measurements. The average rates measured were 0.60 s f-1 d-1 (segment frond-1 day-1 ) for Halimeda incrassata and 0. 15 s f-1 d-1 for H. discoidea. Production in terms of organic carbon amounted to 3.79 g m-2 y-1 for H. incrassata and 3.37 g m-2 y-1 for H. discoidea. The production of H. discoidea population is subject to seasonal...
Tipo: Text
Palavras-chave: HALIMEDA; PRODUCTION; PHYTOBENTHOS; NEW-CALEDONIA; BIOMASS.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21277/18886.pdf

Essais de cryoconservation d'algues unicellulaires d'intérêt aquacole.
Provedor de dados: 5
Autores: Chevallier, Frédérik.
Cryopreservation tests were carried out for Platymonas "Batan" sp., P. suesica, Isochrysis aff galbana, Chlorella minutissima, Nannochloris occulata, Chaetoceros gracilis and C. "BA" sp. The focus of the protocol was based on the duration of incorporation and cryoprotector concentration (DMSO). Two methods were used to compare the effects of each freezing protocol for algae survival. The first method allows evaluating survival rate through orange acridine coloration and epifluorescence microscope readings. The second one requires culturing each sample and growth curbs are established through daily readings of algal solutions optical density. Freezing the samples was either done directly through liquid nitrogen freezing (-196°C) or through slow freezing,...
Tipo: Text
Palavras-chave: Freezing; DMSO; Liquid nitrogen; Micro algae; Congélation; DMSO; Azote liquide; Micro algues.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-1747.pdf

The impact of tributyltin (TBT) pollution on the Nucella lapillus (Gastropoda) populations around the coast of South-East England
Provedor de dados: 5
Autores: Gibbs, P; Bryan, G; Spence, S.
A survey of the Nucella lapillus populations around South-East England in November 1987 revealed imposex to be well developed in all areas. Population abundance of N. lapillus appeared unaffected at few localities; generally the syndrome was sufficiently advanced to cause sterility and population decline, notably in the Brighton-Newhaven area. The worst affected region appeared to be North Kent where the species was found to have disappeared entirely. TBT pollution, a well established cause of imposex, was found to be extensive (0.7-39 ng Sn/l in subsurface water samples); its impact on the abundance of N. lapillus in the region has been considerable.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37884/35965.pdf

A Tentative Age-based Assessment of the Northern Stock of European Hake
Provedor de dados: 5
Autores: Mesnil, Benoit; Guichet, Roger.
Due to difficulties in routinely ageing European hake, assessments of the stock have hitherto been carried out using length-based methods, and were thus restricted to pseudo-cohort analyses and long-term equilibrium projections under steady state assomptions. However, given the availability of numerical length-to-age conversion methods, it seems feasible to consider age-based assessments using the methodology of regular ICES working groups. In this paper, attempts are made to derive a time series of catches at age from the length compositions of international catches assembled by the ICES Hake Working Group for the period 1978-1990. The age-length key which is reconstructed in each year is also applied to the length composition of catches by selected...
Tipo: Text
Ano: 1991
URL: https://archimer.ifremer.fr/doc/00394/50568/51259.pdf

Cartographie et caractéristiques des sédiments superficiels du secteur conchylicole de l'étang de Thau
Provedor de dados: 5
Autores: Deslous Paoli, J.-m.; Sornin, J.-m.; Durand, F.; Chevalier, M.; Lagabrielle, R.; Pellissier, M.; Tournier, H.; Juge, C.
Sediments from the shell-fish culture areas in the Lagoon of Thau are mainly constituted of sand and mud elements ; at a depth of about 80 cm to 1 meter in the sediment, much coarser elements are found. These sediments are more clayey in the N-E corners of each area and in a general way, richer in organic matter than the other areas of the lagoon, with very negative oxido-reduction potentials. Ammonia and phosphate amounts in intersticial waters are very high. A gradient of concentration from the bottom towards the surface of the sediment is observed, thus inducing diffusing flows in the water column.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00039/15018/12345.pdf

Observations ichtyologiques effectuées en 1990
Provedor de dados: 5
Autores: Quero, Jean-claude; Du Buit, M.h.; Kergoat, Bernard; Laborde, Jean-louis; Morandeau, Fabien.
The authors give data on the catches during 1990 of some rare fishes to the French harbours: Chlamydoselachus anguineus, Oxynotus paradoxus, Sarda sarda, Katsuwonus pelamis, Centrolophus niger; Cubiceps gracilis et Stromateus fiatola. They give also data on Ihe catches with a bottom trawl of 3 Xiphias gladius. Some data on Mediterranean observations by helicopter on the behaviour of Cethrinus maximus are given. NOT CONTROLLED OCR
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-3681.pdf

Diversification des productions conchylicoles en Poitou-Charentes. L'élevage du pétoncle noir Chlamys Varia
Provedor de dados: 5
Autores: Bodoy, Alain; Garnier, Julien; Heurtebise, Serge; Nollet, V.; Chagot, D.
La croissance et la reproduction du pétoncle noir, Chlamys varia, ont été suivies sur un cycle biologique complet, dans un marais maritime. Cette croissance s'est avérée être nettement plus rapide qu'en rade de Brest, puisque la taille commerciale de 35 mm a été atteinte en un an. Les individus se sont reproduits au bout de la même période. Ceci montre qu'il est possible d'obtenir un cycle biologique très rapide.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00080/19152/16747.pdf

Les points chauds de la société des australes et de Pitcairn (Pacifique Sud) : approche volcanologique et pétrologique
Provedor de dados: 5
Autores: Binard, Nicolas.
Les extrémités sud-est des archipels de la Société, des Australes, et de l'alignement Mururoa-Gambier-Pitcairn (Pacifique Sud), sont le siège d'un volcanisme sous-marin caractérisant trois points chauds. Les structures volcaniques, dont les dimensions varient de 300 à 4000m de haut, s'édifient sur un plancher océanique d'une surface de l'ordre de 10.000 à 15.000km2. C'est la première fois qu'une étude comparative de trois points chauds est réalisée grâce à des observations faites par submersible, camera tractée, et bathymétrie fine (Seabeam). La confrontation des données permet de proposer une approche des principaux caractères structuraux, géologiques, et pétrologiques de régions où le volcanisme intraplaque se situe dans les premières phases de son...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00034/14508/11845.pdf

A comparative-study of nitrogen and carbon uptake by phytoplankton in a coastal eutrophic ecosystem (bay of Brest, france)
Provedor de dados: 5
Autores: Dauchez, S; Queguiner, B; Treguer, P; Zeyons, C.
Nitrogen (N-15) and carbon (C-14) uptake rates and hydrological, chemical and biological parameters were monitored at a single station during spring (March-April 1989) in a coastal eutrophic ecosystem of western Europe : the Bay of Brest. Before the spring growth of phytoplankton populations, total nitrogen and carbon uptake rates were low (almost-equal-to 0.3-mu-mol C.1(-1).h-1 and almost-equal-to 0.025-mu-mol N.l(-1).h-1). During the spring bloom, these uptake rates reached high values (0.5-mu-mol C.1(-1).h-1 and 0.28-mu-mol N.1(-1).h-1); at this time, nitrate was the main source of nitrogen production, although relative preference index (RPI) values showed that ammonium was the preferred nitrogen form for phytoplankton (RPI (NO3) &lt; 1 ; RPI (NH4) &gt;...
Tipo: Text
Palavras-chave: CARBON UPTAKE; EUTROPHIC ECOSYSTEM; NITROGEN UPTAKE; PARTICULATE MATTER; PHYTOPLANKTON.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21282/18891.pdf

Modélisation d'un écosysteme marin côtier soumis a l'eutrophisation : la baie de vilaine (sud bretagne). Etude du phytoplancton et du bilan en oxygène
Provedor de dados: 5
Autores: Chapelle, Annie.
The Bay of Vilaine (South-Brittany, France ) has been affected for many years by eutrophication process . Discoloured waters, oxygen depletion in bottom waters occured, being sometimes so drastic as in July 1982 that several ten tons of fishes and invertebrates were killed by anoxia. This coastal ecosystem is studied using a box model simulating the nitrogen cycle, oxygen and salinity. The model takes into account river inputs and exchanges with the ocean. It is calibrated and validated against several year measurements. The understanding of primary production and oxygen budget is improved. Phosphorus cycle simulation is then added in the model. The impact of different reductions of river nutrients on chlorophyll concentration and on hypoxia in the Bay are...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00015/12611/9490.pdf

Digestibilité de l'algue Skeletonema costatum par la palourde japonaise Ruditapes philippinarum : éléments d'optimisation appliqués à la vénériculture intensive en marais
Provedor de dados: 5
Autores: Sauriau, Pierre-guy; IFREMER - Laboratoire Ecosystèmes Conchylicoles (LEC) La Tremblade; ECOCEAN - Environnement Littoral &amp; Marin La Rochelle.
Le présent rapport se scinde en trois volets. le premier expose la genèse de l'application à l'aquaculture intensive d'une technique employée en agriculture intensive. Le second volet s'attache à comparer les résultats des calculs de taux de digestibilité acquis, d'une part, in vitro sous des conditions de débit circulant et de type nourriture variables et, d'autre part, in situ par prélèvement des palourdes directement dans le système d'élevage. Enfin le dernier volet contient l'analyse des la distribution spatiales des colonies algales de Skeletonema costatum dans une claire ostréicole expérimentale.
Tipo: Text
Palavras-chave: Vénériculture; Marais; Algue; Skeletonema costatum; Digestion; Ruditapes philippinarum; Bivalvia.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00144/25476/23629.pdf

Modeling the barotropic tides in the strait of sicily and tunisian shelf
Provedor de dados: 5
Autores: Molines, Jm.
In order to check the sea-level variability in the vicinity of Lampedusa Island (in the frame of Topex/Poseidon altimeter calibration), a numerical model of the tides for the Strait of Sicily and adjacent area has been performed. Cotidal and co-range charts for the main diurnal and semidiurnal constituents are drawn and the model results are compared with in situ data. Position of amphidromes for these constituents is also clarified: a strong semidiurnal resonance observed in the Gulf of Gabes is well reproduced in the model. Semidiurnal tidal currents are found to be important at the Adventure Bank (South-West of Sicily) and in the Gulf of Gabes. Diurnal tidal current, dominant on Adventure Bank, are due to energy trapped around the Western extremity of...
Tipo: Text
Palavras-chave: NUMERICAL MODELS; TIDES; HARMONIC CONSTITUENTS; MEDITERRANEAN; STRAIT OF SICILY.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21254/18867.pdf

Improvement of remote setting of the Pacific oyster (Crassostrea gigas) on French platic pipes
Provedor de dados: 5
Autores: Baud, Jean-pierre; Jolly, C.; Bodoy, Alain.
The oysters culture in France is based on a natural spatfall, collected on cultches in setting areas. The collectors are then transfered on intertidal parcs for development during 1.5 to 3 years. The subsequent ongrowing stage is performed after separating the oysters and putting them in bags or by off-bottom cultivation. In order to improve the stock turnover and to improve the rearing conditions for the juveniles, experiments were performed to define optimal conditions for remote setting. After considering the previous studies a standard density of 2 000 larvae per cultch (plastic pipe) was selected. This corresponded to an average, theoretical density of 2.3 larvae.cm-2. The resulting density, at the end of the growing stage should average 25 kg of...
Tipo: Text
Palavras-chave: Plastic pipes; Crassostrea gigas; Oysters; Natural spatfall; Oysters culture; Collecteur; Crassostrea gigas; Huîtres; Captage naissain; Ostréiculture.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-3044.pdf

Utilisation des bioessais sur les embryons de bivalves dans le cadre d'une surveillance des effets biologiques
Provedor de dados: 5
Autores: Quiniou, Francoise; Toularastel, France; Le Fevre-lehoerff, Geneviève.
La surveillance d'un milieu peut se faire par la mesure des concentrations de "contaminants" dans l'eau, la matière vivante et le sédiment. C'est d'ailleurs ce qui est réalisé par le RNO sur le littoral français depuis 1974. Le dosage de ces contaminants donne une évaluation des niveaux de leurs concentrations dans les zones étudiées. Un effet de l'accumulation des contaminants dans la matière vivante peut aussi être mesuré grâce aux techniques biochimiques du type mesure de l'Acetylcholinestérase, EROD (GALGANI, 1987). La mesure des effets biologiques sur les organismes marins peut être réalisée par le biais des bioessais. Ces derniers permettent d'évaluer la qualité biologique d'un milieu : eau, sédiment ou rejets et émissaires divers. (Les réponses des...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00132/24360/22360.pdf

Modele mathematique de dispersion/decroissance des bacteries rejetees dans l'estuaire de Morlaix
Provedor de dados: 5
Autores: Salomon, J C; Pommepuy, M.
A mathematical model of the the Morlaix Estuary has been set up, which provides a knowledge of currents, dispersion and bacterial contamination due to inputs from a sewage treatment plant (STP). Measured die-off rates appear very low (T90 from two days to several days). The model confirms these values and shows that physical dilution factors are responsible for a bacterial contamination decrease about one hundred times faster than mortality. The model is then used to seek ways of improving the present situation. It concludes that the best choice would be to increase the STP efficiency.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37876/35957.pdf

The mozambique channel revisited
Provedor de dados: 5
Autores: Donguy, Jr; Piton, B.
The meridian flow through the Mozambique Channel is investigated by the difference between the sea level on each side of the channel and by the influence of the wind components measured at two low islands. From these data, it is inferred that the resulting variations in meridian flows in the northern and southern Mozambique Channel are roughly in phase and that the meridian transport is subjected to a seasonal cycle. Moreover, three unpublished cruises (1974-1975) in the Mozambique Channel show an anticyclonic gyre in the northern part (12-degrees-16-degrees-S) and a large southward flow across the narrows of the channel. According to the results of the cruises, this northern anticyclonic gyre is submitted to seasonal and also year-to-year variations.
Tipo: Text
Palavras-chave: MOZAMBIQUE CHANNEL; MEAN SEA LEVEL; WIND; MERIDIAN FLOW; ANTICYCLONIC GYRE.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21275/18884.pdf

Contribution à l'étude d'une Rickettsiose de la coquille Saint-Jacques Pecten maximus (Mollusca : Bivalvia)
Provedor de dados: 5
Autores: Le Gall, Ghislaine.
A la suite de mortalités dans la population de coquilles St- Jacques, Pecten marimus, de la baie de St-Brieuc, un procaryote intracellulaire a été mis en évidence dans les branchies et apparenté à l'ordre des Ricketts iales sur la base de critères ultrastructuraux. Un protocole de purification, reposant sur des centrifugations différentielles et isopycniques, a été élaboré. Les protéines constitutives majeures et plusieurs activités enzymatiques ont été caractérisées. Des anticorps polyclonaux et monoclonaux ont été préparés et appliqués à des immunodiagnos tics de la rickettsie. Des fragments de restriction de l'ADN du procaryote ont été clonés et analysés en tant que sondes . Plusieurs fragments ont été séquencés et des oligonucléotides spécifiques ont...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00285/39618/38115.pdf

An introduction to japanese and french fisheries
Provedor de dados: 5
Autores: Bailly, Denis; Bourguignon, G; Kase, K.
Fisheries and aquaculture in Japan and France are very different in terms of scale and management schemes. Japan, a leading country in the world for fisheries, has developed a unique mixed system of community based coastal management and licensing schemes for off-shore and distant-water fisheries. Increasing demand, changes in consumption and the heavy constraint of access limitation to third countries waters, make Japan more and more depending upon imports. Though few effort and access limitation schemes are locally implemented in France, most of the management rules comply with the Common Fisheries Policy (CFP). The basic lines are the technical measures, the Total Allowable Catches (TACs) allocated into quotas at the regional level and the reduction of...
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-4153.pdf

Etude experimentale de la maturation ovocytaire chez Pecten maximus et Crassostrea gigas (Mollusca, Bivalvia)
Provedor de dados: 5
Autores: Widowati, L; Cochard, Jean-claude; Dorange, G; Le Pennec, M.
To date, it has been impossible to fertilize the oocytes of ripe Pecten maximus obtained by gonad stripping as it is routinely done in hatchery with Crassostrea gigas . The events occurring between artificial induction of spawning and normal fertilization were studied experimentally in order to explain this difference. Fertilization and rearing trials were performed on oocytes obtained from the gonads of both species by scarification, by aspiration from genital ducts (of P. maximus only) and after spawning. Every batch of oocytes was fixed for histological study. Serial sections of the gonad of a fixed spawning P. maximus were made to reveal modifications of the nucleus of the oocytes during their expulsion. In P. maximus the stripped oocytes can be...
Tipo: Text
Palavras-chave: Crassostrea gigas; Pecten maximus; Bivalvia; Marine molluscs; Animal reproductive organs; Larvae; Fecundity; Experimental research; Spawning; Sexual maturity.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1632.pdf

Distribution et taxonomie des Howella (Perciformes, percichthyidae) de l'Atlantique
Provedor de dados: 5
Autores: Post, A.
On the basis of geographical distribution and morphological analysis of the Atlantic Howella , two subspecies of H. brodiei have been established, H. brodiei brodiei for the IndoPacific and H. brodiei atlanlica for the tropical and boreal Atlantic. H. sherborni has been recognized as a separate species, probably distributed circumglobally in southern Ocean but presently recorded only from the South Atlantic, the central South Pacific and from off southern and south-eastern Australia respectively. H. b. atlanlica and H. b. brodiei are distinct by having 3 scale rows between the lateral line and the origin of the second dorsal fin, while H. sherborni has 4 scale rows there. H. sherborni is in geographical contact with the two subspecies while H. b. brodiei...
Tipo: Text
Palavras-chave: Taxonomy; Geographical and bathymetric distributions; Atlantic ocean; Howella Brodiei atlantica n. ssp.; Howella sherborni; Percichthyidae.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-3769.pdf

Present-day evolution of sand waves on a sandy shelf bank
Provedor de dados: 5
Autores: Lankneus, J; Moor, Gde.
A sand wave field on the northern extremity of the Kwintebank (Belgian continental platform) was mapped three times over a period of one year with the help of side-scan sonar and echosounder. The geometric characteristics of the sand waves are described in detail. Shifting of the sand waves occurred in the directions of both their gentle and steep slopes. The net movement over one year is, however, minimal.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37886/35967.pdf

Impact of the sewage sludge discharged in the Barcelona continental shelf
Provedor de dados: 5
Autores: Palangues, A; Diaz, Ji; Maldonado, A.
Sewage sludge from the Barcelona-Besos wastewater treatment plant has been discharged to the middle continental shelf off Barcelona through a pipeline 4 km in length since 1979. Around the mouth of the pipeline a waste deposit has settled in the transition area between the muddy prodeltaic sediment and the sandy relict sediment of the outer part of the shelf, covering an area of 1 km super(2) to a maximum thickness of about 2.5 m. A fraction of the particles discharged through the pipeline rises to the surface water and can generate a column of suspended waste rising from the mouth of the pipeline to the surface. These particles concentrate at the surface levels of the water column, forming a patch of several hundred square metres of very turbid water....
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00267/37865/35946.pdf

Le complexe «Dinophysis acuminata»: identification des espèces le long des côtes françaises
Provedor de dados: 5
Autores: Lassus, Patrick; Bardouil, Michele.
From seawater samples collected between 1984 and 1989 in 12 French coastal areas, a morphometric study have been realised on Dinophysis genera restricted to "acuminata" like species. Simple morphological criterias are given as suitable for discrimination of four dominant species occurring during toxic episodes in shellfish farms (Diarrheic Shellfish Poisoning): Dinophysis c-closed-integral. sacculus, D. c-closed-integral. acuminata, Dinophysis sp. and D. c-closed-integral. norvegica. This last species cannot be included in the "acuminata complex" and produces temporary blooms along southern Brittany coasts. Pending a more precise diagnosis it is recommended to clarify the relationship between toxin composition and each species previously described.
Tipo: Text
Palavras-chave: Europe; Thallophyta; Algae; Répartition géographique; Systématique; Morphométrie; France; Zone littorale; Identification spécifique; Pyrrophycophyta; Répartition géographique; Systématique; Morphométrie; France; Zone littorale; Identification spécifique; Pyrrophycophyta; Dinophysis; Répartition géographique; Systématique; Europe; Thallophyta; Algae; Geographic distribution; Taxonomy; Morphometry; France; Littoral zone; Specific identification; Pyrrophycophyta; Geographic distribution; Taxonomy; Morphometry; France; Littoral zone; Specific identification; Pyrrophycophyta; Geographic distribution; Taxonomy; Morphometry.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00133/24471/22486.pdf

Environmental-conditions and ecophysiological mechanisms which led to the 1988 chrysochromulina-polylepis bloom - an hypothesis
Provedor de dados: 5
Autores: Maestrini, Sy; Graneli, E.
Information available on the 1988 Chrysochromulina polylepis bloom in Scandinavian coastal waters is evaluated. Special attention is paid to the early bloom stage and the sequence of both environmental and physiological mechanisms leading to the bloom, and a tentative, integrated timing schema is given of causes which led to the observed events. Environmental conditions favourable for Chrysochromulina polylepis are considered to have resulted from : a) an exceptionally high runoff of nitrogen-rich water in winter and early spring; b) strong mixing of the water column, immediately followed by a long period of vertical stability and stratification; c) a diatom bloom 30 % larger than usual, peaking around 20 March; and d) a second diatom bloom in mid April,...
Tipo: Text
Palavras-chave: CHRYSOCHROMULINA POLYLEPIS; TOXIC-ALGAL BLOOM; GRAZER REPELLENT; PHOSPHORUS LIMITATION; EUTROPHICATION.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21267/18878.pdf

Contribution à l'étude des herbiers de Zostera noltii du Bassin d'Arcachon : Dynamique, production et dégradation, macrofaune associée
Provedor de dados: 5
Autores: Auby, Isabelle.
This study aimed to characterize the ecology of the seagrass Zostera noltii in the Bassin d'Arcachon. These seagrasses, which belong to the family of Potamogetonaceae occupy in the Bay for about three quarters of the area of ​​intertidal areas. Despite their large size and ecological importance, this grass never had previously be studied. This thesis deals with eelgrass populations (distribution, growth, production and recycling) and the macrofauna associated with them (spatial and temporal variation of the nature and structure of animal populations). In addition to this descriptive approach, this work has also helped to quantify the participation of seagrass beds on the balance sheet of the organic matter in the Arcachon basin.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00044/15556/12945.pdf

Atmospheric corrections and interpretation of marine radiances in czcs imagery, revisited
Provedor de dados: 5
Autores: Andre, Jm; Morel, A.
In a previous study (Bricaud and Morel, Oceanologica Acta, 1987), a reflectance model developed for oceanic Case 1 waters was introduced into CZCS data processing, mainly with the aim of improving the atmospheric correction scheme and permitting discrimination between Case 1 and turbid Case 2 waters. The present paper, not limited to CZCS, examines the possible extension of the use of this reflectance model. In particular, it is proposed that the relationships required in iterative computations when estimating marine radiances in the four (visible) channels be those which derive from the model rather than the empirical expressions. Also, in order to ensure an internal coherency, it is proposed to operate the modelled relationships between the reflectance...
Tipo: Text
Palavras-chave: REMOTE-SENSING; OCEAN COLOR; REFLECTANCE MODEL; PHYTOPLANKTON; AEROSOL.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21260/18871.pdf

Simulation of fluorescence variability in estuaries and DOM
Provedor de dados: 5
Autores: Souza Sierra, Mmde; Donard, Ofx.
Recent studies have revealed differences between the fluorescence spectra of coastal and open seawater. We investigate here the extent to which abiotic parameters such as pH, ionic strength and concentration of dissolved fluorescent matter could be related to this phenomenon. First, pH effect was addressed alone. Second, a 2 super(3) factorial experimental design was used to estimate the individual and/or combined contribution of the parameters mentioned above to the spectroscopic characteristics of dissolved organic matter represented here by the Suwannee River Fulvic Acid. High pH variations modify the spectroscopic characteristics of organic matter both qualitatively and quantitatively and those effects seem to be related to the dissociation of the...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00267/37870/35951.pdf

Dynamics of nutrient cycling of the Valdes Bay-Punta Cero pond system (Peninsula Valdes, Patagonia) Argentine
Provedor de dados: 5
Autores: Esteves, Jl; Varela, De.
Valdes Bay constitutes a very interesting land-sea interface (LSI) at Peninsula Valdes. A gravel bank separates the bay from the open sea. The general characteristics (physical, chemical and biological) of this ecosystem and the chemical composition of the seawater coming in and out were analyzed. Nutrient cycling (nitrogen and phosphate) was very intense and involved a high primary productivity. These nutrients were principally produced at the gravel bank, where oxygen was consumed by heterotrophic activity and nitrification processes. The latter process consumed 1 to 7% of the oxygen. Extrapolating to the 35-km bank, a value of 6.8 metric tons of nitrogen would be produced daily.
Tipo: Text
Palavras-chave: NUTRIENT CYCLE; LAND-SEA INTERFACE; PENINSULA VALDES; PATAGONIAN; SOUTH ATLANTIC OCEAN.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21273/18883.pdf

Ecophysiologie in situ de l'huître Crassostrea gigas dans un milieu macrotidal (bassin de Marennes-Oléron - Chapus 1991)
Provedor de dados: 5
Autores: Guezennec, Loic; Prou, Jean; Heral, Maurice; Razet, Daniel; Bougrier, Serge; Soletchnik, Patrick.
L'expérience menée lors du stage fait suite à deux expériences similaires menées en 1988 et 1990. Elle vise à étudier le comportement d'une population d'huîtres (100 individus) soumise aux variations du milieu naturel. La durée de l'expérience (3 semaines) permet de tester les effets simultanés des cycles haute mer. basse mer et celui des vives·eaux. mortes-eaux. De plus. les données acquises en continu sur le milieu (fluorescence et turbidité. salinité. température) permettront le calage des modèles courantologiques et sédimentologiques. Le choix du mois de mai pour l'expérience est déterminé par l'apparition. en général. d'un bloom phytoplanctonique à cette période de l'année. Les expériences précédentes (1988 et 1990) ont permis déjà d'appréhender la...
Tipo: Text
Palavras-chave: Ecophysiologie; Huître creuse; Crassostrea gigas; Bassin de Marennes-Oléron; Chapus; Charente Maritime.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21308/18921.pdf

Coupled 2-d and 3-d modeling of coastal hydrodynamics
Provedor de dados: 5
Autores: Lazure, Pascal; Salomon, Jean-claude.
The hydrodynamics of coastal zones often reflect the combined action of tides, winds and density differences. Usual two-dimensional numerical models are only partly suited to the study of such mechanisms. A set of two 2-D and 3-D numerical models is described here. Its main characteristics are: an automatic coupling, a specific procedure for shoaling banks, a reduced vertical coordinate system, and a resolution by finite differences. As an example, the complete set is applied to the region of the Loire and Vilaine estuaries in South Brittany (France). Results prove to be coherent with experimental data and enhance our knowledge of the local hydrodynamics.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21248/18862.pdf

Variations spatiales des concentrations métalliques (Cd, Cu, Pb) des eaux de la mer d'iroise
Provedor de dados: 5
Autores: Amiard, Jc; Queguiner, F; Camus, Y.
Mean Cd, Cu and Pb concentrations in waters of the Celtic Sea surface layer were found to be 12.4, 55.8 and 36.6 ng.l-1 respectively. From 10 meters below the surface to a depth of 4,400 m, the values are of the same order of magnitude, even in oceanic waters close to the continental slope. Nevertheless, we noticed a wide spread from maxima to minima especially near the surface. On the basis of metal concentration data together with physical (temperature, salinity), chemical (phosphates, nitrites, nitrates, silicates, ammonium and oxygen) and biological (chlorophyll a and phaeophytin rates) parameters, the surface waters of the Celtic Sea can be subdivided into four zones: one inside the Ushant front; a second, called "mer d'Iroise", and finally, south and...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21372/18972.pdf

La contamination chimique de l'Adour, de la Nivelle, et de la Bidassoa : Bilan des observations du RNO matière vivante
Provedor de dados: 5
Autores: Claisse, Didier.
On a quarterly basis, the National Monitoring Network (RNO) carries out a monitoring of the concentration levels of some contaminants in soft parts of mussels and oysters from the French shore.  Hight levels of mercury have been identified in the mouth of the Nivelle, cadmium in the mouth of the Adour, and PCBs in the Nivelle and the Bidassoa, all sites located to the south of the French Atlantic coast. This report was written on request of the sub-prefecture of Bayonne, and presents the results of the RNO in this part of France, in a synthetic form.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00017/12787/9728.pdf

Does the prevalence of Bonamia  and Marteilia diseases be reduced on flat oysters (Ostrea edulis) of Atlantic and Mediterranean origin, when they are reared together with the Japanese oyster (Crassostrea gigas) in tidal ponds?
Provedor de dados: 5
Autores: Bodoy, Alain; Bougrier, Serge; Geairon, Philippe; Garnier, Jacqueline; Boulo, Viviane; Heurtebise, Serge.
The flat oyster Ostrea edulis was originally reared in several regions of the European waters. The tidal saline ponds on the Atlantic coasts of France were highly productive before being hit by two consecutive epizooties. Parasitic diseases were described on this species, both of them leading 10 economic losses, as heavy mortalities have usually been recorded before the oysters reach the commercial size. Repeated experiments showed that the two diseases, Marteilia refringens and Bonamia ostreae are still active in this environment. Recently, some evidences were given that haemocytoblasts of Crassostrea gigas had the ability to lyze the Bonamia cells. Therefore, in an experiment of contiguous culture of the two species of oysters, the growth, mortality and...
Tipo: Text
Palavras-chave: Molluscs; Mortalities; Growth; Pathology; Crassostra gigas; Ostrea edulis; Marteilia refringens; Bonamia ostreae.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-3049.pdf

A strategy for the development of remote sensing applications and GIS uses in french Polynesia
Provedor de dados: 5
Autores: Chenon, Felix; Loubersac, Lionel; Varet, Hervé.
Once the specific geographical context of French Polynesia and its needs about the use of results od Remote Sensing and Geographic Information have been presented and situated, the strategy used and developped both by the territory of French Polynesia and Ifremer in partnership is introduced. It comprises four parts and tries, by involving directly the end users, to make known the use of data of the high technology tools represneted bu Space Remote Sensing and Geographic Information Systems. Several types of the products are proposed and regional extrapolation plans are offered consequently.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00143/25437/23590.pdf

Localization and characterization of acid phosphatase activity in Bonamia ostreae (Ascetospora), an intrahemocytic protozoan parasite of the fIat oyster Ostrea edulis (Bivalvia)
Provedor de dados: 5
Autores: Hervio, Dominique; Chagot, D; Godin, P; Grizel, Henri; Mialhe, Eric.
Acid phosphatase activity was cytochemically detected at the ultrastructural level in the protozoan Bonamia ostreae, an intrahemocytic parasite of the flat oyster Ostrea edulis. Lead nitrate was used as capture agent for phosphate liberated during the hydrolysis of the substrate (cytidine 5' monophosphate). Lead phosphate precipitation, indicative of enzyme activity, was located in membrane-bound organelles corresponding to the cytoplasmic inclusions known as 'dense bodies'. Acid phosphatase activity level and sodium L-tartrate inhibition were measured spectrophotometrically from a purified parasite suspension. The possible involvement of this enzyme in intracellular survival of B. ostreae is discussed.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00182/29311/28273.pdf

Etude de salubrite du gisement naturel de coques (Cerastoderma edule) de la plage Benoit en Baie du Pouliguen-Loire-Atlantique (1989-1990)
Provedor de dados: 5
Autores: Catherine, Martial; Beliaeff, Benoit; Pezeron, Annie.
Le gisement naturel de coques de la plage Benoît, situé en baie du Pouliguen, a été classé en zone insalubre en juin 1988. Depuis des travaux ont été réalisés sur le réseau d'assainissement. Cette étude est destinée à montrer l'état de salubrité bactériologique de cette zone. La plage Benoît reçoit des eaux polluées par l'intermédiaire de l'étier du Pouliguen. les principales causes de contamination fécale sont : - les eaux usées domestiques des hameaux non raccordés, - le dysfonctionnement du couple réseau d'assainissement/station d'épuration en période estivale. Le traitement des données bactériologiques recueillies au cours de la période juillet 89/juillet 90 prend en compte l'influence des paramètres hydroclimatiques sur la distribution de la...
Tipo: Text
Palavras-chave: Plage Benoit; Coques; Classement; Pollution; Coliformes fécaux; Courantologie; Météorologie; Arrêté; Avis.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00132/24278/22276.pdf

Mise au point de méthodologies de microfécondation chez des mollusques bivalves
Provedor de dados: 5
Autores: Rousseau, Christophe.
La microinjection d'ovocytes est une technique relativement récente puisque les premiers essais datent des années 60. Parallèlement à des applications en biologie moléculaire et notamment en transfert de gènes (Hitchcock et al., 1987; Jaenisch, 1988), de nombreuses expérimentations ont porté sur la microinjection de spermatozoïdes (Tableau 1a). Ces travaux ont eu pour but de comprendre les mécanismes qui régissent la fécondation et sa spécificité (réaction membranaire, activation, réaction nucléaire) et qui par conséquent interviennent dans les processus déterminant une espèce en tant qu'entité isolée du point de vue de la reproduction des autres espèces (Mayr, 1974).
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00430/54198/55541.pdf

Review of the reproductive physiology of the scallop, Pecten maximus, applicable to intensive aquaculture
Provedor de dados: 5
Autores: Devauchelle, Nicole; Mingant, Christian.
This paper presents a summary of information on reproduction biology in the scallop, Pecten maximus, which is required for the successful reseeding and intensive aquaculture programs developed in France since 1982. Data are presented on the following subjects: environmental factors that sustain gametogenic activity and the time of year this activity occurs; biochemical changes that are associated with gametogenesis; the consistency of egg quality; and development of a simple test to predict egg quality.
Tipo: Text
Palavras-chave: Aquaculture; Pecten maximus; Ecloserie; Physiologie de la reproduction; Embryon; Gamète; Aquaculture; Pecten maximus; Scallop; Hatchery; Reproductive physiology; Egg quality; Embryo; Gamete.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00038/14890/12216.pdf

Modelisation of oyster shell growth at 3 stations in the Patuxent river (Chesapeake Bay)
Provedor de dados: 5
Autores: Prou, Jean; Goulletquer, Philippe; Bacher, Cedric.
In oyster production area the determination of the stock, estimation of mortality and growth rates are determinant for knowledge of the fishery. Growth models can be used to predict the time to reach marketable size (76 mm in Chesapeake Bay). They are also important in term of management, when they can predict the future value of the stock (Askew, 1978). Oyster growth models can be built by analysing growth of natural oysters but absolute age is orten unknown. Many authors report growth data in Chesapeake Bay for suspended oyster culture. Unfortunalely, modelisation of the growth was not developed. In that study oyster, shell growth models have been established at three stations in the Patuxent river. Seasonal eITects on growth were integrated in the model
Tipo: Text
Palavras-chave: Modelisation; Oysters; Crassostrea virginica; Growth; Chesapeake Bay.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00200/31109/29512.pdf

Les reserves energetiques de Mytilus edulis : Comparaison des strategies developpees dans la baie de Gdansk (Pologne) et le bassin de Marennes Oleron (France)
Provedor de dados: 5
Autores: Deslous, P; Wolowicz, M; Boromthanarat, S.
Physiological processes of two populations of Mytilus edulis from the Atlantic coast (Marennes-Oleron, France) and from the Baltic coast (Gdansk, Poland) are compared. These parameters are discussed according to the physiological state of the populations (gametogenesis, spawning) and to the environmental abiotic (temperature, salinity) and biotic measurements (seston, chlorophyll). Two periods induce the use of energetic reserves from the flesh. The first one is due to the reproduction period (between February and May in the Bay of Marennes-Oleron and during June-July in the Bay of Gdansk), the second one to the bad winter trophic conditions. The physiological answers of these two populations during the two periods shows that different strategies take...
Tipo: Text
Palavras-chave: ANE; France; Poitou Charentes; Marennes Oleron Bay Mytilus edulis Bivalvia Marine molluscs Lipids Carbohydrates Metabolism Chlorophylls Biotic factors Energy budget Salinity effects Temperature effects Gametogenesis Spawning Animal physiology.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1717.pdf

L'expérience de l'exportation de la chevrette Macrobrachium rosenbergii en Guyane française
Provedor de dados: 5
Autores: Lacroix, Denis; Maubras, Yann.
L'élevage de la chevrette Macrobrachium rosenbergii a été introduit en Guyane au début de la décennie 80 pour aider le développement économique de ce département. Les atouts naturels de cette région permettaient d'envisager d'emblée une culture d'exportation vers le marché métropolitain. Les premiers bassins sont ensemencés en 1983 et la production dépasse la capacité d'absorption du marché local dès 1986 (36 t.). La SICA des producteurs tente d'écouler en 1987 les dizaines de tonnes en stock sur le marché de gros de la métropole mais se heurte à la concurrence de produits similaires, beaucoup moins chers, en provenance du Sud-Est-Asiatique. En 1987, une étude de marketing montre qu'il existe un marché potentiel pour la chevrette à un prix élevé mais à des...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00040/15154/12495.pdf

Determination of sediment accumulation and mixing rates in the gulf of lions, mediterranean-sea
Provedor de dados: 5
Autores: Zuo, Zz; Eisma, D; Berger, Gw.
Sediment mixing and accumulation rates in the Gulf of Lions were determined, applying the Pb-210 and Cs-137 dating methods to a total of 20 boxcores taken in 1987, 1988 and 1989. The distribution of excess Pb-210 profiles indicated the presence of surface mixed layers in the nearshore sediment cores which ranged from 3 to 15 cm. The apparent Pb-210 accumulation rates varied from 0.02 to 0.63 cm.yr-1 in this study area. Rates were highest near the river mouth of the Rhone and decreased with increasing water depth and increasing distance from the river mouth. Observed depths of Cs-137 penetration within the sediments were compared with depths predicted from the surface mixed layer thickness and the Pb-210 accumulation rate. These showed a general agreement...
Tipo: Text
Palavras-chave: GULF OF LIONS; 210PB; 137CS; BIOLOGICAL MIXING; ACCUMULATION RATE.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21255/18868.pdf

The retention of cadmium and zinc in appendicularian houses
Provedor de dados: 5
Autores: Fisher, Ns; Nolan, Cv; Gorsky, G.
The discarded houses of appendicularians can be important components of marine snow and might therefore be instrumental in mediating the vertical flux of metals from surface waters in oceanic ecosystems. Their significance in this regard depends on the retention of metals in these organic debris. To assess this, an experiment was conducted in which the release of cadmium and zinc from discarded houses of the appendicularian Oikopleura longicauda was studied using gamma-emitting radiotracers. The retention curves of the two metals conformed with a single exponential decay loss model. The retention half-times were of the order of two days, suggesting that sinking appendicularian houses would not transport these metals to deep ocean waters but could...
Tipo: Text
Palavras-chave: APPENDICULARIANS; CADMIUM; ZINC; LARVACEANS; VERTICAL TRANSPORT.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00103/21376/18976.pdf

Evolution temporelle de la composition de la colonne d'eau pendant un cycle vives eaux- mortes eaux
Provedor de dados: 5
Autores: Prou, Jean.
Premier bassin ostréicole français, Marennes-Oléron est un écosystème complexe dont la compréhension nécessite la mise en place d'études multidisciplinaires intégrées. L'IFREMER y développe depuis 1985 un programme de recherche axé sur la connaissance des écosystèmes aquacoles. L'Unité de Recherche des Ecosystèmes Aquacoles (DRV/RA/UREA), basée à La Tremblade est le principal support de ce programme. [Extrait introduction]
Tipo: Text
Palavras-chave: Charente Maritime; Marennes Oléron; Modèle mathématique; Matière suspension; Courantologie; Marée; Echantillonnage; Variation temporelle; Colonne eau.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-3844.pdf

Preparation and characterization of monoclonal antibodies against neoplastic hemocytes of Mytilus edulis (Bivalvia)
Provedor de dados: 5
Autores: Noel, Danielle; Boulo, Viviane; Chagot, Dominique; Mialhe, Eric; Paolucci, Francis; Clavies, Christine; Hervaud, Eric; Elston, Ralph.
Mytilus edulis develop progressive and fatal hemocytic neoplasia. We have generated monoclonal antibodies using neoplastic hemocytes from highly infected individuals collected from Puget Sound in Washington State (USA). Twenty-seven monoclonal antibodies against neoplatic cell antigens were obtained. Specificity of 2 purified antibodies, 14F1 and 16G10, was demonstrated by immunofluorescence when  incubated with neoplastic hemocytes, whereas these anbidodies did not react with normal cells. This specificity was confirmed by immunogold labelling and electron microscopic visualization. The technique permitted localization of the epitopes recognized by the monoclonal antibodies on the plasma membrane. These monoclonal antibodies are suitable reagents for...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-2757.pdf

Passage de la marée au dessus d’un talus. Etudes des processus linéaires et non linéaires. Application au Golfe de Gascogne.
Provedor de dados: 5
Autores: Garreau, Pierre.
Le talus continental est une zone charnière pour la dynamique des masses d'eau. Du point de vue des ondes fluides, il peut -être soit un obstacles sur lequel elles se réflechissent partiellement comme la marée, soit un guide comme pour les ondes de Rossby topographiques. Dans ce mémoire est abordé le passage de la marée au dessus d'un talus rectiligne uniforme dans une approche linéaire puis non linéaire. La création d'un courant le long d'un talus idéalisé de marée par les effets non lineaires est ensuite discuté. Dans cette approche, le courant résiduel eulérien, n'est pas accompagné par un transport lagrangien de masse d'eau le long du talus.  
Tipo: Text
Ano: 1991
URL: https://archimer.ifremer.fr/doc/00591/70316/68351.pdf

Etude histologique et ultrastructurale d'une microsporidie parasite du pétoncle Chlamys varia
Provedor de dados: 5
Autores: Nollet, Virginie.
L'étude histologique et ultrastructurale présentée dans ce rapport à permis de décrire pour la première fois chez le pétoncle Chlamys varia un parasite appartenant à l'ordre des Microsporidies. A ce jour, il existe peu de microsporidies inféodées aux mollusques bivalves (MAURAND et LOUBES, 1979 ; JONES, 1981) alors qu'elles sont nombreuses pour les insectes et les crustacés pénéides. Les Microsporidies parasites de mollusques bivalves appartiennent au genre Steinhausia ou ont été placées dans le groupe collectif Microsporidium lorsqu'elles sont imparfaitement déterminées. La Microsporidie de Chlamys varia diffèrent nettement de celles du genre Steinhausia par la taille, la forme des spores et le nombre de tours de spires du filament polaire. Des études...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00408/51907/52532.pdf

Sur les "upwellings" équatorial et côtier (5°N) dans le Golfe de Guinée
Provedor de dados: 5
Autores: Colin, C.
The wind, temperature and current data collected during the joined French-USA FOCAL/SEQUAL programme carried in the equatorial Atlantic band in 1983 and 1984, allowed for the first time a simultaneous study of both the equatorial and coastal (5-degrees-N) upwellings along 4-degrees-W. At the equator, the decreases of both the surface temperature and the depth of the thermocline in boreal summer are correlated with the zonal component of the local windstress in the period band 1-2 months. This corresponds to the time required by the thermocline to lift up at 0-4-degrees-W in the presence of an easterly wind. The local wind cannot however explain the entire vertical variability of the thermal structure at 0-4-degrees-W. The correlation function shows in...
Tipo: Text
Palavras-chave: GULF OF GUINEA; UPWELLING; EQUATOR; ADVECTION; DIFFUSION.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21252/18865.pdf

Sur l'origine des phosphates de l'atoll corallien de Nauru
Provedor de dados: 5
Autores: Bernat, M; Loubet, M; Baumer, A.
Phosphates from the Nauru atoll lie on a karstic structure developed at the expenses of a coral reef. These formations are fluorapatites low in carbonate, with less fluorine than common marine carbonate-fluorapatites (CFA). At least one of the deposits is from the last interglacial era (Th-230-U-234 dating). Rare Earth spectra seems to be affected by the dissolution-precipitation reactions leading to the formation of the carbonate-fluorapatite. But U and Sr isotopic ratios support the marine origin of most of these formations, except for one result, which give a Nd-143/Nd-144 ratio indicating a slight volcanic influence. Our results and the literature reports favorise the hypothesis that these phosphates originate from the endo-upwelling of phosphorus rich...
Tipo: Text
Palavras-chave: PHOSPHATES ATOLLS ISOTOPES U; TH; SR.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21374/18974.pdf

Le stress du passage en mer de post-larves de coquilles Saint-Jacques (Pecten maximus) issues d'écloserie
Provedor de dados: 5
Autores: Philippe, Régis.
Le transfert en mer de post-larves de coquille Saint-Jacques depuis la nurserie, à terre, jusqu'à la station de prégrossissement, en mer, provoque de faibles survies : 20 à 50 % L'étude du passage en mer montre 2 stress élémentaires principaux : la dé-fixation des post-larves et leur émersion pendant le transport (l'effet des chocs thermiques n'a pas été étudié ici). Quelques comparaisons de lots de post-larves dé-fixées ou émergées, montrent que la cause principale de mortalité serait la dé-fixation. La dernière partie de cette étude aborde des essais de transfert sans dé-fixation, à l'aide de supports-collecteurs immergés pendant l'élevage post-larvaire. Les survies au passage en mer apparaissent beaucoup plus satisfaisantes (64 à 100 % dans la plupart...
Tipo: Text
Palavras-chave: Coquille Saint-Jacques; Pecten maximus; Naissain; Passage en mer; Stress; Dé-fixation; Emersion; Collecteurs.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00422/53377/54221.pdf

Le développement socio-économique dans les DOM-TOM : état des lieux
Provedor de dados: 5
Autores: Salmon, J.m.; Antona, Martine.
The goal of this study was to provide economic data to align Ifremer's research programme with the global socio-economic context, which is the crux of this work. Although the economies of the French Overseas Departments and Territories are poorly understood in mainland France, a brief macroeconomic analysis shows that they have the following main features: steady, but unbalanced growth, as indicated by high unemployment rates and low trade indices, and an overdeveloped services sector. This situation can be explained by an economic growth regime specific to the French overseas regions. It is based on, for the most part, public subsidies, a voluntary strategy promoted by the public authorities to raise the standards of living in the overseas regions.
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-4094.pdf

La contamination par le cadmium des poissons et crustacés de l'étang de Bages-Sigean
Provedor de dados: 5
Autores: Claisse, Didier; Aranda, Alain; Auger, Dominique.
Les résultats du Réseau National d'Observation de la qualité du milieu marin (RNO), et d'une étude menée par Ifremer en avril 1990, ont montré une forte contamination de l'étang de Bages-Sigean (Aude) par le cadmium. Cette contamination a été mise en évidence dans l'eau, le sédiment et les moules.  A la demande de la préfecture de l'Aude, une campagne de prélèvement de poissons, crevettes et crabes a été organisée en avril 1991 afin d'établir les niveaux de contamination des produits de la pêche de l'étang. Les analyses ont porté sur le muscle d'anguilles, de mulets, d'athérines, de gobies, de crevettes, ainsi que sur un mélange de chair de crabes verts.  Les concentrations en cadmium mesurées sur l'ensemble de l'échantillonnage n'excèdent pas 0.007 mg/kg,...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00016/12698/9619.pdf

La conchyliculture en rivière d'Etel (Morbihan) - Première partie : les données socio-économiques (1988)
Provedor de dados: 5
Autores: Le Gars, Jean-claude.
La "Rivière d'Etel" vaste ria de 2500 ha, a vu naître l'ostréiculture dans ses eaux il y a tout juste un siècle avec l'arrivée de pêcheurs de l'Ile de Groix.  Après avoir connu l'élevage des huîtres plates indigènes et des huîtres creuses d'origine portugaise anéanties par plusieurs épizooties, ce centre conchylicole morbihannais s'est essentiellement reconverti à l'élevage et l'affinage des huîtres creuses 'Japonaises". D'autres élevages de coquillages existent tels ceux de coques et de palourdes; 165 professionnels disposent actuellement de 448 ha de Domaine Public Maritime répartis en 745 parcs.  Pour diversifier leurs propres productions et satisfaire les acheteurs français et ceux des proches pal.'s étrangers, les conchyliculteurs de la rivière d'Etel...
Tipo: Text
Palavras-chave: Conchyliculture; Pêche à pied; Données socio-économiques; Rivière d'Etel; Morbihan.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00100/21099/18725.pdf

Importations de coquillages en Ille-et-Vilaine (1986 à 1989)
Provedor de dados: 5
Autores: Gerla, Daniel.
Le rapport présente pour les années 1986 à 1989, l'analyse des importations de coquillages étrangers qui ont transité par le poste de douane de St-Malo, ou qui ont été immergés par les entreprises d'Ille-et-Vilaine. Les opérations réalisées pour la consommation directe, suscitent quelques interrogations quant à la réelle destination des produits. La filière consommation différée, avec immersion des coquillages, concerne essentiellement les moules. Elle ne rentre pas en concurrence directe avec la production locale, mais se présente comme un complément de cette activité (périodes de ventes décalées dans le temps).
Tipo: Text
Palavras-chave: Importation; Coquillage; Ille-et-Vilaine.
Ano: 1991
URL: https://archimer.ifremer.fr/doc/00441/55256/56744.pdf

Sulfide-Driven Autotrophic Balance in the Bacterial Symbiont-Containing Hydrothermal Vent Tubeworm, Riftia pachyptila Jones
Provedor de dados: 5
Autores: Childress, Jj; Fisher, Cr; Favuzzi, Ja; Kochevar, Re; Sanders, Nk; Alayse, Anne-marie.
Hydrothermal vent tubeworms, Riftia pachyptila Jones, were maintained alive and studied on board ship using flow-through pressure aquaria. Simultaneous measurements of O2, SIGMA-CO2, SIGMA-H2S fluxes showed that the intact symbioses reach maximum rates of uptake of SIGMA-CO2 (&gt;2 mu-mole g-1 h-1) at about 90 mu-M SIGMA-H2S. Measurements were made of hemolymph and coelomic fluid SIGMA-CO2, SIGMA-H2S, thiosulfate, pH, and hemoglobin concentrations in worms kept under various conditions of O2 and SIGMA-H2S. Normal hemolymph pH appears to be about 7.5 and is not affected by SIGMA-H2S and SIGMA-CO2 concentrations within the ranges observed. We conclude that Riftia is specialized to provide sulfide to its symbionts with minimal interaction of sulfide with the...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00178/28970/27392.pdf

Fixation d''un anticorps anti-lysozyme dans des cellules de mollusques bivalves
Provedor de dados: 5
Autores: Auffret, Mathieu; Diouris, M; Herry, A.
A polyclonal rabbit anti-human lysozyme (Dako) was applied on histological sections from bivalve mollusc and revealed with a mouse anti-rabbit IgG fluorescein conjugated antibody to localise cellular lysozyme in tissues where its activity had previously detected by enzymatic techniques. Labelling occurred in the cytoplasm of epithelial cells covering the body. This is in agreement with the intracellular distribution of this enzyme. In the Lucinid Lucinella divaricata gills, the cytoplasm of bacteriocytes was also labelled. This suggests that antibacterial activity occurred in these cells. Control sections indicate that fluorescence was a consequence of true primary antibody fixation. However, its specificity should be verified by electrophoretical...
Tipo: Text
Palavras-chave: Bivalvia; Immunology; Antibodies; Electrophoresis; Histology.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1723.pdf

Produccion de anticuerpos monoclonales y sondas contra Marteilia refringens aislada del mejillon Mytilus edulis de la Bretana Francesa
Provedor de dados: 5
Autores: Robledo, José Antonio Fernandez.
&lt;p&gt;Desde 1968, han sido varias las mortalidades que se han detectado en la ostra plana (Ostrea edulis) en Fancia, principalmente en la region de Marennes y en la costa atlantica de Bretania. Conocida en principio como (Maladie des Abers&amp;quot;, poteriormente fue denoninada &amp;quot;Maladie de la glande digestive&amp;quot; (enfermedad de la glandula digestiva) en referencia a su localizacion principal en la ostra. El agente etiologico fue descrito superficialmente por Comps (1970) y Herrbach (1971), y fueron Grizel et al. (1974) que estudiaron en detelle el parasito y lo denominaron Marteilia refringens, haciendo referencia a los granulos refringentes que se observan en las preparaciones en fresco. Tige &amp;amp; Ralouin (1976) la describen por...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00408/51914/52546.pdf

Prévoir, c'est gouverner
Provedor de dados: 5
Autores: Weber, Jacques; Bailly, Denis.
Le très long terme, pour l'économie, la sociologie, le droit et les sciences politiques relève de la réflexion séculaire ou pluriséculaire. Il est donc au-delà de la prévision, il ne peut guère relever que de la prospective et de la futurologie. Imaginons la question posée sous la révolution! Or les évolutions démographiques et technologiques ont-été plus rapides au cours des cinquante dernières années que lors, cl-as-deux siècles passés. Par contre, les représentations que les disciplines invoquées se font de la nature et de la société se sont étonnamment peu modifiées, sauf sur un point fondamental: la propriété privée et la maximisation du profit sont devenus le référent quasi-unique de  toute réflexion. Soit comme repère intangible, pour les...
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-4103.pdf

Report on the results of the ICES fourth intercomparison exercise for nutrients in sea water
Provedor de dados: 5
Autores: Kirkwood, Don; Aminot, Alain; Perttila, Matti.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00087/19867/17518.pdf

Le "fleuve cotier": Un phenomene hydrologique important en Manche orientale. Exemple du Pas-de-Calais
Provedor de dados: 5
Autores: Brylinski, J M; Lagadeuc, Y; Gentilhomme, V; Dupont, J P; Lafite, R; Dupeuble, P A; Huault, M F; Auger, Y.
The English Channel has a "megatidal" regime: in the Dover Strait, the tidal range varies between 3 and 9 m in neap-tide and spring-tide respectively. The tide currents are alternating and essentially parallel to the coast. Along the French coast, the fluvial supplies, distributed from the Bay of Seine to Cape Gris-Nez, generate a coastal water mass which drifts nearshore, separated from the open sea by a frontal area: this coastal flow is characterized by its freshness, turbidity, phytoplankton richness, and pollution content. Its width is only 3 to 5 miles, but because of the high concentrations of dissolved and suspended components, it is possible that the coastal flow plays an important role in the fluxes between the Eastern Channel and the North Sea.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37874/35955.pdf

Ecophysiologie de coquillages contaminés par des microalgues toxiques : premiers essais
Provedor de dados: 5
Autores: Rohmer, Véronique.
Afin d'évaluer les effets d'une contamination expérimentale par des microalgues toxiques sur la filtration,· des bivalves (Pecten maximus, Crassostrea gigas et Mytilus edulis) ont été alimentés pendant quelques heures avec différents régimes : des cultures très toxiques (Alexandrium tamarense, souche japonaise), moyennement toxique (A. minutum, souche française) et non toxique (A. tamarense, souche anglaise) de dinoflagellés, et une culture non toxique témoin d'une chlorophycée : Tetraselmis suesica. Les différents essais réalisés montrent que l'utilisation de rouge neutre ne permet pas de comparer les activités valvaires dans les conditions expérimentales. L'enregistrement direct de l'activité valvaire est intéressant mais difficilement reproductible dans...
Tipo: Text
Palavras-chave: Pecten maximus; Mytilus edulis; Crassostrea gigas; Ecophysiologie; Microalgues toxiques; Paralytic Shellfish Poison.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00429/54043/55314.pdf

Bioeconomic modelling and resource distribution (Workshop Report)
Provedor de dados: 5
Autores: Bailly, Denis.
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-2290.pdf

Surveillance écologique et halieutique. Site de Flamanville. Année 1989
Provedor de dados: 5
Autores: Arzul, Genevieve; Erard-le Denn, Evelyne; Quintin, Jean-yves; Piriou, Jean-yves; Dreves, Luc; Martin, Jocelyne; Miossec, Dominique.
Surveillance n°7 of Flamanville power-plant takes in account studies between march 1989 and september 1989. Hydrology, microbiology, phytoplancton, zooplancton, intertidal phytobenthos, intertidal and sublittoral zoobenthos, fishing are studied. The year 1989 is the fourth year of working for this power plant. [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: Surveillance; Centrale nucléaire; Halieutique; Benthos; Pelagos; Power plant surveillance; Fishing; Benthos; Pelagos.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1990/rapport-6798.pdf

Seasonal particulate carbon flux in the coastal northwestern mediterranean-sea, and the role of zooplankton fecal matter
Provedor de dados: 5
Autores: Fowler, Sw; Small, Lf; Larosa, J.
During a six-year (1978-1984) sediment trap study in the northwestern Mediterranean off the coast of Monaco, large variations in mass flux and carbon flux through 100 and 150 m were observed with maximum flux values occurring in late winter or early spring and minimum flux in late summer. Total particulate carbon flux was linearly related to mass flux. During March through October total particulate carbon flux represented, on average, approximately 7 % of the mass flux, whereas from November through February it averaged about 4.7 %. From recent organic carbon content data collected in the same region, it was estimated that approximately 5 % of the total mass flux through 100 and 150 m in calm seas was organic carbon (calm seas were prevalent during March...
Tipo: Text
Palavras-chave: PARTICULATE CARBON FLUX; FECAL PELLETS; SEDIMENT TRAPS; SEASONAL PARTICLES FLUX.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21281/18890.pdf

Seawater quality and summer mortalities of Atlantic salmon farmed in France
Provedor de dados: 5
Autores: Merceron, Michel.
(Not controlled OCR) Every summer, since 1983, important mortalities of Atlantic salmon smolts occur in net pen farmings in Brittany (France) (Harache and Gaignon, 1986). These mortalities, ranging from 30 to 87 % of stock, are in the way of the economic development of this activity. They take place between mid-June and the end of July. Most of the smolts are sluggish and without appetite. Looking for a viral or bacterial aetiology by the veterinary services was often unfruitful. In order to investigate a possible role of environment, a set of parameters was monitored and compared in two farming sites displaying very different mortality rates.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-2648.pdf

Analysis of turbot (Scophthalmus maximus) broodstock pilot scale production.
Provedor de dados: 5
Autores: Omnes, Marie-helene; Normant, Yvon; Suquet, Marc; Fauvel, Christian.
Rearing turbot (Scophthalmus maximus) reaches the commercial scale. With the hatchery output increasing, more attention needs to be focussed on broodstocks performance both in terms of quantity and viability of eggs. The techniques of shifting the environmental conditions allow a production of eggs all year round. However, egg quality tends to be highly variable. This paper examines over a two-year period, the improvement in egg quality and its consequences on the production of larvae by a strict management of spawners.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00169/28061/29430.pdf

Modélisation de l'écosystème du bassin de Marennes-Oléron (Rapport 1991)
Provedor de dados: 5
Autores: Raillard, Olivier; Razet, Daniel; Prou, Jean; Heral, Maurice.
Les expérimentations en continu sur le site du Chapus au centre du bassin de Marennes-Oléron pendant le mois de mai 1990 ont permis de déterminer le comportement des huîtres (filtration et ingestion). Dans le bassin de Marennes-Oléron les huîtres sont toujours au-dessus du seuil de production de pseudofeces qui régulent la qualité de nourriture ingérée. Ces résultats démontrent par ailleurs qu'il existe nettement un tri du matériel particulaire en suspension. Les huîtres rejettent préférentiellement le matériel minéral dans les pseudofeces alors que le matériel qui transite dans le tractus digestif est enrichi en matière organique. Un modèle trophique des huîtres a ainsi pu être établi avec de nouvelles lois de tri de la matière particulaire. Parallèlement...
Tipo: Text
Palavras-chave: Séries en continu; Turbidité; Phytoplancton; Physiologie huître Crassostrea gigas; Modèle de croissance; Modèle de remise en suspension.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00095/20635/18266.pdf

Aménagement des pêches régionales (Baie de Seine) - Rapport d'activité 1990
Provedor de dados: 5
Autores: Morin, Jocelyne; Legrand, Veronique; Fiant, Liliane; Duval, P.; Giret, Marc; Lemoine, M.; Miossec, Dominique; Tetard, Alain; Vigneau, Joel.
Dans le cadre contractuel du Plan Etat-Région de Basse-Normandie, plusieurs actions d'intérêt régional ont été menées de 1984 à 1988 sur :  - la pêcherie de praires et bivalves du Cotentin ouest, - les pêcheries côtières de homard, seiche, buccin de la côte du Cotentin ouest, - l'exploitation des gisements de moule du Cotentin est, - la gestion des ressources en coquilles Saint-Jacques de baie de Seine.  Ces travaux ont contribué à la définition et à la mise en place de règles d'exploitation et à mieux cerner certaines ressources potentielles telles que les bivalves autres que ceux classiquement exploités.  Le programme proposé pour la période 1989-1993 a eu pour objectif majeur d'accompagner la Région dans son effort de gestion de sa pêche et de ses...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00076/18682/16312.pdf

Contrôle de la ploidie par imagerie numérique dans des expériences d'induction de la triploidie chez les mollusques bivalves
Provedor de dados: 5
Autores: Gerard, Andre; Peignon, Jean-marie; Chagot, Dominique.
Individual determination of ploidy level in experimentally induced triploid bivalve molluscs using image cytometry. The sexual maturation in bivalve molluscs causes decreased growth and sometimes increased mortalities. These drawbacks can be avoided by genetic sterilization (triploidy). Triploïdy induction require a egg treatment and a ploidy control at each generation. The ploidy level is usually determined by counting the chromosomes, a technique which is relatively easy for the trochophora stage and for juveniles measuring from 5 mm to 3 cm only.  ln order to be able to follow up the evolution of the ploidy rate during any stage of animallife, we have developed an estimation method based on image cytometry. Individual DNA content is determined by...
Tipo: Text
Palavras-chave: Image cytometry; Caryology; Triploidy; Bivalve; Imagerie numérique; Caryologie; Triploïdie; Bivalve.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-3202.pdf

Modèle énergétique uniboite de la croissance des huîtres (Crassostrea gigas) dans le bassin de Marennes-Oléron
Provedor de dados: 5
Autores: Bacher, Cedric; Heral, Maurice; Deslous-paoli, Jean-marc; Razet, Daniel.
The growth of oysters (Crassostrea gigas) is modeled in order to study the trophic capacity of the Bay of Marennes Oléron. Total seston and amount of protids, lipids, and carbohydrates converted to energy are the environmental factors taken into account. Time series of these variables are derived during 2 yr with a daily time step from a linear regression including the tidal velocity, the height of the water column, and the wind velocity. A model of the energetic budget based on assimilation and respiration terms and depending on the previous time series is run to simulate the individual growth of an oyster. The knowledge of the number of oysters, the flow of water entering the bay, and the volume of the bay allows us then to estimate that 7% of the...
Tipo: Text
Palavras-chave: Marennes Oléron; Crassostrea gigas; Huîtres; Croissance; Modélisation; Marennes Oleron bay; Crassostrea gigas; Oysters; Growth; Modelisation.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-3051.pdf

Elevage intensif de la palourde japonaise Ruditapes philippinarum dans les marais atlantiques: faisabilité biologique
Provedor de dados: 5
Autores: Baud, Jean-pierre; Glize, Philippe; Haure, Joel; Garnier, Jacqueline.
Dans un élevage Intensif en claires expérimentales de palourdes japonaises semées à la taille de 28 mm et aux densités de 100, 200 et 300/m2, différentes rations alimentaires de la diatomée Skeletonema costatum. cultivée à partir d'eau salée souterraine, ont été testées de mars à novembre 1988. Pour la densité 100/m2, le taux de croissance n'est pas significativement différent avec des concentrations de pigment dans l'eau injectée comprises entre 31 et 126 µg.l(1) de Chia. Toutefois celui-ci est 1,5 fois supérieur à celui observé dans la claire témoin. Avec 1.8 kg.m-2 la biomasse finale représente 2 fois la charge récoltée dans la claire extensive. Après analyse, la densité de 300/m2 semble être le meilleur compromis pour l'élevage intensif même si la...
Tipo: Text
Palavras-chave: Aquaculture intensive; Palourde japonaise; Ruditapes philippinarum; Marais maritime; Zootechnie; Densité; Croissance; Biomasse; Production; Rendement.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00048/15885/13307.pdf

Étude des interactions entre les processus physiques et biologiques intervenant dans la production de l’huître creuse Crassostrea gigas (Thunberg) du bassin Marennes-Oléron : essais de modélisation.
Provedor de dados: 5
Autores: Raillard, Olivier.
A deterministic model of nutrition and growth behaviour of the japanese oyster Crassostrea gigas is built using experimental and field data, and validated by field measurements. Its integration in a model that couple primary production and horizontal transport of suspended matter and nutrients permits to study the Charente river flow influence on the biotic capacity of Marennes-Oléron Bay. The oysters growth rate is positively correlated with the nitrate input variations. However, the oyster growth sensivity to nitrate input variations is proved to depend both on mollusk location and age. In a second step, the effect of the oyster stock on primary and secondary production is evaluated. Spatial variability of oyster growth response is clearly shown. The...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00107/21855/19445.pdf

Navires et avions. Le financement des investissements 1990-1999
Provedor de dados: 5
Le CSMM a tenu en juillet 1991 une journée d'étude de haut niveau consacrée aux problèmes de financement des navires marchands durant l'actuelle décennie. Les communications faites à cette occasion ont abordé :  • l'ampleur des besoins de financement en navires et aéronefs,  • les possibilités du marché des capitaux,  • les techniques de financement employées dans le secteur du transport aérien,  • les garanties à constituer pour ces financements et les techniques nouvelles à employer en la matière. [OCR NON CONTRÔLE]
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-4340.pdf

Etude économique de la production et de la commercialisation des moules en Italie
Provedor de dados: 5
Autores: Antona, Martine; Paquotte, Philippe; Bailly, Denis.
Limitations and assets of shellfish farming in Italy are presented in Figures 6.1 and 6.2. In the case of oysters, which are only wild-caught and not cultured, the perspectives of this activity are tightly linked to problems in stock and fleet management. The current research and development institutions do not seem to favour the emergence of aquaculture in the near future. Mussel farming is done on a small-scale and its prospects for development are modest. While the demand creates favourable conditions for its development, mussel farming is confronted with a lack of available sites suitable for traditional techniques, problems in environmental quality and problems in product quality. Moreover, the study of the Italian market shows that competition from...
Tipo: Text
Palavras-chave: SEM.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-4098.pdf

Temporal and spatial structure in the hyperbenthic community of a shallow coastal area and its relation to environmental variables
Provedor de dados: 5
Autores: Hamerlynck, O; Mees, J.
Monthly sampling with a sledge type gear at 24 stations in the shallow coastal area in front of the Dutch Delta (southern bight of the North Sea) shows that high densities of a variety of animals are present in the lower 1 m of the water column: the hyperbenthos. Hyperbenthic community structure is strongly dominated by seasonal fluctuations due to the sequential appearance, high abundance and disappearance of the different species of temporary hyperbenthos. Averaged over the year, spatial patterns are consistent with the hydrodynamic regime in the system. Low current velocities and protection from wave action thus create an environment suitable for settlement of macrobenthic larvae and for sedimentation of the phytoplankton bloom.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37891/35972.pdf

Dissolved nutrients, preformed nutrients and calculated elemental ratios in the south-east mediterranean-sea
Provedor de dados: 5
Autores: Krom, Md; Brenner, S; Israilov, L; Krumgalz, B.
The Mediterranean Sea has been described as the most impoverished large body of water in the world. Number of studies have determined nutrient concentration in the western and central Mediterranean; in this preliminary study, we present data from 25 stations in the Levantine basin of the eastern Mediterranean. The surface layer, to a depth of 150 m, had a silicic acid content of 1-2-mu-M and a nitrate concentration of less than 1-mu-M, while the maximum reached at depth was 5.4-6.5-mu-M nitrate and 9.9-14.6-mu-M nitrate and 9.9-14.6-mu-M silicic acid except for three stations close to the Egyptian coast where a value of 17-mu-M was reached. There was sometimes a small nitrate maximum (0.1-0.5-mu-M) at 600 m (400-800 m). Based on temperature, salinity and...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21250/18863.pdf

Some considerations on neutral surface-analysis
Provedor de dados: 5
Autores: Theodorou, Aj.
The development of the concept of a "neutral surface" - an isopycnal surface refined by the introduction of a variable reference pressure - is presented. Problems in approximating such a surface (concerning, for example and inter alia, the reference water parcel to be used in starting a neutral surface; or the reference pressure and parcel to be used and path to be followed in extending a neutral surface from station to station) are examined. These problems arise because oceanographic reality only provides data at discrete depths from given station networks. The effects of compressibility dependence on the thermohaline properties of a water parcel in delineating a neutral surface are also considered. A new method of approximating neutral surfaces is...
Tipo: Text
Palavras-chave: NEUTRAL SURFACE; OCEANIC CIRCULATION; HYDROLOGICAL DATA; ATLANTIC OCEAN; MEDITERRANEAN SEA.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00101/21251/18864.pdf

Lavage des coquillages. Avantages, observations et mise en oeuvre. Fiche pratique n°2
Provedor de dados: 5
Autores: Ravoux, Georges; Piquion, Jean-claude.
Destinée aux Professionnels qui mettent les coquillages en marché, cette série "fiches pratiques" a pour but de les aider à améliorer leurs connaissances et leurs pratiques, donc rendre leurs entreprises plus performantes. Ces fiches ne prétendent pas répondre à toutes les questions mais abordent les points essentiels sur un sujet technique précis pour faciliter son approfondissement ultérieur. [OCR NON CONTRÔLE]
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/rapport-4331.pdf

Analyse du comportement d'un écosystème lagunaire à diverses échelles de temps et d'espace. Application à l'étang de Thau
Provedor de dados: 5
Autores: Rosello-tournoud, Marie-george.
On tente, sur l'exemple de l'étang de Thau, de définir les échelles spatiales et temporelles de variabilité maximale des phénomènes physiques, qui permettront d'analyser le fonctionnement d'un milieu lagunaire à une échelle compatible avec celle des observations. La démarche adoptée comporte trois étapes : - l'étude du comportement hydrodynamique du milieu sous le seul effet du vent, à l'aide du modèle numérique bidimensionnel de Leendertse (1971), sous le seul effet du vent. On met en évidence des organisations cellulaires, qui constituent l' échelle horizontale de variabilité maximale des processus de convection. On critique l'influence des diverses hypothèses de la modélisation sur la zonation. - la modélisation des phénomènes de dispersion, par une...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00073/18418/15957.pdf

Observation of the larval distribution of two soleidae: Solea solea (L.) and Microchirus variegatus (Donovan) in the Bay of Biscay
Provedor de dados: 5
Autores: Lacroix, Nicole; Rouxel, Catherine; Dorel, Didier.
Surveys for larval stages of Dover sole (Solea solea) and Thickback sole (Microchirus variegatus) were carried out in the northern part of the bay of Biscay between 1985 and 1989. The spawning periods of these species overlap but the spawning areas are different since young larvae of M. variegatus are recorded more offshore than those of S. solea. In addition, in spite of a similar behaviour the first species undergo smaller vertical migrations than the second and never reach surface layers. These two observations suggest why Thickhack sole larvae on the contrary of Dover sole larvae never reach coastal areas and achieve whole development in water deeper than 40 m. The life cycle of this species developing thus entirely offshore.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00394/50571/51262.pdf

Effect of the density of the culture and the depth on the seasonal variation of the biochemical composition of Crassostrea virginica in patuxent river (Chesapeake Bay)
Provedor de dados: 5
Autores: Prou, Jean; Heral, Maurice; Goulletquer, Philippe; Forget, Maïté; Bougrier, Serge; Razet, Daniel.
The project of cultivation of oyster has been designed to evaluate the growth rate, the mortality, the reproductive effort, production and biochemical composition of the oyster function of the density and the depth. This plan was intended: - to build model of growth rate, - to demonstrate the action of the different parameters on growth rate (temperature, food effect...), - to evaluate the density effect to see if the available food could be a limiting factor, - to estimate the effect of the depth joined to the impact of the high turbidity near the bot tom, - to detect the mortality related to the prevalence of diseases.   The project began in July 1989 by dredging 20 000 small oysters at the mouth of the Patuxent River near Cove Point. Three experimental...
Tipo: Text
Palavras-chave: Physiology; Seasonal variation; Biochemical composition; Density; Crassostrea virginica; Cheseapeake Bay.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00200/31104/29503.pdf

Measurement of benthic nutrient fluxes in mediterranean shellfish farms - a methodological approach
Provedor de dados: 5
Autores: Grenz, C; Plantecuny, Mr; Plante, R; Alliot, E; Baudinet, D; Berland, B.
Benthic chambers were used to investigate fluctuations in nutrient fluxes and oxygen changes when comparing two benthic biota. Muddy sediments located under mussel-cultivation ropes were compared with a station outside the mussels' influence. Biodeposition from the mussels results in a drastic increase in the nutrient fluxes. A standard procedure is established in order to give reliable comparisons between stations and seasons: as a rule it should include six-hour periods of incubation with sampling intervals of two hours and at least four benthic chambers - preferably six - at each station.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21373/18973.pdf

Anthropogenic lead cycle in the northeastern atlantic
Provedor de dados: 5
Autores: Lambert, Ce; Nicolas, E; Veron, A; Buatmenard, P; Klinkhammer, G; Lecorre, P; Morin, P.
We have investigated total Pb distributions in the water column from various sites in the north-east Atlantic. Sea water samples were collected during the Fluxatlante cruise in 1985. Total Pb ranged from 35 to 45 ng.l-1 (170-220 pmol l-1) in surface waters and decreased with depth in a manner consistent with previous findings. The high concentrations in surface waters probably reflect an important anthropogenic input of Pb from the atmosphere. Concentrations of total Pb are higher than in the western Atlantic. This difference seems to be closely related to the difference in atmospheric inputs of anthropogenic Pb. Three of the stations exhibit a specific Pb excess at the depth of the Mediterranean waters outflowing in the intermediate Atlantic waters; such...
Tipo: Text
Palavras-chave: TOTAL PB; NORTH ATLANTIC; MEDDY; POLLUTION.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21279/18888.pdf

Monoclonal antibodies against Bonamia ostreae (Protozoa: Ascetospera), an intrahaemocytic parasite of flat oyster Ostrea edulis (Mollusca : Bivlavia)
Provedor de dados: 5
Autores: Rogier, Hervé; Hervio, Dominique; Boulo, Viviane; Clavies, Christine; Hervaud, Eliane; Bachere, Evelyne; Mialhe, Eric; Grizel, Henri; Pau, Bernard; Paolucci, Francis.
The protozoan Bonamia ostreae (Ascetospora), a paasite of the flat oyster Ostrea edulis, was purified by differential and isopycnic centrifugations. Mice of the strain Balb/c were immunized with purified parasites and hybridomas were prepared by fusion of immunized mouse splenocytes with the mouse myeloma cell line P3-X63-Ag8-653. From the fusion, 12 clones were isolated and saved. The resulting antibodies were characterized with a solid phase radioimmunoassay (RIA). Antibodies from 7 clones reacted only with B. ostreae and not with normal host tissue. Although some of the antibiodies identified. One of these antibodies (20B2-1B12) has an apparent association constant of ca 3 X 10(8) M-1 and bound to a number of different sites on the parasite. These...
Tipo: Text
Palavras-chave: Monoclonal antibodies; Oyster; Ostrea edulis; Bonamia ostreae.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-2756.pdf

Le controle chimique et biologique de Lymnaea truncatula Mueller. Etude des effets a long terme
Provedor de dados: 5
Autores: Rondelaud, D.
The treated habitats have not been recolonized by Lymnaea truncatula . Four aquatic snail species showed an increase in their numbers: L. glabra in the stations of Haute-Vienne, L. glabra, Physa acuta, P. hypnorum and Planorbis rotundatus in the habitats of Indre. The numbers of L. glabra and P. acuta reached their maximum on the third year and decreased thereafter; those of P. hypnorum and P. rotundatus slightly increased from the fourth or the fifth years treatment. The colonization of L. truncatula habitats was incomplete and did not reach over 50% of the surface for L. glabra and P. acuta , 20% for P. hypnorum and P. rotundatus . The bivalve Pisidium casertanum did not recolonize treated habitats. There were no modifications in the numbers of...
Tipo: Text
Palavras-chave: Physa; Lymnaea; Mollusca; Biological control; Chemical control; Population density; Population dynamics; Freshwater molluscs.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1715.pdf

The social and economic impact of aquaculture : a European review
Provedor de dados: 5
Autores: Neiland, A.e.; Shaw, S.a.; Bailly, Denis.
This paper undertakes a preliminary evaluation of the social and economic impact of aquaculture from both empirical and theoretical standpoints. Drawing initially on background information collected for the Commission of the European Communities (CEC) in a recent study by the European Association of Fisheries Economists (EAFE), a number of important indicators and trends (e.g. production, employment, market structure) are examined which indicate that aquaculture is of increasing significance in many regions. Whilst some socio-economic information is available for ail European countries, this information base is weak in comparison to that for biological and technical aspects of aquaculture and does not permit a comprehensive evaluation at the present time....
Tipo: Text
Palavras-chave: Review; Social impact; Economic impact; Europe; Aquaculture.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/publication-3705.pdf

Suivi bactérien d'un élevage larvaire de crevettes péneïdes - Ecloserie CAMCAR, 12 janvier - 12 février 1991
Provedor de dados: 5
Autores: Haffner, Philippe; Berthe, Franck.
La mission effectuée de mi-janvier à mi-février à l'écloserie CAMCAR (Colombie), avait pour objectif l'analyse quantitative et qualitative de la flore bactérienne présente en élevage larvaire de crevettes pénéides. L'intérêt principal du choix de ce site est de travailler dans une écloserie jeune (- de de deux ans) et n'ayant jamais rencontré de problème pathologique. Cette analyse fait donc le point sur les équilibres bactériens présents dans une écloserie industrielle saine mais bien évidemment dans un lieu et à une époque précise.
Tipo: Text
Palavras-chave: Ecloserie; Bactériologie; Flore bactérienne; Colombie.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00131/24192/22186.pdf

Comparison of three solea solea (L.) nursery grounds of the Bay of Biscay : distribution, density and abundance of 0-group and I-group
Provedor de dados: 5
Autores: Dorel, Didier; Desaunay, Yves.
The abundance of sole juveniles was estimated in October 1986 and 1987 for three nursery grounds which contribute to the stock of the Bay of Biscay (Bay of Vilaine : 332 km2, Pertuis Breton : 264 km2, Pertuis d'Antioche : 276 km2). Topography and sediments induce differences in sole distribution. The densities of juveniles are highest in both Pertuis, by x 6 to x 20 compared to the Vilaine. The interannual variation of the mean densities is opposite in the northern zone (x 0,66) and in both southern zone (x 2,13). The mean lengths of 0-group are different between the three sites ans between years. The contribution of a given nursery ground to the stock is not merely proportional to its surface and each of the nurseries may have its own dynamics. The final...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00394/50570/51261.pdf

La malacofaune marine d''un site neolithique de l''Ile d''Oleron (Charente-Maritime): Questions posees au biologiste
Provedor de dados: 5
Autores: Gruet, Y; Laporte, L.
The species which have been identified in this Neolithic site are still living along the Bay of Biscay coasts. One of them, Haliotis , has recently disappeared from the Oleron Island. Some of them, as the very fruitful Patella and Monodonta lineata , have certainly been gathered and devoted to food. Others, as Nucella lapillus , have only been used to make pearls. And some others, Cardium for instance, could have been devoted at the same time to food and pearls. The study of the current biota of the different species allows the biologist to indicate where the shells might have lived: rocky or sandy shores, sheltered or exposed shores, intertidal or subtidal environment. The knowledge of the possible biota is an indication of the areas of the prehistoric...
Tipo: Text
Palavras-chave: ANE; France; Poitou Charentes; Marennes Oleron Bay Marine molluscs Biotopes Palaeontology Check lists Ecology.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-1726.pdf

Variations in heat flow across the Goban Spur and Galicia Bank continental margins
Provedor de dados: 5
Autores: Louden, K. E; Sibuet, Jean-claude; Foucher, Jean-paul.
We present the results of 44 new heat flow stations which were taken in 1984 and 1989 in profiles across the Goban Spur and Galicia Bank continental margins (NW Atlantic Ocean). Simple extensional models indicate that the heat flow across both these Early Cretaceous rifted margins should increase from values of 45-50 mW/m2 over oceanic crust to 65-80 mW/m2 on the continents. The rate of this increase should help to constrain the mechanism (simple versus pure shear) by which the upper, more radiogenic continental crust is thinned. Measurements across Goban Spur increase from values of 40-45 mW/m2 over oceanic crust to 50-55 mW/m2 near the continental shelf. They follow the predicted trend for pure-shear rifting, but only if the value of upper crustal...
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00182/29341/28269.pdf

Alternative intensive cropping with corn
Provedor de dados: 18
Autores: Sojka, R.E.; Busscher, W.J.
Please contact the NWISRL if you have a copy of this publication.
Tipo: Technical Bulletin
Palavras-chave: Corn / maize; Mass Import - autoclassified (may be erroneous).
Ano: 1991

Alternative intensive cropping with corn
Provedor de dados: 18
Autores: Sojka, R.E.; Busscher, W.J.
Tipo: Conference or Workshop Item
Palavras-chave: Corn / maize; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/906/1/739.pdf

Chapter G: Selenium poisoning in livestock
Provedor de dados: 18
Autores: James, L.F.; Mayland, H.F.; Panter, K.E.
Tipo: Conference or Workshop Item
Palavras-chave: Animal health; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/908/1/743.pdf

Reducing erosion and sediment loss from furrow irrigated slopes
Provedor de dados: 18
Autores: Brown, M.J.; Sojka, R.E.
Tipo: Conference or Workshop Item
Palavras-chave: Erosion; Sediment; Erosion; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/874/1/729.pdf

Crop sequences and conservation tillage to control irrigation furrow erosion and increase farmer income
Provedor de dados: 18
Autores: Carter, D.L.; Berg, R.D.
Tipo: Article
Palavras-chave: Erosion; Erosion; Tillage; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/550/1/736.pdf

Morphological, temporal, and nodal accumulation of nutrients by determinate soybean
Provedor de dados: 18
Autores: Sadler, E.J.; Karlen, D.L.; Sojka, R.E.; Scott, H.D.
Tipo: Article
Palavras-chave: Bean / dry bean; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/558/1/749.pdf

BOOK REVIEW: "Agricultural salinity and management", K.K. Tanji, (Ed.)
Provedor de dados: 18
Autores: Carter, David L.
Tipo: Article
Palavras-chave: Mass Import - unclassified.
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/566/1/757.pdf

Impact sprinkler pattern modification
Provedor de dados: 18
Autores: Kincaid, D.C.
Tipo: Article
Palavras-chave: Sprinkler irrigation; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/576/1/771.pdf

Producing no-till cereal or corn following alfalfa on furrow-irrigated land
Provedor de dados: 18
Autores: Carter, D.L.; Berg, R.D.; Sanders, B.J.
Tipo: Article
Palavras-chave: Alfalfa; Corn / maize; Small grain; Tillage; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/552/1/738.pdf

Response of montane tall-forb communities to 2,4-D and mixtures of 2,4-D and picloram
Provedor de dados: 18
Autores: Murray, R.B.; Mayland, H.F.; Shewmaker, G.E.
Tipo: Article
Palavras-chave: Mass Import - unclassified.
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/556/1/746.pdf

Understanding salt and sodium in soils, irrigation water and shallow groundwaters: A companion to the software program SWAGMAN-Whatif
Provedor de dados: 18
Autores: Robbins, C.W.; Meyer, W.S.; Prathapar, S.A.; White, R.J.G.
Tipo: Technical Bulletin
Palavras-chave: Chemistry; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/1190/1/731.pdf

Genetic variances for dry matter yield, nitrogen content, and nitrogen yield in crested wheatgrass-alfalfa mixtures
Provedor de dados: 18
Autores: Asay, K.H.; Mayland, H.F.
Tipo: Article
Palavras-chave: Alfalfa; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/560/1/750.pdf

Fertilizer application for correcting micronutrient deficiencies
Provedor de dados: 18
Autores: Martens, D.C.; Westermann, D.T.
Tipo: Book Section
Palavras-chave: Fertilizer; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/777/1/753.pdf

Too much of a good thing causes runoff problems
Provedor de dados: 18
Autores: Kincaid, D.C.
Tipo: Article
Palavras-chave: Runoff losses; Practical farm efficiency; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/546/1/727.pdf

Selenium mobility in soils and its absorption, translocation, and metabolism in plants
Provedor de dados: 18
Autores: Mayland, H.F.; Gough, L.P.; Stewart, K.C.
Please contact the NWISRL if you have a copy of this publication.
Tipo: Technical Bulletin
Palavras-chave: Selenium; Mass Import - autoclassified (may be erroneous).
Ano: 1991

Chapter I: Selenium in soils and plants from native and irrigated lands at the Kendrick Reclamation Project Area, Wyoming
Provedor de dados: 18
Autores: Erdman, J.A.; Severson, R.C.; Crock, J.G.; Harms, T.F.; Mayland, H.F.
Tipo: Conference or Workshop Item
Palavras-chave: Selenium; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/907/1/742.pdf

Zone production system for cotton: soil response
Provedor de dados: 18
Autores: Carter, L.M.; Meek, B.D.; Rechel, E.A.
Tipo: Article
Palavras-chave: Soil; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/554/1/740.pdf

Selenium in soils and plants from native and irrigated lands at the Kendrick Reclamation Project Area, Wyoming
Provedor de dados: 18
Autores: Erdman, J.A.; Severson, R.C.; Crock, J.G.; Harms, T.F.; Mayland, H.F.
Please contact the NWISRL if you have a copy of this publication.
Tipo: Technical Bulletin
Palavras-chave: Selenium; Mass Import - autoclassified (may be erroneous).
Ano: 1991

Furrow geometric parameters
Provedor de dados: 18
Autores: Trout, Thomas J.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/562/1/752.pdf

Soil Management (Chapter 23)
Provedor de dados: 18
Autores: Trout, T.J.; Sojka, R.E.; Okafor, L.I.
Tipo: Book Section
Palavras-chave: Soil; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/805/1/733.pdf

Comparison of DTPA and resin extractable soil Zn to plant Zn uptake
Provedor de dados: 18
Autores: Hamilton, M.A.; Westermann, D.T.
Tipo: Article
Palavras-chave: Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/548/1/732.pdf

Chapter E: Selenium mobility in soils and its absorption, translocation, and metabolism in plants
Provedor de dados: 18
Autores: Mayland, H.F.; Gough, L.P.; Stewart, K.C.
Tipo: Conference or Workshop Item
Palavras-chave: Selenium; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/909/1/744.pdf

Selenium poisoning in livestock
Provedor de dados: 18
Autores: James, L.F.; Mayland, H.F.; Panter, K.E.
Please contact the NWISRL if you have a copy of this publication.
Tipo: Technical Bulletin
Palavras-chave: Animal health; Mass Import - autoclassified (may be erroneous).
Ano: 1991

Center-of-pressure gates for irrigation
Provedor de dados: 18
Autores: Humpherys, A.S.
Tipo: Article
Palavras-chave: Mass Import - unclassified.
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/544/1/725.pdf

A radio-controlled trencher for accurate installation of shallow ditches and pipelines
Provedor de dados: 18
Autores: Kincaid, D.C.; Fisher, H.D.
Tipo: Article
Palavras-chave: Practical farm efficiency; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/545/1/726.pdf

Silicon accumulation and water uptake by wheat
Provedor de dados: 18
Autores: Mayland, H.F.; Wright, J.L.; Sojka, R.E.
Tipo: Article
Palavras-chave: Small grain; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/563/1/754.pdf

Freezing effects on aggregate stability affected by texture, mineralogy, and organic matter
Provedor de dados: 18
Autores: Lehrsch, G.A.; Sojka, R.E.; Carter, D.L.; Jolley, P.M.
Tipo: Article
Palavras-chave: Chemistry; Soil; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/564/1/755.pdf

A conservation tillage research update from the Coastal Plain Soil and Water Conservation Research Center of South Carolina: A review of previous research
Provedor de dados: 18
Autores: Sojka, R.E.; Karlen, D.L.; Busscher, W.J.
Tipo: Article
Palavras-chave: Tillage; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/565/1/756.pdf

Erosion and infiltration of furrow irrigated potato fields as affected by zone subsoiling
Provedor de dados: 18
Autores: Sojka, R.E.; Kennedy-Ketcheson, E.C.; Brown, M.J.; Westermann, D.T.
Tipo: Conference or Workshop Item
Palavras-chave: Potato; Erosion; Infiltration; Erosion; Subsoiling; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/875/1/730.pdf

Genetic variation for selenium content in tall fescue
Provedor de dados: 18
Autores: McQuinn, S.D.; Sleper, D.A.; Mayland, H.F.; Karuse, G.F.
Tipo: Article
Palavras-chave: Chemistry; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/551/1/737.pdf

Hydraulic resistance of soil surface seals in irrigated furrows
Provedor de dados: 18
Autores: Segeren, Antonius G.; Trout, Thomas J.
Tipo: Article
Palavras-chave: Infiltration; Soil; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/557/1/748.pdf

Using weighing lysimeters to develop evapotranspiration crop coefficients
Provedor de dados: 18
Autores: Wright, James L.
Tipo: Conference or Workshop Item
Palavras-chave: Evapotranspiration; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/1056/1/745.pdf

Deep tillage effects on potato yield and quality
Provedor de dados: 18
Autores: Sojka, R.E.; Westermann, D.T.; Brown, M.J.; Kincaid, D.C.; Meek, B.D.; McCann, I.; Halderson, J.; Thornton, M.
Tipo: Conference or Workshop Item
Palavras-chave: Potato; Tillage; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/1055/1/735.pdf

Alfalfa yield as affected by harvest traffic and soil compaction in a sandy loam soil
Provedor de dados: 18
Autores: Rechel, E.A.; Meek, B.D.; DeTar, W.R.; Carter, L.M.
Tipo: Article
Palavras-chave: Alfalfa; Soil; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/555/1/741.pdf

Alfalfa (Medicago sativa L.) water use efficiency as affected by harvest traffic and soil compaction in a sandy loam soil
Provedor de dados: 18
Autores: Rechel, E.A.; DeTar, W.R.; Meek, B.D.; Carter, L.M.
Tipo: Article
Palavras-chave: Alfalfa; Soil; Practical farm efficiency; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/561/1/751.pdf

Solute transport and reactions in salt-affected soils
Provedor de dados: 18
Autores: Robbins, C.W.
Tipo: Book Section
Palavras-chave: Chemistry; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/736/1/747.pdf

Books received by the Rijksherbarium library
Provedor de dados: 16
Autores: NN.
The fourth issue of this loose-leaf colour atlas of ectomycorrhizae comprises an extended key to the 83 species of mycorrhizae treated thus far. An extra key is provided for the identification of boreal and temperate European forest trees by the anatomy of their roots. This key is elucidated by 16 pages of good half-tone photographs. In this issue 16 ectomycorrhizae are described and amply and nicely illustrated in colour and black-and-white photographs. In the end in this atlas a total of 200-300 plates are envisaged.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/532018

Some observations on biology and feeding behavior in two southern California pycnogonids
Provedor de dados: 16
Autores: Bain, Bonnie.
During the years 1980 to 1982, two common southern California pycnogonids, Anoplodactylus californicus Hall, 1912 and Ammothea hilgendorfi (Böhm, 1879) were routinely collected and kept in aquaria. Observations were made both in the field and in the laboratory on feeding behavior and other aspects of the behavior and biology of the two species. It was concluded that, of the two species, Anoplodactylus californicus would be a good candidate to raise in the laboratory for further studies on the biology of these organisms.
Tipo: Article / Letter to the editor
Palavras-chave: Pycnogonida; Feeding behavior; Anoplodactylus; Ammothea; Laboratory conditions.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/504293

Review
Provedor de dados: 16
Autores: Vermeulen, J.J.
This revision of all the orchid species so far recorded from the Solomon Islands and Bougainville (285 species belonging to 87 genera) has a similar layout as the previously published ‘Orchids of Vanuatu’ by the same authors. A short introduction is given to the topography, geology, vegetation, as well as the history of the botanical exploration of the area covered. The account of the species itself is written in a ‘standard’ Flora-style: a key to the genera, keys to the species of each genus, synonyms to the accepted species names, descriptions of the species, etcetera. Numerous full-page line drawings clearly depict diagnostically important parts of about half of the species, sixteen colour plates of high quality give an impression of their beauty. The...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/526102

Review
Provedor de dados: 16
Autores: Nooteboom, H.P.
This volume includes over 10,000 citations to literature published during the last ten years about plant conservation at all levels, local, national, and international. Its scope ranges from highly specific papers on individually threatened plant species to more general papers tackling conservation strategy, policy, and law. Reference citations are grouped into three sections, General, Regional, and Country. For the larger countries also followed by state or province. Each citation is numbered in the left-hand column, making it easy to find specific references using the subject indices given at the end of the book (an index on plant names, one on families, and a geographical index).
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525952

Voortvarend (3)
Provedor de dados: 16
Autores: Meijden, Ruud van der.
Je vindt niet alle dagen een uitgestorven soort op excursie, dus het FLORON-kaderkamp in Bergeijk (bij Valkenswaard) kon niet meer stuk toen Kees van Oers, Roel Douwes en ondergetekende met Ranunculus omiophyllus, de Drijvende waterranonkel aankwamen. Kijk maar naar de kenmerken: alléén maar drijvende bladen, bladslippen smaller aan de voet dan aan de top, kroonbladen flink groot, en ... één eerdere vondst, 90 jaar geleden: ‘in een sloot bij Valkenswaard’! Met alle beschikbare determinatie-werken (zelfs Flora Europaea had Joep Spronk meegebracht) liep de determinatie rechtstreeks naar R. omiophyllus. Maar hij was het dus niet, zoals direct bleek toen we ‘thuis’ op het Rijksherbarium collecties van die soort tevoorschijn haalden ter vergelijking met het...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527089

De floristische Commissies van de Koninklijke Nederlandse Botanische Vereniging in historisch perspectief
Provedor de dados: 16
Autores: Sterk, A.A.
De floristiek heeft vanouds een belangrijke plaats gehad binnen de KNBV. Tot mei 1990 had de vereniging zelfs twee commissies voor de Nederlandse flora namelijk de Commissie voor het Floristisch Onderzoek van Nederland (CFON) en de Commissie voor de Bescherming van de Wilde Flora (CBWF). In de laatste jaren vonden er binnen de floristiek en binnen de KNBV ontwikkelingen plaats waaruit duidelijk werd dat het gewenst zou zijn dat beide commissies tot fusie zouden komen en niet afzonderlijk, en in zekere isolatie van elkaar, verder zouden werken. Door een bundeling van krachten zouden er nieuwe stimulansen kunnen ontstaan voor studie, onderzoek en voorlichting met betrekking tot de Nederlandse flora. Op voorstel van beide commissies heeft het bestuur van de...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527210

Review
Provedor de dados: 16
Autores: Vermeulen, J.J.
The orchid flora of Java has received due attention at a comparatively early stage: in the first years of this century J.J. Smith already subjected them to a comprehensive revision. In later publications he added much new information and introduced more new species. Nowadays this body of information lies rather scattered over a number of periodicals which are only present in botanical libraries. It is gathered indeed in Backer &amp; Bakhuizen van den Brink’s Flora of Java, but this is entirely without illustrations. It is therefore not easily accessible, particularly not for the layman. James Comber’s impressive volume is a very welcome update. He provides a key to the genera, keys to the species of each genus, a description, and some additional...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525722

Colonization of the German part of the river Rhine by the Asiatic clam, Corbicula fluminea Müller, 1774 (Pelecypoda, Corbiculidae)
Provedor de dados: 16
Autores: NN.
The freshwater bivalve Corbicula fluminea (Müller, 1774), new to the aquatic fauna of the Federal Republic of Germany, is recorded for the first time on four localities in the German part of the River Rhine.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/505471

The tuberous epiphytes of the Rubiaceae 1: A new subtribe — The Hydnophytinae
Provedor de dados: 16
Autores: Huxley, C.R.; Jebb, M.H.P.
The morphology and ant-association of the five genera Hydnophytum Jack, Myrmecodia Jack, Anthorrhiza Huxley &amp; Jebb, Squamellaria Becc. and Myrmephytum Becc. are described. On the basis of shared character states in tuber cavity development and inflorescence structure these five genera are united as a subtribe, the Hydnophytinae.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525673

Notes on Southeast Asian and Australian Coreopsidinae (Asteraceae)
Provedor de dados: 16
Autores: Veldkamp, J.F.; Kreffer, L.A.
Chrysanthellum L.C.M. Rich, (inch Eryngiophyllum Greenm.) is distinguished from Glossocardia Cass. The genera Glossogyne Cass., Guerreroia Merr. and Neuractis Cass. are reduced to Glossocardia. Diodontium F. Muell. from Australia is resurrected, and Glossogyne sect. Trioncinia F. Muell. is raised to generic rank. Three new species are described and several new combinations are proposed. Cosmos calvus sensu Sherff is renamed to Cosmos steenisiae Veldk.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/524915

Whale-lice (Amphipoda: Cyamidae) recorded from The Netherlands
Provedor de dados: 16
Autores: Fransen, C.H.J.M.; Smeenk, C.
Records of four species of whale-lice from Dutch waters are given. Species are figured and a diagnosis of each species is given. The relationship between whale-lice and their hosts is discussed.
Tipo: Article / Letter to the editor
Palavras-chave: Amphipoda; Cyamidae; Cetacea; The Netherlands; 42.74.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/319145

The taxonomic position of the genus Argamania Papp (Hymenoptera: Braconidae)
Provedor de dados: 16
Autores: Achterberg, C. van.
The genus Argamania Papp, 1989 is redescribed and fully illustrated. Its aberrant morphology is discussed and as a result it is transferred to the subfamily Braconinae in the tribe Argamaniini nov.
Tipo: Article / Letter to the editor
Palavras-chave: Braconidae; Braconinae; Argamania; Palaearctic; Distribution; 42.75.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/318976

Bupleurum falcatum L. nieuw voor Nederland
Provedor de dados: 16
Autores: Schaminée, J.H.J.; Hennekens, S.M.
In August 1991 Bupleurum falcatum was found on the Sint Pietersberg near Maastricht in the Dutch province of Limburg; it is likely that the establishment of Bupleurum falcatum here is spontaneous, as can be concluded from the distribution pattern of this species in the surrounding countries, as well as from the habitat of this locality (chalk grassland). Apart from a population in a so-called ‘orchid garden’, where it was (unintentionally) planted out together with the orchids, this species was considered not occurring in the Netherlands. By checking the plant collection of the Rijksherbarium in Leiden, however, it appeared that a specimen of Bupleurum falcatum was present, collected by J. Bloeme in 1965 from a locality at the eastern slope of the Jeker...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/528019

Voortvarend (1)
Provedor de dados: 16
Autores: Barendregt, Huibert.
In deze nieuwe rubriek zal regelmatig de aandacht gevestigd worden op een soort of groep van soorten, die vanwege de verspreiding, de determinatiekenmerken of ander fenomeen wat meer aandacht verdient. Correspondentie wordt dan ook met belangstelling tegemoet gezien. De rubriek staat open voor bijdragen van alle FLORON-veldwerkers. In verband met een artikel dat in een van de volgende afleveringen van Gorteria zal verschijnen over de Liggende ganzevoet (Chenopodium pumilio) en het Druifkruid (Chenopodium botrys) wordt informatie gevraagd over deze soorten.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527253

Studies in Coprinus—II. Subsection Setulosi of section Pseudocoprinus
Provedor de dados: 16
Autores: Ujlé, C.B.; Bas, C.
A key is given to the Netherlands’ species of subsect. Setulosi J. Lange of Coprinus sect. Pseudocoprinus (Kühn.) P.D. Orton &amp; Watling. Some additional species are also included. All species dealt with are concisely described and fully discussed. A few probably new species are described ad interim. Type-material has been examined of C. bisporiger, C. eurysporus, C. fallax, C. subpurpureus, and C. subimpatiens.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/531730

The atyid shrimps of Fiji with description of a new species
Provedor de dados: 16
Autores: Choy, S.C.
Fourteen species of shrimps belonging to four genera of the family Atyidae are reported from the Fiji Islands. Three genera are represented by only one species each: Antecaridina lauensis (Edmondson, 1935), Atyoida pilipes (Newport, 1847) and Atyopsis spinipes (Newport, 1847) while the fourth, Caridina is represented by eleven species (including one new, Caridina devaneyi spec. nov. which is described and illustrated). Keys are provided to separate the genera and species. Two species, Caridina japonica De Man, 1892 and C. longirostris H. Milne Edwards, 1837 are recorded from Fiji for the first time. C. devaneyi spec, nov., C. fijiana Choy, 1983 and C. nudirostris Choy, 1984 are so far known only from Fiji and may be endemic to the island of Viti Levu. All...
Tipo: Article / Letter to the editor
Palavras-chave: Shrimps; Decapod Crustacea; Caridea; Atyidae; Antecaridina; Atyoida; Atyopsis; Caridina; Review; Distribution; New records; Description; New species; Fiji; 42.74.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/319000

Allocation of Laophonte trispinosa Sewell to Xanthilaophonte gen. nov. and the description of X. carcinicola spec. nov. (Harpacticoida: Laophontidae)
Provedor de dados: 16
Autores: Fiers, F.
Laophonte trispinosa Sewell is reported here from various localities in the Indian and the West Pacific Ocean, and is allocated to the herein erected genus Xanthilaophonte gen. nov. A second species, X. carcinicola spec. nov. is described from Indon »sia. The genus Xanthilaophonte gen. nov. is most closely related with Echinolaophonte Nicholls. Both species of this genus live in association with decapods, mainly Xanthidae, and occur on the carapax of their hosts, between the bristles. Comparison of the copepodid development clearly shows that the advanced morphology of Xanthilaophonte gen. nov. resulted from heterochrony events.
Tipo: Article / Letter to the editor
Palavras-chave: Crustacea; Copepoda; Laophontidae; Laophonte; Xanthilaophonte; Indo-West Pacific; Indonesia; New species; 42.74.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/319198

Herbaria, gardens, organisations
Provedor de dados: 16
Autores: NN.
The holdings of BRUN stood at 10,815 numbers at 31 December 1990. Of these, D.S. EDWARDS (Universiti Brunei Darussalam) contributed 113 numbers of Brunei ferns. The second Flora Malesiana Symposium will be held from 7-12 September 1992 at the Garuda Hotel, Yokyakarta, Indonesia. There will be two major themes, taxonomy and biodiversity with an emphasis more on action than on theory. A First Circular should be out by the middle of 1991. For more information please contact Dr. M. RIFAI, Herbarium Bogoriense, Jl. Raya Juanda 22-24, Bogor, Indonesia. On 6 September 1992 a Board Meeting of the Foundation Flora Malesiana will be held.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/533038

A taxonomic review of the Pterophoridae (Lepidoptera) from Argentina and Chile
Provedor de dados: 16
Autores: Gielis, C.
The known species of Pterophoridae occurring in Argentina and Chile are reviewed. Nearly all the available type specimens of species occurring in the area have been examined and five new synonyms have been established. Some primary types are considered to be lost. In this paper three new genera and 29 new species are described. The adults of all species, and the male and female genitalia are illustrated. The distribution is mapped.
Tipo: Article / Letter to the editor
Palavras-chave: Pterophoridae; Neotropics; Argentina; Chile; Distribution; Keys.; 42.75.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/317669

Cupaniopsis Radlk. (Sapindaceae) a monograph
Provedor de dados: 16
Autores: Adema, Frits.
A monograph of Cupaniopsis Radlk. (Sapindaceae) recognized. One species, is presented. Sixty species (20 new) are C. macrocarpa, is subdivided into two varieties (one new). Several regional keys and a multy-entry key give access to the species. Pollen morphology and leaf anatomy were studied beside macromorphology. This resulted in 40 characters for a cladistic analysis. The result of an initial analysis was rejected for several reasons (chapter 10.5). Van Welzen’s enhancement method was used to produce a more acceptable cladogram (chapter 10.6). A short note on the biogeography is given.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/508226

Research and publications
Provedor de dados: 16
Autores: NN.
A checklist of the flora of Brunei Darussalam — A collaborative agreement between the Forestry Department of Brunei Darussalam (BRUN) and the Royal Botanic Gardens, Kew, was signed on 30 March, 1990. Preliminary work on the Project, however, began in June, 1989, with field work in Brunei carried out jointly by the staff of BRUN and K. In August, 1989, a systematic search began at K for all the Brunei specimens filed there and a computerized data base was started to record the label-data. Mr. L.L. FORMAN (K) is co-ordinator of the Project, while Dr. J. DRANSFIELD is responsible for the liaison with BRUN. In addition three students are employed by K. In succession each spends one year assisting with building up the database and general processing of the...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/533090

Bromus (Gramineae) in Malesia
Provedor de dados: 16
Autores: Veldkamp, J.F.; Eriks, M.; Smit, S.S.
Bromus L. (Gramineae) has 9 species in Malesia, two are introduced (B. catharticus Vahl, B. diandrus Roth, incl. B. rigidus Roth), one is newly described (B. timorensis), one is given a new combination (B. kinabaluensis), and B. morrisonensis Honda is a new record (Luzon)one is given a new combination.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/526169

Respect voor de natuur: ethische achtergronden
Provedor de dados: 16
Autores: Achterberg, Wouter.
In het Natuurbeleidsplan (NBP, de Regeringsbeslissing van 1990) wordt als hoofddoelstelling van het rijksbeleid ten aanzien van natuur en landschap gesteld: duurzame instandhouding, herstel en ontwikkeling van natuurlijke en landschappelijke waarden.¹ Het voegt hieraan toe dat de hoofddoelstelling wordt nagestreefd “met het oog op de betekenis van natuur en landschap voor de mens en uit respect voor de zelfstandige waarden die aan de natuur worden toegekend.” De term ‘duurzaam’ in de hoofddoelstelling verwijst naar duurzame ontwikkeling, de hoofddoelstelling van het Nationaal Milieubeleidsplan (NMP), aldaar omschreven als ontwikkeling die voorziet in de behoeften van de huidige generatie zonder daarmee voor toekomstige generaties de mogelijkheden in gevaar...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527594

Editorial
Provedor de dados: 16
Autores: NN.
The year 1991 is one of retrospect and prospect. Retrospect, because it is 250 years ago that the first volume of the ‘Herbarium amboinense’ by G.E. Rumphius (1628-1702) finally appeared. Notwithstanding the many commentaries devoted to it, starting with Linnaeus through his student O. Stickman’s Thesis (1754), Merrill’s ‘Interpretation’ to De Wit’s ‘Checklist’ (1959) it is still the only regional flora for the Moluccas. It were to be wished that a small team of botanists well-versed in the Malesian flora and local languages with the tomes in hand would spend some time searching for the Rumphian species, many of which have a doubtful identity, consulting the local dukuns before their lore is lost. A similar project for Rheede’s ‘Hortus malabaricus’ by...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/533136

Professor Kalkman retires
Provedor de dados: 16
Autores: Baas, Pieter.
On 13 December 1990 Prof. Dr. Cornelis (Kees) Kalkman retired from the positions of Professor of Plant Systematics and Scientific Director of the Rijksherbarium/ Hortus Botanicus by presenting his valedictory lecture to the academic community of Leiden University and the assembled Dutch Botanical world. The day after, circa 170 staff members and partners joined in the research institute for a memorable farewell party, culminating in a show around the personality of the parting Director. Bom in Delft on 5 May 1928, Kalkman used the opportunity of early retirement at the age of 62, after a long term as an active and successful administrator and coordinator of research and teaching in plant taxonomy in Leiden. This now offers him the possibility to return to...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/524778

Excursies
Provedor de dados: 16
Autores: NN.
Allereerst willen we melden, dat er in 1991 geen FLORON-werkweek gehouden wordt, omdat we niet in staat zijn deze te organiseren. Onze excuses hiervoor! Via de districten zijn de volgende excursies aangemeld: Groot-Amsterdam (14): zondag 26 mei, inventarisatie-excursie Waterland rond Westzaan.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527737

Platypodiella georgei spec. nov. (Brachyura: Xanthidae), a new crab from the island of St. Helena, South Atlantic Ocean, with notes on the genus Platypodiella Guinot, 1967
Provedor de dados: 16
Autores: Hartog, J.C. den; Türkay, M.
A new species of Platypodiella Guinot, 1967, from the island of St. Helena, P. georgei spec, nov., is described. This species was found associated with encrusting species of Palythoa Lamouroux, 1816 (Zoantharia). Ample evidence is presented that both the eastern Atlantic P. picta (A. Milne-Edwards, 1869) and the western Atlantic P. spectabilis (Herbst, 1794) also live habitually associated with encrusting species of Palythoa, rarely with other zoantharians. For each of the two East-Pacific members of the genus, P. rotundata (Stimpson, 1860) and P. gemmata (Rathbun, 1902), there is at least one rather detailed published record suggesting that these species too associate with Palythoa. Thus, this habit would seem to go for all five members of the genus. Data...
Tipo: Article / Letter to the editor
Palavras-chave: Crustacea; Brachyura; Xanthidae; Platypodiella; Association; Zoantharia; Palythoa; Atlantic Ocean; St. Helena; Cape Verde Islands; Senegal; Eastern Caribbean; 42.74.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/318097

Boekaankondigingen
Provedor de dados: 16
Autores: Meijden, R. van der.
D. Aichele &amp; H.-W. Schwegler, Unsere Gräser. Süszgräser, Sauergräser, Binsen, Kosmos Naturführer, Franckh-Kosmos Verlag, Stuttgart, 1991, 10. Aufl., 224 pag., DM 49.80, ISBN 3-440-06201-5. * A. Aptroot, Biomonitoring met epifyten in het Noordhollands Duinreservaat, nv PWN Waterleidingbedrijf Noord-Holland, Essenlaan 10, 2061 GB Bloemendaal, 1991, 23 pag. + bijlage. — Resultaten van een onderzoek op 720 monsterpunten, bedoeld om de invloed van luchtverontreiniging te meten aan de hand van het voorkomen van mossen en lichenen.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527641

Review
Provedor de dados: 16
Autores: Uffelen, Gerda A. van.
A Gargantuan task has been accomplished: here is a complete survey of the spores of representatives of all genera of ferns and fern allies, studied with SEM and TEM. Some of the pictures have already been published in previous works of the two authors, of which Lugardon’s work has mainly been published in French; many of Tryon’s SEM pictures have appeared Tryon &amp; Tryon (1982). In the Introduction a condensation is given of all Lugardon’s extensive studies on sporogenesis, with some new additions (e.g., spherules, p. 9). Many of his excellent, detailed micrographs are used in order to describe spore wall development in all main groups of ferns and fern allies. The section on evolutionary levels of sporoderm organization treats fern characters in a very...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525005

A systematic revision of the piscivorous haplochromine Cichlidae (Pisces: Teleostei) of Lake Victoria (East Africa). Part I
Provedor de dados: 16
Autores: Oijen, M.J.P. van.
The distinction between Harpagochromis and Prognathochromis, and the distinction between these and other cichlid genera of Lake Victoria as proposed by Greenwood (1980), is demonstrated to be artificial. The BM(NH) collections of Haplochromis dichrourus and H. pellegrini were found to be polyspecific and are redescribed. On the basis of specimens formerly included in H. pellegrini a new species is described. Five new species are described based on material from the Mwanza Gulf and Maisome Island. Specimens of H. dichrourus from different areas of Lake Victoria are described separately to demonstrate geographic variation.
Tipo: Article / Letter to the editor
Palavras-chave: Cichlidae; Piscivorous haplochromine cichlids; Lake Victoria; Haplochromis; Harpago- chromis; Prognathochromis; New species; Geographical variation.; 42.81.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/317682

The taxonomic value of the ornamentation of spores in ‘The Xerocomus-group’ of Boletus
Provedor de dados: 16
Autores: Oolbekkink, G.T.
The taxa of the Xerocomus-group are considered to belong to the genus Boletus. The spore surface of 17 taxa of this group and the related Phylloporus rhodoxanthus have been studied with SEM. The taxa of the B. chrysenteron-complex can be distinguished from the B. subtomentosus-complex and the other taxa examined by their striate spores. Boletus parasiticus can be distinguished by its conspicuously pitted spore surface. The spores of the taxa in the B. subtomentosus-complex, B. bubalinus sp. nov. and B. armeniacus show a fibrillose or a floccose to smooth spore surface. Entirely smooth spores have been found in B. badius, B. moravicus, B. pulverulentus, and B. ichnusanus comb. nov. The spores of P. rhodoxanthus show a fibrillose, a floccose or a...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/531908

Vroege ereprijs (Veronica praecox All.) en Stijve wolfsmelk (Euphorbia stricta L.) opnieuw langs de Gelderse IJssel teruggevonden
Provedor de dados: 16
Autores: Weeda, E.J.
Twaalf jaar geleden verscheen in dit tijdschrift een artikel over Vroege ereprijs ( Veronica praecox), die na bijna 40 jaar (schijnbare) afwezigheid weer langs de Gelderse IJssel was teruggevonden.¹ Het ging toen om vondsten bij Gorssel (1974, 1975), gevolgd door één bij Deventer (1977). Daarna was het zoeken naar deze soort voorlopig weer tevergeefs. Maar op 29 mei 1991 werden op een rijke groeiplaats van Handjesereprijs (V. triphyllos) in het IJsseldal opnieuw Vroege ereprijs waargenomen, die daar in verspreide exemplaren tussen zijn talrijker optredende verwant groeide en daardoor niet erg opviel. Het betrof de rand van een roggeakker bij Brummen (33.47). De volgende opname geeft een indruk van de begroeiing: Proefvlak 2x½ m² Totale bedekking 40%: gewas...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527380

Progress in Malesian botany
Provedor de dados: 16
Autores: NN.
Mr. J.R. CABALQUINTO (PNH) is studying the moss flora of Batanes.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/532950

Chitons (Mollusca: Polyplacophora) procured by the CANCAP I-VII expeditions, 1976-86
Provedor de dados: 16
Autores: Kaas, P.
The 327 specimens of chitons captured during six out of seven CANCAP Expeditions have been examined. They belong to 26 species, including two recently described ones: Ischnochiton (Stenosemus) substriatus Kaas &amp; Van Belle, 1990 and Ischnochiton (Ischnochiton nicklesi Kaas &amp; Van Belle, 1990. Callistochiton pachylasmae (Di Monterosato, 1878) has been found off the coast of Morocco.
Tipo: Article / Letter to the editor
Palavras-chave: Polyplacophora; Madeira; Morocco; Selvagens Islands; Canary Islands; Mauretania; Cape Verde Islands; Azores; Taxonomy; Distribution; 42.73.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/319285

Review
Provedor de dados: 16
Autores: Leenhouts, P.W.
This beautiful flora covers one of the world’s most arid regions, 650,000 sq. km of sand, gravel, and limestone, a desert sparsely adorned by 565 species out of 322 genera of plants. Of these, 392 species and 236 genera are native; among the most extreme desertplants there are a few endemics. The most important families in number of native species are the Compositae (50, in 33 genera), the Grasses (47, resp. 31), the Chenopodiaceae (35, resp. 17), the Leguminosae (34, resp. 16), and the Cruciferae (30, resp. 22). A comparison with Bhandari’s ‘Flora of the Indian desert’, reviewed in this same issue, is interesting: though the area covered there is much smaller (some 25,000 sq. km), the numbers of genera and species as well as the most important families...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/524507

Nieuwe vondsten van zeldzame planten in 1988, 1989 en 1990
Provedor de dados: 16
Autores: Meijden, R. van der; Holverda, W.J.
The number of new records of rare fern species (among which three new Asplenium species) is remarkable, partly due to careful inventory work, but also because of spontaneous area expansion. Also Acer negundo and Stachys recta may show this phenomenon. It is uncertain whether Silene gallica must still be considered as extinct. Fortunately Wahlenbergia hederacea is part of the living flora again.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/526470

Cryptolepis lancifolia (Asclepiadaceae: Periplocoideae), a new species from Irian Jaya
Provedor de dados: 16
Autores: Forster, Paul I.
Cryptolepis lancifolia spec. nov. is described from Irian Jaya, New Guinea. A key to Cryptolepis R. Br. in New Guinea is provided.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/524491

Taxonomy and distribution of the Trifurcula (Glaucolepis) raikhonae group (Lepidoptera: Nepticulidae)
Provedor de dados: 16
Autores: Nieukerken, E.J. van; Purplesis, R.
Trifurcula (Glaucolepis) melanoptera sp. n. is described from southern Europe, where it is widespread. It is closely related to the Central Asian T. (Glaucolepis) raikhonae Puplesis, which is redescribed. Together they form the raikhonae species group. Sinopticula Yang is here synonymized with Glaucolepis Braun, its only species S. sinica Yang is tentatively regarded as closely related, if not conspecific with T. raikhonae. The distribution is mapped. On the basis of recent Chinese findings the larvae are assumed to be gall-makers on Prunus branches. Some phylogenetic and biogeographic remarks are given.
Tipo: Article / Letter to the editor
Palavras-chave: Lepidoptera; Trifurcula (Glaucolepis); Palaearctic region; Distribution &amp; systematics; Invertebrates; Arthropods; Insects; Lepidopterans; Nepticulidae; Turkmenia; Afghanistan; Uzbekistan; Kazakhstan; Kirgistan; Tadzhikistan; China; Spain; France; Italy; Sardinia; Austria; Slovakia; Hungary; Croatia; Turkey; Ukraine; Crimea; Armenia; Turkmenia; Glaucolepis melanoptera; 42.75.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/227699

The authentic garden : a symposium on gardens
Provedor de dados: 16
Autores: Tjon Sie Fat, L.A.; Jong, E.A. de.
Bijdragen aan het symposium gehouden in 1990 te Leiden
Tipo: Book (monograph)
Palavras-chave: Congres; Tuinen; Geschiedenis; Landschapskunst; Tuinarchitectuur; 21.74.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/451562

A note on three species of Taractrocera Butler (Lepidoptera: Hesperiidae)
Provedor de dados: 16
Autores: Jong, R. de.
Three similar looking species of Taractrocera, generally known as ziclea Plötz, archias Felder and alinea Plotz, are re-examined and existing confusion is clarified. As a consequence, the correct name for the first species is shown to be T. luzonensis (Staudinger), and for the last species T. nigrolimbata (Snellen). The name Thymelicus ziclea Plötz turned out to be a junior synonym of Pamphila archias Felder. Diagnostic characters are given to separate the three species, and the geographic variation is surveyed.
Tipo: Article / Letter to the editor
Palavras-chave: Lepidoptera; Hesperiidae; Taractrocera; Systematics; Nomenclature; 42.75.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/318768

The European and Mediterranean species of Aglaophenia (Cnidaria: Hydrozoa)
Provedor de dados: 16
Autores: Svoboda, A.; Cornelius, P.F.S.
The eleven species of the hydroid genus Aglaophenia Lamouroux, 1812, recorded from European and Mediterranean waters are redescribed in detail and aspects of their biology discussed. A section on the identification of the European and Mediterranean species and a comprehensive glossary are included. Comments are given on type specimens, reproduction, ecology and distribution and, briefly, on other biological aspects. Certain of the species occur further north than previously realized. A. acacia Allman, 1883 and A. parvula Bale, 1882, are newly recorded from British waters, the latter being almost new to Europe. It differs only minutely from the widely-known A. pluma. A. kirchenpaueri (Heller, 1868) is added to the Irish faunal list, and has only recently...
Tipo: Article / Letter to the editor
Palavras-chave: Cnidaria; Hydrozoa; Plumulariidae; Aglaopheniinae; Aglaophenia; Glossary; Identifi- cation key; Taxonomy; Systematics; Linnaeus; European fauna; Mediterranean fauna; Type specimen designations.; 42.72.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/317641

The identity of Toxocarpus papuanus van Royen (Asclepiadaceae)
Provedor de dados: 16
Autores: Forster, Paul I.
Toxocarpus papuanus van Royen is a species of Marsdenia and is renamed as Marsdenia argentata P. Forster. A detailed description and illustration is provided.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525823

A new and presumably now extinct species of Millepora (Hydrozoa) in the eastern Pacific
Provedor de dados: 16
Autores: Weerdt, W.H. de; Glynn, P.W.
A new species of hydrocoral, Millepora boschmai, is described from the Gulf of Chiriqui, Pacific Panamá. This species was first found in the early 1970's, but it has disappeared from this area as a result of the severe 1982-83 El Nino-Southern Oscillation (ENSO) event. Because the species has never been encountered outside the Gulf of Chiriquí, it is assumed that it was endemic to this area and that its disappearance marks an extinction event, representing the first documented case of a modern extinction of a tropical marine organism due to natural causes.
Tipo: Article / Letter to the editor
Palavras-chave: Millepora; Hydrozoa; New species; Extinction; East Pacific; 42.72.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/318045

New observations on scleractinian corals from Indonesia: 2. Sipunculan-associated species belonging to the genera Heterocyathus and Heteropsammia
Provedor de dados: 16
Autores: Hoeksema, B.W.; Best, M.B.
Three Indonesian species of Heterocyathus and two of Heteropsammia are briefly diagnosed. Remarks are given on their synonymy, phenotypic variation, and ecology. All five species are found on soft substrata in the proximity of coral reefs and live in association with a sipunculan worm. This interspecific assocation is discussed with regard to whether it is mutualistic or parasitic.
Tipo: Article / Letter to the editor
Palavras-chave: Scleractinia; Free-living reef corals; Mutualism; Parasitism; Sipunculan worm; Indonesia; 42.72.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/317921

Description and mapping of the coral reefs investigated during the Snellius-II Expedition in Indonesia
Provedor de dados: 16
Autores: Duyl, F.C. van.
Macrohabitat distribution, zonation and morphology of coral reefs in the Flores Sea region were investigated. Descriptions of reefs and reef maps are presented, based on large area surveys and aerial photographs. Diving equipment, underwater scooter, depth recorder and different methods of aerial photography were employed to collect data. The aim of the surveys was to acquire synoptic views of the study areas and to attribute to a uniform classification system applicable to reef mapping throughout the archipelago.
Tipo: Article / Letter to the editor
Palavras-chave: Coral reefs; Flores Sea; Indonesia; Mapping; 42.72.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/318152

A monograph of the fern Genus Microsorum (Polypodiaceae) including an attempt towards a reconstruction of the phylogenetic history of the microsoroids
Provedor de dados: 16
Autores: Bosman, M.T.M.
This revision is a monographic treatment of the fern genus Microsorum (Polypodiaceae). To elucidate the problematic generic delimitation and systematic position of this genus an additional selection of 26 possibly related species was also studied. Most of these related species are traditionally placed in Colysis, Leptochilus, Neocheiropteris, Paraleptochilus, Phymatosorus (‘Phymatodes’), and Podosorus. In order to produce a natural classification an attempt is made to recognize monophyletic groups of species through cladistic analysis. The methods and underlying theories which have been employed are made explicit as much as possible. A suitable selection of intrinsic characters is used for analysis with the computer programs CAFCA, PAUP and HENNIG86. The...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/508238

Revision of the genera of the Afrotropical and W. Palaearctic Rogadinae Foerster (Hymenoptera: Braconidae)
Provedor de dados: 16
Autores: Achterberg, C. van.
The genera of the subfamily Rogadinae Foerster, 1862 sensu stricto from the Afrotropical and W. Palaearctic regions are revised. Keys to the species of several genera are given and all genera are fully illustrated. Five new genera are described: Aspidorogas gen. nov. (type species: Aspidorogas fuscipennis spec. nov.), Korupia gen. nov. (type species: Korupia curvinervis spec. nov.), Myocron gen. nov. (type species: Myocron antefurcale spec. nov.), Pholichora gen. nov. (type species: Hemigyroneuron madagascariensis Granger, 1949), and Rectivena gen. nov. (type species: Cystomastax madagascariensis Granger, 1949). Two taxa are renamed: Aleiodes convexus nom. nov. for A. rufithorax (Enderlein, 1912) nec Cameron, 1911, and Scoporogas nom. nov. for...
Tipo: Article / Letter to the editor
Palavras-chave: Braconidae; Rogadinae; Lysitermini; Rogadini; Pentatermini; Clinocentrini; Keys; Palaearctic; Afrotropical; Distribution; Biology.; 42.75.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/317741

Miscellaneous notes on Southeast Asian Gramineae. VI
Provedor de dados: 16
Autores: Veldkamp, J.F.
In Oryza a new combination for an Indian wild rice and a new specific record for Oryza minuta Presl for Australia are given. A new combination in Polytrias is proposed, due to which Ischaemum ciliare Retz. must be reinstated for I. indicum auct., non (Houtt.) Merr.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525831

Hormaphidinae from Java (Homoptera: Aphididae)
Provedor de dados: 16
Autores: Noordam, D.
Descriptions are given of 18 genera and 56 species, with keys to the apterae and alatae viviparae. The following new genera and species are described: Astegopteryx glandulosa spec. nov., from Gigantochloa spec. and other bamboos; A. setigera spec. nov., from Styrax benzoin Dryander; Cerataphis pothophila spec. nov., from Pothos roxburghii de Vriese; Ceratovacuna floccifera spec. nov., from bamboo; C. keduensis spec. nov., from bamboo; Distylaphis gen. nov. (with type species Schizoneuraphis foliorum Van der Goot, 1917); Mesothoracaphis gen. nov. (with type species Thoracaphis rappardi H.R. Lambers and Takahashi, 1969); Metanipponaphis vandergooti spec. nov., from Lithocarpus sundaicus (Bl.) Rehd.; Neohormaphis gen. nov., with N. calva spec. nov. from...
Tipo: Article / Letter to the editor
Palavras-chave: Aphididae; Aleurodaphis; Astegopteryx; Cerataphis; Ceratoglyphina; Ceratovacuna; Distylaphis; Euthoracaphis; Glyphinaphis; Mesothoracaphis; Metanipponaphis; Neohormaphis; Nipponaphis; Pseudoregma; Rappardiella; Reticulaphis; Schizoneuraphis; Sinonipponaphis; Thoracaphis; Taxonomy; Key; Java; Galls; Bamboo; Palms; Orchids.; 42.75.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/317868

The near future of Flora Malesiana
Provedor de dados: 16
Autores: Kalkman, C.
If we define the near future as the next five years, it can be said that there will be a considerable output of family revisions that can be published. Without undue optimism more than 30 family treatments will have been published before 1996 or their manuscripts will be in the hands of the editors.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/533005

Papuacalia (Compositae). A new genus for the woody Senecios of New Guinea
Provedor de dados: 16
Autores: Veldkamp, J.F.
The woody Senecio species occurring in New Guinea belong to a distinct genus, Papuacalia. Ten new combinations are made and three new species and one subspecies are described. Brachionostylum Mattf. and Bedfordia DC. are distinct
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525486

The two New Guinea species of Lepiderema Radlk. (Sapindaceae)
Provedor de dados: 16
Autores: Schot, Anne M.
A key to and descriptions of the two New Guinea species of the genus Lepiderema are provided: L. melanorrhachis Merr. &amp; Perry and L. papuana Radlk.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525149

Ruimte voor vogels, een zaak van beschaving
Provedor de dados: 16
Autores: NN.
De manier waarop in onze cultuur gedacht en gehandeld wordt ten aanzien van vogels is op zijn zachtst gezegd zeer dualistisch en inconsequent. Dit uit zich door een in de tijd steeds wisselend standpunt over en gedrag naar een bepaalde vogelsoort. Daarnaast is in een periode ook een groot verschil te zien in het denken en handelen ten opzichte van de verschillende aanwezige soorten.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527587

Conspectus of Myristica (Myristicaceae) in Australia, with the description of a new species from Queensland
Provedor de dados: 16
Autores: Wilde, W.J.J.O. de.
In Australia three species of Myristica are recognized: M. muelleri Warb., M. insipida R. Br. and one species, M. ampliata de Wilde, newly described here; the specimen Lucas (&amp; Wilson) 10, possibly representing a fourth taxon, of unknown status, is discussed under M. insipida. Presented are a key to the species, an enumeration of species with notes, and a brief discussion of characters, relationships, and distribution.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525451

Marcgraf's (1648) Brazilian Crustacea
Provedor de dados: 16
Autores: Holthuis, L.B.
An inventory is given of the Crustacea described and figured in N.E. Brazil during the governorship of Johan Maurits van Nassau (1637-1644). Of each of the 31 species the available sources of information are discussed and an identification has been attempted.
Tipo: Article / Letter to the editor
Palavras-chave: Georg Marcgraf; Johan Maurits van Nassau; W. Piso; Brazil; Crustacea; Cirripedia; Isopoda; Stomatopoda; Decapoda; 17th century.; 42.74.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/317726

Over de nieuwe streeplijst en het vraagstuk van de volledigheid van inventarisaties
Provedor de dados: 16
Autores: Meijden, Ruud van der; Barendregt, Huibert.
Dit voorjaar is er een nieuwe streeplijst uitgekomen onder de verantwoordelijkheid van de Stichting FLORON en het onderzoekinstituut Rijksherbarium/Hortus Botanicus. Deze streeplijst is in twee versies beschikbaar: een met de wetenschappelijke namen (op het formulier rechtsboven met een W), en een met de Nederlandse namen (rechtsboven met een N). Er zijn enkele redenen om nader in te gaan op het nu beschikbare model. De voornaamste is wellicht dat uitgelegd moet worden waarom de FLORON/CBS-streeplijst, die pas het vorig jaar verscheen, niet meer wordt gebruikt. Daarnaast zal worden toegelicht hoe de huidige streeplijst tot stand is gekomen. (Terzijde: omdat het aangeven van de plantenvondsten niet meer door aanstrepen maar door aankruisen of invullen van...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/528007

New observations on scleractinian corals from Indonesia: 3. Species belonging to the Merulinidae with new records of Merulina and Boninastrea
Provedor de dados: 16
Autores: Borel - Best, M.; Suharsono.
Nine coral species belonging to four genera (one new for Indonesia) and their adaptation to different environmental conditions are discussed. The rare species Merulina triangularis (Veron &amp; Pichon, 1979) and Boninastrea boninensis Yabe &amp; Sugiyama, 1935 are recorded for the first time from Indonesia.
Tipo: Article / Letter to the editor
Palavras-chave: Reef corals; Merulinidae; New records; Taxonomical changes; Buginesia Programme; Snellius-II expedition; Merulina; Boninastrea; 42.72.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/318841

New taxa in the Tectaria Group (Polypodiaceae) from Malesia
Provedor de dados: 16
Autores: Holttum, R.E.
In November 1989 we received from Professor R.E. Holttum his last manuscript for Flora Malesiana. He must have worked for many years to finish this publication on a very difficult group of ferns. For several reasons, not in the least because the manuscript was by no means small, it took a long time before the editing and typesetting were finished. Many new names were given and taxa described by Professor Holttum. Since new taxa are no longer published in Flora Malesiana (new style), this precursor on new species and varieties (and a few new combinations) is published in Blumea, later this year to be followed by the complete revision in Flora Malesiana, series II, volume 2¹, Pteridophyta. The following new species and varieties are described here: Tectaria...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525432

Pollen morphology of the Stemonaceae
Provedor de dados: 16
Autores: Ham, R.W.J.M. van der.
A pollen-morphological survey of all four genera of the Stemonaceae at the light and electron microscope level is presented. Stemonaceae is a eurypalynous family. Stichoneuron pollen, up to now described as monosulcate, appears to be inaperturate. Pentastemona pollen is most deviating in Stemonaceae. Its sexine consists of elements that resemble Ubisch bodies very much. It shares several features with pollen of Peliosanthes (Convallariaceae) and Trillium (Trilliaceae). However, the closest relatives of Pentastemona could not be traced with the available pollen-morphological evidence.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/526247

Notes on Ericaceae from Papua New Guinea
Provedor de dados: 16
Autores: Veldkamp, J.F.
One new species is described in the genera Agapetes and Vaccinium, each. Vaccinium acutissimum F. Muell. var. pilosistylum is raised to specific rank. An intersubsectional hybrid between Rhododendron alticolum Sleum. and R. rubellum Sleum. is noted.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/524680

Conspectus of the genera Scurrula L. and Taxillus Tieghem (Loranthaceae) in the Malesian region
Provedor de dados: 16
Autores: Barlow, Bryan A.
The closely related genera Scurrula and Taxillus are reviewed for the Malesian region as a precursor to a treatment for Flora Malesiana. Scurrula is represented in the region by 8 species, of which S. aphodastrica and S. didyma are described as new. Taxillus is represented by one species, T. chinensis. The two genera are part of a floristic element of Gondwanan derivation which has reached the region from the Asian mainland, undergoing limited species radiation, and making a limited advance eastwards across Charles’ Line.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/524538

Moerasmelkdistel (Sonchus palustris L.) en Grote engelwortel (Angelica archangelica L.) langs het Twentekanaal: indicatoren van gebiedsvreemd water
Provedor de dados: 16
Autores: Boedeltje, G.
In the Netherlands Sonchus palustris is a species characteristic of the borders of mostly oligohaline waters. Its optimum is in the western part of the country. In 1934 Angelica archangelica was found for the first time in the Netherlands along the river Waal. Since that time this species has expanded its area, mainly along the lower reaches of the main rivers and the borders of the IJsselmeer. This species grows in the same habitat as Sonchus palustris. In 1990 new pockets of both species were found in the eastern part of the Netherlands, along the Twentekanaal (fig. 3, 7). Here they grow in a community of tall perennials (table 1, fig. 8). In dry periods water from the river IJssel (a branch of the Rhine), loaded with salts and other pollutants, is...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527295

On Trichia alpicola (Eder, 1921) from Switzerland (Mollusca: Gastropoda Pulmonata: Hygromiidae) and the spiral sculpture on its shell
Provedor de dados: 16
Autores: Gittenberger, E.; Neuteboom, W.H.
The nominal taxon Fruticicola villosa var. alpicola Eder, 1921, is provisionally considered a separate Trichia species next to T. villosa. The hairs and the spiral sculpture on the shells of both species are illustrated.
Tipo: Article / Letter to the editor
Palavras-chave: Pulmonata; Hygromiidae; Trichia; Taxonomy; Microsculpture; Switzerland; 42.73.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/319004

Scleractinia of Taiwan: II. Family Fungiidae (including a new species)
Provedor de dados: 16
Autores: Hoeksema, B.W.; Dai, C.-F.
The Fungiidae of Taiwan are treated as a part of a series dealing with the Taiwanese Scleractinia. A total of 27 species, classified with seven subgenera and eight genera, are briefly described. One species, Fungia (Pleuractis) taiwanensis, is new to science.
Tipo: Article / Letter to the editor
Palavras-chave: Scleractinia; Fungiidae; Taiwan; New species; 42.72.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/268399

Three new Harpacticoid Copepods from the Santa Maria Basin off the Californian Pacific coast (Copepoda, Harpacticoida)
Provedor de dados: 16
Autores: Fiers, Frank.
Three new harpacticoid copepods from the Santa Maria Basin off the south-central Californian coast are described: Zosime pacifica n. sp., Cletodes macrura n. sp. Cletodes tuberculatus n. sp. The three species are the most dominant harpacticoids found during a sampling program studying the possible effects of oil and gas developments in this area. The description of the copepodids of each species is included and a key to the species of the genus Cletodus is given.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/504780

Pollinating fauna of a phryganic ecosystem: species list
Provedor de dados: 16
Autores: Petanidou, Th.
Studies on the pollination biology of Mediterranean scrub vegetations (maquis and phrygana) are not available as yet on an ecosystem level. To analyse in detail the pollination food web of the phrygana, the vegetation and the pollinator fauna of a phryganic ecosystem near Athens has been continuously monitored during a period of fifty months, April, 1983 – May, 1987 (Petanidou, 1991). The study site, at Dafni, approx. 10 km W of the centre of Athens, was a 30 ha part of the Diomedes Botanical Garden of the University of Athens; see Petanidou &amp; Ellis (submitted) for more details. The number of pollinator species amounted to 666, which is the highest pollinator alpha diversity recorded so far for any ecosystem. A large proportion of the fauna (262...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/506362

Sporobolus (Gramineae) in Malesia
Provedor de dados: 16
Autores: Baaijens, G.J.; Veldkamp, J.F.
In Malesia the genus Sporobolus R. Br. (Gramineae) is represented by 4 sections, 3 here newly distinguished, with 10 species, 2 new. Sporobolus indicus (L.) R. Br. has 5 varieties, 1 new, and 3 with a new rank: var. creber (De Nardi) Veldk., var. flaccidus (R. &amp; S.) Veldk., and var. major Baaijens [S. creber De Nardi, S. diandrus (Retz.) Beauv., and S. fertilis (Steud.) Clayton, respectively]. Some other non-Malesian taxa have also been reduced to varieties, e.g. S. laxus Simon from Queensland (var. queenslandicus Veldk.), and S. pyramidalis Beauv. [var. pyramidalis (Beauv.) Veldk., incl. S. jacquemontii Kunth] from Africa and America. The Indian species generally known as S. tremulus – a superfluous name for S. virginicus (L.) Kunth -is reduced to a...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525171

Boekaankondigingen
Provedor de dados: 16
Autores: Meijden, R. van der.
M. Amesz &amp; C. Jasperse, Een houtwal in Oostelijk Flevoland? Onderzoek naar de doelmatigheid van een oecologische verbindingszone tussen de bosgebieden Roggebotzand en Hollandse Hout in Oostelijk Flevoland, Wetenschapswinkel Biologie, Oudegracht 320, 3511 PL Utrecht, 1991, 83 pag., ƒ 12,50, ISBN 90- 5209-018-1 (rapportnummer 1991-118). A. Binz &amp; C. Heitz, Schul- und Exkursionsflora für die Schweiz mit Berücksichtigung der Grenzgebiete, Verlag Schwabe &amp; Co. AG, Basel, 19e druk, 1991, 640 pag. + 860 afb., sFr. 32.00, DM 38.00, ISBN 3-7965-0892-8.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/526618

Five new species of the genus Dendronephthya Kukenthal, 1905, (Octocorallia: Nephtheidae) from the Indian Ocean
Provedor de dados: 16
Autores: Verseveldt, J.; Ofwegen, L.P. van.
Five new species of Dendronephthya from the Indian Ocean are described and figured: Dendronephthya (Morchellana) bruuni, D. (M.) hystricosa, D. (M.) pyriformis, D. (M.?) staphyloidea and D. (Roxasia) vervoorti.
Tipo: Article / Letter to the editor
Palavras-chave: Octocorallia; Nephtheidae; New species; Indian Ocean; 42.72.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/318454

Review
Provedor de dados: 16
Autores: Wilde, W.J.J.O. de.
This book seems to belong to – and certainly should be used side by side with – the late Marius Jacobs’ “The tropical rain forest – a first encounter” (Dutch version 1981; English edition 1988, 295 pp.), as it has much the same design and contents, and is similarly richly illustrated; it also aims at a better understanding of the necessity in saving the forest for the future. The present volume somewhat more focuses on ecology proper, tries to explain it, and tells what is happening today with the forests, to a broad reading public which surely includes politicians and all kinds of tropical scientists. There is a glossary, and for readers further interested a list of references, and a general index. The nicely executed book contains, as compared to...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525666

Gaidropsarus pacificus (Temminck &amp; Schlegel), a junior synonym of Rhinonemus cimbrius (Linnaeus) (Pisces: Gadiformes: Gadidae)
Provedor de dados: 16
Autores: Machida, Y.
The gadid fish, Gaidropsarus pacificus, originally described as Motella pacifica by Temminck &amp; Schlegel (1842) is reduced to a junior synonym of Rhinonemus cimbrius (Linnaeus, 1758). Confusion on the systematic status of Gaidropsarus pacificus seems to have resulted from the inadequate description of barbels in the original description of Motella pacifica.
Tipo: Article / Letter to the editor
Palavras-chave: Gadiformes; Gadidae; Gaidropsarus pacificus; Rhinonemus cimbrius; Synonym; 42.81.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/319348

Studies in Malesian Vitaceae X. Two new species of Tetrastigma from Borneo
Provedor de dados: 16
Autores: Latiff, A.
Tetrastigma steenisii and Tetrastigma megacarpum, two new species from Borneo, are herein described and illustrated. Conspicuous and distinctive features of T. steenisii are the simple leaves and the smooth manifestly grass-like stem; T. megacarpum has large ellipsoidal berries and digitate leaves with 5 leaflets.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525276

The tuberous epiphytes of the Rubiaceae 3: A revision of Myrmephytum to include Myrmedoma
Provedor de dados: 16
Autores: Huxley, C.R.; Jebb, M.H.P.
Myrmedoma Becc. is sunk into Myrmephytum Becc. on account of floral and inflorescence characters. Myrmephytum is revised to contain eight species, of which one is new and four are litde known.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525160

Phylogenetic relations and historical biogeography of Fordia and Imbralyx (Papilionaceae: Millettieae)
Provedor de dados: 16
Autores: Schot, Anne M.
Cladistic analyses are performed on morphological and anatomical data of Fordia and Imbralyx. It is shown that both genera should be unified. Biogeographical analysis is performed and vicariance events are presented as results of speciation events due to climatic changes in the Pleistocene. The necessary new combinations for the species in Fordia and a key to all species have been presented in a separate paper (Dasuki &amp; Schot, 1991, this issue).
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525923

Quelques Philopotamides orientaux nouveaux ou peu connus (Trichoptera, Annulipalpia)
Provedor de dados: 16
Autores: Schmid, F.
Dix-sept nouvelles espèces appartenant aux genres Dolopsyche n. gen., Dolomyia n. gen., Wormaldia McLachlan et Doloclanes Banks sont ici décrites de l’Inde. Quelques considérations zoogéographiques sur le groupe de gabriella du genre Wormaldia et sur le genre Doloclanes sont également données.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/505217

The Malesian species of Sarcopteryx Radlk. (Sapindaceae)
Provedor de dados: 16
Autores: Welzen, P.C. van.
The Malesian species of the genus Sarcopteryx are revised. Seven species are recognized, of which two, Sarcopteryx crispata and especially S. squamosa are very variable. Three new species are described: Sarcopteryx caudata, S. crispata, and S. rubiginosa.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525526

Review
Provedor de dados: 16
Autores: Nooteboom, H.P.
This atlas is the first of a series of three intended to give a factual basis to the forest conservation debate and aims to present a rigorous scientific basis for the current debate about precious ecosystems. In part I, the issues at stake are discussed with chapters amongst others on forest wildlife, people of the forest (the case of the forest people under threat is very sensibly discussed in this chapter), shifting cultivation, natural rain forest management, tropical timber trade, the protected areas system, etc. The chapters are written by many different authors, nicely illustrated with colour photographs, and maps and/or graphs where appropriate. At the end of each chapter references are given. This part alone is already unique in the amount of...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/524790

Two more Menkia species (Mollusca: Gastropoda Prosobranchia: Aciculidae)
Provedor de dados: 16
Autores: Gittenberger, E.
Two recent Menkia species are described as new to science, viz. M. dewinteri. and M. rolani. The generic diagnosis is adjusted and a revised identification key, as well as a new distribution map are given for the four Menkia species known at present. A peculiar microsculpture of unknown taxonomic relevance is described and illustrated for shells of the three recent Menkia species.
Tipo: Article / Letter to the editor
Palavras-chave: Prosobranchia; Aciculidae; Menkia; Taxonomy; Distribution; Key; Spain; 42.73.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/318548

Omgang met planten
Provedor de dados: 16
Autores: NN.
De titel van dit symposium luidt: “Respect voor de natuur.” Het zal u opgevallen zijn, dat de drie sprekers van hedenmorgen dit respect ook in de titels van hun voordrachten hebben opgenomen, maar dat ik een andere ingang heb gekozen en die “Omgang met planten” heb genoemd. Waarvoor kan men zoal respect hebben? Stellig voor de natuur, maar niet alleen voor haar. Uiteraard behoren we respect te hebben voor onze medemensen, maar die kan men met enige goede wil nog wel tot de natuur rekenen. Dat kunnen we echter niet doen met kunstwerken. Toch zullen we voor grote kunstwerken wel degelijk respect hebben: voor de Sixtijnse Kapel, de kathedraal van Chartres, de schilderijen van onze Gouden Eeuw, de pianoconcerten van Mozart. Uit de omstandigheid dat we respect...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527093

Van Breda’s genera et species Orchidearum Fasc. IIII effectively published
Provedor de dados: 16
Autores: Steenis-Kruseman, M.J. van; Veldkamp, J.F.
The thin formidable-sized folio book by J.G.S. van Breda ‘Genera et species Orchidearum, etc.’ is a little-known publication even to orchidologists, as most of the new names proposed in it have disappeared into synonymy long ago. It was never finished, only three fascicles of the eighteen promised are generally supposed to have been published. For their publication dates see De Wit (1950) and Stafleu &amp; Cowan (1976). In the library of the former ‘Koloniaal Museum’, Haarlem, the Netherlands, now the ‘Koninklijk Instituut voor de Tropen’ (KIT), Amsterdam, the former draughtsman of the Flora Malesiana Foundation and amateur orchidologist J. Vuijk found a copy which contained not three, but four fascicles. At that time this was merely briefly noted (Van...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/533390

Respect voor de natuur in het overheidsbeleid
Provedor de dados: 16
Autores: NN.
In onze westerse democratieën, en dus ook in ons land, ‘krijgt het volk de regering die het verdient’. We kiezen onze overheid zelf, en hoewel de meningen, idealen en beginselen van de regering en volksvertegenwoordiging geen volstrekte afspiegeling zijn van die van de burgers, is de mate van afwijking gering. De eens in de vier jaar in handen van de overheid gegeven macht wordt vanuit de samenleving voortdurend geconfronteerd met allerlei vormen van ‘countervailing power’: vele maatschappelijke belangengroepen oefenen voortdurend invloed uit op het overheidsbeleid: politieke partijen, vakbeweging, werkgeversorganisaties, milieubeweging, boerenorganisaties, autolobby, consumentenorganisaties, wetenschappers, waterwinbedrijven, projectontwikkelaars, kerken,...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527691

Some species of Tropocyclops (Crustacea, Copepoda) from Brazil, with a key to the American species
Provedor de dados: 16
Autores: Reid, Janet W.
Collections from the Brazilian Planalto and Amazon regions contained several species of the cyclopoid copepod genus Tropocyclops. The morphology of T. schubarti is discussed; new records of this species extend its known distribution westward to the Brazilian Amazon and central highlands. Morphological characteristics of some populations of the T. prasinusgroup are most similar to T. prasinus mexicanus and T. prasinus s. str. Tropocyclops federensis n. sp. and T. nananae n. sp. are described from the Distrito Federal. A key and chart are provided for the identification of species of Tropocyclops recorded from the Americas.
Tipo: Article / Letter to the editor
Palavras-chave: Taxonomy; Copepoda; Cyclopoida; Tropocyclops; New species; Brazil.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/504488

Annotated Catalogue of recent echinoderm type specimen in the collection of the Zoölogisch Museum Amsterdam
Provedor de dados: 16
Autores: Jangoux, Michel.
The Amsterdam Museum houses 2,047 type specimens of recent echinoderms representing 441 nominal species, 5 nominal subspecies, and 11 nominal varieties. Each species, subspecies or variety is presented (original name, current status, museum characteristics, brief bibliography, and eventual remarks).
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/505493

Natural history and distribution of Agalychnis craspedopus (Funkhouser, 1957) (Amphibia: Anura: Hylidae)
Provedor de dados: 16
Autores: Hoogmoed, M.S.; Cadle, J.E.
Aspects of reproductive behaviour, calls, clutch sizes, and larval morphology are described for Agalychnis craspedopus (Funkhouser, 1957). New distributional records extend the range of this species to southern Amazonian Peru. In most respects reproductive behaviour of A. craspedopus is similar to that of other phyllomedusine frogs. In southern Peru clutches were suspended above water-filled hollow cavities in logs, but in Ecuador tadpoles were found in a pool on the ground with no directlyoverhanging vegetation. Agalychnis craspedopus lays small clutches (mean = 17 eggs) with large eggs. Breeding possibly takes place throughout some years in southern Peru, but this undoubtedly varies depending on rainfall. Some aspects of reproductive biology, and tadpole...
Tipo: Article / Letter to the editor
Palavras-chave: Amphibia; Anura; Hylidae; Phyllomedusine; Agalychnis craspedopus; Life history; Distribution; Amazonian lowlands; Neotropics; 42.82.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/318246

Addresses of herbaria in Malesia
Provedor de dados: 16
Autores: Veldkamp, J.F.
As the new Index Herbariorum Part I: The herbaria of the world, ed. 8 (1990) will not be available to many readers in the Malesian area, an excerpt of the Institutes presented there plus some not included is given here. I have taken Malesia in a somewhat broader sense than usual and have included the Andamans and Solomons. I have noticed that especially telephone and fax numbers have changed in several instances, so check yours! Please notify me of any errors, omissions, or changes. — J.F. Veldkamp.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/533099

Histologie comparée des fosses nasales de quelques Tortues marines (Dermochelys coriacea et Chelonia mydas) et d’eaux douces (Emys orbicularis et Pseudemys scripta) (Reptilia, Dermochelyidae, Cheloniidae, Emydidae)
Provedor de dados: 16
Autores: Saint-Girons, H.
Comparative histological studies carried out on the nasal cavity of four species of turtles showed that the sea turtles have a more or less regressed olfactive epithelium compared to that of the Emydidae but that their vomeronasal epithelium is more developed. The location of the vomeronasal epithelium in the cavum also differs. The data suggest that the Dermochelyidae were adapted to a strict aquatic life a long time before the Cheloniidae.
Tipo: Article / Letter to the editor
Palavras-chave: Testudines; Nasal cavities; Sensory epithelium; Histology.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/504031

Streeplijsten
Provedor de dados: 16
Autores: NN.
Er zijn nieuwe veld-praktische streeplijsten gemaakt. Te verkrijgen zijn nu — een totaallijst met Wetenschappelijke of Nederlandse namen — een AA-lijst (A4 formaat) — een lijst voor losse waarnemingen Op de lijsten staat duidelijk vermeld voor welk doel ze te gebruiken zijn en hoe ze ingevuld dienen te worden. Ze zijn aan te vragen via uw district-coördinator of via het Rijksherbarium: (071) 273533.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/526950

The tuberous epiphytes of the Rubiaceae 2: The new genus Anthorrhiza
Provedor de dados: 16
Autores: Huxley, C.R.; Jebb, M.H.P.
Anthorrhiza Huxley &amp; Jebb, Psychotrieae-Hydnophytinae, is described. The eight species, all of which are new to science and endemic to Papua New Guinea, are fully described, and a key to the species and an enumeration of specimens are given.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525121

Taxonomy, phylogeny and biogeography of the marine sponge genus Acarnus (Porifera: Poecilosclerida)
Provedor de dados: 16
Autores: Soest, R.W.M. van; Hooper, J.N.A.; Hiemstra, F.
Cosmotropical species reported in the genus Acarnus, viz. A. innominatus Gray (1867), A. tortilis Topsent (1892) and A. souriei Levi (1952), are demonstrated to show small, but consistent interregional morphological differences, leading to the conclusion that these “species” are very probably complexes of closely related species derived from former widespread (Tethyan and/or Gondwanan) ancestors. On the basis of this analysis, six regional Acarnus forms are described as new species, viz. A. claudei n.sp. from South East Africa (formerly described as A. innominatus by Lévi, 1963), A. hoshinoi n.sp. from NW Australia (formerly described as A. innominatus by Hooper, 1986) A. deweerdtae n.sp. from the West Indian region (newly discovered material related to A....
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/504942

Petrology of a dolerite in Netherlands offshore well G/17-2
Provedor de dados: 16
Autores: Kuijper, R.P.
A dolerite intrusion in Upper Carboniferous sediments in Netherlands offshore block G/17 is described. Based on electron microprobe analyses of clinopyroxene and olivine, a minimum temperature of emplacement of some 1000°C is calculated. As a result of the intrusion, the maturation profile of the surrounding sediments may show a departure from linear behaviour.
Tipo: Article / Letter to the editor
Palavras-chave: 38.26.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/317491

Taxonomy of Fordia hemsley (Papilionaceae: Millettieae)
Provedor de dados: 16
Autores: Dasuki, U.A.; Schot, Anne M.
The genera Fordia Hemsley and Imbralyx Geesink are united under Fordia for reasons exemplified by Schot (Blumea 36, 1991, 205-234, this issue). Fordia (s.s.) was earlier revised by Buijsen (1988). Imbralyx was revised by Dasuki (unpublished ms.). A formal treatment of the necessary combinations is presented below.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525321

The genera Mitchella and Damnacanthus. Evidence for their close alliance; comments on the campylotropy in the Rubiaceae and the circumscription of the Morindeae
Provedor de dados: 16
Autores: Robbrecht, E.; Puff, C.; Igersheim, A.
The two species of Mitchella (Southeast Asian and North American) and several species of the Southeast Asian genus Damnacanthus are investigated. Vegetative character states (growth form, branching pattern, leaves) of the two genera are described and compared. Damnacanthus always exhibits heterophylly and some species have paired thorns. The latter are interpreted as paired lateral shoots in the proximal part of a sympodial branch unit, and it is speculated that the paired thorns may be modified inflorescence shoots. Detailed information is also given on inflorescence structure and floral morphological and anatomical details of Damnacanthus and Mitchella. Particular emphasis is placed on the ovaries, the structure of which is remarkably similar in the two...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525774

Didiscus verdensis spec. nov. (Porifera: Halichondrida) from the Cape Verde Islands, with a revision and phylogenetic classification of the genus Didiscus
Provedor de dados: 16
Autores: Hiemstra, F.; Soest, R.W.M. van.
A new species of the circumtropical/subtropical genus Didiscus Dendy, 1922 is described from the Cape Verde Islands. Based on a phylogenetic analysis of all known species of the genus, using morphological and microscopical (including SEM) characters, it was demonstrated that the new species is closest to the eastern Mediterranean D. styliferus Tsurnamal, 1968.
Tipo: Article / Letter to the editor
Palavras-chave: Porifera; Halichondrida; Didiscus; Cape Verde Islands; 42.72.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/319106

Over het Nederlandse verspreidingspatroon van Rorippa nasturtiumaquaticum (L.) Hayek
Provedor de dados: 16
Autores: NN.
Some aspects of the occurrence of Rorippa nasturtium-aquaticum (= Nasturtium officinale) in the Netherlands are discussed, and a request is made for herbal specimens from outside the main distribution areas, viz. the south of Limburg and the freshwater tidal region.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527249

Ubiquinones in selected species of Penicillium and related Teleomorph genera
Provedor de dados: 16
Autores: Schubert, M.; Kreisel, H.
The ubiquinone type of 38 species (41 strains) of Penicillium sensu lato and related teleomorphic genera ( Eupenicillium, Talaromyces, Thermoascus) was determined by RPPC or RPHPLC. In eight of the ten sections of Penicillium ubiquinone Q-9 was found as the main type. In sect. Geosmithia Q-10 and traces of Q-9 were demonstrated. In sect. Biverticillium (= sect. Simplicium) and its teleomorph Talaromyces Q-10(H2) was demonstrated; in one species an additional unidentified ubiquinone was found. Thermoascus has ubiquinone Q-9. The results and those of earlier authors support the idea that the genus Penicillium in the actually accepted broad concept is heterogeneous.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/532238

Boekaankondigingen
Provedor de dados: 16
Autores: Meijden, R. van der.
P. Aanen, W. Alberts, G.J. Bekker, H.D. van Bohemen, P.J.M. Meiman, J. van der Sluijs, G. Veenbaas, H.J. Verkaar &amp; C.F. van de Wetering, Natuurtechniek en Waterstaatswerken, Wetenschappelijke Mededeling KNNV nr. 199, 1990, 143 pag., ISBN 90-5011-044-4, ƒ 26,50, te bestellen via gironummer 13028 t.n.v. Stichting Uitgeverij KNNV, Eindhoven. * Achtergrondreeks Natuurbeleidsplan, 2: Grondwaterstromingsstelsels in Nederland (zie G.B. Engelen); 3: Levend verleden (zie A.J. Haartsen); 4: Toestand van de natuur (zie J.A. Weinreich); 5: Nederland in vorm (zie G.P. Gonggrijp); 6: Natuurontwikkeling (zie F. Baerselman); 7: Natuurwaardenkaart (zie J.J. Bakker).
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527099

The Cricetidae (Mammalia, Rodentia) from the late Miocene of Crevillente (Prov. Alicante, Spain)
Provedor de dados: 16
Autores: Freudenthal, M.; Lacomba, J.I.; Suárez, E.M.
The Cricetidae from various new localities in the area of Crevillente are described, and compared with the material published by de Bruijn et al. (1975). Among the material there are two new species: Neocricetodon plinii and N. lucentensis.
Tipo: Article / Letter to the editor
Palavras-chave: 38.22.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/317517

Stemonaceae and Pentastemonaceae; with miscellaneous notes on members of both families
Provedor de dados: 16
Autores: Duyfjes, Brigitta E.E.
With field observations in situ, and extended study of recently collected copious FAA-conserved material of Pentastemona sumatrana, it became evident that Pentastemona represents a family of its own, Pentastemonaceae, beside Stemonaceae. The discriminating characters are discussed and additional notes on the growth habit, inflorescences, and flowers of Pentastemona, which appear possibly to be polygamous, are given. For the genus Stemona two new combinations are proposed, and some notes on cultivated living plants are presented.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/524689

Aanvullingen en wijzigingen in de Standaardlijst van de Nederlandse korstmossen
Provedor de dados: 16
Autores: Aptroot, A.; Boom, P. van den; Spier, L.
Soon after the publication of the Dutch Lichen Checklist in 1988 several changes and additions are presented, including 18 species new to the Dutch lichen flora.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527303

Remarks on the tropical Asian and Australian taxa included in Diplospora or Tricalysia (Rubiaceae — Ixoroideae — Gardenieae)
Provedor de dados: 16
Autores: Ali, S.J.; Robbrecht, E.
The Asian and Australian species generally included in Diplospora or Tricalysia are shown to form an artificial assemblage. A few species even do not belong to the Gardenieae-Diplosporinae and need to be transferred to other tribes of the Ixoroideae. So Diplospora malaccensis, Diplospora minahassae, Tricalysia purpurea, and Tricalysia sorsogonensis belong to the Hypobathreae. The three Australian Diplosporas are members of the Pavetteae and are transferred to Tarenna. A survey is given of the characters of the remaining Asian species of Diplospora/Tricalysia, demonstrating that 1) these species cannot be accommodated under the African genus Tricalysia, and 2) Discospermum, since a century included in the synonymy of Diplospora, merits to be revived at...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/524464

A contribution to the knowledge of the pectinacean Mollusca (Bivalvia: Propeamussiidae, Entoliidae, Pectinidae) from the Indonesian Archipelago
Provedor de dados: 16
Autores: Dijkstra, H.H.
During the Indonesian-Dutch SNELLIUS -II Expedition (1984-1985) to the Indonesian Archipelago 46 pectinacean species were collected from the Flores Sea and Banda Sea (5°52'-9°57'S, 118°12'-123°58'E) at littoral to bathyal depth (835 m). One new pectinid genus, viz. Glorichlamys gen. nov., six new propeamussiids, viz. Parvamussium araneum spec. nov., Parvamussium carbaseum spec. nov., Parvamussium cassium spec. nov., Parvamussium undosum spec. nov., Parvamussium virgatum spec. nov., Cyclopecten cancellus spec. nov., and one new entoliid, viz. Pectinella aequoris spec. nov. are described. Twelve new records of Pectinacea for this region are mentioned. For Ostrea squamosa Gmelin, 1791 a lectotype is designated. In addition Pectinidae of the...
Tipo: Article / Letter to the editor
Palavras-chave: Mollusca; Bivalvia; Propeamussiidae; Entoliidae; Pectinidae; Taxonomy; Indonesia.; 42.73.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/317854

Two species of Upogebia from Tokushima, Japan, with a description of a new species, Upogebia trispinosa (Crustacea: Decapoda: Thalassinidea)
Provedor de dados: 16
Autores: Sakai, K.; Mukai, H.
Upogebia trispinosa spec. nov. is described from Tokushima, Japan. The species is rather closely related to U. narutensis.
Tipo: Article / Letter to the editor
Palavras-chave: Crustacea; Decapoda; Upogebiidae; Upogebia; Description; Distribution; Japan; Tohoku; Shikoku; Ryuku Islands; 42.74.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/318308

Review
Provedor de dados: 16
Autores: Leenhouts, P.W.
This flora covers part of the Great Indian or Thar Desert, viz. the Districts of Jodhpur, Barmer, and Jaisalmer in Rajasthan State, an area of some 25,000 sq. km. It is an inhospitable region mainly of sand dunes at about 100 m above sea level. The indigenous flora of this region includes 619 species of Seedplants (78 families, 315 genera). The flora proper is preceded by a short introduction mainly on the climate, soil, and vegetation. The flora gives keys to the families, genera, and species. The names of the families are given without any citation; of the genera only the nomenclaturally relevant literature has been cited. The citation of the species is more complete and includes the nomenclaturally relevant and the main Indian literature and synonyms,...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525838

Asplenium septentrionale (L.) Hoffm. in Zwolle: weer een nieuwe streepvaren voor Nederland
Provedor de dados: 16
Autores: Knotters, Coen; Bremer, Piet.
Asplenium septentrionale is a small evergreen fern, normally growing on siliceous rocks and restricted to Central Europe and the United Kingdom. In 1990 it was discovered on a brick wall along the Willemsvaart in Zwolle. One individual of the fern appeared to thrive between the brick at the upper side of a lock wall. The nearest localities are situated in Belgium.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/526646

Het Weidehavikskruid (Hieracium caespitosum Dumortier) in de IJsselmeerpolders en aangrenzende gebieden
Provedor de dados: 16
Autores: Bremer, P.
Hieracium caespitosum appeared very soon (1948) after the reclamation (1942) of the IJsselmeerpolders. The species mainly flowers in June and it takes approximately thirteen days between fertilization and riping of the achenes; therefore, to enable proper dispersal, mowing of the populations should take place in the second half of June. The species is facultative apogamous and is frequently visited by insects, mainly Muscidae en Syrphidae. From the ecological point of view Hieracium caespitosum has been regarded to be a characteristic for Molinion-vegetations. However, on soils which are humous and lutum-rich, the species shows a preference for Arrhenatherion-vegetations; on poor soils it is part of vegetations that are related to the Thero-Airion. In fact...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527751

Hemiasterella aristoteliana n. sp. (Porifera, Hadromerida) from the Aegean Sea with a discussion on the family Hemiasterellidae
Provedor de dados: 16
Autores: Voultsiadou-Koukoura, Eleni; Soest, R.W.M. van.
A representative of the genus Hemiasterella Carter, 1879 was found for the first time in the Mediterranean Sea during sampling in the shallow waters of the northern Aegean Sea. The new species, H. aristoteliana, is compared with Atlantic Hemiasterella elongata Topsent, 1928. The status of the family Hemiasterellidae is discussed.
Tipo: Article / Letter to the editor
Palavras-chave: Taxonomy; Hemiasterella; Hadromerida; Mediterranean.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/504475

Lower Palaeozoic erratic favositids from the Island of Sylt, Germany
Provedor de dados: 16
Autores: Stel, J.H.
Twelve species of favositids are described. They are derived from silicified boulders found in Pliocene (?) deposits of the Island of Sylt, Germany. Paleofavosites is the dominant genus in this material. Two new species are described, viz. Paleofavosites oekentorpi and Favosites schuddebeursi.
Tipo: Article / Letter to the editor
Palavras-chave: 38.20.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/317528

Reviews
Provedor de dados: 16
Autores: NN.
ANDREWS, S.B. 1990. Ferns of Queensland. (Contributions by L. Pedley). xx, 427 pp, illus. Queensland Department of Primary Industries Information Series Q 189008, Brisbane. ISBN 0-7242-3224-9. Au$ 52.50 (incl. surface mailing). This book has had a long and obviously difficult history. Work on it was started, according to the Foreword, in 1973, by S.B. Andrews. Publication of the manuscript was then held up for some 10 years, and the manuscript had to be updated by a second author, L. Pedley. The foreword explaining all this is dated 1988, and the title page 1990.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/533150

Reexamination of the holotype of Pseuderythrinus rosapinnis Hoedeman, 1950, a synonym of Hoplerythrinus unitaeniatus Agassiz, 1829 (Pisces, Characiformes, Erythrinidae)
Provedor de dados: 16
Autores: Jongh, Bas O. de.
The holotype and only known specimen of Pseuderythrinus rosapinnis Hoedeman, 1950 from Surinam is reexamined for the dentition of its palatal arch. Its morphometric and meristic data are compared with four species of erythrinids from the Guianas. Pseuderythrinus rosapinnis turns out to be a synonym of Hoplerythrinus unitaeniatus.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/505324

A new species of Nepenthes (Nepenthaceae) from Sarawak
Provedor de dados: 16
Autores: Adam, Jumaat Haji; Wilcock, C.C.
A new species of Nepenthes, Nepenthes faizaliana Adam &amp; Wilcock, is described from Batu Panjang (Gunung Mulu National Park) in Sarawak.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525153

Eerbied voor natuur, welke natuur?
Provedor de dados: 16
Autores: Zonneveld, I.S.
Als wij vroeger aan tafel kenbaar maakten dat we iets niet lustten, zei mijn moeder steevast: “Je eet het maar op, het is goed voor je, het is allemaal van de natuur.” Als wij tegenwierpen dat cyaankali ook van de natuur was, werd dat afgedaan als niet terzake doende muggenzifterij. Blijkbaar was Natuur – in het gedachtenpatroon van mijn moeder, een op de overgang van de negentiende naar de twintigste eeuw welopgevoede vrouw – goed voor je, met name als basis voor je bestaan: ‘Natuurlijke hulpbron’. Haar oudere zuster, mijn tante Anna, maakte echter duidelijk dat het onjuist was als wij op zondag, in plaats van ter kerke te gaan, liever de natuur in gingen omdat wij stelden dat je daar, in bijvoorbeeld de ‘gouden zalen van het beukenbos in de herfst’ die...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527061

Wild, verwilderd of aangeplant?
Provedor de dados: 16
Autores: Barendregt, Huibert.
Zoals bij de uiteenzetting over de streeplijst al naar voren is gekomen, wordt bij de FLORON-inventarisatie gekeken naar de wilde planten in Nederland. In het Nederlandse landschap is door het sterke ingrijpen van de mens in de natuur het bepalen van de ‘wildheid’ van planten echter vaak een probleem. In principe wordt een plant wild genoemd als zij de ingenomen groeiplaats op eigen kracht heeft bereikt èn zich in dat milieu kan handhaven. Naast de planten die zich letterlijk op eigen kracht verplaatsen, zoals Springzaad, worden hierbij doorgaans ook de planten inbegrepen die zich verspreiden met natuurlijke middelen zoals wind, water, insekten, vogels en zoogdieren. Hierbij moet wel worden aangetekend dat het hier alleen gaat over wilde planten op...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/526638

Notes on Octocorallia from the Laccadives (SW India)
Provedor de dados: 16
Autores: Ofwegen, L.P. van; Vennam, J.E.
New records for the Laccadives are given and one new species is described and figured: Sinularia abhishiktae.
Tipo: Article / Letter to the editor
Palavras-chave: Octocorallia; Gorgonacea; Alcyonacea; New species; New records; Laccadives; Indian Ocean; 42.72.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/318729

Notes on Caribbean Phymatidae (Hemiptera: Heteroptera)
Provedor de dados: 16
Autores: Kormilev, N.A.; Doesburg, P.H. van.
New descriptive and distributional data are presented for Ambush bugs from the Dominican Republic: Phymatocoris iviei gen. nov., spec. nov. and Lophoscutus hispaniolensis spec. nov. New records are given for Phymata interjecta Dudich, 1922, Lophoscutus confusus Kormilev, 1989, and L. ypsilon Kormilev, 1990. Keys are given for the American genera of Macrocephalinae, and for the Caribbean species of the genus Lophoscutus.
Tipo: Article / Letter to the editor
Palavras-chave: Hemiptera; Phymatidae; Macrocephalinae; Taxonomy; Keys; Carribbean; Lophoscutus; Phymatocoris; 42.75.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/319330

The tuberous epiphytes of the Rubiaceae 4: A revision of Squamellaria
Provedor de dados: 16
Autores: Jebb, M.H.P.
Squamellaria Becc. is revised to include three species, one of which new, and one existing species is reduced. The genus is endemic to Fiji.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/524557

Enige vondsten van Callitriche obtusangula Le Gall (Stomphoekig sterrekroos), vooral in Oost- en Zuid-Nederland
Provedor de dados: 16
Autores: Dool, Emma van den; Bruinsma, John.
New records are presented from the pleistocene parts of the Netherlands, in which it was formerly scarce, as well as from adjacent Belgium and Germany. The plants grow in canals and slowly streaming brooks, in nutrient rich, neutral to calcareous water. A few records are made in seepage situation.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/526545

Gloeocarpus Radlk. (Sapindaceae) revised
Provedor de dados: 16
Autores: Welzen, P.C. van.
In this article a short discussion is given about the position of the genus Gloeocarpus Radlk. (Sapindaceae) within the Cupanieae, as well as a description of the genus and its species G. patentivalvis (Radlk.) Radlk.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525949

De FLORON-werkweek te Ees, Drenthe, 20—27 juli 1990
Provedor de dados: 16
Autores: Weeda, Eddy.
Eind juli 1990 werd een FLORON-werkweek gehouden met als standplaats ‘Het Land van Bartje’ te Ees, gem. Borger. 28 mensen namen deel aan de gehele werkweek, nog eens 4 waren de helft van de week aanwezig. Op dezelfde manier als in het voorgaande jaar¹ werd geïnventariseerd in groepjes van drie of vier, waarbij per groep per dag één tot twee kilometerblokken werden bekeken. Het onderzochte gebied strekte zich uit van Grolloo en Schoonloo in het westen tot Nieuw-Buinen en Valthermond in het oosten. In floristisch opzicht werd het meest verwacht van het veenkoloniale deel van Oost-Drenthe, waar dan ook de eerste twee werkdagen werden doorgebracht. Landschappelijk spreekt dit gebied echter weinig tot de verbeelding, en de plantenrijkdom was evenmin...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/526500

A taxonomic revision of the Asiatic genus Pentasacme (Asclepiadaceae)
Provedor de dados: 16
Autores: Rahman, M.A.; Wilcock, C.C.
A complete revision of the Asiatic genus Pentasacme Wall. ex Wight is given with a key to the four species. The distribution, ecology, and comparative morphology of the genus are discussed and the variation in diagnostic features within the genus is shown by illustration. Two sections are recognized in the genus, one of which is new, and one species is reduced to synonymy.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525776

On the identity of ‘Columbella rustica’ from West Africa and the Macaronesian islands
Provedor de dados: 16
Autores: Moolenbeek, R.G.; Hoenselaar, H.J.
Difference in protoconch structure is the reason to consider Columbella rustica (Linné, 1758) and Columbella adansoni Menke, 1853 as distinct species. C. adansoni is the East Atlantic species with a planktotrophic larval development, restricted to the Macaronesian islands. Columbella rustica is the Mediterranean and West African species with direct development.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/505570

Tectaria group
Provedor de dados: 16
Autores: Holttum, R.E.
Polypodiaceae subfam. Dryopteridoideae section A, auct.: C. Chr. in Verdoorn, Man. Pteridol. (1938) 543, p.p. Aspidiaceae tribe Aspidieae auct.: Ching, Sunyatsenia 5 (1940) 250, excl. Lomariopsis and related genera. — Aspidiaceae, group of Ctenitis Copel., Gen. Fil. (1947) 153. Aspidiaceae auct.: Pichi Sermolli, Webbia 31 (1977) 460—468, p.p. Dennstaedtiaceae subfam. Tectarioideae Holttum, J. Linn. Soc. Bot. 53 (1947) 152; Revis. Fl. Malaya 2 (1955) 494; Studies fern genera I, Fern Gaz. 12 (1984) 313—319; Ibid. VI, Gard. Bull. Sing. 39 (1986) 153—167. Caudex in almost all cases erect or suberect, always with a radially organized dictyostele; scales narrow and rather firm, marginal teeth (if present, except in Cyclopeltis) almost always formed at the...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/532717

Copepods from intertidal interstitial water of Salvador, Brazil. I. Cuipora janaina gen. n., sp. n. &amp; Cyclopina caiala sp. n. (Cyclopoida: Cyclopinidae)
Provedor de dados: 16
Autores: Lotufo, Guilherme Ribeiro; Falavigna da Rocha, Carlos Eduardo.
Cuipora janaina gen. n., sp. n., and Cyclopina caiala sp. n. are described from the interstitial water of a sandy beach in Salvador, Bahia (Brazil). Cuipora is distinguished from all other genera of the subfamily Cyclopininae in having the endopodite of legs 1-4 2-segmented and the terminal segment armed with 4 setae. Cuipora is compared to Erythropolites Huys &amp; Boxshall, 1990, Herbstina Huys &amp; Boxshall, 1990, and Cyclopina Claus, 1862, with which it has most morphological similarities. Cyclopina caiala sp. n. is distinguished by the structure of the leg 5 of the male and female and by a particular combination of characters of the mouthparts. Taxonomical problems involving Cylopina mediterranea Steuer, 1940 are discussed.
Tipo: Article / Letter to the editor
Palavras-chave: Cyclopoida; Crustacea; Taxonomy; New taxa; Interstitial; Brazil.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/504287

A new species of Palaquium Blanco (Sapotaceae) from India
Provedor de dados: 16
Autores: Sasidharan, N.; Vink, W.
A new species of the genus Palaquium, P. ravii Sasidharan &amp; Vink, is described from Kerala State, India.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/524836

Review
Provedor de dados: 16
Autores: Kalkman, C.
The first, long-awaited volume of a series that may become as important in our times as Engler &amp; Prantl’s Pflanzenfamilien have been, if it can be finished within a reasonable time. Authors and especially editors must be congratulated. The authorship of this volume is shared by 29 collaborators: K.U. Kramer and 20 others produced the Pteridophyte families, C.N. Page the Conifers, L.A.S. Johnson &amp; K.L. Wilson the Cycads, and K. Kubitzki the Gnetales. Chapters on Chemosystematics and on Conservation show another 4 authors.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525624

Description of Metacirolana agujae n. sp., and redescription of M. agaricicola Kensley, 1984, from the Caribbean Sea of Colombia (Isopoda: Cirolanidae)
Provedor de dados: 16
Autores: Müller, Hans-Georg.
Metacirolana agaricicola Kensley, 1984 from the Caribbean Sea of Colombia is redescribed, with particular reference to its sexual dimorphism. Metacirolana agujae n. sp., known only from Colombia, is decribed. The interspecific affinities of both species are discussed and notes on their habits are given.
Tipo: Article / Letter to the editor
Palavras-chave: Colombia; Caribbean Sea; Metacirolana agujae n. sp.; Metacirolana agaricicola; Taxonomy.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/504328

The type specimens of Edessa urus Erichson, 1848 (Heteroptera: Pentatomidae)
Provedor de dados: 16
Autores: Doesburg, P.H. van.
The syntype series of Edessa urus Erichson, 1848 is described and a lectotype designated. The name Edessa urotaurus nom. nov. is proposed for Edessa urus Breddin, 1903. Edessa dentata Dallas, 1851, is a junior synonym of Edessa urus Erichson, 1848.
Tipo: Article / Letter to the editor
Palavras-chave: Heteroptera; Pentatomidae; Edessa; 42.75.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/319193

On two species of Archipelothelphusa Bott, 1969 (Crustacea: Decapoda: Brachyura: Sundathelphusidae) from Luzon, Philippines
Provedor de dados: 16
Autores: Ng, P.K.L.
The taxonomic problems concerning freshwater crabs of the genus Archipelothelphusa Bott, 1969 (Gecarcinucoidea: Sundathelphusidae) are discussed. The identity of Para-Bary-thelphusa grapsoides subsp. longipes Balss, 1937, is clarified, and a new species, A. celer spec. nov. is described from Luzon, Philippines.
Tipo: Article / Letter to the editor
Palavras-chave: Crustacea; Decapoda; Brachyura; Gecarcinucoidea; Sundathelphusidae; Archipelothelphusa celer spec. nov.; Semiterrestrial freshwater crabs; Luzon; Philippines; 42.74.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/319044

Privisional key to the genera of Loranthaceae and Viscaceae of the Flora Malesiana region
Provedor de dados: 16
Autores: Barlow, B.A.
Precursor publications by the author are in press or in preparation prior to a treatment of the mistletoe families Loranthaceae and Viscaceae for the Flora Malesiana. The provisional keys to genera set out below is offered as an indication of the genera which are accepted for the region. Comments on the key, and advice on difficulties or inconsistencies will be welcomed by the author. A preliminary specimen identification list includes about 4,000 records, mostly captured from collections in L, and the author can check determinations against this list on request. The most recent comprehensive treatment of Loranthaceae for the region is that by Danser [Bull. Jard. Bot. Buitenzorg. III, 11 (1931) 233-519]. This paper includes within the Loranthaceae the...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/533148

A taxonomic revision of Indonesian Gelidiales (Rhodophyta)
Provedor de dados: 16
Autores: Hatta, A.M.; Prud’homme van Reine, W.F.
In this study 12 taxa are treated, belonging to four different genera of Gelidiales (i.e. Gelidiella, Gelidium, Pterocladia, and Porphyroglossum) as well as one species of Wurdemannia, a genus of unknown affinity. One new species, Gelidium amboniense, and a new forma, Gelidium latifolium forma elongatum, are described. Holotype material of Gelidium bornetii Weber-van Bosse in the Weber-van Bosse collection in Leiden can be synonymized with Gelidiella lubrica (Kützing) Feldmann &amp; Hamel, while the original sample in the herbarium in Copenhagen only contains Gelidium pusillum (Stackhouse) Le Jolis var minusculum Weber-van Bosse. In the key to the genera and species we also include the very similar genus Ceratodictyon Zanardini (= Gelidiopsis Schmitz).
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/526097

Control of bleaching in mushroom coral populations (Scleractinia: Fungiidae) in the Java Sea: stress tolerance and interference by life history strategy
Provedor de dados: 16
Autores: Hoeksema, B.W.
Bleaching was studied in populations of phylogenetically closely related species (n = 21) of mushroom corals (Scleractinia: Fungiidae) around Pari Island (Java Sea) during a period of excessive seawater warming in 1983. The interspecific variation in the proportions of affected individuals was significant. Spatial variation in the degree of bleaching anlong fungiid assemblages depended much on relative species abundances. Mushroom corals In relatively stagnant water of lagoons and on the inner reef flat showed little bleaching. Many of the outer reef mushroom corals at ≤ 9 m depth were affected, but only a few at greater depths (≥15 m). In most affected fungiids, the bleached part was pale (associated with pigment loss) instead of white (assumedly caused...
Tipo: Article / Letter to the editor
Palavras-chave: Mushroom corals; Scleractinia; Fungiidae; Bleaching; Java Sea; Pari Island; 42.79.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/227741

A new species of Ammothella (Pycnogonida: Ammotheidae) from deep water off San Nicolas Island, California
Provedor de dados: 16
Autores: Dojiri, Masahiro; Cadien, Donald B.; Phillips, Charles A.
Ammothella killix n. sp. is described from upper bathyal depths on the Cortez Ridge; it is the tenth in the genus from the eastern Pacific, and sixth from California. It differs from its congeners most noticeably in having chelifore fusion, and in bearing slender spiny tubercles on all of the following parts: the chelifore scapes, ocular tubercle, abdomen, lateral processes, first coxae, mid-dorsal surface, and anterior cephalic corners. A key to the species of adult Ammothella from California waters is included.
Tipo: Article / Letter to the editor
Palavras-chave: Pycnogonida; Ammotheidae; Ammothella; San Nicolas Island; Channel Islands; Southern California.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/504181

Scottotympana, a new Cicad genus from New Guinea, with the description of three new species, their taxonomy and biogeography (Homoptera, Tibicinidae)
Provedor de dados: 16
Autores: Boer, A.J. de.
The genus Scottotympana is erected for three species: S. biardae n. sp. and S. sahebdivanii n. sp. from northern New Guinea and S. huibregtsae n. sp. from North-East New Guinea and New Britain. The genus belongs to a complex of genera grouped around Baeturia Stål and is most closely related to the genera Gymnotympana Stål and Venustria Coding &amp; Froggatt of this complex. A key to the males and a map of distribution are presented. The distribution of the genus suggests an Outer Melanesian Arc pattern.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/504684

Reviews
Provedor de dados: 16
Autores: Leenhouts, P.W.
A fine book on the vegetation of Cuba in its relation to climate and soil, its phytogeographic position and subdivision. This culminates into a vegetation map 1:1,250,000, an extensive survey of plant communities, and a ‘phytosociologic table of Cuban woody communities’ where the phytosociologic and phytogeographic position of some 2,500 species, alphabetically arranged, are given. The book is profusely illustrated with hundreds of schemes, maps, vegetation transects, climate diagrams, and photos some of which in colour. It is a pity that some of the black and white photos, which are doubtless reproduced from colour slides, are too black and poor in contrasts. Hardly any tropical country has such a detailed vegetation study and the country as well as the...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/524988

Miscellaneous
Provedor de dados: 16
Autores: NN.
BAAS, PIETER (28 April 1944, Wieringermeer, The Netherlands – *) Dr. Baas was appointed retroactive to 1 January 1991 as Professor of Systematics and Scientific Director of the Rijksherbarium (L) and Hortus Botanicus after the retirement of Dr. C. Kalkman. Although he is an anatomist, he has a keen interest in the Flora Malesiana and intends to lead its progress vigorously. Dr. T. DEROIN (P) appointed in October 1989 as ‘Maître de Conférences’ is in charge of the Asiatic Department for loans and exchanges in P (Paris).
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/533323

New Oxytorinae from Siberia, with revised keys to Plectiscidea Viereck and Eusterinx Forster s.l. (Hymenoptera: Ichneumonidae)
Provedor de dados: 16
Autores: Rossem, G. van.
A revised key to the females of the Palaearctic species of the genus Plectiscidea Viereck, 1914 (Hymenoptera: Ichneumonidae; Oxytorinae) is given. Two new species from Siberia are described: Plectiscidea (Plectiscidea) obscura and P. (P.) spuria. Of P. (P.) subteres (Thomson, 1888) and P. (P.) melanocera (Forster, 1871) a new survey of characters is given. The holotype of Aniseres lubricus Förster, 1871 was re-examined and it is ascertained that it represents a species of Pantisarthrus Förster, 1871. One new species of the genus Aniseres Förster, 1871, is described, A. paradoxus spec, nov., and two new species of the genus Eusterinx Förster: E. (? Holomeristus) similis and E. (? Holomeristus) truculenta. A revised key to the females of the Palaearctic...
Tipo: Article / Letter to the editor
Palavras-chave: Ichneumonidae; Oxytorinae; Palaearctic; Siberia; Keys; Plectiscidea; Pantisarthrus; Aniseres; Eusterinx; 42.75.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/318373

The marine and continental upper Miocene of Crevillente (Alicante, Spain)
Provedor de dados: 16
Autores: Freudenthal, M.; Lacomba, J.I.; Suárez, E.M.; Peña, J.A.
Two sections of Upper Miocene sediments in the area of Crevillente are described, and a correlation table of the micromammal-bearing localities in the area is given.
Tipo: Article / Letter to the editor
Palavras-chave: 38.16.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/317471

The PROSEA project (Plant Resources of Southeast Asia)
Provedor de dados: 16
Autores: Jansen, P.C.M.
PROSEA publishes its own newsletter which originally was published in Wageningen, the Netherlands, but from April 1991 is edited by J. Kartasubrata and N. Wulijarni-Soetjipto, Herbarium Bogoriense, POB 234, Bogor 16122, Indonesia. From December 10-12, 1990, the Multilateral Steering Committee held its third meeting in Manila. The Committee has been dissolved and has been replaced by a Board of trustees, in which all members will be represented.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/533429

Standaardlijst van de Nederlandse flora 1990
Provedor de dados: 16
Autores: NN.
The List is the fourth edition in a series which started in 1971.¹²³ It is based on ed. 21 of the Flora van Nederland. 6 The criteria for inclusion of a taxon in the List (§ 2) are: all taxa are well recognizable, and: all ‘wild’ taxa are included. For practical reasons the year 1825 is chosen as the starting point for 'indigenous' taxa. Special criteria are defined for species appearing after 1825. The meaning of the Standard List number (§ 3) is explained with some examples. All taxa included have a code for their frequency (UFK; see § 4 – first number: estimated frequency in 1940, second number: estimated frequency in 1990), two codes for the ‘ecological group’ (§ 5), and (facultative) a code for the Red Data List category (§ 6). The total number of...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527745

Early Phanerozoic trace fossils from the Sierra Albarrana quartzites (Ossa-Morena Zone, Southwest Spain)
Provedor de dados: 16
Autores: Marcos, A.; Azor, A.; González, F.; Simancas, F.
Three ichnogenera are described from a 50 to 500 m thick shallow-water sandstone-shale sequence (Sierra Albarrana Quartzites). The ichnofauna consists of the burrows of worm-like animals (Arenicolites, Monocraterion, and Skolithos). The age of this formation, previously considered to be Precambrian or Palaeozoic, has been the subject of discussions. We may now assign it an Early Phanerozoic age, in agreement with the known stratigraphic distribution of the ichnofossils found.
Tipo: Article / Letter to the editor
Palavras-chave: 38.20.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/317447

The eye-catching cicada Hamza ciliaris (Linnaeus, 1758) comb. n. in Indonesia and the Pacific: taxonomie status, synonymy, and distribution (Homoptera, Cicadoidea)
Provedor de dados: 16
Autores: Duffels, J.P.
The new combination Hamza ciliaris (Linnaeus) is proposed for a cicada species widely distributed in Maluku ( = Moluccas), Timor, Banda, Kei and Banggai Islands, the Philippines, and the Palau group of the Caroline Islands. The synonymy of five species, treated in the literature as junior synonyms of Platypleura ciliaris, is confirmed and three other species are synonymized with Hamza ciliaris for the first time: Hamza bouruensis (Distant), H. uchiyamae Matsumura, and Platypleura lyricen Kirkaldy. The redescription of Hamza ciliaris is followed by discussions on its distribution, habitat, and taxonomie position. The current classification of the genus Hamza in the separate tribe Hamzini is questioned by the results of this study. Some remarks are made on...
Tipo: Article / Letter to the editor
Palavras-chave: Hamza ciliaris; Cicadoidea; Taxonomy; Distribution; Indonesia; Pacific.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/503896

Revision of the genus Trispinaria Quicke (Hymenoptera: Braconidae)
Provedor de dados: 16
Autores: Achterberg, C. van.
The genus Trispinaria Quicke, 1986 (Hymenoptera: Braconidae: Braconinae) has been revised and six new species are described. The type-species is fully illustrated, and redescribed. A key to the species is added; the phylogeny, biogeography and distribution are discussed.
Tipo: Article / Letter to the editor
Palavras-chave: Braconidae; Braconinae; Trispinaria; Sulawesi; Oriental; Key; Distribution; Phylogeny; Biogeography; 42.75.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/318465

Annotated checklist of the herpetofauna of Petit Saut, Sinnamary River, French Guiana
Provedor de dados: 16
Autores: Hoogmoed, M.S.; Avila-Pires, T.C.S.
The Mission Radeau des Cimes to Petit Saut, French Guiana, offered the opportunity to study the herpetofauna of the canopy of the tropical rainforest, an area hardly studied sofar. Two localities at heights of 30 and 35 m could be studied, whereas data on a third site were obtained through information from other participants. The herpetological results of the research in the canopy were meagre. Only the frog Hyla leucophyllata (Beireis) and the lizard Mabuya bistriata (Spix) were observed in the canopy. Additionally the terrestrial herpetofauna was studied extensively and turned out to contain some species that had not been reported before from French Guiana. Also, for many species new distribution data within French Guiana were obtained. Le Mission Radeau...
Tipo: Article / Letter to the editor
Palavras-chave: Reptilia; Amphibia; Tropical rainforest; Canopy; Forest floor; Neotropics; French Guiana; 42.82.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/318446

Revision of the genus Castillomys (Muridae, Rodentia)
Provedor de dados: 16
Autores: Martín Suárez, E.; Mein, P.
In this paper a revision of the genus Castillomys Michaux, 1969 is given. Previously described subspecies are elevated to species rank, and a new species, Castillomys rivas, is proposed. Several populations from Italy and Turkey are transferred to the genus Centralomys de Giuli, 1989. For a population from Maritsa the new subgenus Rhodomys is created within the genus Occitanomys.
Tipo: Article / Letter to the editor
Palavras-chave: 38.22.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/317450

Gammaridea and Caprellidea (Crustacea — Amphipoda) of the Portuguese south-western continental shelf: taxonomy and distributional ecology
Provedor de dados: 16
Autores: Marques, João Carlos; Bellan-Santini, Denise.
Amphipods from the Portuguese south and south-western continental shelf were studied with regard to the species inventory, distribution, and ecology. This study allowed the identification of 113 species, belonging to 52 genera; of these species 28 are recorded for the first time along the Portuguese coast. Two species, Ampelisca heterodactyla Schellenberg, 1925, and A. latifrons Schellenberg, 1925, are redescribed. The latter is different from the Ampelisca named latifrons by Ledoyer in 1972 and 1982. The absolute frequencies and abundances of the species, and their distribution in terms of bathymetry and type of substrate are also analysed. The most frequent and abundant species also presented wide ranges of vertical distribution. In addition, these...
Tipo: Article / Letter to the editor
Palavras-chave: Gammaridea; Caprellidea; Taxonomy; Distribution; Ecology; Portugal.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/504578

Review
Provedor de dados: 16
Autores: Leenhouts, P.W.
This dictionary covers systematics, morphology, and anatomy of the Plant Kingdom, including also Fungi and Fossils. Not included are cytology, genetics, and evolution, which have been or will be treated in other volumes of the same series. As to systematics, families and higher taxa as well as many for some reason important genera have been treated. The families are taken in a broad sense. Liliaceae, to give an example, include some 25 families as accepted by many present-day botanists (Agavaceae, Alliaceae, etc.). These family names are included too, with a cross reference to the Liliaceae. (However, Agavaceae as well as Agave are only provided with a cross reference to the Amaryllidaceae; with neither of the two, nor with the Amaryllidaceae, the...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525261

Expeditions and other fieldwork
Provedor de dados: 16
Autores: NN.
A report has been published that Vanda hookeriana was found again outside Gopeng, ca. 20 km from Ipoh, Perak. The species was abundant at the end of the 19th century, but mining operations have destroyed most of its natural habitat. It grows in swampy ground by clinging onto Crinum asiaticum leaves. (OSSEA Bull. 6/6,1988; Hawaii Orch. J. 17/4, 1988, 7.)
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/533308

Bibliography
Provedor de dados: 16
Autores: Veldkamp, J.F.
AKIYAMA, H. 1990. Taxonomic studies of mosses of Seram and Ambon (Moluccas, East Indonesia) collected by Indonesian-Japanese Botanical Expeditions II. J. Fac. Sc., Univ. Tokyo, III, 14: 385-413, illus.—Dicranaceae (14 genera, 25 species), Calomniaceae (1/1), Daltoniaceae (1/1); 3 new species. AKIYAMA, H. 1990. Taxonomic studies of mosses of Seram and Ambon (Moluccas, East Malesia) collected by Indonesian-Japanese Botanical Expedition. III. Acta Phytotax. Geobot. 41: 129-142, illus. — Rhizogoniaceae (4 genera/6 species.), Racopilaceae (2/4,1 new), Pterobryaceae (6/8), Trachylomataceae (1/1), Garovagliaceae (1/8).
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/533490

Contribution to the study of the genus Helicopsyche (Trichoptera) from Cuba, Hispaniola, and Puerto Rico
Provedor de dados: 16
Autores: Botosaneanu, L.; Flint, O.S.
Seven new species and one new subspecies of Helicopsyche von Sieboid are described from Cuba, Hispaniola, and Puerto Rico based on adults; additionally four species and one subspecies belonging to the fauna of these islands are redescribed. Both sexes are described when correct association of females is possible. Considerations are made on the value of different characters in discriminating species in this genus. Presently 10 taxa are known from Cuba, 5 from Hispaniola, 4 from Puerto Rico (and 3 from Jamaica). An attempt is made to establish the affinities of these species. The West Indian Helicopsyche represent one of the richest assemblages of this genus in the world fauna.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/505523

Crenicichla tigrina, Une nouvelle espèce de cichlidae (Pisces, Perciformes) du Rio Trombetas, Pará, Brésil
Provedor de dados: 16
Autores: Ploeg, Alex; Jégu, Michael; Ferreira, Efrem.
Une nouvelle espèce de Cichlidae, Crenicichla tigrina, est décrite et illustrée. La coloration sur le vivant et quelques remarques relatives à l’Pecologie de cette espèce sont présentée. Les relations de C. tigrina avec les autres espèces de Crenicichla à petites écailles et le mode de distribution de ces espèces sont discutés. Le biotope de C. tigrina est définit par l’étude de la fauna associée. Le mode de distribution est comparé avec celui d’autres taxa chez les poissons.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/505573

On Cyprian Helicellinae (Mollusca: Gastropoda Pulmonata: Helicidae), making a new start
Provedor de dados: 16
Autores: Gittenberger, E.
Our fragmentary knowledge concerning the Cyprian Helicellinae is revised and summarized, while new data are added. "Helicella (Xerotricha) conspurcata distinguenda" Haas, 1936, is a Helicopsis species that has to be called H. cypriola (Westerlund, 1889) as a consequence of the selection of a neotype for Westerlund's poorly described nominal taxon. "Helicella (Xerotricha) conspurcata arrouxi" sensu Haas, 1934 (not Bourguignat, 1863) is described as Helicella juglans spec. nov. This species stands apart among the Helicellinae by the lack of a separate penis. Neither material nor reliable records of Xerotricha conspurcata (Draparnaud, 1801) could be traced; only X. apicina (Lamarck, 1822) is known from Cyprus. The wide-spread "arrouxi" has also been found on...
Tipo: Article / Letter to the editor
Palavras-chave: Helicidae; Helicellinae; Taxonomy; Key; Cyprus; 42.73.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/318592

Leefomgevingseisen van de Nederlandse reptielen
Provedor de dados: 16
Autores: Tonkes, M.
Met het Natuurbeleidsplan lijkt, na een lange periode van negatieve ontwikkelingen voor landschap en natuur, eindelijk een keerpunt te worden bereikt. Door een netwerk van natuurgebieden en trekwegen, de “Ecologische Hoofdstructuur”, moet de natuur weer meer kansen gaan krijgen. Naast herstel zal ook ontwikkeling van nieuwe natuurgebieden gaan plaatsvinden. Eén van de diergroepen die hier van zou kunnen profiteren is de groep van de nederlandse reptielen. Om tot herstel en ontwikkeling te komen zal eerst duidelijk moeten zijn welke eisen de reptielen aan hun omgeving stellen; de zogenaamde natuurgerichte normstelling. Voor de nederlandse reptielen zijn de eisen nog onvoldoende bekend. Aan de hand van een literatuuronderzoek probeert deze scriptie hierop...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/506340

De houding van de mens tegenover diersoorten, in ruimte en tijd
Provedor de dados: 16
Autores: NN.
De International Union for Conservation of Nature and Natural Resources (IUCN) houdt zich, zoals de naam aangeeft, bezig met het behoud van natuur en natuurlijke hulpbronnen en met de bevordering van de duurzaamheid van het gebruik van die beide door de mens. De IUCN, die als roepnaam ‘World Conservation Union’ hanteert, zetelt in Zwitserland en heeft 663 leden in 119 landen: 62 staten (waaronder Nederland), 110 overheidsinstellingen, 416 nationale en 38 internationale particuliere organisaties, en 37 leden zonder stemrecht.¹ In Nederland zijn vrijwel alle grote en enkele kleinere natuur- en milieubeschermingsorganisaties aangesloten; de Universiteit van Amsterdam is de eerste Nederlandse wetenschappelijke instelling die is toegetreden. De particuliere...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527862

Boekaankondigingen
Provedor de dados: 16
Autores: Meijden, R. van der.
P. Bremer, Het Voorsterbos, over de ontwikkeling van flora en fauna, Zwolle, 1991, 116 pag., ƒ 15, te bestellen via gironummer 3329375 t.n.v. P. Bremer, Zwolle. — Een gedetailleerd verslag over dit in de Noordoostpolder gelegen bos, met gegevens over Hogere planten, blad- en levermossen, lichenen, paddestoelen, vogels en andere diergroepen. P. Bremer, M.A. Heinen, A.J. Dijkstra &amp; J. Brouwer, Flora en fauna van de Oldenzaalse stuwwal, Basisrapport Milieuinventarisatie, Provincie Overijssel, Zwolle, 1990, 216 pag., ƒ 28,50, te bestellen via giro 833220 t.n.v. provincie Overijssel te Zwolle.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/528147

Bornean freshwater crabs of the genus Arachnothelphusa gen. nov. (Crustacea: Decapoda: Brachyura: Gecarcinucidae)
Provedor de dados: 16
Autores: Ng, P.K.L.
A new genus, Arachnothelphusa gen. nov., is established for five species of Bornean freshwater crabs (Gecarcinucidae) previously placed in Thelphusula Bott, 1969. One species from Sabah, A. terrapes, is here described as new. The genus is characterised by its long ambulatory legs, shape of the carapace and structure of the male pleopods.
Tipo: Article / Letter to the editor
Palavras-chave: Crustacea; Decapoda; Brachyura; Gecarcinucidae; Arachnothelphusa gen. nov.; Arachnothelphusa terrapes spec. nov.; Semiterrestrial freshwater crabs; Borneo; 42.74.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/318368

The genus Nervilia (Orchidaceae) in Africa and the Arabian Peninsula
Provedor de dados: 16
Autores: Pettersson, Börge.
The orchidaceous genus Nervilia Comm. ex Gaud, is revised for Africa, including Madagascar and other islands, and the Arabian peninsula. Sixteen species are recognized, two of which are each subdivided into two varieties. Keys are presented for all taxa. Lectotypes or neotypes are given for all relevant names from Africa. For each species full synonymy, description, distribution map, notes on habitat, flowering time etc., and a line drawing are provided. All species but two are also illustrated by colour photographs. A cladistic analysis of the genus is presented. Phytogeography, morphology, pollination, altitudinal range etc. are briefly discussed.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/509472

A new genus of Braconinae with depressed ovipositor-tip from the Oriental region (Hymenoptera: Braconidae)
Provedor de dados: 16
Autores: Achterberg, C. van; Quicke, D.L.J.
Trullabracon gen. nov. (Braconidae: Braconinae; type-species: T. fuscipennis spec. nov.) from Sumatra is described and fully illustrated.
Tipo: Article / Letter to the editor
Palavras-chave: Braconidae; Braconinae; Trullabracon; Oriental; 42.75.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/319375

Salmoneus sketi, a new species of alpheid shrimp (Crustacea: Decapoda: Caridea) from a submarine cave in the Adriatic
Provedor de dados: 16
Autores: Fransen, C.H.J.M.
A new species of Alpheidae, Salmoneus sketi, is described and figured. Two specimens of the species were found in a submarine cave in the Adriatic.
Tipo: Article / Letter to the editor
Palavras-chave: Decapoda; Caridea; Alpheidae; Salmoneus; New species; Mediterranean Sea; 42.74.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/318944

Fossil Polypodiaceae and their spores
Provedor de dados: 16
Autores: Uffelen, Gerda A. van.
In this publication emphasis is laid on the modern definition of the family Polypodiaceae (Filicales), which is based on an extensive study of Recent material and which is much restricted with respect to older circumscriptions of the family as usually applied by palaeobotanists. Fossils of fems belonging to the family in the strict sense are extremely rare and those examined do not bear any spores suitable for study. Of the fossils attributed to the family in its traditional, large sense, only a small minority belongs to the family in its strict sense. A survey of the few polypodiaceous fossils known to the author is given together with a list of non-polypodiaceous fossils that usually (sometimes tentatively) have been referred to the family Polypodiaceae.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525363

Voortvarend (2)
Provedor de dados: 16
Autores: Rotteveel, Ton.
In ons land wordt veel graszaad geteeld; het zaad hiervoor kan incidenteel uit het buitenland komen. Graszaadpercelen worden intensief gecontroleerd op soortechtheid en raszuiverheid. Bij geruchte is vernomen dat de bij ons uitgestorven Lolium temulentum wel eens door keurmeesters in graszaadpercelen wordt aangetroffen. Het is noodzakelijk om, als zulke vondsten worden gedaan, het materiaal te conserveren en ter beschikking van het Rijksherbarium te stellen.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527834

The genus Alocasia (Araceae) in Australasia
Provedor de dados: 16
Autores: Hay, A.; Wise, Rosemary.
The genus Alocasia (Araceae) is revised for Australasia. Thirteen species are recognised and keyed; eleven are endemic to and one is thought to be introduced to and escaped in Papuasia; A. brisbanensis (F.M. Bailey) Domin is endemic to Australia, and is redescribed; five are new to science. The genus Xenophya Scott is reduced to synonymy with Alocasia and the new combinations A. brancifolia (Scott) A. Hay and A. lauterbachiana (Engler) A. Hay are made. Infrageneric groups (incl. Xenophya) are informally erected. Variation in shoot architecture is discussed. Line drawings are provided of previously unillustrated or obscurely illustrated species. Distributions are partly mapped. It is noted that the aroid crop plants A. macrorrhizos (L.) G. Don and...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/525733

Coralliomyzontidae, Fam. n. (Copepoda: Siphonostomatoida), associated with Scleractinian corals in Madagascar
Provedor de dados: 16
Autores: Humes, Arthur G.; Stock, Jan H.
Coralliomyzon tenens, gen. n., sp. n., associated with the coral Turbinaria peltata gen. n., sp. n., associated with the coral (Esper) in Madagascar, is placed in a new siphonostomatoid family, the Coralliomyzontidae, along with Cholomyzon Stock &amp; Humes, 1969. The new family, close to the Asterocheridae, is characterized chiefly by the maxilliped having 2 basal segments and 2 distal segments forming together a clawlike part, the absence of an inner seta on the first and second segments of the exopod of leg 1, leg 4 reduced to a minute process with 1 or 2 setae, and leg 5 reduced to 2 setae.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/505538

Een nieuwe groeiplaats van de Pilvaren (Pilularia globulifera L.) in de Nederlandse duinen
Provedor de dados: 16
Autores: Farjon, A.; Wallnöfer, B.
Until now Pilularia globulifera was restricted, as far as it concerns its coastal distribution, to a few localities on the island of Terschelling. Recently, a tiny population was discovered in the non-calcareous dunes near Schoorl (prov. Noord-Holland). The plants grow in a shallow pool together with Littorella uniflora and Scirpus setaceus.
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527363

Review
Provedor de dados: 16
Autores: Ridder-Numan, J.
‘Dynamic Biogeography’ is an attempt to give biogeography its own place between other biological disciplines. Hengeveld defines dynamic biogeography as an analysis and understanding of spatial biological phenomena in terms of past and present factors and processes. Species ranges are dynamic structures varying with changing environmental conditions. The book is arranged from broad scale to fine scale patterns and processes, from classifications to detailed models of species ranges. Although this book is written from an ecological point of view, the author stresses the idea that biogeography should not be restricted to e.g. ecological or historical processes. For the herbarium systematist it will be often impossible to work with the large data collections...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/524695

Distribution of Myctophidae (Pisces, Myctophiformes) during the four seasons in the mid North Atlantic
Provedor de dados: 16
Autores: Spoel, S. van der; Bleeker, J.
The distribution, temperature, and size ranges of 60 species of myctophids in the North Atlantic between 55°N and 24°N along approximately 30°W are recorded for the four seasons. The general zoogeography and migration is discussed. Faunal groups of species, faunal borders, and transition zones near 50°N, 41 °N, and 29°N for myctophids are distinguished and discussed.
Tipo: Article / Letter to the editor
Palavras-chave: Myctophidae; Biogeography; North Atlantic; Faunal borders.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/504270

FLORON kaderkamp 1991
Provedor de dados: 16
Autores: Spronk, Joep.
Van 13 tot en met 17 juni werd in Bergeijk (Z.O.-Brabant) voor de eerste maal het FLORONkaderkamp gehouden. Zoals uit de naam blijkt was het bedoeld voor district-coördinatoren en degenen die zij verder voor het kamp het meest in aanmerking vonden komen. Het kamp had als uitvalsbasis een kampeerboerderij met voldoende ruimte en mogelijkheden voor onderling overleg, studie, etc. Door de ongedwongen sfeer, de grote persoonlijke vrijheden en de soepele inzet van alle deelnemers voor de verplichte figuren was het kamp niet alleen uit floristisch oogpunt een succes. Het programma bestond uit drie delen: – herhaling van het experiment van Ruud de Koning, eerder uitgevoerd bij de flora-inventarisatie van Drenthe – het groepsgewijze inventariseren van km-blokken –...
Tipo: Article / Letter to the editor
Ano: 1991
URL: http://www.repository.naturalis.nl/record/527381

Removal of carbon dioxide (CO2) from the biogas produced by a cow slurry anaerobic digester
Provedor de dados: 19
Autores: 梅津, 一孝; 高畑, 英彦; 干場, 秀雄; 山本, 智久; Umetsu, Kazutaka; Takahata, Hidehiko; Hoshiba, Hideo; Yamamoto, Tomohisa.
Palavras-chave: バイオガス; メタンガス; 炭酸ガス除去; 乳牛スラリー.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1684

牧草の常温通風乾燥時における通風空気制御条件
Provedor de dados: 19
Autores: 松田, 清明.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/492

オカリナ製作の手引
Provedor de dados: 19
Autores: 梅津, 勝; Umezu, Masaru.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1935

ナガイモの貯蔵に関する研究-2-大型貯蔵施設内で貯蔵中の品質変化
Provedor de dados: 19
Autores: 弘中, 和憲; 石橋, 憲一; Hironaka, Kazunori; Ishibashi, Kenichi.
農業機械学会「農業機械学会誌」53(4)ｐ31-39 1991/7月より転載
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2484

意味の本質論 (Ⅰ)
Provedor de dados: 19
Autores: 森下, 盈; Morishita, Mitsuru.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1932

Cellualr Subsets Involved in Protective Immunity to Babesiarodhaini Infection in BALB/c Mice
Provedor de dados: 19
Autores: Shimada, Terumasa; Igarashi, Ikuo; Maki, Yoshiyuki; Claveria, Florencia G.; Saito, Atsushi; Suzuki, Naoyoshi.
Protective immune responses and the functional role of spleen cells in mice infected with Babesia rodhaini were examined with an in vitro proliferation assay systems and by in vivo passive transfer of spleen cells to uninfected mice. Mice that resolved primary babesial infection after chemotherapy (Babesia immune mice) had transient and low parasitemia after challenge infection and high rates (75%) of survival. Babesia hyperimmune mice, by contrast, had no detectable parasitemia after challenge and 100% survival. Proliferative response of spleen cells to Babesia lysate antigen (BLA) were determined for mice from both groups. This proliferative response was inhibited by treatment of spleen cells with anti-T cell serum and monoclonal antibody (MAb) to Lyt l...
Palavras-chave: Babesia rodhaini; Cell transfer; Spleen cells; Protective immunity.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/157

ナガイモの貯蔵に関する研究-3-圃場越冬ナガイモの品質変化
Provedor de dados: 19
Autores: 弘中, 和憲; 石橋, 憲一; Hironaka, Kazunori; Ishibashi, Kenichi.
農業機械学会「農業機械学会誌」53(5)ｐ65-73 1991/9月より転載
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2485

北海道における夏季乳房炎 : 野外症例の臨床，細菌および病理学的所見
Provedor de dados: 19
Autores: 更科, 孝夫; 米道, 裕彌; 瀬能, 昇; Sarashina, Takao; Yonemichi, Hiromi; Seno, Noboru.
Palavras-chave: 夏季乳房炎; 臨床所見; 細菌学; 病理学.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1639

Rapid Detection of Plastmodium by a New ‘Thick Smear’ Method using Transmission Fluorescence Microscopy : Direct Staining with Acridine Orange
Provedor de dados: 19
Autores: Kawamoto, Fumihiko.
A new staining technique of 'thick smears' was developed tor diagnosis of malaria using transmission fluorescence microscopy. Plasmodium falciparum cultured in vitro was used as a model. The infected blood was mixed 1 : 1 -1 :2 with acridine orange (AO) solution (final concentrations of 50-lOOu.g/ml in 0.01 M Tris-HCI buffer or in PBS, pH 7.0-7.5). Immediately or several minutes later, haemolyzed or non-haemolyzed 'thick smears' were observed directly by fluorescence microscopy using an interference filter specially designed for excitation of AO or commercially available, three (interference-, glass- and triacetyl cellulose film-) types of B-excitation filters with halogen- or daylight-illuminated microscopes. All of these filters were capable of detecting...
Palavras-chave: Acridine orange; Fluorochrome staining; Interference filter; Plasmodium; Thick smear.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/156

パーソナルコンピュータカラー画像解析による豚凍結粉砕肉の化学的構成の推定
Provedor de dados: 19
Autores: 口田, 圭吾; 鈴木, 啓一; 八巻, 邦次; 篠原, 久; 山岸, 敏宏.
Palavras-chave: Pork meat color; Image analysis; Chemical components.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/930

カナダで開催される第10回国際生物物理学会で研究発表したのち，米国ワシントン州立大学で共同研究を行う
Provedor de dados: 19
Autores: 桑山, 秀人.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/499

ナガイモの貯蔵に関する研究-1-貯蔵温度および包装方法がナガイモの品質におよぼす影響
Provedor de dados: 19
Autores: 弘中, 和憲; 石橋, 憲一; Hironaka, Kazunori; Ishibashi, Kenichi.
農業機械学会「農業機械学会誌」53(3)ｐ75-83 1981/5月より転載
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2483

Factors influencing the measurement accuracy of the livestock walk-through scale
Provedor de dados: 19
Autores: 龍, 吉生; 高畑, 英彦; 梅津, 一孝; 干場, 秀雄; 池滝, 孝; 竹山, 一郎; 西岡, 廉生; LONG, jisheng; TAKAHATA, Hidehiko; UMETSU, Kazutaka; HOSHIBA, Hideo; IKETAKI, Takashi; TAKEYAMA, Ichiro; NISHIOKA, Yasuo.
Palavras-chave: 計量精度; 荷重変動; 歩数; 通過速度; 段差.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1667

1960年代畑作地帯の農業調整 : 北海道と府県の比較
Provedor de dados: 19
Autores: 伊藤, 繁.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/491

Erskine Caldwell文学の多様性
Provedor de dados: 19
Autores: 伏見, 茂; Fushimi, Shigeru.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1934

翻訳文学作品年表 : 室町期 - 江戸 - 明治 - 大正期
Provedor de dados: 19
Autores: 千葉, 宣一; Chiba, Senichi.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1937

Agro-Meteorological information systems in the Tokachi district : 1. The present condition of Agro-Meteorological information systems
Provedor de dados: 19
Autores: 松田, 豊; 松岡, 直基; 志賀, 清; 辻, 修; Matsuda, Yutaka; Matsuoka, Naoki; Shiga, Kiyoshi; Tsuji, Osamu.
Palavras-chave: 農業気象情報; アメダス（AMeDAS）.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1680

Fatty acid compositions in Leguminosae seeds
Provedor de dados: 19
Autores: 小嶋, 道之; 大西, 正男; 伊藤, 精亮; Kojima, Michiyuki; Ohnishi, Masao; Ito, Seisuke.
Palavras-chave: マメ科植物種子; 脂質; 脂肪酸; トリアシルグリセロール; 分子種.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1676

Development of devices for measuring external forces acting on agricultural lugged wheels (part 2) : Characteristics of small-sized transducers of three-surfaced lug type
Provedor de dados: 19
Autores: 岸本, 正; 谷口, 哲司; 坂井, 純; 石本, 和重; 大友, 功一; Kishimoto, Tadashi; Taniguchi, Tetsuji; Sakai, Jun; Ishimoto, Kazushige; Ohtomo, Koh-ichi.
Palavras-chave: トランスデューサ; ラグ; 農用車輪; 車輪工学.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1682

乳用牛における生体重の相違と横臥・起立行動との関連性
Provedor de dados: 19
Autores: 池滝, 孝.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/496

Effects of feeding aerobic deteriorated grass silage on the ruminal characteristics of sheep
Provedor de dados: 19
Autores: 松岡, 栄; 長内, 清; 石飛, はるえ; 藤田, 裕; Matsuoka, Sakae; Osanai, Kiyoshi; Ishitobi, Harue; Fujita, Hiroshi.
Palavras-chave: 好気的変敗; 牧草サイレージ; めん羊; 第一胃内性状.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1670

前処理した甜菜生汁および廃糖蜜のAspergillus terreus K26によるイタコン酸醗酵
Provedor de dados: 19
Autores: 中川, 允利; 石橋, 憲一; 弘中, 和憲; Nakagawa, Mitsutoshi; Ishibashi, Ken-ichi; Hironaka, Kazunori.
Palavras-chave: イタコン酸醗酵; 前処理; 甜菜生汁; 甜菜廃糖蜜; メチレンコハク酸.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1646

Sterollipids and sphingolipids in Adzuki bean (Vigna angularis) organs
Provedor de dados: 19
Autores: 小嶋, 道之; 片桐, 康史; 古川, 直樹; 毛利, 英孝; 大西, 正男; 伊藤, 精亮.
Palavras-chave: アズキ各部位; ステロール脂質; スフィンゴ脂質; セレブロシド; 分子種.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1677

Chemical characterization of sphingophosphoglycolipids in rice leafy stems
Provedor de dados: 19
Autores: Kojima, Michiyuki; Ohta, Keiko; Ohnishi, Masao; Ito, Seisuke; 小嶋, 道之; 太田, 景子; 大西, 正男; 伊藤, 精亮.
Palavras-chave: Rice leafy stem; Sphingolipid; Phytoglycolipid.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1651

未利用植物資源の活用に関する研究
Provedor de dados: 19
Autores: 福島, 道広.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/493

後天性免疫不全症(AIDS)の治療におけるトキソプラズマ抗原の役割に関する研究
Provedor de dados: 19
Autores: 鈴木, 直義.
平成2年度科学研究費補助金(一般研究A)研究成果報告書62440020
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1757

日本の食文化とチーズの摂取
Provedor de dados: 19
Autores: 有賀, 秀子; Ariga, Hideko.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2303

初代培養牛乳腺細胞における凍結保存法の検討
Provedor de dados: 19
Autores: 古村, 圭子.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/490

Process for concentrating potassium itaconate in fermented liquor by reverse osmosis
Provedor de dados: 19
Autores: 中川, 允利; Nakagawa, Mitsutoshi.
Palavras-chave: 逆浸透法; アセチルセルロース膜; イタコン酸醗酵; メチレンコハク酸; イタコン酸カリウム.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1675

Studies on the Properties and use of Juku-so reproduced on the basis of "Honzoukoumoku"
Provedor de dados: 19
Autores: 有賀, 秀子; 高橋, セツ子; 大谷, 能子; 竹内, 真澄; 筒井, 静子; 堀井, 光代.
Palavras-chave: 熟酥; 本草綱目.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1871

第二回国際双翅学会議への出席及び発表並びに関連研究機関における衛生・農業上重要な双翅目昆虫に関する研究交流
Provedor de dados: 19
Autores: 岩佐, 光啓.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/497

量的形質の表現型変異におよぼす環境効果と遺伝子型と環境との相互作用効果
Provedor de dados: 19
Autores: Miura, Hideho; 三浦, 秀穂.
Palavras-chave: Genotype-environment interaction; Heritability; Nicotiana rustica; Selection; 遺伝子型と環境との相互作用; 遺伝力; ルスチカタバコ; 選抜.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1674

甜菜生汁および廃糖蜜のAspergillus terreus K26によるイタコン酸醗酵で許容される金属イオンおよび有機酸量
Provedor de dados: 19
Autores: 中川, 允利; 石橋, 憲一; 弘中, 和憲; Nakagawa, Mitsutoshi; Ishibashi, Kenichi; Hironaka, Kazunori.
Palavras-chave: イタコン酸醗酵; 金属イオン; 有機酸; 甜菜生汁; 甜菜廃糖蜜.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1647

記号論の揺籃　Ⅱ : パース､一八六七年
Provedor de dados: 19
Autores: 中原, 淳一; NAKAHARA, Jun-ichi.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1936

Measurements of productivity differences in forage production in Hokkaido
Provedor de dados: 19
Autores: 永木, 正和; Nagaki, Masakazu.
Palavras-chave: 粗飼料生産; 技術効率; 生産関数; 経営規模; 技術方式.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1668

The relationship of the durability of water and the pre-treatement in farm by-products
Provedor de dados: 19
Autores: 干場, 秀雄; 高畑, 英彦; 梅津, 一孝; 熊瀬, 登; HOSHIBA, Hideo; TAKAHATA, Hidehiko; UMETSU, Kazutaka; KUMASE, Noboru.
Palavras-chave: 農場副産物; アンモニア処理; ビートパルプ; 成形性能; 耐久性.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1666

In Vitro Excystation and Cryoreservation of Ovine and Caprine Sarcocystis species
Provedor de dados: 19
Autores: Horn, Karin; Ono, Kenichiro; Heydorn, Alfred Otto.
This paper describes a standard method for in vitro excystation of sporocysts of S.capracanis, S.hircicanis, S.ovicanis and S.arieticanis. A standard pretreatment was performed by 20 minutes preincubation of sporocysts in aqueous sodium hypochlorite (NaOCl) solution of 6% or 8% at room temperature. Then, sporocysts were washed 5 times in distilled water and were incubated for one hour at 39OC in excystation fluid consisting of RPMI 1640 medium, 10% PCS and 15% bovine bile. Additional sonication of pretreated sporocysts increased excystation rates as compared to not sonicated controls. Excystation rates for 1-9 months old sporocysts were 77% for S.capracanis, 77% for S.hircicanis, 72% for S.arieticanis and 92% for S.ovicanis. Sporozoite suspension as...
Palavras-chave: Cryopreservation; In vitro excystation; Sarcocystis spp.; Sporozoites.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/154

ソ連の社会システムの転換と「社会問題」の背景 : 生活様式の変化と社会集団の利害関係
Provedor de dados: 19
Autores: 水田, 明男; Mizuta, Akio.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1933

Automatic measuring system of RI probe moisture-density gauge and the measurement of soil moisture changing in field
Provedor de dados: 19
Autores: 土谷, 富士夫; 辻, 修; 松田, 豊; Tsuchiya, Fujio; Tsuji, Osamu; Matsuda, Yutaka.
Palavras-chave: アイソトープ; 土壌水分; 水収支; Γ線.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1678

Estimation of the nutrition intake cost in rural Japan : 1957-1981
Provedor de dados: 19
Autores: 澤田, 学; Sawada, Manabu.
Palavras-chave: 食料消費; 栄養摂取コスト; 特性需要理論; 線型計画法.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1669

In Vitro Cultivation of Blood Stream Trypomastigotes of Trypanosoma vivax without Feeder Cell Layers
Provedor de dados: 19
Autores: Hirumi, Hiroyuki; Hirumi, K.; Moloo, S. K.; Shaw, M. K.
Bloodstream trypomastigotes (BSFs) of 2 clones (IL 1392 and IL 3671) of Trypanosoma vivax were cultured without feeder layers in 3 systems. System I: metacyclic-producing cultures of T. vivax IL 1392 were initiated with BSFs derived from infected mice at 27 OC in the presence of feeder layers using TVM-1 medium. Metacyclics harvested were then transferred to flasks containing feeder cells and maintained at 34 OC using TVM-22 medium. Under such conditions, the metacyclics transformed to BSFs. Bloodstream trypomastigotes which were then transferred to new flasks, continued to grow in HMI-162 medium without feeder cells. The maximum density of the BSFs and their shortest population doubling time were 3.5 x l06 / ml and 13.5 h, respectively. System II:...
Palavras-chave: Feeder cell layers; In vitro cultivation; Trypomastigotes.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/153

Development of devices for measuring external forces acting on agricultural lugged wheels (part 1) : Characteristics of transducers of orthogonally holed cantilever type
Provedor de dados: 19
Autores: 岸本, 正; 坂井, 純; 谷口, 哲司; 石本, 和重; Kishimoto, Tadashi; Sakai, Jun; Taniguchi, Tetsuji; Ishimoto, Kazushige.
Palavras-chave: トランスデューサ; 駆動車輪; 自由転動車輪; 車輪工学; 農用車輪.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1681

A simple amylase test based on unit grain and its application on α-amylase activity in wheat grain
Provedor de dados: 19
Autores: 沢田, 壮兵; Sawada, Souhei.
Palavras-chave: Α-アミラーゼ; コムギ; 穂発芽.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1673

Role of Chicken Pancreatic Trypsin, Chymotrypsin and Elastase in the Excystation Process of Eimeria tenella Oocysts and Sporocysts
Provedor de dados: 19
Autores: Guyonnet, Vincent; Johnson, Joyce K.; Long, Peter L.
The role of pancreatic proteolytic enzymes in the excystation process of Eimeria tenella oocysts and sporocysts was studied in vitro. Intact sporulated oocysts were preincubated in phosphate buffer, NaCl 0.9% (PBS) added with 0.5% chicken bile extract in a 5% C02 atmosphere for 30 minutes prior to exposure to either 0.25% (w/v) chicken trypsin, chymotrypsin, pancreatic elastase, or a 1% (w/v) crude extract of unsporulated and sporulated oocysts of E. tenella (Expt.1). No excystation was observed under these conditions. Sporocysts were also incubated under the same conditions without pretreatment in C02. Excystation was observed for sporocysts incubated with either trypsin, chymotrypsin or pancreatic elastase, the best percentage of excystation being...
Palavras-chave: Chymotrypsin; Eimeria tenella; Elastase; Excystation; Trypsin.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/155

Annual and Daily Activities of the Flying Squirrel, Pteromys volans orii, in Captivity
Provedor de dados: 19
Autores: 柳川, 久; 田中, 雅宏; 井上, 剛; 谷口, 明里; Yanagawa, Hisashi; Tanaka, Masashiro; Inoue, Tsuyoshi; Taniguchi, Misato.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2461

ナガイモの生育中の品質変化
Provedor de dados: 19
Autores: 弘中, 和憲.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/494

冷蔵期間が牛筋漿タンパク質画分の抽出性におよぼす影響
Provedor de dados: 19
Autores: 関川, 三男.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/534

Effects of fermentation product by Lactobacillus acidophilus on starch metabolism in germinating seeds of corn
Provedor de dados: 19
Autores: 美濃, 羊輔; 木嶋, 伸行; Mino, Yosuke; Kijima, Nobuyuki.
Palavras-chave: トウモロコシ; 乳酸菌発酵産物; デンプン代謝.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1671

Development of biogas plant in cold region
Provedor de dados: 19
Autores: 高畑, 英彦; 梅津, 一孝; 川本, 常美; Takahata, Hidehiko; Umetsu, Kazutaka; Kawamoto, Tsunemi.
Palavras-chave: バイオガスプラント; メタンガス; 熱収支.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1653

Virucidal effect of disinfectants on several animal viruses
Provedor de dados: 19
Autores: Nomura, Yasuharu; Ohta, Chikako; Shirahata, Toshikazu; Goto, Hitoshi; 野村, 泰春; 太田, 千佳子; 白幡, 敏一; 後藤, 仁.
Palavras-chave: Disinfectants; Viruses.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1638

Effect of frost heave on the though of reinforced concrete
Provedor de dados: 19
Autores: 辻, 修; 松田, 豊; 土谷, 富士夫; Tsuji, Osamu; Matsuda, Yutaka; Tsuchiya, Fujio.
Palavras-chave: 側溝; 土壌凍結; 凍上.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1679

北海道における夏季乳房炎 : Actinomyces pyogenesによる実験的乳房炎の臨床と病理学的所見
Provedor de dados: 19
Autores: 米道, 裕彌; 更科, 孝夫; Yonemichi, Hiromi; Sarashina, Takao.
Palavras-chave: 夏季乳房炎; 実験感染; Actinomyces pyogenes; Smmer mastitis; Experimental infection.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1640

乳牛の眼科疾患に対する超音波診断の基礎的検討
Provedor de dados: 19
Autores: 宮原, 和郎.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/597

第6回国際農業食品廃棄物シンポジュームに於ける発表ならびに研究交流
Provedor de dados: 19
Autores: 梅津, 一孝.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/498

Growth and yield of spring wheat sown in autumn and early winter in the Tokachi district
Provedor de dados: 19
Autores: 沢田, 壮兵; 新発田, 修治; 高橋, 浩司; 角谷, 啓登; Sawada, Souhei; Shibata, Shuji; Takahashi, Kouji; Kakutani, Hiroto.
Palavras-chave: 秋播き栽培; コムギ; 収量; 生育; 春播き品種.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1672

ダイコン発芽実生の低温シフト処理による脂質組成の変動
Provedor de dados: 19
Autores: 小嶋, 道之; 母坪, 研巳; 木下, 幹朗; 大西, 正男; 伊藤, 精亮; Kojima, Michiyuki; Hotsubo, Kenmi; Kinoshita, Mikio; Ohnishi, Masao; Ito, Seisuke.
Palavras-chave: ダイコン実生; 低温処理; グリセロリン脂質; セレブロシド; 分子種.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1649

Actual spraying height investigation of boom sprayers in field operation
Provedor de dados: 19
Autores: 佐藤, 禎稔; 宮本, 啓二; 松田, 清明; Satow, Tadatoshi; Miyamoto, Keiji; Matsuda, Kiyoaki.
Palavras-chave: 防除作業; ブームスプレーヤ; 噴霧高さ; ローリング; スペクトル解析.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1683

北海道におけるハクガンの記録と十勝における初観察例
Provedor de dados: 19
Autores: 柳川, 久; 武藤, 満雄; Yanagawa, Hisashi; Muto, Mitsuo.
Ano: 1991
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2296

Environmental Pollution In The Nigeria Coastal Waters; A Case Study Of The Lagos Lagoon
Provedor de dados: 20
Autores: Adekanbi, E.O.; Okoye, B.C.O.; Ajao, E.A.
The state of pollution in the Lagos lagoon was examined by a field survey of twenty-six sites (stations) in the dry and wet season in 1985. Some selected sites were further re-examined in the same period in 1986. The sediment trace metals and total hydrocarbons were analysed. The relationship between non residual and residual trace elements was examined. For both years of study, total trace metal levels (mg/kg) fell in the ranges: Cu,1.9 – 132.4, Cr, 2.9 – 167; 7.8 – 830. 6; Ph, 1.6 – 483.1 and Cd, 0.04 – 15.5. Total hydrocarbon concentrations in 1985 ranged from 0.25 to 2766.27 mg/g with high concentrations in muddy and sandy sediments. The results show marked variations and non – uniform distribution from one season to another. With few exceptions,...
Tipo: Working Paper
Palavras-chave: Environmental pollution; Coastal waters.
Ano: 1991
URL: http://hdl.handle.net/1834/269

Communication mer-lagune: impact d'une réouverture sur l'ichtyofaune de la lagune Ebrié (Côte d'Ivoire)
Provedor de dados: 20
Autores: Albaret, J.J.; Ecoutin, J.-M.
La réouverture artificielle de la passe de Grand-Bassam, pratiquée en septembre 1987 dans le but de limiter la prolifération des végétaux aquatiques, a modifié l'environnement et la structure des peuplements ichtyologiques de la partie orientale de la lagune Ebrié (Côte d'Ivoire). Les résultats de deux séries d'observations réalisées en mai 1988 montrent une élévation notable de la salinité et une augmentation de la composante marine au sein des peuplements de poissons par rapport à la situation antérieure (années de référence: 1980 et 1981).
Tipo: Journal Contribution
Palavras-chave: Lagoons; Communication; Sea; Environmental impact.
Ano: 1991
URL: http://hdl.handle.net/1834/5371

Plan directeur de développement forestier pêche et aquaculture continentales
Provedor de dados: 20
Autores: Diouf, P.S.; Kebe, M.; Le Reste, L.; Bousso, T.; Diadhiou, H.D.; Gaye, A.B.
FAO, Rome (Italie);Ministère du Développement et de l'Hydraulique, Dakar (Sénégal)
Tipo: Book
Palavras-chave: Development potential; Fisheries; Aquaculture; Marketing; Development projects; Fish consumption; Hydrology; Inland water environment; Aquatic environment; Forests; Socioeconomic aspects; Climatic data; Natural resources; Fresh water; Natural resources; Fisheries; Aquaculture; Marketing; Development projects; Forests; Climatic data; Hydrology; Inland water environment; Aquatic environment; Http://aims.fao.org/aos/agrovoc/c_5091; Http://aims.fao.org/aos/agrovoc/c_2934; Http://aims.fao.org/aos/agrovoc/c_550; Http://aims.fao.org/aos/agrovoc/c_4620; Http://aims.fao.org/aos/agrovoc/c_2229; Http://aims.fao.org/aos/agrovoc/c_3062; Http://aims.fao.org/aos/agrovoc/c_29553; Http://aims.fao.org/aos/agrovoc/c_3731; Http://aims.fao.org/aos/agrovoc/c_3875; Http://aims.fao.org/aos/agrovoc/c_554.
Ano: 1991
URL: http://hdl.handle.net/1834/2886

L’environnement, les ressources et les pêcheries de la ZEE mauritanienne
Provedor de dados: 20
Autores: Girardin, M.; Chavance, P.
Les traits majeurs de l’environnement de la ZEE mauritanienne sont décrits dans le premier chapitre, tandis que le second trace les caractéristiques essentielles de l’écobiologie des espèces susceptibles d’être la cible de flottilles. Ces deux premières parties ont pour but de définir le cadre naturel dans le quel évoluent les flottilles de pêche. Ces dernières sont décrites dans un troisième chapitre en retenant leurs caractéristiques essentielles dépouillées des éléments jugés conjoncturels et anecdotiques. En conclusion, le document s'efforce de tirer quelques enseignements utiles à la recherche et à la gestion.
Tipo: Report
Palavras-chave: Régime hydrologique; Température; Environnement; Cadre sédimentologique; Pêche artisanale; Cadre géomorphologique; Pêcheries industrielles; Ressources démersales; ZEE; Upwelling; Cadre géographique; Zone Economique Exclusive; Salinité; Masses d’eau; Courants; Mauritanie; Ressources pélagiques; Environments.
Ano: 1991
URL: http://hdl.handle.net/1834/517

Synthèse des travaux effectués au CRO sur les végétations envahissantes flottantes (1985-1990): propositions et recommandations
Provedor de dados: 20
Autores: Bard, F. X.; Guiral, D.; Amon Kothias, J.B.; Koffi, K. Ph.
Lors de cette période, une série d'actions a été menée, visant à la lutte contre les végétations flottantes en lagune Ebrié. Les résultats obtenus sont importants, bien que l'on puisse reprocher à ces actions un certain manque de coordination. Le bilan peut être fait ainsi: le suivi des différentes phases d'envahissement indique bien que la cible principale est désormais la jacinthe d'eau (Eichhornia crassipes). L'espèce Pistia stratiotes, endémique, ne constitue pas une véritable menace. S. molesta, qui a été menaçante, reste actuellement cantonnée à quelques zones oligohalines de la lagune Ebrié, la concurrence de la jacinthe d'eau ayant fortement réduit son extension en zones dulçaquicoles. L'introduction de l'insecte phytophage spécifique Cyrtobagous...
Tipo: Journal Contribution
Palavras-chave: Vegetation cover.
Ano: 1991
URL: http://hdl.handle.net/1834/5164

Alargamiento de un buque pesquero de acero
Provedor de dados: 20
Autores: Vite Tomala, Pedro Luis.
El trabajo de alargamiento de la embarcación pesquera descrita en este informe es uno de los primeros que se han realizados en nuestro medio, por ello es necesario que se registre un reporte sobre el desarrollo del mismo. Generalmente un trabajo de alargamiento de este tipo se lo hace básicamente con el propósito de mejorar la rentabilidad de una embarcación, al aumentar la capacidad de sus bodegas. El alargamiento de una embarcación pesquera para propósito de este estudio se lo ha dividido en dos grandes etapas 1.- etapa de diseño 2.- etapa de producción
Tipo: Theses and Dissertations
Palavras-chave: Fishing vessels.
Ano: 1991
URL: http://hdl.handle.net/1834/5703

Seychelles tuna bulletin : third quarter 1991
Provedor de dados: 20
The number of purse seiners active in the Western Indian Ocean increased slightly from 42 at the end of the last quarter to 45 in September. Fishing results improved slightly in the third quarter, with the average catch rates increasing from 15.8 MT/day in the second quarter to an average of 19.0 MT/day in the third quarter.  This represents a slight drop from the same period last year when catch rates averaged 22.0 MT per day; however, it is an improvement over the catch rate of 16.0 MT/day for the same period in 1989. The fishing pattern for the third quarter showed that fishing effort was concentrated between 5 degrees north and 5 degrees south of the Equator in the vicinity of the Northern sector of the Seychelles EEZ.  This follows the same pattern as...
Tipo: Other
Palavras-chave: Purse seiners; Tuna fisheries.
Ano: 1991
URL: http://hdl.handle.net/1834/5208

The Namibian Fisheries Experience
Provedor de dados: 20
Autores: Goodisan, P.
As a consequence of the upwelling of the nutrient rich Benguela current the fishing grounds off the coast of Namibia were once the most productive in the world. Fishing activities off the coast of Namibia have always been organized into two quite separate in-shore and off-shore industries. In shore pilchard and anchovy dominate, whilst off shore hake and Horse Mackerel dominate. A highly integrated fish processing industry based on the in-shore pilchard has been built up at Walvis Bay, whilst of- shore long distance foreign fleets with few links to Walvis Bay have dominated the fishery.
Tipo: Journal Contribution
Palavras-chave: Fishery industry.
Ano: 1991
URL: http://hdl.handle.net/1834/828

Les effets de la réouverture de l'embouchure du fleuve Comoé sur la végétation littorale lagunaire (lagune Ebrié-Côte d'Ivoire).
Provedor de dados: 20
Autores: Sankaré, Y.; Amon Kothias, J.B.; Konan, A.A.
Les résultats des données floristiques recueillies, au cours de deux campagnes, dans le secteur oriental de la lagune Ebrié, 1987 (avant la réouverture de l'embouchure)et en 1988 (après la réouverture de l'embouchure) sont présentés dans ce texte. L'augmentation de la salinité (de 4 à 30%) consécutive à la réouverture de l'embouchure du fleuve Comoé, en septembre 1987 a profondément modifié, qualitativement et quantitativement, les groupements végétaux. Les macrophytes flottants libres ou fixés ont été complètement détruits; la forêt de mangrove constituant essentiellement la seule ceinture hydrophytique des berges lagunaires.
Tipo: Journal Contribution
Palavras-chave: River outflow; Rivers.
Ano: 1991
URL: http://hdl.handle.net/1834/5523

Note sur les baleines échouées en estuaires artificiels en Côte d'Ivoire.
Provedor de dados: 20
Autores: Amon-Kothias, J.B.; N'goran, N.Y.
Des baleines échouées dans des eaux estuariennes ont été identifiées en Côte d'Ivoire: le Cachalot macrocéphale, Physeter catodon L.1758 et le rorqual commun, Balaenoptera physalus L.1758.
Tipo: Journal Contribution
Palavras-chave: Whale stranding; Estuaries.
Ano: 1991
URL: http://hdl.handle.net/1834/5522

Seychelles Fishing Authority annual report 1990
Provedor de dados: 20
Autores: Anon.
Tipo: Book
Palavras-chave: Seychelles; ANNUAL REPORTS; FISHERY DEVELOPMENT; TUNA FISHERIES; Artisanal fishing; International cooperation; International cooperation.
Ano: 1991
URL: http://hdl.handle.net/1834/1317

Doses efficaces en glyphosate et en 2,4-D pour le contrôle chimique des laitue d'eau (Pistia stratiotes, Linn.) et  toxicité du glyphosate vis-à-vis des tilapias (Sarotherodon melanotheron).
Provedor de dados: 20
Autores: Etien, N.; Kaba, N.; Amon Kothias, J.B.
Les effets toxiques des herbicides Round up (glyphosate)et 2,4-D (herbazol) ont été testés puis comparés sur des échantillons de salade d'eau (Pistia stratiotes, Linn., Aracées) mis en culture dans des aquariums en verre. Le glyphosate paraît plus toxique sur ces plantes que le 2,4-D. Il a été donc testé sur des juvéniles de tilapias Sarotherodon melanotheron.La dose léthale chez le tilapia (CL50=13.25mg.l-1) est 18,37 et 74 fois environ plus élevée que la dose toxique de glyphosate chez les plantes pour les profondeurs d'eau de 1,2 et 4 mètres respectivement
Tipo: Journal Contribution
Palavras-chave: Toxicity tests; Plant control.
Ano: 1991
URL: http://hdl.handle.net/1834/5524

Concentrations en métaux toxiques chez Crassostrea gasar (Huître de mangrove) en zone urbaine lagunaire d'Abidjan (Côte d'Ivoire)
Provedor de dados: 20
Autores: Métongo, Bernard Soro.
Cet article présente les résultats relatifs à une étude des concentrations en métaux toxiques (Cd, Cu, Hg et Zn) chez Crassostrea gasar (huître de mangrove). Une étude comparative est faite entre les échantillons collectés en zone urbaine (Abidjan) et ceux des régions rurales (Assini-mafia et Assouindé). Les échantillons collectés en zone urbaine d'Abidjan ont des teneurs en métal plus élevées que ceux de la zone rurale, en raison de la pollution chimique due aux rejets urbains et industriels. Les corrélations polluants-poids des organismes et entre polluants sont assez bonnes.
Tipo: Journal Contribution
Palavras-chave: Correlation analysis; Heavy metals.
Ano: 1991
URL: http://hdl.handle.net/1834/5161

Estudio de huevos y larvas de peces en el mar ecuatoriano durante septiembre-diciembre de 1990
Provedor de dados: 20
Autores: Villamar, F.; Ortega, D.
Durante los cruceros oceanográficos realizados en septiembre, noviembre y diciembre de 1990, las especies de peces de interés comercial encontrados fueron: Sardinops sagax, Etrumeus teres, Opisthonema s.p, Scomber japonicus y Engraulis ringens; en concentraciones no mayores a 100 ejemplares/10 m2, localizados en la zona Sur del perfil costanero ecuatoriano. Entre otros huevos (H) y larvas (L) de peces, se encontraron los pertenecientes al género Leuroglossum, de la familia Bathylagidae y también ejemplares pertenecientes a la familia Myctophydae. En general, la cantidad máxima total de huevos de peces fue mayor de 10000 H/10 m2 en la longitud 82°00'W, tanto a la altura de Cabo Pasado como al sur de la Punta de Santa Elena. La cantidad máxima de larvas de...
Tipo: Journal Contribution
Palavras-chave: Larval development; Fish larvae; Commercial species; Fish eggs; Fish larvae; Http://aims.fao.org/aos/agrovoc/c_2924.
Ano: 1991
URL: http://hdl.handle.net/1834/3140

Prospholipid and fatty acid composition of two brachyuran decapod crustacea callinectes latimanus (Rathbun) and cardisoma armatum (herklots)
Provedor de dados: 20
Autores: Idoniboye-Obu, T.I.E.; Ayinla, O.A.
Preparative and analytical thin layer Chromatography have been used to purify and separate phospholipids from the total lipids of Callinectes latimanus (Decapoda: Portunidae) and Cardisoma armatum Decapoda: Gecarcinidae). Comparison of Rf values of standards with standard Rf values in the solvent system employed indicated the presence of phosphatidy 1 ethanolamine (PE; Rf = 0.61), phosphatidy 1 choline (PC; Rf =03.34), phophatidic acid (PA; Rf = 0.76) and phosphatidy 1 – N-methy 1 ethanolamine (PNME; Rf = 0.85).  An unidentified spot with Rf = 0.93 was also detected.  Gas liquid chromatography of the total lipid extract from the two Crustaceans indicated that the predominant saturated fatty acid in the two Crustaceans is palmitic acid (C16:0) with oleic...
Tipo: Report
Palavras-chave: Fatty acids; Crustacean fisheries; Fatty acids; Http://aims.fao.org/aos/agrovoc/c_2818.
Ano: 1991
URL: http://hdl.handle.net/1834/2385

Atlas hydrologique des eaux superficielles du Banc d'Arguin
Provedor de dados: 20
Autores: Ould Mahfoudh, M.; Dobrovine, B.; Ould Dedah, S.
Atlass hydrologique publié comme bulletin spécial
Tipo: Journal Contribution
Palavras-chave: Hydrology; Oceanographic atlases.
Ano: 1991
URL: http://hdl.handle.net/1834/518

Seychelles tuna bulletin : first quarter 1991
Provedor de dados: 20
The number of purse seiners vessels active in the Western Indian Ocean remained constant at 43 from January to March.  This represents a significant drop from last year 1st quarter average of 52 vessels. To date the fishing results appear to be better than those of the same period in 1990 with the catch rates being substantially higher.  Yellowing tuna made up 88% of the catch in January and February dropping down to 67% in March which is the expected trend during this time of the year.  The fishing pattern also followed a similar trend to previous years in that most vessels were active to the East of the Seychelles EEZ and moving South towards the Mozambique Channel in March.The total catch for purse seiners fishing in the Western Indian Ocean for 1990...
Tipo: Other
Palavras-chave: Purse seiners; Tuna fisheries.
Ano: 1991
URL: http://hdl.handle.net/1834/5186

Catalogue des ennemis naturels des macrophytes flottants Pistia stratiotes, Salvinia molesta et Eichhornia crassipes
Provedor de dados: 20
Autores: Sankaré, Yacouba.
Nous avons déterminé, à partir d'une étude bibliographique et de nos observations sur le terrain quarante deux espèces animales comprenant essentiellement des mollusques et des insectes. Ces animaux s'attaquent aux plantes flottantes Eichhornia crassipes, Pistia stratiotes et Salvinia molesta. Ils consomment ou détruisent indifféremment les plantes précitées sauf Neochetina bruchi, Neochetina eichhorniae et Sameodes albiguttalis qui s'attaquent spécifiquement à E. crassipes; Neohydronomus putchellus, Lanistes guinaicus et Pila africana broutent préférentiellement P. stratiotes; Cyrtobagous salviniae, Cyrtobagous singularis et Paulinia acuminata consomment uniquement S. molesta.
Tipo: Journal Contribution
Palavras-chave: Aquatic plants; Marine invertebrates; Predators.
Ano: 1991
URL: http://hdl.handle.net/1834/5740

IOC Training Course on Microcomputers and Management of Marine Data Centres of Spanish-speaking Countries in the Caribbean Region., Bogotá, Colombia, 21-30 October 1991.
Provedor de dados: 20
Supported by IOC for UNESCO.
Tipo: Report
Palavras-chave: Marine data.
Ano: 1991
URL: http://hdl.handle.net/1834/5599

Estudio comparativo de los pejerreyes marinos del área marplatense
Provedor de dados: 20
Autores: Hirt Chabbert, J.A.
Los pejerreyes son peces muy apreciados por el hombre, debido a la exquisitez de su carne. Habitan tanto las aguas dulces y salobres como las marinas. La gran semejanza entre todos ellos y su adaptabilidad a los diversos medios, son factores que hacen muy dificil la identificación específica. La mayoría de los ictiólogos que se han ocupado hasta ahora del tema en la Argentina, no han publicado los resultados de sus investigaciones, por 10 cual se cuenta con unos pocos trabajos antiguos (Berg, 1895; Devicenzi, 1924; Lahille 1929a, 1929b y 1930; Marrero, 1950) y claves recientes elaboradas sobre los datos provenientes de esos trabajos (Menni et al., 1984). Uno de los trabajos más nuevos y completos sobre las especies de aterinidos (Familia Atherinidae) del...
Tipo: Theses and Dissertations
Palavras-chave: Marine fish; Taxonomy; Animal morphology; Migrations; Geographical distribution; Taxonomy; Geographical distribution; Animal morphology; Http://aims.fao.org/aos/agrovoc/c_7631; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_421.
Ano: 1991
URL: http://hdl.handle.net/1834/2953

Concentrations en mercure dans les muscles de thon Albacores (Thunnus albacares) du Golfe de Guinée (1987-1988)
Provedor de dados: 20
Autores: Métongo, B.S.; Kouamenan, K.F.
Des échantillons de thons albacores (Thunnus albacares) pêchés dans l'Atlantique tropical Est ont été analysés en vue de la détermination de mercure dans les muscles blanc et rouge. Les résultats des dosages montrent qu'il n'y a pas de différence significative entre les teneurs en mercure dans les deux types de muscles. En outre, les concentrations observées dans le muscle blanc sont comparables à celles obtenues par Aldrin et al. en 1973. Il est donc probable que les concentrations de mercure observées soient liées à des phénomènes naturels plutôt qu'à des contaminations d'origine anthropogénique. A titre comparatif, trois échantillons d'espadons (Xiphias gladius) ont été également analysés. Les résultats montrent que les teneurs dans les muscles...
Tipo: Journal Contribution
Palavras-chave: Muscles; Heavy metals.
Ano: 1991
URL: http://hdl.handle.net/1834/5160

Du modele à la nature : l'exemple de la côte Togolaise
Provedor de dados: 20
Autores: Rossi, G.; Baritse, L.; Blivi, A.B.
La côte togolaise, basse et sableuse, soumise è une violente érosion par suite d'une série d'erreurs d'aménagements, a fait l'objet en 1987-1988 d'importants travaux destin's à protéger sur 15 km la ville d'Aného et l'usine de phosphates de Kpémé, principale industrie du pays. La préparation de ces travaux, de protection, rendus indispensables par la gravité des enjeux économiques et sociaux, a nécessité des études hydrologiques et sédimentologiques très détaillées, ainsi que la construction et l'exploitation par un bureau d'étude spécialisé de deux importants modèles physique (32 x 20 m) destinés à optimiser le dispositif de protection et à déterminer l'évolution du trait de côte sur une période de 25 ans...
Tipo: Other
Palavras-chave: Coastal zone; Sedimentology; Coastal erosion; Coastal erosion; Http://aims.fao.org/aos/agrovoc/c_9949.
Ano: 1991
URL: http://hdl.handle.net/1834/1228

Incidences de la modification de la circulation des eaux sur l'hydrochimie et le degré de contamination bactérienne d'un estuaire eutrophe tropical
Provedor de dados: 20
Autores: Guiral, Daniel; Kouassi, Aka Marcel; Arfi, Robert.
Pour contrôler la prolifération de la végétation aquatique flottante, en Côte d'Ivoire, une ouverture dans le cordon littoral a été pratiquée en septembre 1987 mettant ainsi en communication directe le fleuve Comoé avec l'océan. L'impact de cet aménagement sur l'hydrochimie (salinité, éléments nutritifs et biomasse chlorophyllienne)et le degré de contamination bactérienne a été étudié dans la zone proche du canal de Vridi. Avant la réouverture du grau de Bassam, les eaux du Comoé s'évacuaient dans l'océan par ce canal artificiel situé dans la ville d'Abidjan. L'étude comparative de deux cycles annuels en quatre stations avant (1985) et après (1987/88)l'ouverture du grau de Bassam (Analyses en Composantes Principales(ACP))est discutée en fonction des...
Tipo: Journal Contribution
Palavras-chave: Microbial contamination; Estuarine circulation.
Ano: 1991
URL: http://hdl.handle.net/1834/5259

A mothership dory fishing operation in Seychelles: results of the first voyage of the locally owned vessel Pecheur Breton, March - May 1991
Provedor de dados: 20
Autores: Mees, C. C.
A Mother ship dory fishing operation was conducted in Seychelles waters by the vessel Pecheur Breton and 11 catcher boats during 1991. This venture was carried out over a 72 day period from 2nd March 1991 to 14 May 1991 and 246 tonnes of fish were caught.
Tipo: Report
Palavras-chave: Demersal fisheries; Fishing operations; Mother ships; Catch/effort.
Ano: 1991
URL: http://hdl.handle.net/1834/5122

Reproduction de Ethmalosa fimbriata (Bowdich) en lagune Aby (Côte d'Ivoire)
Provedor de dados: 20
Autores: N'goran, Ya Nestor.
Ethmalosa fimbriata (Bowdich) est un clupeidé très abondant dans les pêcheries artisanales ivoiriennes. Il représente plus de 60% des captures lagunaires. En lagune Aby, la taille de première maturité sexuelle se situe à 9.6cm pour le mâle et 9.9cm pour la femelle. La reproduction a lieu deux fois dans l'année pendant les saisons à relativement haute salinité, de février à mai et de juillet à août. Cette reproduction n'affecte pas de façon significative le sex-ratio dont la moyenne varie de 35% à 36% selon la période. La fécondité absolue est très fluctuante et varie de 11.000 à 148.000 oeufs par femelle.
Tipo: Journal Contribution
Palavras-chave: Reproduction; Cycle sexuel; Sex-ratio; Fécondité.
Ano: 1991
URL: http://hdl.handle.net/1834/5060

Phytotoxicité du glyphosate sur la jacinthe d'eau (Eichhornia crassipes, Solms).
Provedor de dados: 20
Autores: Etien, N.; Kaba, N.; Guiral, D.
La toxicité de l'herbicide glyphosate a été testée sur des  échantillons de jacinthe d'eau (Eichhornia crassipes) mis en culture dans des aquariums en verre. La plus faible dose du produit (0.09g.m-2)entraîne une augmentation de la croissance pondérale des plantes. Les doses intermédiaires (0.18 et 0.36g.m-2) entraînent une diminution de cette croissance mais elles ont pour effet d'augmenter l'émission de stolons (reproduction végétative). Par contre, la dose de glyphosate égale à 0.72g.m-2 entraîne la destruction totale et irréversible des plantes.
Tipo: Journal Contribution
Palavras-chave: Plant control; Phytobenthos; Toxicity.
Ano: 1991
URL: http://hdl.handle.net/1834/5525

Variation in the physico-chemical features and phytoplankton of new Calabar river at Aluu, Rivers State, Nigeria.
Provedor de dados: 20
Autores: Erondu, E.S.; Chindah, A.C.
The physico-chemical features and phytoplankton community of the upper reaches of the New Calabar river at Aluu were studied at high and low water slacks for a period of 12 months. The water was acidic (pH 5.5 – 6.5) with low alkalinity (10 – 20mg CaCO3 L-1 and characteristically soft (total hardness ranging from 10 to 60mg CaCO3L-1).  There was obvious seasonal flux in the silica level, with dry season having higher values than wet season. The phytoplankton was predominated by the diatoms, which constituted more than 85% of the total phytoplankton population. The predominant taxa were Melosira sp. Tabellaria spp. Surirella spp. and Navicula spp. The phytoplankton density was significantly higher during the dry season than rainy season (Czekanowski’s...
Tipo: Report
Palavras-chave: Physicochemical properties; Phytoplankton; Phytoplankton; Physicochemical properties; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_13330.
Ano: 1991
URL: http://hdl.handle.net/1834/2441

Analyse des effets de l'ouverture du chenal de Grand Bassam (estuaire du fleuve Comoé, lagune Ebrié) sur la macrofaune benthique lagunaire.
Provedor de dados: 20
Autores: Sankaré, Y.; Etien, N.
Cet article présente les résultats d'une étude comparative de trois séries de prélèvements dans la zone proche du canal de Bassam avant, 6 mois et 20 mois après son ouverture en septembre 1987. Les effets constatés sont la diminution de l'abondance et la modification de la composition de la macrofaune benthique. Ces effets semblent de longue durée, sans reprise en ce qui concerne l'espèce la plus abondante, Corbula trigona. Les changements observés dans la structure des peuplements sont dus essentiellement à l'augmentation de la salinité, et à un degré moindre, aux modifications de la nature du sédiment.
Tipo: Journal Contribution
Palavras-chave: Benthos; Channels; Estuaries.
Ano: 1991
URL: http://hdl.handle.net/1834/5521

Contribution à l'étude des modifications hydro-sédimentaires consécutives à la réouverture artificielle de l'embouchure du Comoé à Grand-Bassam
Provedor de dados: 20
Autores: Koffi, K. Ph.; Abé, J.; Amon Kothias, J.B.
La réouverture artificielle du canal naturel du fleuve Comoé (22 septembre 1987)en vue de l'élimination en mer des plantes flottantes envahissantes, a modifié considérablement l'environnement hydro-sédimentaire du domaine lagunaire à Grand-Bassam. L'action des courants de marée a conféré un caractère plus estuarien aux eaux lagunaires, l'intrusion saline (25-30%0)remontant au delà des ponts de Moossou à la confluence du fleuve Comoé. Ceci a entraîné un curage du cours inférieur du fleuve et surtout des fonds lagunaires antérieurement confinés. La remobilisation des vases (des fonds autour de l'île Bouët), évacuées en suspension vers le large a découvert les faciès sableux lagunaires et marins. Ce nouveau système demeure fragile, par la suite d'un colmatage...
Tipo: Journal Contribution
Palavras-chave: River outflow; Hydrology.
Ano: 1991
URL: http://hdl.handle.net/1834/5149

Etude comparative de la macrofaune associée aux racines de Pistia stratiotes L. (Araceae) du lac de barrage d'Ayamé II et du fleuve Comoé (Côte d'Ivoire).
Provedor de dados: 20
Autores: Sankaré, Yacouba.
Les variations d'abondance des espèces de la macrofaune associée au racines de Pistia stratiotes du lac d'Ayamé II et du fleuve Comoé ont été étudiées durant un an. Les plantes ont été collectées mensuellement à la main au sein d'un quadrat de 1mètre carré de recouvrement.La biomasse de Pistia stratiotes est élevée et reste constante dans le lac d'Ayamé II quelle que soit la saison. Elle est variable dans le fleuve Comoé. Le dénombrement des organismes a permis de voir que l'abondance totale est plus élevée dans le fleuve Comoé que dans le lac d'Ayamé II.Elle es maximale en grande saison des pluies puis diminue pendant la petite saison sèche, la petite saison des pluies et la grande saison sèche.Durant cette dernière période elle augmente de nouveau dans...
Tipo: Journal Contribution
Palavras-chave: Macrobenthos; Rivers; Aquatic weeds.
Ano: 1991
URL: http://hdl.handle.net/1834/5526

Highlights of 1960-1990 : Achievements in the last 30 years by the Nigerian institute for oceanography and marine research and its parent research division of the federal departement of fisheries, Lagos
Provedor de dados: 20
Autores: Ajayi, T.O.
Before the Nigerian Institute for Oceanography and Marine Research was established in 1975, the Research division of the parent body carried out extensive resources surveys of the inshore waters (0-50m depth), identified and documented most of the Nigerian Marine and brackish water fish and shrimp resources. The promulgation of the Sea Fisheries Decree of 1971 was based on the research findings of the division which also initiated the biological study of the commercially important fishes. The research efforts of the division provided the first ever scientific information on the coastal oceanography of Nigeria. The possibility of a viable brackish water polyculture was also established at Buguma and Lagos....
Tipo: Report
Palavras-chave: Inshore waters; Freshwater fish; Shrimp fisheries; Coastal oceanography; Historical account.
Ano: 1991
URL: http://hdl.handle.net/1834/1185

Environmental Aspects of Economic Development in Sub-Saharn Africa
Provedor de dados: 20
Autores: Baytas, A.
Studies on the economies of Sub-Saharan Africa have generally neglected the links between economic growth and environmental quality. In many such studies, economics and ecology have been treated as mutually exclusive rather than complementary domains. The key to Sub-Saharan Africa's future is to achieve sustainable growth. This calls for replacing the traditional concept of growth based economic output alone with a new approach that stresses development through conservation of Africa's valuable natural resources of soil, water, forests and wildlife. Following the 1968-73 drought in the Sahel interest in both the economic development and the ecology of Sub-Saharan Africa has increased enormously. On the one hand, economists have used the word "crisis" with...
Tipo: Working Paper
Palavras-chave: Environmental conditions; Economic aspects; Http://aims.fao.org/aos/agrovoc/c_28861.
Ano: 1991
URL: http://hdl.handle.net/1834/562

Suivi cartographique de l'expansion des macrophytes envahissant le système lagunaire Ebrié (Côte d'Ivoire)
Provedor de dados: 20
Autores: Amon Kothias, J.B.; Guiral, D.; Sankaré, Y.; Kaba, N.; Etien, N.
Des cartographies par survol aérien ont été réalisées de décembre 1986 à septembre 1989pour décrire l'évolution saisonnière des macrophytes colonisant les eaux de surface du secteur oriental de la lagune Ebrié. Le couvert végétal de ce secteur lagunaire et des lagunes qui lui sont associées est essentiellement constitué de Eichhornia crassipes (jacinthe d'eau). Son expansion saisonnière est favorisée par la dessalure des eaux lagunaires due aux précipitations. Sa migration dans le milieu lagunaire est assurée par la crue du fleuve Comoé. L'ouverture du grau de Bassam a entraîné son élimination temporaire de la zone estuarienne nouvellement crée.
Tipo: Journal Contribution
Palavras-chave: Seafloor spreading; Cartography.
Ano: 1991
URL: http://hdl.handle.net/1834/5163

Manual on international oceanographic data exchange
Provedor de dados: 20
Autores: IOC.
Tipo: Other
Palavras-chave: Oceanography; Data acquisition; Data processing; Data transmission; Data collections; Oceanographic data; Data acquisition; Data processing; Http://aims.fao.org/aos/agrovoc/c_37344; Http://aims.fao.org/aos/agrovoc/c_10289.
Ano: 1991
URL: http://hdl.handle.net/1834/2847

The development of the lobster fishery in the Seychelles
Provedor de dados: 20
Autores: Bautil, B.R.R.
Two different groups of lobsters are of commercial importance in the Seychelles: spiny lobsters and slipper lobsters. The spiny lobsters are: Panulirus penicillatus, Panulirus longipes, Panulirus versicolor and Panulirus ornatus. Fishing for spiny lobster in Seychelles is a traditional activity in the shallow waters surrounding the main granitic Islands. Fishing is conducted at night by skin divers operating with lights. Following the development of the tourist industry during the seventies the local demand for lobsters increased to several tonnes a year. After being open for many years, the fishery was closed from 1983 to 1989. The fishery was reopen from December 1989 to May 1990, during which time an estimated 10 tonnes of spiny lobsters were supplied...
Tipo: Report
Palavras-chave: Fishery industry; Fishery development; Fishery data; Panulirus; Thenus orientalis.
Ano: 1991
URL: http://hdl.handle.net/1834/5120

Les macrophytes aquatiques des berges lagunaires
Provedor de dados: 20
Autores: Guiral, D.; Etien, N.
Cet article de synthèse décrit la composition et l'organisation des végétations colonisant les berges de la lagune Ebrié et fournit des données originales sur l'évolution récente de ces associations consécutivement à l'introduction accidentelle de 2 nouvelles espèces de macrophytes flottantes (Salvinia molesta et Eichhornia crassipes). Un historique de l'invasion de ces 2 espèces en Côte d'Ivoire est présenté et restitué dans un cadre plus général retraçant à partir d'un travail bibliographique l'expansion mondiale et plus spécifiquement africaine de ces 2 espèces. Une étude comparative des compositions chimiques (C,N,P)des 3 espèces de macrophytes aquatiques flottantes (Eichhornia crassipes, Salvinia molesta, Pistia stratiotes) colonisant la lagune Ebrié...
Tipo: Journal Contribution
Palavras-chave: Aquatic organisms.
Ano: 1991
URL: http://hdl.handle.net/1834/5165

Distribución de Clorofila-a frente a la costa ecuatoriana durante septiembre y diciembre de 1990
Provedor de dados: 20
Autores: Espinoza, J.; Maridueña, A.M.
Este trabajo describe la distribución tanto superficial como vertical de clorofila-a (Cl-a) durante los meses de septiembre y diciembre de 1990 y se discute la influencia de las condiciones oceanográficas sobre este pigmento fotosintético, como por ejemplo la presencia de una termoclima poco profunda, la posición del Frente Ecuatorial, así como la influencia de la escasez de precipitaciones pluviales sobre el estuario exterior del Golfo de Guayaquil. Todos estos factores favorecieron la presencia de valores estacionales relativamente altos de Cl-a exceptuando los valores bajos de la misma encontrados en el estuario exterior del Golfo de Guayaquil.
Tipo: Journal Contribution
Palavras-chave: Chlorophylls; Primary production; Biomass; Horizontal distribution; Vertical distribution; Primary production; Biomass; Chlorophylls; Http://aims.fao.org/aos/agrovoc/c_34329; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_1577.
Ano: 1991
URL: http://hdl.handle.net/1834/3107

Características químicas del mar ecuatoriano durante el período pre-invernal (septiembre-diciembre de 1990)
Provedor de dados: 20
Autores: Solórzano, L.; Suéscum, R.T. de.
La concentración de nutrientes en las aguas del Pacífico ecuatoriano durante el período pre-invernal de septiembre y diciembre de 1990 estuvo influenciada, principalmente, por el transporte estacional de aguas oceánicas de diferentes orígenes. La migración de los organismos acuáticos, los procesos biológicos de utilización y mineralización, la sedimentación de las partículas orgánicas a través de la columna de agua, y el drenaje continental, podrían haber influenciado, en menor proporción, las propiedades químicas del área. Durante el crucero llevado a cabo en los meses de septiembre y octubre de 1990, las aguas peruanas de mayor densidad y ricas en nutrientes fueron fácilmente observables a lo ancho del transecto del meridiano 82ºW. Por otro lado las...
Tipo: Journal Contribution
Palavras-chave: Chemical composition; Nutrients (mineral); Oceanographic data; Chemical composition; Http://aims.fao.org/aos/agrovoc/c_1794.
Ano: 1991
URL: http://hdl.handle.net/1834/3106

Marine information centre development: an introductory manual
Provedor de dados: 20
Tipo: Book
Palavras-chave: Marine Information Management; Information services; Information centres; Information handling; Information services; Http://aims.fao.org/aos/agrovoc/c_3865.
Ano: 1991
URL: http://hdl.handle.net/1834/2751

Seychelles Fishing Authority annual report 1990
Provedor de dados: 20
Autores: Anon.
Tipo: Book
Palavras-chave: Seychelles; TUNA FISHERIES; FISHERY DEVELOPMENT; ANNUAL REPORTS; Artisanal fishing; International cooperation; International cooperation; Http://aims.fao.org/aos/agrovoc/c_16378.
Ano: 1991
URL: http://hdl.handle.net/1834/1317

Etude préliminaire sur l'incorporation de liants dans un aliment composé pour poisson d'élevage en Côte d'Ivoire
Provedor de dados: 20
Autores: Slembrouck, J.; Cissé, A.; Kerdchuen, N.
L'alimentation artificielle constitue un aspect très important pour les poissons en élevage intensif. De ce fait, les qualités physiques et en particulier la stabilité à l'eau de l'aliment influencent grandement la production piscicole. Pour tenter de répondre à ces problèmes, une étude préliminaire sur la tenue à l'eau a été réalisée à la station expérimentale d'aquaculture de Layo. Ce travail a consisté à incorporer différents types de liants, disponibles en pays tropicaux, dans un aliment granulé en 3,5mm et 6mm de diamètres pour poissons, afin d'identifier un liant efficace permettant d'améliorer la stabilité à l'eau. Il ressort de cette expérience que l'utilisation de farine de blé (A1) donne des granulés d'excellentes qualités suivie du refus de...
Tipo: Journal Contribution
Palavras-chave: Mélanges.
Ano: 1991
URL: http://hdl.handle.net/1834/5125

Laws of Kenya: The Fisheries Act
Provedor de dados: 20
The Fisheries Act Commencement: 25th August, 1989 An Act of Parliament to provide for the development, management, exploitation, utilisation and conservation of fisheries and for connected purposes
Tipo: Working Paper
Ano: 1991
URL: http://hdl.handle.net/1834/297

Contribution à l'étude de la croissance de la fougère aquatique Salvinia molesta (Mitchell), Salviniaceae
Provedor de dados: 20
Autores: Etien, N.; Sankaré, Y.; Kaba, N.
La croissance des formes primaire (forme colonisatrice) et tertiaire (forme en "tapis dense") de la fougère d'eau Salvinia molesta (Salviniaceae) a été suivie pendant 60 jours dans des récipients de surface de 0.06m2 et contenant de l'eau douce. La croissance en fonction du temps de cette espèce est exponentielle. Les deux formes d'expansion présentent des taux de croissance statistiquement identiques. L'accroissement journalier moyen, exprimé en nombre de feuilles, est égal à 6,40% par jour pour la forme colonisatrice et à 5,90% par jour pour la forme en "tapis dense" avec des temps de doublement moyens équivalents à 10,78+_ 1.08 jours et à 11.64+_ 0,15 jours.
Tipo: Journal Contribution
Palavras-chave: Aquatic plants; Growth.
Ano: 1991
URL: http://hdl.handle.net/1834/5162

Les gastéropodes aquatiques associés aux plantes flottantes.
Provedor de dados: 20
Autores: Sankaré, Yacouba.
L'échantillonnage des gastéropodes effectué au niveau racinaire des plantes flottantes Pistia stratiotes, Salvinia molesta, Salvinia nymphellula, Eicchornia crassipes montre que celles-ci ne sont pas azoïques.On a récolté 18 espèces de gastéropodes.La cartographie des espèces collectées a permis d'identifier trois régions et trois types de peuplements de gastéropodes: -les gastéropodes rencontrés entre 5° et 7° au sud. -Les gastéropodes rencontrés entre 8° et 10° au nord. -Les gastéropodes à large répartition. La répartition des gastéropodes en relation avec la latitude a permis de voir que 90% des espèces se rencontrent entre 5° et 6°sud, 65% entre 6° et 7°sud, et 20% entre 7° et 8°, 20% entre 8° et 9° et enfin 15% entre 9°et 10°nord.
Tipo: Journal Contribution
Palavras-chave: Gastropod fisheries; Aquatic plants.
Ano: 1991
URL: http://hdl.handle.net/1834/5743

ICRISAT Report 1990
Provedor de dados: 30
Palavras-chave: Pigeonpeas; Chickpeas; Millets; Sorghum; Groundnuts; Genotypes; Hybrids; Tolerance; Intercropping.
Ano: 1991
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4095

Summary Proceedings of the Second ICRISAT Regional Groundnut Meeting for West Africa
Provedor de dados: 30
Palavras-chave: Groundnuts; Yield losses; Mycotoxins; Early maturation; Flours; Breeds (animals); Genotypes; Variety trials; Sole cropping.
Ano: 1991
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4091

Uses of Tropical Grain Legumes
Provedor de dados: 30
Palavras-chave: Crops; Pigeonpeas; Chickpeas; Flours; Amino acids; Soyfoods; Proteins; Legumes; Groundnuts.
Ano: 1991
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4088

Groundnut Virus Diseases in Africa
Provedor de dados: 30
Autores: International Crops Research Institute for the Semi-Arid Tropics (ICRISAT).
Palavras-chave: Groundnuts; Viruses; Genotypes; RNA; Quarantine; Breeds (animals); Genetic markers; Genes; Recessive genes; Resistance varieties.
Ano: 1991
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4093

Groundnut Elite Germplasm ICGV 87157 [ICG (FDRS) 4]
Provedor de dados: 30
Palavras-chave: Necrosis; Tolerance; Viruses; Groundnuts; Germplasm; Breeds (animals); Diseases; Fungi; Wet season; Minerals.
Ano: 1991
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3798

Growing chickpea in Eastern Africa
Provedor de dados: 30
Autores: HenkA.van.
Palavras-chave: Rhizobium; Root nodulation; Chickpeas; Seedbeds; Fungi; Fruits; Iron; Weeds; Diseases; Tropical zones.
Ano: 1991
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4241

Agricultural Research Networks As Development Tools
Provedor de dados: 30
Autores: International Crops Research Institute for the Semi-Arid Tropics (ICRISAT).
Palavras-chave: Participation; Assets; Entities; Grain legumes; Farming systems; Pigeonpeas; Farm inputs; Activities; Legumes.
Ano: 1991
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4092

Rhizobium Germplasm Resources at ICRISAT Center
Provedor de dados: 30
Autores: O.P.(Affl: ICRISAT, Patancheru 502 324, Andhra Pradesh, India. ).
Palavras-chave: Genetic soil types; Rhizobium; Pigeonpeas; Root nodulation; Germplasm; Chickpeas; Purity; Polysaccharides; Legumes; Altitude.
Ano: 1991
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4107

Groundnut Variety ICGV 87121 (ICGS 5)
Provedor de dados: 30
Palavras-chave: Oilseeds; Groundnuts; Viruses; Wet season; Summer; Germplasm; Yields; Performance; Cropping systems; Seasons.
Ano: 1991
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3797

Groundnut Variety ICGV 87160 [ICG(FDRS) 10]
Provedor de dados: 30
Palavras-chave: Necrosis; Viruses; Tolerance; Wet season; Groundnuts; Oilseeds; Germplasm; Humus; Minerals; Diseases.
Ano: 1991
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3799

The use of crop combinations in reducing
Provedor de dados: 30
Autores: K.G.K.
Palavras-chave: Soil degradation; Runoff; Watersheds; Land resources; Crops; Soil management; Investment; Precipitation; Solutions; Resources.
Ano: 1991
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3156

Farmers' Practices and Soil and Water Conservation Programs
Provedor de dados: 30
Autores: International Crops Research Institute for the Semi-Arid Tropics.
Palavras-chave: Watersheds; Bunding; Soil conservation; Soil degradation; Resource conservation; Participation; Land resources; Water harvesting; Subsidies; Moisture conservation.
Ano: 1991
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4094

Field diagnosis of chickpea diseases and their control
Provedor de dados: 30
Autores: Y.L.
Palavras-chave: Chickpeas; Fungi; Phoma; Vegetative stage; Mycoplasma; Necrosis; Diseases; Sowing date; Soil water content; Fruits.
Ano: 1991
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4248

Agroclimatology of Asian Grain Legumes Chickpea, Pigeonpea, and Groundnut
Provedor de dados: 30
Autores: S.M.
Palavras-chave: Pigeonpeas; Chickpeas; Groundnuts; Genetic soil types; Agroclimatic zones; Sole cropping; Land management; Fungi; Grain legumes.
Ano: 1991
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4089

Behaviour of heavy metals in a mud flat of the Scheldt estuary, Belgium
Provedor de dados: 27
Autores: Panutrakul, S.; Baeyens, W.F.J.
The Ballasplaat intertidal mud flat in the Scheldt estuary has been polluted by Cd and Pb and also high amounts of organic matter as a result of suspended matter deposition. The degree of pollution is, however, not uniform over the mud flat due to varying physico-chemical conditions (essentially variable redox profiles). Measurements of the redox profile, and the metal concentrations in the pore water, the total sediment and the fraction &lt;63 µm combined with sequential extraction results and enrichment factors can explain the behaviour of Cd, Pb, Fe and Mn in the sediments. In a strong anoxic sediment, where sulphate reducing bacteria are active, the heavy metals are trapped as poorly soluble metal complexes while in an oxic or suboxic sediment metals...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cadmium Chemical reactions Estuaries Iron Lead Manganese Marine pollution Mud flats Physicochemical properties Sediment chemistry Sediment pollution Sediments ANE; Netherlands; Westerschelde; Ballastplaat.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3112

Roles and potentials of &lt;i&gt;Artemia&lt;/i&gt; in coastal saltworks
Provedor de dados: 27
Autores: Sorgeloos, P.; Tackaert, W.
The recent developments in aquaculture production of fish and shrimp have resulted in increased demands for &lt;i&gt;Artemia&lt;/i&gt; cysts and biomass as valuable sources of life food. Solar salt works are suitable biotopes for the integrated exploitation of salt, &lt;i&gt;Artemia&lt;/i&gt; and eventually fish or shrimp. &lt;i&gt;Artemia&lt;/i&gt; may be present as a natural resource in local saltworks; however in some situations characteristics of the endemic strain might justify the introduction of another &lt;i&gt;Artemia&lt;/i&gt; species to increase productivity.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2861

Development of a lipid-enrichment technique for &lt;i&gt;Artemia&lt;/i&gt; juveniles produced in an intensive system for use in marine larviculture
Provedor de dados: 27
Autores: Dhont, J.; Lavens, P.; Sorgeloos, P.
Although there exists an obvious inclination to replace live larval food by formulated feeds, &lt;i&gt;Artemia nauplii&lt;/i&gt; are still essential in the larviculture of marine fish species. So far, on-grown &lt;i&gt;Artemia&lt;/i&gt; are rarely used in larviculture although they offer several advantages over &lt;i&gt;Artemia nauplii&lt;/i&gt;: e.g. they contain a higher individual protein and energy content thus improving the fish larvae's energy budget; an equal amount of live food is reached with far less individuals thus a considerable saving of &lt;i&gt;Artemia&lt;/i&gt; cysts; their composition of (n-3) highly unsaturated fatty acids (HUFA) may easily be improved by applying enrichment techniques. This study deals with the development of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish culture; Fish larvae; Food organisms; Intensive culture; Lipids; Nutritive value; Artemia.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2854

Manipulated yeast diets as a partial algal substitute for the nursery culture of the hard clam &lt;i&gt;Mercenaria mercenaria&lt;/i&gt;
Provedor de dados: 27
Autores: Coutteau, P.; Hadley, N.H.; Manzi, J.; Sorgeloos, P.
Rearing bivalve molluscs in commercial hatchery and nursery systems has so far relied on the production of live algae, which is costly and often unpredictable. Therefore the development of satisfactory artificial diet would greatly reduce the operating costs of bivalve operations. The development of techniques to improve the nutritional composition and digestibility of yeasts resulted in a product with great potential as a substitute for unicellular algae. Previous work on the Manila clam &lt;i&gt;Tapes semidecussata&lt;/i&gt; showed that replacing 80% of the algae by these manipulated yeasts resulted in growth rates of 64 to 93% in comparison with the growth rate obtained for the algal control. In the present study a standard culture test for evaluating...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clam culture; Diets; Feed composition; Feeding experiments; Food preferences; Hatcheries; Invertebrate larvae; Rearing.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2809

Revision of the Archimonocelididae (Platyhelminthes) Meixner, 1938
Provedor de dados: 27
Autores: Martens, P.M.; Schockaert, E.R.; Curini-Galletti, M.C.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7368

The use of API 20E for the identification of &lt;i&gt;Vibrio anguillarum&lt;/i&gt; and &lt;i&gt;V. ordalii&lt;/i&gt;
Provedor de dados: 27
Autores: Grisez, L.; Ceusters, R.; Ollevier, F.P.
Sixty-eight strains of &lt;i&gt;Vibrio anguillarum&lt;/i&gt;, five of &lt;i&gt;V. ordalii&lt;/i&gt; and the type strains of &lt;i&gt;V. alginolyticus, V. carchariae, V. damsela&lt;/i&gt; and &lt;i&gt;V. parahaemolyticus&lt;/i&gt; were compared using the API 20E gallery. Within the &lt;i&gt;V. anguillarum&lt;/i&gt; strains, distinct groups could be separated mainly on the basis of their reaction on indole production and the fermentation of amygdalin and arabinose. &lt;i&gt;Vibrio ordalii&lt;/i&gt;, the former &lt;i&gt;V. anguillarum&lt;/i&gt; biotope 2, could easily be separated from &lt;i&gt;V. anguillarum&lt;/i&gt; and from the other fish pathogenic &lt;i&gt;Vibrio&lt;/i&gt; spp.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacterial diseases; Disease control; Disease detection; Fish diseases; Identification; Vibrio carchariae; Vibrio ordalii; Vibrio alginolyticus; Vibrio anguillarum; Vibrio damsela; Vibrio parahaemolyticus.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2859

Variation in egg and larval quality in various fish and crustacean species
Provedor de dados: 27
Autores: Lavens, P.; Sorgeloos, P.
It is generally accepted, that a major constraint in the further development of marine fish and crustacean aquaculture, is the variable quality of eggs and larvae used for the hatchery-production of fry. Nonetheless, valid criteria to evaluate optimal egg quality have not been identified yet. Instead, particular indicators, are used, e.g. the fertilization and hatching rate, overall culture success during the first rearing period, etc., but these are not totally objective because hatchery-specific conditions may interfere. The biochemical composition of the egg may be one of the possible determinants of egg quality, which can be evaluated on a more objectie basis. In this respect, studied have been initiated to analyze in freshly-released eggs, the levels...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Biochemical composition; Crustacean culture; Eggs; Fatty acids; Fish culture; Hatcheries; Quality control; Vitamin C.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262328.pdf

A new test system for the evaluation of toxic levels of liposoluble products in the aquatic food chain using &lt;i&gt;Artemia&lt;/i&gt; and &lt;i&gt;Mysidopsis bahia&lt;/i&gt; as experimental animals
Provedor de dados: 27
Autores: Van Sprang, P.; Léger, P.; Sorgeloos, P.
A new test system is described for the evaluation of toxic levels of liposoluble products in the aquatic food chain using &lt;i&gt;Artemia&lt;/i&gt; and &lt;i&gt;Mysidopsis bahia&lt;/i&gt; (M.) as experimental animals. For this, freshly released juveniles (&lt;24h old) of &lt;i&gt;M. bahia&lt;/i&gt; are transferred to the experimental bioassay test system, cultured under standard conditions and fed 24h old purposely contaminated &lt;i&gt;Artemia&lt;/i&gt; nauplii. After 11 days, data on survival, reproductive characteristics, individual length and dry weight are recorded and treated statistically.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2910

Effect of dietary essential fatty acids on egg quality and larviculture success of the greasy grouper (&lt;i&gt;Epinephelus tauvina&lt;/i&gt; F.): preliminary results
Provedor de dados: 27
Autores: Dhert, P.; Lim, L.C.; Lavens, P.; Chao, T.M.; Chou, R.; Sorgeloos, P.
In spite of its aquaculture potential, the larval rearing of greasy grouper (&lt;i&gt;Epinephelus tauvina&lt;/i&gt;) remains problematic and is not yet commercially feasible. The low and unpredictable larval survival is due to difficulties encountered in spawning the broodstock, the small size of the larvae at first feeding, and the high sensitivity of the larvae until day 45. The nutritional requirements for the broodstock as well as for the young larvae are still enigmatical. In this presentation the impact of supplementing the highly unsaturated fatty acids (HUFA), eicosapentaenoic (EPA), and docosahexaenoic acid (DHA) to the broodstock and larval diets is illustrated.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diets; Fatty acids; Fish culture; Fish eggs; Fish larvae; Nutritional requirements; Survival.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2852

Marine chemistry
Provedor de dados: 27
Autores: Van Grieken, R.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2906

Crustacea Copepoda: &lt;i&gt;Amphicrossus pacificus&lt;/i&gt; gen. et sp. nov., an erebonasterid copepod (Poecilostomatoida) from the New Caledonian continental shelf
Provedor de dados: 27
Autores: Huys, R.
A new species of Erebonasteridae, Amphicrossus pacificus, is decribed on the basis of a single female from a depth of 155 m north of New Caledonia in the Grand Passage zone. The new species is closely related to Erebonaster spinulosus Humes and for that reason the latter is transferred to the new genus Amphicrossus. Differences in body ornamentation and armature of maxilla, maxilliped and P4 serve to distinguish Amphicrossus and Erebonaster. Other noticeable discrepancies are found in the structure of the rostrum, the shape of the thoracic epimera and the design of the fifth pair of legs. A peculiar structure, the "sensory area", is shown on the posterior surface of enp-2 P2 in both Amphicrossus species which can be differentiated from each other on the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New genera New species ISEW; New Caledonia.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/266847.pdf

Ecological modelling of the North Sea
Provedor de dados: 27
Autores: Fransz, H.G.; Mommaerts, J.-P.; Radach, G.
North Sea ecosystem models published in accessible literature are partitioned into groups with respect to their emphasis on significance and detail of different trophic levels of the ecosystem. These subsets are treated separately in the three main chapters, which deal with relationships with physical dynamics, lower trophic level interactions and higher trophic level interactions. They are preceded by chapters that introduce the scope of the models, the history of modelling approaches, main purposes and specific aims, general aspects of internal structure, and modelling techniques applied. The main chapters compare the process descriptions characteristic of the subsets of models, and discuss aims and results with emphasis on significance and contribution...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthos Ecosystem management Environmental effects Marine environment Models Nutrient cycles Plankton Predation Primary production Trophodynamic cycle ANE; North Sea.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262355.pdf

Cartographie du Middelkerke Bank: dynamique sédimentaire, structure géologique, facies sédimentaires
Provedor de dados: 27
Autores: Lanckneus, J.; De Moor, G.; Berné, S.; Chamley, H.; De Batist, M.; Henriet, J.-P.; Terwindt, J.; Trentesaux, A.
The paper analyses the first results obtained in the framework of the RESECUSED project (MAST) whose objectives are the detailed analysis of the behaviour of sediments and bedforms of and on the Middelkerke Bank (Belgian Continental Shelf) and the study of the interaction between water movement, sediment transport and bedform mobility. The results include a preliminary analysis of the residual bottom load transport paths deduced from side scan sonar registrations, a map of the sandwaves on the bank, the first grain-size results of the superficial sediment and a study on the internal structure of the bank.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bed forms; Continental shelves; Grain size; Granulometry; Sand waves; Sediment dynamics; Sediment transport; Shelf facies; Side scan sonar.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262327.pdf

Early fracturing of Palaeogene clays, southernmost North Sea: relevance to mechanisms of primary hydrocarbon migration
Provedor de dados: 27
Autores: Henriet, J.-P.; De Batist, M.; Verschuren, J.
Argillaceous petroleum source-rocks often show evidence of fracturing, which is considered to be an important factor for the primary migration of hydrocarbons. Several authors consider overpressuring of the enclosed pore fluids at great burial depths as a major factor for the generation of microfractures, through the mechanism of hydrofracturing. Various scales of fracture networks have been observed in Palaeogene clays which have never reached burial depths, greater than a few hundreds of meters. High-resolution seismic reflection investigations carried out in the southern North Sea have revealed large-scale fracturing patterns, confined to the London/Ieper clays. Equivalent deformation and microfracturing have been observed at outcrops on land.Field...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2798

Dry aerosol deposition over the North Sea estimated from aircraft measurements
Provedor de dados: 27
Autores: Rojas, C.; Otten, P.; Van Grieken, R.; Laane, R.W.P.M.
A mathematical approach based on the Monin-Obukhov similarity theory is used to predict the wind speed, friction velocity and drag coefficient, which are then introduced in the well-known deposition model of Slinn and Slinn (1980), to calculate the dry deposition of heavy metals into the North Sea. This model is perfectly suitable for aircraft sampling considering the fact that usually due to safety reasons, flights at the reference height used in deposition models (10m), are not possible. To check this approach, deposition velocities were calculated based on the airborne concentrations of Cu, Cd, Zn and Pb obtained by sampling with the aid of an aircraft over the Dutch continental shelf of the North Sea. Results are in agreement with those found in the...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262330.pdf

A revision of the genus &lt;i&gt;Laophontina&lt;/i&gt; Norman &amp; T. Scott (Copepoda, Harpacticoida)
Provedor de dados: 27
Autores: Fiers, F.
The genus &lt;i&gt;Laophontina&lt;/i&gt; is revised after re-examination of the typeseries of the species and analyses of new materials from the East African coast and the Caribbean. The genus &lt;i&gt;Laophontina&lt;/i&gt; as redefined herein unifies &lt;i&gt;L. dubia, L. acantha, L. noodti,&lt;/i&gt; and &lt;i&gt;L. posidoniae&lt;/i&gt;. The recently described &lt;i&gt;L. paradubia&lt;/i&gt; is considered as conspecific with &lt;i&gt;L. dubia&lt;/i&gt;. All other species presently assembled in the genus are allocated to different genera. &lt;i&gt;Galapalaophonte&lt;/i&gt; is redefined and comprises &lt;i&gt;G. pacifica, G. triarticulata&lt;/i&gt; and &lt;i&gt;G. variabilis&lt;/i&gt; besides four new species. &lt;i&gt;Laophontina distincta&lt;/i&gt; and...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/303518.pdf

Analysis of the nutritional condition of fish larvae: studies with &lt;i&gt;Clarias gariepinus, Coregonus lavaretus&lt;/i&gt; and &lt;i&gt;Scophthalmus maximus&lt;/i&gt;
Provedor de dados: 27
Autores: Segner, H.; Rösch, R.; Verreth, J.; Witt, U.
Among the environmental variables influencing the performance of fish larvae, the quantity and quality of food belong to the more important ones. Alterations of nutritional condition affect, apart from changing growth and survival, a number of structural and molecular parameters of the larvae. Particularly the absence of food has pronounced effects on histological features of, &lt;i&gt;e.g.&lt;/i&gt; the liver and the intestine, on activities of digestive proteolytic enzymes, as well as on RNA/DNA ratios. The starvation-related changes are similar for the larvae of totally different fish species, &lt;i&gt;e.g. Clarias gariepinus&lt;/i&gt;, a tropical freshwater species, the whitefish &lt;i&gt;Coregonus lavaretus&lt;/i&gt;, from temperate freshwaters, or...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2889

Diversity of nematode assemblages along a Mediterranean deep-sea transect
Provedor de dados: 27
Autores: Soetaert, K.; Heip, C.H.R.; Vincx, M.
The diversity of the nematode assemblages along a Mediterranean transect off Calvi, Corsica, Mediterranean Sea (depth range 160 to 1220 m) was very high. There was no clear trend in species diversity with station depth, and diversity at the station located on the continental shelf was not markedly lower than that at the deep-sea stations. However, diversity decreased with increasing depth into the sediment. As with the macrofauna, nematode assemblages in the Mediterranean is explained by a slight dominance of some species, while no species are dominant in the Bay of Biscay. Generic (between-genus) diversity was much higher than the average species diversity within genera, indicating that the high overall species diversity was not caused by large numbers of...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2892

A 4-years' analysis of the meiofauna community of a dumping site for TiO&lt;sub&gt;2&lt;/sub&gt;-waste off the Dutch coast
Provedor de dados: 27
Autores: Smol, N.; Huys, R.; Vincx, M.
Sublittoral meiofauna of 24 stations was monitored over 4 years (1984-1987) in and around a dumping site for TiO&lt;sup&gt;2-&lt;/sup&gt; acid waste in the Southern Bight of the North Sea off the Dutch coast. The meiofauna was examined quantitatively and qualitatively with special reference to the nematode and the copepod community structure down to species level and to the trophic structure of the nematodes. Biological, sedimentological, geographical parameters and the concentration of several heavy metals were subject to multivariate statistical analysis and classification techniques to evaluate the impact of the TiO&lt;sup&gt;2-&lt;/sup&gt; dumping activities. The meiofauna is dominated by nematodes, copepods, gastrotrichs and turbellarians. There is a...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2890

Production of &lt;i&gt;Artemia&lt;/i&gt; in culture tanks
Provedor de dados: 27
Autores: Lavens, P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2878

The effect of dietary phosphatidylcholine in postlarval penaeid shrimp: 2. Preliminary culture results
Provedor de dados: 27
Autores: Tackaert, W.; Camara, M.R.; Sorgeloos, P.
Although dietary phospholipids (PL) and particularly phosphatidylcholine (PC) have been found to enhance growth and survival in penaeid shrimp, precise requirements have yet to be established. Substantially variable responses of feeding PL have been noticed in crustaceans in relation to the growth stage of the animals and the composition of the other dietary ingredients. In several shrimp feeding trials phospholipids of unspecified composition, have been used, such as crude lecithin, as a result of which it is difficult to draw conclusions with regard to the optimal levels/types of dietary PL required by penaeid shrimp. This paper is part of a broad study which aims to assess the dietary effect of different levels/types of purified PL in marine fish and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Penaeus japonicus [Kuruma shrimp].
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2901

Debate. Preliminary results of seismic reflection investigations and associated geophysical studies in the area of the Antarctic Peninsula; Discussion and Reply for the GRAPE Team
Provedor de dados: 27
Autores: Henriet, J.P.; Bialas, J.; Meissner, R.; Larter, R.D.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2791

The meiobenthos along a Mediterranean deep-sea transect off Calvi (Corsica) and in an adjacent canyon
Provedor de dados: 27
Autores: Soetaert, K.; Heip, C.H.R.; Vincx, M.
Meiobenthos densities (excluding hard-shelled Foraminiferans) were compared along a Mediterranean deep-sea transect off Calvi (Corsica) and in an adjacent canyon. Chloroplastic Pigment Equivalent values (CPE) provided an estimate of the amount of primary production reaching the bottom.The stations along the transect were characterized by a low CPE content of the sediment, decreasing with increasing station depth. CPE values in the canyon were much higher, which probably resulted from import of material from the adjacent bay of Calvi. Similarly, meiobenthos densities along the transect were much lower than at comparable depths along the canyon.Meiobenthos density was significantly and positively correlated with CPE values.Nematodes were the most abundant...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2893

Distribution of benthic diatom assemblages in the Westerschelde (Zeeland, The Netherlands)
Provedor de dados: 27
Autores: Sabbe, K.; Vyverman, W.
The benthic diatom assemblages of the Westerschelde-estuary were studied by means of multivariate analysis. Two main groups and eight subgroups were distinguished. The relation with salinity and sediment composition was investigated. A clear relation between grain size and the distribution of the assemblages was found.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthos Diatoms Geographical distribution ANE; Netherlands; Westerschelde.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262331.pdf

State of the art in larviculture of fish and shellfish
Provedor de dados: 27
Autores: Sorgeloos, P.; Lavens, P.; Léger, P.; Tackaert, W.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2897

Preliminary results of the influence of organic matters on the growth of &lt;i&gt;Prorocentrum lima&lt;/i&gt;
Provedor de dados: 27
Autores: Sohet, K.; Schoemann, V.; Houvenaghel, G.
The growth of &lt;i&gt;Prorocentrum lima&lt;/i&gt;, a toxic algae producing okadaic acid, has been followed in culture media with a variety of organic enrichments obtained from soils and composts of different origins. Two strains were studied and did not respond in the same way to the enrichments. Each strain also responds differently to each type of enrichment. Compost extracts, rich in organic matters, induce faster growth (growth rate 0.07/day) than extracts of soils poor in organic matter (growth rate 0.016/day). Such findings may contribute to explain the mechanisms inducing or triggering bloom developments which occur in neritic and coastal waters where terrigenous run-off mostly influences the organic content of seawater.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2895

The effect of dietary salt (NaCl) supplementation on the growth, survival and food conversion rate of African catfish (&lt;i&gt;Clarias gariepinus&lt;/i&gt; B.) larvae
Provedor de dados: 27
Autores: Zamal, H.; Maithya, J.; Pector, R.; Ollevier, F.P.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2917

1971-1991: twenty years of marine ecology
Provedor de dados: 27
Autores: Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2862

Contributions to the study of the comparative morphology of teeth and other relevant ichthyodorulites in living supraspecific taxa of Chondrichtyan fishes. Part A. Selachii: 2c. Order: Carcharhiniformes. Families: Proscylliidae, Hemigaleidae, Pseudotriakidae, Leptochariidae and Carcharhinidae
Provedor de dados: 27
Autores: Herman, J.; Hovestadt-Euler, M.; Hovestadt, D.C.
The description of micro-teeth within the Carcharhiniformes is hereby completed by presentation of generic representatives for the remaining families Proscylliidae, Hemigaleidae, Pseudotriakidae, Leptochariidae and Carcharhinidae. Detailed descriptions of the tooth morphology are given, as well as SEM-photographs. The tooth morphology of the genera herein concerned is compared with those published of the other carcharhiniform families in two previous issues of this series, in order to elucidate the interrelationships within this shark order also from an odontological point of view. The dental histology for the carcharhiniform genera is commented on, and their dental vascular types are re-examined. The results are summarized in a differential diagnosis for...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/294443.pdf

Spatiotemporal variability of inorganic nitrogen stocks and uptake fluxes in the Scotia-Weddell Confluence area during November and December 1988
Provedor de dados: 27
Autores: Goeyens, L.; Sörensson, F.; Tréguer, P.; Morvan, J.; Panouse, M.; Dehairs, F.A.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/279127.pdf

Biological management to improve &lt;i&gt;Artemia&lt;/i&gt; and salt production at Tanggu saltworks in the P.R. China
Provedor de dados: 27
Autores: Tackaert, W.; Sorgeloos, P.
The worldwide distribution of the brine shrimp &lt;i&gt;Artemia&lt;/i&gt; , in a variety of isolated biotopes with different ecological conditions, has resulted in the evolution of many geographical strains. Among these strains, substantial differences have been demonstrated in their nutritional quality and fitness, providing a basis for the selection of strains suitable for aquaculture. The Tanggu Saltworks (Tianjin, China) provide a unique environment for the production of &lt;i&gt;Artemia&lt;/i&gt; . Unlike most other biotopes, they are characterized by a high primary productivity providing abundant food to sustain large populations of &lt;i&gt;Artemia&lt;/i&gt; . Both laboratory studies and field observations, however, indicate that the local...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2903

Marine physics
Provedor de dados: 27
Autores: Pichot, G.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2885

PCBs and organochlorine pesticides in phytoplankton and zooplankton in the Indian sector of the Southern ocean
Provedor de dados: 27
Autores: Joiris, C.R.; Overloop, W.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6888

Effect of hydrogen ions and inorganic complexing on the uptake of copper by the brine shrimp &lt;i&gt;Artemia franciscana&lt;/i&gt;
Provedor de dados: 27
Autores: Blust, R.; Fontaine, A.; Decleir, W.
The effect of hydrogen ions and inorganic complexing on copper uptake in the brine shrimp &lt;i&gt;Artemia franciscana&lt;/i&gt; has been studied in chemically defined saltwater solutions. Uptake increases with decreasing hydrogen ion concentration and decreases with increasing carbonate complexation. A simple non-linear model that combines the effect of hydrogen ions on the transport of the metal across the solution-body interface and the effect of hydrogen ions and complexation on the speciation of the metal provided a close functional description of the observed variation in copper uptake by brine shrimp.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioaccumulation Carbonates Hydrogen ions Ingestion Salinity effects Artemia franciscana USA; Utah; Great Salt L.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/135218.pdf

(n-3) HUFA composition of freshly spawned eggs from European seabass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt;), seabream (&lt;i&gt;Sparus aurata&lt;/i&gt;) and red seabream (&lt;i&gt;Pagrus major&lt;/i&gt;) collected in different hatcheries
Provedor de dados: 27
Autores: Komis, A.; Léger, P.; Sorgeloos, P.
The biochemical composition of fish eggs is often used as an indicator for assessing the nutritional requirements of aquaculture species during their larval stages. Fatty acids of the (n-3) HUFA type have proven to play a critical role in providing good growth, survival and stress resistance in marine fish larvae. Hence, analyzing these fatty acids in fish eggs may provide interesting data on the requirements for those essential nutrients. By comparing the analyses of wild versus broodstock fish eggs differences may appear, possibly explaining differences in egg quality. Intra-spawning-season differences may further appear by following fatty acid profiles in the course of time. Finally, the influence of broodstock nutritionon egg composition may be another...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Comparative studies; Fatty acids; Fish culture; Fish eggs; Hatcheries; Induced breeding; Dicentrarchus labrax [Bass]; Pagrus major; Sparus aurata [Gilthead].
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262325.pdf

On &lt;i&gt;Klieopsis&lt;/i&gt; n. gen., with a description of &lt;i&gt;Cypridopsis horai&lt;/i&gt; Klie, 1927 (Crustacea, Ostracoda)
Provedor de dados: 27
Autores: Martens, K.; Meisch, C.; Marmonier, P.
&lt;i&gt;Klieopsis&lt;/i&gt; n. gen. is here described to comprise the species &lt;i&gt;Cypridopsis horai&lt;/i&gt; Klie, reported from India. The new genus is characterized by an aberrant inner list on the RV, by a furca with a cylindrical trunk and by the reduction of two claws (G2 and Gm) on the A2 to short setae. After re-examination of the type materials, &lt;i&gt;Cypridopsis caerulescens&lt;/i&gt; Klie from Kenya is synonymized with &lt;i&gt;K. horai&lt;/i&gt;, which is here furthermore reported for the first time from Israel (surroundings of the Dead Sea). The latter specimens are extensively described, and a discussion on the taxonomic position of the new genus is offered. An apparently similar species from Sardegna, &lt;i&gt;Cypridopsis...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/303487.pdf

The nature and significance of gas-generated microvoids as 'secondary' microfabric features in modern and Pleistocene marine and estuarine sediments
Provedor de dados: 27
Autores: Wartel, S.; Parvingher Singh, S.; Faas, R.W.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sediment analysis.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3119

Tantulocarida (Crustacea: Maxillopoda): a new taxon from the temporary meiobenthos
Provedor de dados: 27
Autores: Huys, R.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7224

Semi-intensive culturing in fertilized ponds
Provedor de dados: 27
Autores: Tackaert, W.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2905

Successful application of a new combined culture and enrichment diet for the mass cultivation of the rotifer &lt;i&gt;Brachionus plicatilis&lt;/i&gt; at commercial hatchery scale in Monaco, Yugoslavia, France and Thailand
Provedor de dados: 27
Autores: Komis, A.; Candreva, P.; Franicevic, V.; Moreau, V.; Van Ballaer, E.; Léger, P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachionus plicatilis Müller; 1786.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262324.pdf

An &lt;i&gt;r&lt;/i&gt;-strategist in Antarctic pack ice
Provedor de dados: 27
Autores: Bergmans, M.; Dahms, H.-U.; Schminke, H.K.
The Antarctic copepod &lt;i&gt;Drescheriella glacialis&lt;/i&gt;, an inhabitant of sea ice, is the first polar invertebrate metazoan to have been cultured throughout its life cycle. We describe its demographic characteristics on the basis of a laboratory cohort study and correlative field data. When compared to its closest temperate zone relatives, &lt;i&gt;D. glacialis&lt;/i&gt; shows temperate compensation of developmental and reproductive rates. A genuine &lt;i&gt;r&lt;/i&gt;-strategist in every respect, it does not fit established trends for Antarctic invertebrates but appears well adapted to the peculiar spatio-temporal variability.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polar waters Population structure Reproduction Reproductive cycle Sea ice Temperature effects Copepoda [copepods] Drescheriella glacialis PS; Antarctica PSW; Weddell Sea.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3111

Salt, &lt;i&gt;Artemia&lt;/i&gt; and shrimp: integrated production in the People's Republic of China: the Tang Gu saltworks
Provedor de dados: 27
Autores: Tackaert, W.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2904

Developments in sea floor research
Provedor de dados: 27
Autores: De Moor, G.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2835

Liquid chromatographic determination of efficacy of incorporation of trimethoprim and sulfamethoxazole in brine shrimp (&lt;i&gt;Artemia&lt;/i&gt; spp.) used for prophylactic chemotherapy of fish
Provedor de dados: 27
Autores: Nelis, H.; Léger, P.; Sorgeloos, P.; De Leenheer, A.P.
The brine shrimp &lt;i&gt;Artemia&lt;/i&gt; , an excellent live food source in aquaculture, has been studied as a carrier to deliver selected chemotherapeutic agents to fish for prophylactic treatment of infectious diseases. To monitor the efficiency of incorporation of trimethoprim and sulfamethoxazole in &lt;i&gt;&lt;i&gt;Artemia&lt;/i&gt; franciscana&lt;/i&gt;, a sensitive and specific analytical method was developed. It is based on homogenization of &lt;i&gt;Artemia&lt;/i&gt; nauplii in methanol, extraction of lipids with hexane, solid-phase cleanup on C&lt;sub&gt;18&lt;/sub&gt; cartridges, and reversed-phase liquid chromatography with detection at 210 nm. The method is sensitive (detection limit, on the order of 3 µg/g with a sample quantity of 30 mg...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Fish culture; Infectious diseases; Medicine; Artemia.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262329.pdf

Temporal and spatial structure in the hyperbenthic community of a shallow coastal area and its relation to environmental variables
Provedor de dados: 27
Autores: Hamerlynck, O.; Mees, J.
Monthly sampling with a sledge type gear at 24 stations in the shallow coastal area in front of the Dutch Delta (southern bight of the North Sea) shows that high densities of a variety of animals are present in the lower 1 m of the water column: the hyperbenthos. Hyperbenthic community structure is strongly dominated by seasonal fluctuations due to the sequential appearance, high abundance and disappearance of the different species of temporary hyperbenthos. In winter and early spring, when the community is dominated by its permanent residents, spatial patterns emerge. Averaged over the year, these spatial patterns are consistent with the hydrodynamic regime in the system. Sedimentation of silt occurs in the same sheltered areas where the highest biomass...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2699

The effect of dietary phosphatidylcholine in postlarval penaeid shrimp: 1. Diet preparation
Provedor de dados: 27
Autores: Tackaert, W.; Camara, M.R.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2900

A new species of the genus &lt;i&gt;Pontocypria&lt;/i&gt; (Crustacea, Ostracoda), commensal of a lamellariid gastropod
Provedor de dados: 27
Autores: Wouters, K.
&lt;i&gt;Pontocypria coriocellae&lt;/i&gt; sp. n. is described from Papua New Guinea. The species was found inside the oral tube near the radula, of &lt;i&gt;Coriocella nigra&lt;/i&gt; Blainville, 1824 (Gastropoda, Prosobranchia, Lamellariidae). Because of its morphology and its mode of life, the new species may be considered as an occasional commensal of its gastropod hosts. It is the first &lt;i&gt;Pontocypria&lt;/i&gt; species to be found inside its host. The distribution of the genus &lt;i&gt;Pontocypria&lt;/i&gt; is discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New species.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/254784.pdf

HUFA levels in eggs of wild and cultured broodstock of &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt;
Provedor de dados: 27
Autores: Lavens, P.; Piyatiratitivorakul, S.; Menasveta, P.; Sorgeloos, P.
The variation in egg quality, i.e. the potential of the egg to produce viable fry, is still a limiting factor in the commercial production of marine fish and crustacean fry. Better knowledge in this field would contribute to improved and especially more consistent hatchery outputs and to the development of more suitable broodstock diets. So far, objective criteria to evaluate egg quality are scarce. However, it is very likely that the nutrient composition of the eggs may be a good indicator for egg viability as it reflects the nutrient demands of the developing embryo and larva. Since (n-3) highly unsaturated fatty acids (HUFAs) have been identified as essential nutrients for the larvae of marine fish, shrimp and prawn a case study has been initiated with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biochemical composition; Brood stocks; Comparative studies; Eggs; Fatty acids; Prawn culture; Shrimp culture; Macrobrachium rosenbergii.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2876

A new artificial diet for the early weaning of seabass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt;) larvae
Provedor de dados: 27
Autores: Devresse, B.; Candreva, P.; Léger, P.; Sorgeloos, P.
The weaning of marine fish larvae is a critical step in larval rearing. The successful transition from live food to an artificial feed depends among others on the quality of the dry feed used (e.g. freshness of ingredients, digestibility, quality of the formulation) and the larvae themselves (e.g. age, behaviour towards artificial diets, development of the digestive tract, efficiency of certain metabolic pathways). The present study shows the results obtained with a new artificial diet formulated for the weaning phase of marine fish larvae (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt;) in commercial hatcheries.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial feeding; Feed composition; Fish culture; Fish larvae; Hatcheries; Dicentrarchus labrax [Bass].
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262322.pdf

Ensiled &lt;i&gt;Artemia&lt;/i&gt; biomass: a promising and practical feed for penaeid shrimp postlarvae
Provedor de dados: 27
Autores: Abelin, P.; Tackaert, W.; Sorgeloos, P.
Unlike &lt;i&gt;Artemia nauplii&lt;/i&gt; which are used extensively as convenient live feed in aquaculture, large-scale utilization of &lt;i&gt;Artemia&lt;/i&gt; juveniles and adults (biomass) is still very limited and in most cases restricted to those operations which are located near an &lt;i&gt;Artemia&lt;/i&gt; production site. Currently applied techniques for preservation of &lt;i&gt;Artemia&lt;/i&gt; biomass (e.g. blast-freezing or drying) are often cost prohibitive and in several cases not applicable at the remote and scattered sites where the &lt;i&gt;Artemia&lt;/i&gt; biomass is available. An inexpensive technique which can be readily applied under field conditions and allowing to stabilize and retain the nutritional quality of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crustacean larvae; Developmental stages; Feed composition; Feed preparation; Food organisms; Shrimp culture; Artemia.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2800

Anatomy and ultrastructure of the proboscis in &lt;i&gt;Mesorhynchus terminostylis&lt;/i&gt; (Platyhelminthes, Rhabdocoela)
Provedor de dados: 27
Autores: De Vocht, A.
The ultrastructural organization of the proboscis in Mesorhynchus terminostylis is distinctly different from that in other members of the Polycystididae in which it is currently classified. The sheath epithelium is formed by three belts, all with intra-epithelial nuclei. The apical belt of the bipartite cone epithelium has a single intrabulbar nucleus, and the basal belt possesses five insunk nucleiferous cell parts behind the bulb. Six types of glands surface through the epithelia; the three types emerging through the cone epithelium can be homologized with those described for Polycistis naegelii. Only uniciliary receptors are found in the epithelium. The musculature in the bulb has a very loose appearance, and the bulbar septum appears to be a bipartite...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262354.pdf

Integrated coastal research in the SW Netherlands
Provedor de dados: 27
Autores: Mulder, J.P.M.; Louters, T.; Hallie, F.; Postma, R.; Craeymeersch, J.A.; Hamerlynck, O.
The geomorphological and ecological response of the ebb tidal deltas of the SW Netherlands to implementation of the Delta Project during the last decades, has been the subject of an integrated research project. General observed geomorphological trends are: erosion of the delta fronts and of the relic tidal bars in the landward parts of the deltas, and sedimentation in the tidal channels and in longshore bars at the edges of the deltas. Ecologically, a general trend towards richer benthic fauna communities is observable. The integrated approach in coastal research combining geomorphological analysis of field data with numerical modelling, and integrating hydraulic, geomorphological, sedimentological and biological data, has appeared very promising. Progress...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/300799.pdf

Suspended barite as a tracer of biological activity in the Southern Ocean
Provedor de dados: 27
Autores: Dehairs, F.A.; Stroobants, N.; Goeyens, L.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10145

Particulate trace metals above the Southern Bight of the North Sea: 1. Analytical procedures and average aerosol concentrations
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Dedeurwaerder, H.
Heavy metal concentrations in total particulate suspended matter and size fractionated particulate suspended matter above the Southern Bight of the North Sea have been assessed. Most of the samples were collected from a light vessel; the total sampling period covered about 70 days at sea. Stringent precautions were taken during sampling, storage, handling and analysis of the samples. As a conclusion, we found that on a long-term basis the aerosol concentrations above the North Sea have a fairly homogeneous composition, but short-term variations probably resulting from point emissions were observed. The cascade impactor results indicated that Pb, Cu, Cd and Zu were carried by submicrometer aerosols, Na, Fe, Mn and Al by supermicrometer aerosols. Most of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerosols Air pollution Atmospheric particulates Meteorology Seasonal variations Statistical analysis Trace metals Troposphere Winds ANE; North Sea; Southern Bight.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3106

Particulate trace metals above the Southern Bight of the North Sea: 2. Origin and behaviour of the trace metals
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Dedeurwaerder, H.
Ninety-six aerosol samples were collected in all seasons and wind conditions in the troposphere of the Southern Bight of the North Sea. About one third of these samples were collected with a six stage cascade impactor sampler. Considering that in each sample metals were analyzed, the data set we had to handle consisted of about 2000 results. In addition, wind directions and wind speeds are also included in this data set. To interpret all these results, we relied upon two methods: (1) enrichment factors were calculated and allowed us to identify some of the metal sources; (2) three factors resulted from a multivariate analysis method: in the first factor we only find Na, representing the marine component; the second factor includes Al (a crustal and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerosols Air pollution Atmospheric particulates Meteorology Seasonal variations Statistical analysis Trace metals Troposphere Winds ANE; North Sea; Southern Bight.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3109

Chemical characterization and source apportionment of individual aerosol particles over the North Sea and the English Channel using multivariate techniques
Provedor de dados: 27
Autores: Xhoffer, C.; Bernard, P.; Van Grieken, R.; Van der Auwera, L.
More than 25,000 individual aerosol particles in 51 particulate matter samples, all taken from a research vessel over the North Sea and the English Channel, in a time range of 4 years, were analyzed by automated electron probe X-ray microanalysis (EPXMA). Multivariate methods were used to reduce the total data set. Single-particle analysis combined with hierarchical cluster analysis yields nine major particle types. The North Sea aerosol is predominantly composed of sea salt, sulfur-rich particles, silicates and calcium sulfate particles. Their abundance is dependent on meteorological conditions and sample location. Differences between all samples were studied on the basis of the abundance variations by using principal component analysis. Three factors...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2915

Ammonium regeneration in the Scotia-Weddell Confluence area during spring 1988
Provedor de dados: 27
Autores: Goeyens, L.; Tréguer, P.; Lancelot, C.; Mathot, S.; Becquevort, S.; Morvan, J.; Dehairs, F.A.; Baeyens, W.F.J.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/279128.pdf

Ecology of free-living marine nematodes in the Voordelta (Southern Bight of the North Sea): 2. Habitat preferences of the dominant species
Provedor de dados: 27
Autores: Vanreusel, A.
The habitat preferences of the 50 dominant nematode species from the Voordelta (Southern Bight of the North Sea) were studied in relation to the sediment composition. For the stenotopic species the size of the silt fraction is often a limiting factor. Most eurytopic species are characterized by an affinity for silty or heterogeneous sediments. The habitat preferences of most of the species are similar to their distribution in other areas that have been studied. Where this is not so, factors other than the sediment composition (e.g. pollution) might be responsible for a shift in the distribution of species along the environmental gradients.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7797

Palatability enhancing nutrients for the European eel, &lt;i&gt;Anguilla anguilla&lt;/i&gt; L.
Provedor de dados: 27
Autores: Pacolet, W.; Reynders, K.; Ollevier, F.P.
Feeding experiments with European glass eels &lt;i&gt;Anguilla anguilla&lt;/i&gt; L. demonstrated a high degree of attractiveness for the natural diets Tubifix and cod roe. Previous experiments had indicated that incorporation of bovine spleen and/or blood into paste feeds significantly improved the growth rate and survival. To increase feed consumption, the effect of some basic components available from the current generation of chemo-attractants were evaluated. Using a modified Omission Test Procedure, we focused on monosodiumglutamate, betaine, the nucleotides IMP and GMP, and fractions of cattle blood. These components were incorporated into non-attractive casein-based test diets and administered following standardized procedures to intensively...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feed composition; Fish culture; Food additives; Food consumption; Food organisms; Nutritive value; Organoleptic properties.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2884

Algues marines nouvelles pour la Côte du Boulonnais ( Pas-de-Calais, France), 4
Provedor de dados: 27
Autores: Coppejans, E.
&lt;i&gt;Enteromorpha pseudolinza&lt;/i&gt; was already collected in 1984 along the coast of the Boulonnais; &lt;i&gt;Ceramium recissum&lt;/i&gt; in 1974, '78, '81 and '90. The first observations of &lt;i&gt;Enteromorpha radiata&lt;/i&gt; and &lt;i&gt;Aglaothamnion hookeri&lt;/i&gt; in this region were only done in 1990. 11 &lt;i&gt;Enteromorpha&lt;/i&gt; spp., 3 &lt;i&gt;Aglaothamnion&lt;/i&gt; spp. and 6 &lt;i&gt;Ceramium&lt;/i&gt; spp. are known from the northern French coast. These newly observed species are described and illustrated; completed identification keys are added.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Geographical distribution Rhodophyta [red algae] ANE; France.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2806

The future of population and molecular genetics of marine organisms: capita selecta
Provedor de dados: 27
Autores: Volckaert, F.A.M.J.; Beullens, K.; Ollevier, F.P.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2902

Marine aquaculture in Flanders
Provedor de dados: 27
Autores: Ollevier, F.P.; Lavens, P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2882

Transformation, concentrations and deposition of North Sea aerosols
Provedor de dados: 27
Autores: Otten, P.
In this work, attention was focused on the lower troposphere above the North Sea. It is well known that the marine atmosphere acts as a source, a sink and a reaction reservoir for various chemical constituents. In the past 15 years it has become clear that the atmosphere above the North Sea can be an important source of pollutants for the sea. In chapter 1, the sampling of marine aerosols with a cascade impactor was studied with regard to the possible interaction between particles collected on an impaction surface and reactive gaseous atmospheric components that are drawn through the impactor . NaCI particles, generated by pneumatic nebulisation of a NaCI solution, were collected on an impaction plate of a cascade impactor . After passing through the...
Tipo: Info:eu-repo/semantics/doctoralThesis
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/226615.pdf

Effects of pollutants on life-history parameters of the marine nematode &lt;i&gt;Monhystera disjuncta&lt;/i&gt;
Provedor de dados: 27
Autores: Vranken, G.; Vanderhaeghen, R.; Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7237

Use of &lt;i&gt;Artemia&lt;/i&gt; as a food source for aquaculture
Provedor de dados: 27
Autores: Bengtson, D.A.; Léger, P.; Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2803

Live-food mediated drug delivery as a tool for disease treatment in larviculture: 2. A case study with European seabass
Provedor de dados: 27
Autores: Chair, M.; Romdhane, M.S.; Dehasque, M.; Nelis, H.; De Leenheer, A.P.; Sorgeloos, P.
The purpose of this study is to investigate the possibility of oral delivery of the antibiotics Trimethoprim (TMP) and Sulfamethoxazole (SMX) to marine fish larvae through incorporation of these antibiotics into the live food organism &lt;i&gt;Artemia&lt;/i&gt;. SMX and TMP were selected for their wide range action against gram negative pathogenic bacteria and because of their limited solubility in seawater. Ormetoprim-Sulfadimethoxine (brand name Romet-30) is a new combination of a similar antimicrobial drug used in aquaculture. Diseased penaeid larvae fed Romet-30 through the food chain exhibited greater survival than the untreated ones. In an earlier study Verpraet have described a technique for bioencapsulating high doses of more than 500 mu g TMP +...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antibiotics; Aquaculture techniques; Disease control; Fish culture; Fish larvae; Food additives; Food organisms; Dicentrarchus labrax [Bass].
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2805

Questionnaire on the use of algal substitutes and the requirement for live algae in hatchery and nursery rearing of bivalve mollusks
Provedor de dados: 27
Autores: Coutteau, P.; Sorgeloos, P.
In the frame work of a PhD thesis dealing with the use of artificial diets as an algal substitute for mollusks, the Laboratory of Aquaculture &amp; Artemia Reference Center (State University of Ghent, Belgium) is organizing an inquiry which aims at drawing up an inventory of algal substitutes, their cost and applications, and their relative importance and cost-efficiency compared to live algae. The questionnaire has been sent to more than 200 people who are involved in the practice of culturing bivalves. The results will be treated as part of the PhD work and a free copy of the resulting report will be sent to all those who are returning the form. The questionnaire will be presented at Aquaculture Europe 1991 in Dublin under the form of a poster. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial feeding; Diets; Feeding experiments; Food organisms.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2813

Alternativní zemědělství - informační bulletin č.6
Provedor de dados: 21
Autores: Urban, Jiri; Pavelkova, Jirina; Scheller, Edwin; Uhlik, Jan; Kvapilik, Jindrich; Sedlo, Jiri; Hons, Pavel.
Témata bulletinu Alternativní zemědělství č.6 jsou: Návštěva na farmách Biolandu, Je hnojení pouze náhrada živin?,  Budeme mít odrůdy pro alternativní zemědělství?, Chov skotu v alternativních podmínkách ve SRN, Půdní pokryvy, Přechod k organickému vinohradnictví, Vliv současného životního prostředí, energie a techniky na život a především na člověka, Jak se pozná biopotravina?, Výroba a použití bioplynu v zemědělství.
Tipo: Newspaper or magazine article
Palavras-chave: "Organics" in general; Crop husbandry; Food systems; Environmental aspects.
Ano: 1991
URL: http://orgprints.org/21917/1/Bulletin%20%C4%8D.6.PDF

Uso contínuo de herbicidas em citrus (Citrus sinensis (L ) Osbeck), I - efeitos no controle de plantas daninhas
Provedor de dados: 87
Autores: Victoria Filho,Ricardo; Christoffoleti,Pedro Jacob; Ponchio,Joao Adolfo de Rezende; Takeda,Cláudio; Tomita,Nelson K.
A presente pesquisa foi conduzida no município de Conchal - SP, Brasil, em um Latossolo Vermelho Amarelo com 1,75% de matéria orgânica, com o objetivo de verificar o efeito do uso continuo dos principais herbicidas, no controle de plantas daninhas em um pomar de laranja 'Pera' (Citrus sinensis (L.) Osbeck, enxertada sobre limão cravo (Citrus limonia Osbeck). O delineamento experimental adotado foi o de blocos ao acaso, com 12 parâmetros e 4 repetições. Os tratamentos utiliza dos com as respectiva s dose s do i.a. em kg/ha foram: terbacil a 3,2; simazine a 4,0; ametryne + secbumetone a 4,5; dichlobenil a 5,0; diuron a 3,2; bromacil a 3,2; bromacil + diuron a 3,2; paraqua t a 0,6; glyphosate a 1,61 e MSMA a 1,77, além de uma testemunha que recebia uma capina...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Herbicidas; Citros; Herbicidas residuais.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581991000100010

Florescimento da cana-de-açúcar: seu controle com ethephon e sua relação com o acúmulo de sacarose
Provedor de dados: 87
Autores: Deuber,R.; Carlucci,M.V.
Instalou-se um experimento em cana-de-açúcar com as variedades SP70-1143, SP70-1284, IAC52/150, de 2o corte, em que se aplicou ethephon, nas doses de 0,48 e 0,72 kg/ha, em cinco diferentes épocas, de 28 de janeiro a 15 de março de 1985. Foram obtidos os valores de pol, brix, fibra, açúcare s reduto res e pureza, mensalmente, de abril a agosto. Fez-se a contagem de flores emitidas neste último mês, e obteve-se a produção de colmos em outubro. O ethephon inibiu totalme nte a emissão da SP70-1143 e, parcialmente, da IAC52/150, até agosto. A SP70-1284 só floresceu 4%. O florescimento de 50% dos colmos na SP70-1143 e 78% na IAC52/150 não afetou o processo de acúmulo de sacarose. O ethephon também nao afetou esse processo em qualquer das variedades, mas reduziu...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581991000100003

Controle de plantas daninhas na cultura do algodoeiro (Gossypium hirsutum L.) em solo anteriormente ocupado por vegetação de Cerrado
Provedor de dados: 87
Autores: Machado Neto,J.G.; de Moraes,M.L.T.
Estudou-se os efeitos de herbicidas, isolados ou combinados, na cultura do algodão (Gossypium hirsutum L.) e eficiência no controle das plantas daninhas. O experimento foi conduzido na Fazenda de Ensino e Pesquisa da Faculdade de Engenharia de Ilha Solteira - UNESP em solo Latossolo Vermelho Escuro franco argilo-arenoso, localizada no município de Selvíria, Estado de Mato Grosso do Sul, Brasil. Os tratamentos testados com as doses em kg i.a/ha foram: alachlor a 2,15 e 2,58 em pré-emergência (pré), trifluralina a 0,96 em pré-plantio incorporado ao solo (ppi) isolada ou combinada com MSMA a 1,89, ou bentazon a 0,72 ou diuron a 1,20 em pós-emergência (pós) em jato dirigido, MSMA a 2,52 em pós, linuron a 1,0 em pré diuron a 1,6 em pré ou pós e testemunhas com...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algodão Gossypium hirsutum L.; Plantas daninhas; Herbicidas.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581991000100001

Efeito de doses de metribuzin no crescimento e na conversão da energia solar em plantas de soja (Glycine max (L .) merrill)
Provedor de dados: 87
Autores: Silva Neto,P. J.; Lopes,N. F.; Oliva,M. A.; Silva,J. F.; Ferreira,L. R.
O crescimento e a eficiência na conversão da energia solar foram estudados em soja (Glycine max (L.) Merri ll, cv. 'Uberaba'), cultivada em condições de campo, sob quatro doses de metribuzin (0, 0,35; 0,70 e 1,05 kg i.a.ha-1). O valor máximo da conversão da energia solar foi de 0,75%, para as plantas cultiva das na maior dose do herbicida. Os valores da conversão da energia solar média durante o ciclo da cultura foram 0,32 ; 0,31 ; 0,32 e 0,33%. em ordem crescente de dose do metribuzin. De modo geral, na fase vegetativa as plantas controle apresentaram valores inferiores em todos os valores de crescimento determinados, superando as tratadas com metribuzin somente na fase reprodutiva, mostrando que no período crítico de competição o dano causado pelas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Metribuzin; Análise de crescimento; Conversão de energia.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581991000100006

Efeito do metribuzin sobre a fotossíntese e a tolerância em plantas de soja (Glycine max (L.) merrill)
Provedor de dados: 87
Autores: Silva Neto,P. J.; Lopes,N. F.; Silva,J. F.; Oliva,M.A.
Com o objetivo de estudar o efeito de diferentes doses de metribuzin na taxa fotossintética líquida e na tolerância de plantas de soja (Glycine max (L.) Merill, 'Uberaba' e 'Alvorada '), foi conduzido um experimento, em casa de vegetação, no Centro de Pesquisa do Cacau (CEPEC), Ilhéus, BA. Não se constataram diferenças significativas para o efeito das varie dades e para a inter ação variedades x doses, para todos os da dos analisados. Os valores médios da taxa fotossintética líquida foram 22,92; 19,87 e 18,20 mg CO2.dm-2.h-1, para as variedades 'Uberaba ' e 'Alvorada ' submetida s as doses de 0,0; 0,4 e 0,8 kg i.a. ha-1 de metri buzin, respectivamente. O efeito do metri buzin sobre a taxa fotossintética liquida foi evidenciado somente nas plant as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Resistência estomática; Transpiração; Biomassa inibição do crescimento.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581991000100004

Reação de plantas de amendoim (Arachis hypogaea L. ) ao trifluralin e mudanças na morfologia da parte subterrânea
Provedor de dados: 87
Autores: Durigan,J.C.; Matuo,T.; Andrade,V.M.R.M.; Ferreira,J.C.
Com o objetivo de reproduzir sintomas de malformação de raízes, observados em campo, foram estuda dos os efeitos do trifluralin sobre Arachis hypogaea L., cultivar Tatu, em condições de vaso, em Jaboticabal, SP. Quatro formulações de trifluralin foram aplicadas em solo Latossol Roxo - série Jaboticabal, barro argiloso, com 2,7% de matéria orgânica, em dosagem correspondentes a 1,5; 3,0 e 6,0 litros da formulação comercial por ha. Cada vaso contendo 2,5 1 -de solo, recebeu duas sementes pré -germinada s e foi mantido sob condições de casa-de-vegetação durante 29 dias. Foi adotado o delineamento inteiramente casualizado com treze tratamentos e quatro repetições, perfazendo total de 52 parcelas. Aos 29 dias as plantas, foram retiradas e determinadas as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trifluralin; Doses; Amendoim; Modificações morfológicas e citológicas.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581991000100002

Uso contínuo de herbicidas em citrus (Citrus sinensis L.) osbeck ): II. Efeitos no desenvolvimento, produção e qualidade dos frutos
Provedor de dados: 87
Autores: Victoria Filho,Ricardo; Moreira,Célio S.; Shimoama,Natalino Y.; Shinohar,Rosa K.
A presente pesquisa foi conduzida no município de Conchal - SP, Brasil, em um Latossol Vermelho Amarelo com 1,75% de matéria orgânica com o objetivo de veri fic ar o efeito do uso cont inuo dos principais herbicidas no desenvolvimento, produção e qualidade dos frutos em um pomar de laranja 'Pera' Citrus sinensis (L.) Osbeck), en xertada sobr e limão cravo (Citrus lionia Osbeck). O delineamento experimental adotado foi o de blocos ao acaso, com 12 tratamentos e 4 repetições. Os tratamentos utilizados com as respectivas doses do i. a. em kg/h a foram: terbacil a 3,2; simazine a 4,0; ametryne + secbumetone 4,5; dichlobenil a5,0 ; diuron a3,2 ; bromacila 3,2; bromacil + diuron a 3,2; paraquat a 0,6; glyphosate a 1,61 e MSMA a 1,77 alem de uma testemunha que...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581991000100011

Efeitos de algumas características do solo na resposta da planta a doses de herbicidas
Provedor de dados: 87
Autores: Paulo,E. M.; Jorge,J. A.; Arruda,F. B.; Patrício,F. R. A.
Foram estudados em casa de vegetação o tempo de sobre vivência de oito espécies olerícolas a aplicação de atrazina nas doses correspondentes a 1,8 e 3,2 kg/ha, e de diuron nas doses de 1,2 e 2,0 kg/ ha, em três tipos de solos ácidos tropicais. Os resultados mostraram alta correlação linear entre o tempo médio de vida das plântulas com teores de matéria orgânica, capacidade de troca catiônica (CTC) efetiva e pH do solo; e baixas correlações com teores de argila mais silte. Os resultados indicam ser mais adequado tomar como base a característica CTC do solo em lugar da sua classificação textural para fins de recomendação das doses dos herbicidas.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atrazina; Diuron; Espécies olerícolas; Matéria organica; CTC.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581991000100008

Residuos de paraquat em grão de soja quando usado com dessecante da cultura
Provedor de dados: 87
Autores: Almeida,F. S. de; Pineda-Aguilar,A.; Rodrigues,B. N.
O uso de paraquat na dessecação da soja deixa resíduos no grão cujo teor está relacionado com a fase de maturação da cultura quando da aplicação do produto e o intervalo de tempo entre esta operação e a colheita . A lei brasileira estipula como limite de resíduo no grão, 0,1 mg kg-1 e o prazo de carência de sete dias entre a aplicação e a colheita. Para que esse teor médio de 0,1 mg kg-I, com oscilações de 0,03 a 0,32 mg kg-1, seja atingido, a necessário, não só que a aplicação do paraquat se faça com essa antecedência à colheita como, também, que não ultra passe a fase de maturação da soja correspondente a 807 de vagens marrons.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Maturação; Colheita; Paraquat.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581991000100009

Desenvolvimento, partição de assimilados e produção de matéria seca de plantas de soja (Glycine max (L.) merrill) submetidas a quatro doses de metribuzin
Provedor de dados: 87
Autores: Silva Neto,P. J.; Lopes,N. F.; Oliva,M. A.; Silva,J. F.; Ferreira,L. R.
O desenvolvimento, a partição e a produção de matéria seca, foram estudados em soja (Glycine Max (L. ) Merri ll, cv. 'Uberaba'), cultivadas em condições de campo, sob quatro doses de metribuzin - (0,0; 0,35; 0,70 e 1,05 kg i.a. ha-1). O metri buzin não reduziu a população e nem alterou significativamente a razão parte aérea/sistema radicular. A altura média das plantas aumentou significativamente com o incremento das doses de metribuzin, sendo que as alturas máximas das plantas foram 761, 784, 815 e 812 mm, em ordem crescente de dose de metribuzin. As variações das taxas de acúmulo de matéria seca foram nitida mente seqüenciais em todos os tratamentos, ocorrendo mudanças do dreno metabólico preferencial de um órgão para outro, de acordo com as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Metribuzin; Biomassa; Morfologia; Soja.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581991000100007

Efeito do metribuzin no controle das plantas daninhas e na produção de grãos em Glycine max (L ) merrill
Provedor de dados: 87
Autores: Silva Neto,J. P.; Lopes,N. F.; Silva,J. F.; Oliva,M. A.; Ferreira,L. R.
No ano agrícola 1985/ 86, em Viçosa-MG, foi instalado um ensaio de campo em solo Pdzólico Vermelho-Amarelo argiloso e com 2,9% de matéria orgânica, objetivando estudar o efeito das doses de metribuzin (0,0; 0,35; 0,70 e 1,05 kg i.a.ha-1) no controle de plantas daninhas e na produtividade da soja (Geycine max (L.) Merri ll, cv. 'Uber aba'). A maioria das monocotiledôneas que ocorreram na area experimental foi represent ada por Cyperus rotundus L., Brachiaria plantaginea (Link) Hitch. e Cynodon dactylon (L.) Pers., tendo-se verificado somente redução em Brachiaria planta taginea em virtude do aumento das doses de metribuzin, ocorrendo o mesmo com relação às dicotiledôneas que se fizerem presentes no experimento, com exceção de Oxalis Oxyptera Prop., que não...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Herbicida; Densidade de invasoras; Fitotoxicidade.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581991000100005

A DECISION SUPPORT SYSTEM FOR SUSTAINABLE FARMING
Provedor de dados: 31
Autores: Ikerd,   John E.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy; Farm Management.
Ano: 1991
URL: http://purl.umn.edu/28824

ECONOMIC RESEARCH OF INTEREST TO AGRICULTURE, 1988-1990
Provedor de dados: 31
Autores: Dote,   Grace.
This bibliography of Giannini Foundation members' publications, Economic Research of Interest to Agriculture was first issued on May 6, 1951, the eighty-first birthday of A.P. Giannini, and included the Giannini Foundation of Agricultural Economics members' works from 1929 through 1950. The first three issues were compiled and edited by the Giannini Foundation's first librarian, Orpha E. Cummings, 1930-1958. The issues that followed were edited by librarians, Mary Lida Eakin, 1958-1967; Virginia A. Fox, 1967-1980; and Grace Dote, 1970-2001.
Tipo: Report
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/7326

HEALTH AND SAFETY REGULATION OF SMALL, HIGH-RISK SUBPOPULATIONS
Provedor de dados: 31
Autores: Williams,   Richard A.; Brown,   Robert N.
The choice of decision framework used to set regulatory tolerance levels for hazardous substances can be divided into rigid and flexible tolerance levels. Rigid decision frameworks include zero or deminimis that fix risk levels for some subpopulation. and/or highly tolerances The accelerating identification of highly sensitive exposed individuals and the division of the population into ever smaller subpopulations at higher risk could prove to be tremendously burdensome on regulatory systems, particularly for rigid decision frameworks. Rigid tolerance levels, philosophically based on "rights" to zero or arbitrarily low excess risks for individuals, do not contain sufficient flexibility to account for small high-risk subpopulations. Furthermore, the equal...
Tipo: Working or Discussion Paper
Palavras-chave: De minimis; Sensitive; Decision framework; Cost benefit; Food Consumption/Nutrition/Food Safety; Health Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/115914

APPLYING LISA CONCEPTS ON SOUTHERN FARMS OR CHANGING FARM PHILOSOPHIES: DISCUSSION
Provedor de dados: 31
Autores: Dicks,   Michael R.
Tipo: Journal Article
Palavras-chave: Farm Management.
Ano: 1991
URL: http://purl.umn.edu/30293

Southern Dairy Farmers' Evaluation of Milk Handlers
Provedor de dados: 31
Autores: Liebrand,   Carolyn; Carley,   Dale H.; Ling,   K. Charles.
Southern dairy farmers' perception of their cooperative's or proprietary handler's performance, level of satisfaction with the milk handler, and reasons for staying with the handler, or for shifting handlers, were evaluated. The data were from a 1989 mail survey of Southern dairy farmers. The dairy farmers' differing evaluations of their milk handlers depended on the type of handler they dealt with, geographic location, and/or the characteristics of the farm and farmer. Generally, dairy farmers were concerned about price, deductions, and assessments. The price farmers received appeared to be a significant factor affecting farmers' satisfaction level. There appeared to be a tradeoff between price and deductions versus service, and market and payment...
Tipo: Report
Palavras-chave: Cooperative; Milk handler; Proprietary handler; Assured market; Price; S-217; Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/51568

U.S. Commodity Promotion Organizations: Objectives, Activities, and Evaluation Methods
Provedor de dados: 31
Autores: Lenz,   John E.; Forker,   Olan D.; Hurst,   Susan J.
During the summer of 1990 we asked all of the U.S. commodity promotion organizations we could identify to complete a questionnaire about their objectives, program activities, and evaluation methods. The 116 organizationsthat responded had a total staff of 2,017 and invested over $750 million in programs and administration in 1990. The responses indicated that producerboards of directors are very much involved in formulating program objectives.All of our respondents place a high priority on increasing aggregate commodity sales and on maximizing producer net returns. They use a variety of strategies and means to achieve their objectives, and also use a variety of evaluation methods. This report discusses in detail the relationships among objectives,...
Tipo: Working Paper
Palavras-chave: Marketing.
Ano: 1991
URL: http://purl.umn.edu/123097

DERIVED DEMAND ELASTICITIES: MARKETING MARGIN METHODS VERSUS AN INVERSE DEMAND MODEL FOR CHOICE BEEF
Provedor de dados: 31
Autores: Marsh,   John M.
Three methods of calculating the derived elasticity of demand for Choice slaughter beef are used: (a) a traditional marketing margin approach, (b) a modified marketing margin approach, and (c) an econometric, inverse demand model approach. The first method is more restrictive than the second but both tend to overestimate beef price flexibility and revenue changes. The econometric model, though an incomplete demand system, yields demand elasticities that are more consistent with marketing flexibility but are less pronounced than estimates of a complete system. An example using a two-year revenue forecast compares slaughter revenue adjustments based on the first margin method with those based on structural demand models.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/32607

POTENTIAL IMPACTS OF BST ON THE MINNESOTA MILK SUPPLY
Provedor de dados: 31
Autores: Helming,   John F.M.; Hammond,   Jerome W.
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/14119

Retail Trade Area Analysis Watford City North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
Tipo: Technical Report
Palavras-chave: Community/Rural/Urban Development; Public Economics.
Ano: 1991
URL: http://purl.umn.edu/119433

THE EFFECTS OF AGRICULTURAL PRODUCTION ON ENVIRONMENTAL QUALITY: INTRODUCTION
Provedor de dados: 31
Autores: Tauer,   Loren W.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/28814

Time-of-Use Pricing for Electric Power: Implications for the New York Dairy Sector, A Preliminary Analysis
Provedor de dados: 31
Autores: Middagh,   Mark C.
This paper examines the cost of electric power consumption on New York dairy farms. More specifically, it is a preliminary evaluation of the cost changes that dairy farmers may experience when residential time-of-use electricity rates are implemented by New York State utilities. Using a model developed for Niagara Mohawk Power Corporation, the operating cost of farm electrical equipment is estimated using both flat rate pricing and NMPC's new time-of-use rates, which are now being implemented for their farm and residential customers. Twenty-five "typical" family-operated dairy farms are evaluated with this model. Initial results indicate a cost decrease up to 10 percent as a result of the switch to time-of-use rates. Larger farms will experience a greater...
Tipo: Working Paper
Palavras-chave: Livestock Production/Industries; Resource /Energy Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/121481

Global Grain Stocks and World Market Stability Revisited
Provedor de dados: 31
Autores: Martinez,   Stephen W.; Sharples,   Jerry A.
The world's grain stocks are providing more world market stability than they did prior to 1978. Even though the volatility of world grain production increased since 1978, global consumption volatility declined. Grain production variability in the Soviet Union, United States, and Argentina appear to be major potential sources of instability to world grain markets, though much production variability in the Soviet Union and the U.S. is offset by their own stock adjustments. U.S. stocks have played a major stabilizing role on world grain markets. EC grain stocks in recent years have also played a stabilizing role. Reductions in U.S. and EC grain stock levels, a possible result of trade liberalization talks, could have important implications for market...
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/51144

EFFICIENCY MEASURES USING THE RAY-HOMOTHETIC FUNCTION: A MULTIPERIOD ANALYSIS
Provedor de dados: 31
Autores: Neff,   David L.; Garcia,   Philip; Hornbaker,   Robert H.
Recent investigations have provided mixed assessments of farm firm efficiency. This analysis examined the efficiency of a homogeneous sample of central Illinois grain farms over a six-year period. A best-practice frontier was constructed using the ray-homothetic function, which allowed optimal farm output to vary with factor intensity. Efficiency measures were found to increase with temporal aggregation. The ray-homothetic approach was found to attribute high scale inefficiencies to larger sample farms in cases where the factor shares did not vary appreciably across farms. The findings suggest that policy recommendations regarding farm efficiency must be made with care.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/30053

Pricing and Marketing Practices for North Dakota Durum and HRS Wheat: 1990 Crop Year
Provedor de dados: 31
Autores: Scherping,   Daniel J.; Wilson,   William W.
Tipo: Report
Palavras-chave: Crop Production/Industries; Marketing.
Ano: 1991
URL: http://purl.umn.edu/51199

Demand for Florida fresh specialty citrus
Provedor de dados: 31
Autores: Brown,   Mark G.; Muraro,   Ronald P.
Tipo: Report
Palavras-chave: Citrus; Demand; Agribusiness; Demand and Price Analysis; International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/52713

EFFECT OF DEBT POSITION ON THE CHOICE OF MARKETING STRATEGIES FOR FLORIDA ORANGE GROWERS: A RISK EFFICIENCY APPROACH
Provedor de dados: 31
Autores: Moss,   Charles B.; Ford,   Stephen A.; Castejon,   Mario.
This study examined the relationship between debt position and choice of marketing instrument. Specifically, this study employed first and second degree stochastic dominance, and stochastic dominance with respect to a function to determine whether the efficient marketing instrument changes between debt positions. The results indicate that the choice of marketing instrument does vary with debt position in some marketing periods if the decision-maker is moderately risk averse.
Tipo: Journal Article
Palavras-chave: Marketing.
Ano: 1991
URL: http://purl.umn.edu/30046

END MATERIALS
Provedor de dados: 31
Includes: Guidelines for Submission of Manuscripts; 1991 Executive Committee and Membership/Subscription Information
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/30054

COUNTY GOVERNMENT FINANCES IN MINNESOTA: AN OVERVIEW
Provedor de dados: 31
Autores: Waldo,   Arley D.
Tipo: Working or Discussion Paper
Palavras-chave: Public Economics.
Ano: 1991
URL: http://purl.umn.edu/13615

RURAL COMMUNITY HOUSING: POLICY ISSUES AND DIRECTIONS
Provedor de dados: 31
Autores: Ziebarth,   Ann.
Tipo: Conference Paper or Presentation
Palavras-chave: Community/Rural/Urban Development.
Ano: 1991
URL: http://purl.umn.edu/17461

INSTITUTIONAL REFORM IN THE COMMERCIAL AGRICULTURAL SECTOR OF SOUTH AFRICA:  AN INSTITUTIONAL REVIEW OF PAST AND PRESENT STRUCTURES, AND AN ASSESSMENT OF ISSUES AND OPTIONS FOR PRIVATE BASED REFORM INITIATIVES
Provedor de dados: 31
Autores: Aling,   James N.
The changing political economy and present structure and performance of the commercial agricultural sector in South Africa necessitates change. An institutional approach is adopted to review the origin of past and present institutions and organizations in the commercial sector.   Private based reform initiatives are focused upon as one of the possible processes through reform in the sector can be undertaken. The private based reform initiatives undertaken in the sugar sub sector are analyzed from a situation, structure and performance perspective in attempt to explain the origins and outcomes of these initiatives.   Successful lessons from the case study are examined with two other private based reform initiatives, namely sharecropping and employee share...
Tipo: Thesis or Dissertation
Palavras-chave: Institutional and Behavioral Economics.
Ano: 1991
URL: http://purl.umn.edu/11073

FINANCIAL ANALYSIS OF TRACTOR PURCHASE DECISION IN SOUTH SULAWESI, INDONESIA:  A COMPUTER SPREADSHEET TEMPLATE
Provedor de dados: 31
Autores: Maamun,   Muhamad Yusuf.
Although most of the rice area in Indonesia is still prepared manually, since the early 1980s the government has promoted tractors for land preparation through subsidized loans. This has increased capital investment in agriculture; and for the farmers, the cost of owning and operating tractor has become an important part of farm costs. By the late 1980s, a rapid increase in the number of tractors intensified competition, reducing capacity utilization below an economically viable level. Thus, many tractor owners defaulted on their loans.  This study investigates the financial profitability of tractor ownership in South Sulawesi, using a computer spreadsheet. The analysis uses input and output data (technical coefficient) collected by the Consequences of...
Tipo: Thesis or Dissertation
Palavras-chave: Agricultural Finance; Farm Management.
Ano: 1991
URL: http://purl.umn.edu/11212

Honey Industry Survey: An Update
Provedor de dados: 31
Autores: Willett,   Lois Schertz.
Tipo: Working Paper
Palavras-chave: Agribusiness; Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/121376

El sector industrial en el Perú: una visión de largo plazo
Provedor de dados: 31
Autores: Garland Hilbck,   Gonzalo; Saavedra Chanduvi,   Jaime.
Este documento analiza la evolución del sector industrial peruano, mostrando sus características más importantes en los últimos treinta años y poniendo énfasis en aquellos procesos que condicionaron el derrotero de largo plazo del sector; asimismo, se hace un análisis econométrico del comportamiento de cada subsector industrial.
Tipo: Working or Discussion Paper
Palavras-chave: Sector industrial; Produccion industrial; Modelos econometricos; Industrial sector; Industrial production; Econometric models; Peru; Industrial Organization; Productivity Analysis; L10; L11; C50.
Ano: 1991
URL: http://purl.umn.edu/42264

IS A BEEF DEFICIENCY PAYMENT PARETO-SUPERIOR IN SOUTH KOREA?
Provedor de dados: 31
Autores: Nelson,   Gerald C.; Lee,   Yong-Kee.
South Korea uses a quota and a tariff on beef imports to keep farm prices high. Part of the quota rents are used to support indirect benefits to producers. The welfare costs of these policies are analyzed. Following a suggestion of Hayami, a deficiency payment financed by tariff revenues from increased imports is considered as an alternative to the quota. As Anderson (1983) found for Japan, a deficiency payment is Pareto-superior only if indirect benefits from the quota revenue are ignored.
Tipo: Journal Article
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/32622

Membership: an Organizational View
Provedor de dados: 31
Autores: Gray,   Thomas W.
This study examines the membership structure of a large centralized cooperative from an organizational workability view. Structure is created by dividing membership organizationally, i.e., assigning different roles and tasks to different groups of members, as well as to individual members, and bringing coordination to these differentiations. The membership structure of the case cooperative was found large in number of members, highly differentiated, and well coordinated. The structuring, i.e., creating a division of labor among the membership, and the coordinating of these divisions is done in response to conditions in the membership environment.
Tipo: Report
Palavras-chave: Cooperative; Organization; Paradigm; Specialization; Coordination; Complexity; Stability/instability; Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/52016

OBITUARY: JOHN COLEMAN FLINN 1939-1991
Provedor de dados: 31
Autores: Quilkey,   John J.
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/22625

CHANGES IN EUROPE AND THE USSR: AN OVERVIEW FOR SOUTHERN AGRICULTURE AND AGRIBUSINESS
Provedor de dados: 31
Autores: Penn,   J.B.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/30278

INVITED PAPERS ABSTRACTS
Provedor de dados: 31
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/32612

MARKETING INFORMATION SYSTEM FOR FRUITS AND VEGETABLES IN JORDAN
Provedor de dados: 31
Autores: Qat,   Yousef M.
The partial or complete failure of agricultural development programs in developing countries is often due to the lack of understanding by decision makers at all levels of the marketing links. Marketing is often conceptualized and understood only as a process of assembling produce in rural or wholesale markets. Other aspects and roles of marketing mainly as incentives for production are often not well understood. Thus, the process of improving development policies often depends on trial and error, and can be generally enhanced with more accurate information. On the other hand, notions about marketing that are wrong or based on half-truths are accumulated over the years and passed on from generation to generation as facts. The lack of market research results...
Tipo: Thesis or Dissertation
Palavras-chave: Marketing.
Ano: 1991
URL: http://purl.umn.edu/11223

Retail Trade Area Analysis Wahpeton North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
This report in intended to provide an indepth trade area analysis of Wahpeton, North Dakota. Specific analyses included determining Wahpeton's main and greater trade areas, identifying the demographic profile of Wahpeton shoppers, examining important and less important services for patron shoppers of Wahpeton, identifying neighboring cities that area shoppers patronize, determining distances area shoppers traveled to Wahpeton, and listing popular newspapers and radio stations among area residents. Current trade area information for Wahpeton was obtained from a statewide trade area survey conducted by the Department of Agricultural Economics at North Dakota State University in 1989. Recent trends (1980 to 1989) in Wahpeton population, retail sales, per...
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Financial Economics.
Ano: 1991
URL: http://purl.umn.edu/51306

MULTIPRODUCT PRODUCTION CHOICES AND POLICY RESPONSE
Provedor de dados: 31
Autores: McIntosh,   Christopher S.; Shumway,   C. Richard.
A restricted profit function model of California agriculture is specified and estimated subject to prior information provided by economic theory. Symmetry, homogeneity, and convexity of the profit function are maintained in the estimation. Parameter estimates and elasticities are presented for four input and 10 output equations. Tests of the hypotheses of nonjointness in inputs and Hicks-neutral technical change in variable inputs and outputs are rejected. The impacts of decoupling agricultural program payments are examined.
Tipo: Journal Article
Palavras-chave: Agricultural Finance.
Ano: 1991
URL: http://purl.umn.edu/32610

LIVESTOCK AND POULTRY PRODUCTION RISK IN THE UNITED STATES
Provedor de dados: 31
Autores: Hammida,   Mustapha; Eidman,   Vernon R.
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/14016

OF DIVORCE, CHILDREN AND NATIONAL POLICY
Provedor de dados: 31
Autores: Elrod,   Linda D.
Tipo: Conference Paper or Presentation
Palavras-chave: Public Economics.
Ano: 1991
URL: http://purl.umn.edu/17467

MODELING THE U.S. DAIRY SECTOR WITH GOVERNMENT INTERVENTION
Provedor de dados: 31
Autores: Liu,   Donald J.; Kaiser,   Harry M.; Mount,   Timothy D.; Forker,   Olan D.
An econometric framework for estimating a two-regime dairy structural system is presented. Failure to account for switching between regimes due to government price intervention raises the problem of selectivity bias. Further, since a structural system of equations is involved, the problem is not limited to the market associated with the intervention. Rather, bias from a single source can distort all equations in the system. The ramifications of not correcting for the bias in policy analyses are investigated.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy; Industrial Organization.
Ano: 1991
URL: http://purl.umn.edu/32602

TESTS OF MONETARY NEUTRALITY ON FARM OUTPUT
Provedor de dados: 31
Autores: Devadoss,   Stephen.
According to the monetary neutrality hypothesis, only the unanticipated money supply growth has impacts on real economic variables, and the anticipated money supply growth has no real impacts. The monetary neutrality hypothesis is tested on real farm output. The test procedure involves joint estimation of farm output and the money growth equation. The empirical results show that the anticipated money supply growth does have significant effects on farm output and, thus, do not support the monetary neutrality hypothesis.
Tipo: Journal Article
Palavras-chave: Financial Economics.
Ano: 1991
URL: http://purl.umn.edu/32626

Dairypert: An Expert Systems Approach for Improving Dairy Farm Management Practices and Assisting Technology Transfer
Provedor de dados: 31
Autores: Kalter,   Robert J.; Skidmore,   Andrew L.
This manuscript reports on the development an expert system (DairyPert™) for application to production dairy operations in the United States. The approach combines rule and model based components in a system that permits diagnostic evaluation of a dairy's current operations. Neuron Data's NEXPERT shell is used for implementation. The shell is integrated with FoxPro database programs for data entry and delivery of system findings and results, and with an Excel spreadsheet containing the Cornell Net Carbohydrate and Protein nutrition model. Both IBM and Apple Macintosh personal computers are used as platforms for the effort. The knowledge base is structured modularly to determine constraints to greater profitability and/or production in eight key management...
Tipo: Working Paper
Palavras-chave: Farm Management; Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/123111

PEOPLE LEFT BEHIND: TRANSITIONS OF THE RURAL POOR: DISCUSSION
Provedor de dados: 31
Autores: Deaton,   Brady J.
Tipo: Journal Article
Palavras-chave: Community/Rural/Urban Development.
Ano: 1991
URL: http://purl.umn.edu/30300

U.S. Beef Product Prices and Trade Liberalization
Provedor de dados: 31
Autores: Unnevehr,   Laurian J.; Eales,   James S.
Tipo: Journal Article
Palavras-chave: Agribusiness; Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/62307

FRONT COVER
Provedor de dados: 31
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/22617

Government Influence on the Supply of Commercial Inventories of American Cheese
Provedor de dados: 31
Autores: Pratt,   James E.; Novakovic,   Andrew M.
Tipo: Working Paper
Palavras-chave: Agricultural and Food Policy; Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/121491

LINKAGES BETWEEN FARM AND FINANCIAL MANAGEMENT
Provedor de dados: 31
Autores: Boehlje,   Michael; Olson,   Kent D.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural Finance; Farm Management.
Ano: 1991
URL: http://purl.umn.edu/13339

STRATEGIES FOR U.S. APPLE EXPORTING FIRMS
Provedor de dados: 31
Autores: McCracken,   Vicki A.; Tansuhaj,   Patriya; O'Rourke,   A. Desmond; Walter,   Karol.
Tipo: Journal Article
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/27611

AGRICULTURAL, FOOD AND HUMAN RESOURCE POLICIES: IMPLICATIONS FOR RURAL AFRICAN-AMERICANS
Provedor de dados: 31
Autores: Christy,   Ralph D.; Allen,   Joyce E.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1991
URL: http://purl.umn.edu/17463

SUSTAINABLE GROWTH IN AGRICULTURAL PRODUCTION: POETRY, POLICY AND SCIENCE
Provedor de dados: 31
Autores: Ruttan,   Vernon W.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; International Development.
Ano: 1991
URL: http://purl.umn.edu/13601

Grading Grain Under the U.S. Grain Standards
Provedor de dados: 31
Autores: Kiser,   Harvey L.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/118194

Using SAM's to account for distortions in non-market economies
Provedor de dados: 31
Autores: Adelman,   Irma; Berck,   Peter; Vujovic,   Dusan.
Tipo: Working or Discussion Paper
Palavras-chave: Economic conditions; Economic development; Economics; Equilibrium; Investments; Sam.
Ano: 1991
URL: http://purl.umn.edu/43741

Can Cooperative Movements Be Successful in Traditional Societies? The Case of Southern Senegal
Provedor de dados: 31
Autores: Jolly,   Curtis M.
In spite of professional and political support for cooperatives in West Africa, their record of accomplishments is very spotty. Advocates of cooperatives have been blamed for not tailoring the movement to the needs, social practices, and orientations of traditional societies. In this paper, an attempt is made to show how indigenous groups can be organized to improve the coordination of traditional groups, local governments, financial institutions, and aid donors. Village cooperatives, called "Groupement Villageois," in southern Senegal were allowed to organize their own business affairs. Credit was provided to the cooperative group by the development agency. Cooperative activities were structured around cultural norms, village traditions, and production...
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/46255

ON THE NEGLECT OF DYNAMICS, RISK AND MARKET INSULATION IN THE ANALYSIS OF URUGUAY ROUND FOOD TRADE REFORMS
Provedor de dados: 31
Autores: Tyers,   Rodney.
The substantial investment in models of international food markets prior to and during the Uruguay Round of international trade negotiations has been a mixed blessing so far as the prospects for reform are concerned. At worst, results from these models have misled the negotiations because they have most often ignored a primary concern lending domestic political support to food market interventions, namely the avoidance of risks borne of dependence on international markets. In this paper the reasons for market insulating policies are reviewed and their links with protection elucidated. Some errors that have stemmed from the application of 'standard' but inappropriate models are noted. Finally, the implications of extending the standard method to include...
Tipo: Journal Article
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/22620

FATAL FARM ACCIDENTS IN NEW YORK: ESTIMATES OF THEIR COSTS
Provedor de dados: 31
Autores: Kelsey,   Timothy W.
A telephone survey of all of the surviving families of people killed in farm accidents in New York between 1985 and 1987 (52 of 87 families interviewed, 60% response rate) found the average total annual present value of expected income foregone because of fatal farm accidents in New York is over $8.6 million (in 1987 dollars).  Less than five years after the accidents, 67% of the families who operated the farms where the accidents occurred no longer operate them and 44% no longer live on the farms.
Tipo: Journal Article
Palavras-chave: Labor and Human Capital.
Ano: 1991
URL: http://purl.umn.edu/29012

The differential demand model with habit persistence
Provedor de dados: 31
Autores: Brown,   Mark G.; Lee,   Jonq-Ying.
Tipo: Report
Palavras-chave: Habit persistence; Rotterdam model; Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/52720

Retail Trade Area Analysis Rolla North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
Tipo: Technical Report
Palavras-chave: Community/Rural/Urban Development; Public Economics.
Ano: 1991
URL: http://purl.umn.edu/119431

The 1991 North Dakota Legislature--Agricultural Update
Provedor de dados: 31
Autores: Murphy,   Paul C.; Sheets,   Jeff L.; Saxowsky,   David M.
The 1991 North Dakota Legislature extensively considered economic development. Growing North Dakota, perhaps one of the most comprehensive proposals, was not adopted until near the end of the session. This program encourages diversification and industrialization of North Dakota agriculture, as well as provides continued funding for several agricultural programs, including the beginning farmer program. The legislators acted to protect groundwater resources and established a Northwestern Area Water Authority. Water permit application fees were increased by 100% for both irrigation and livestock uses. The recent drought and need for water for livestock culminated in a livestock water assistance program. A grasshopper pest control bill allows township...
Tipo: Report
Palavras-chave: Agricultural and Food Policy; Farm Management.
Ano: 1991
URL: http://purl.umn.edu/51233

SIMULATING BST INTRODUCTION IN CALIFORNIA FOR DAIRY POLICY ANALYSIS
Provedor de dados: 31
Autores: Zepeda,   Lydia; Butler,   Leslie J.; Carter,   Harold O.
An econometric model is estimated to simulate the impact of introducing bovine somatotropin (BST) on the California dairy industry. Forecasts of 1991-94 milk production and prices without BST are compared to those with BST under the 1990 Farm Bill. The effects are evaluated under a range in assumptions, given the uncertainty about BST's commercial benefits and costs. Results indicate the aggregate returns of BST introduction for California are positive, but small, assuming no adverse consumer reaction.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy; Research and Development/Tech Change/Emerging Technologies.
Ano: 1991
URL: http://purl.umn.edu/32595

NJARE REVIEWERS, OCTOBER 1990 TO JULY 1991
Provedor de dados: 31
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/29013

COMPARATIVE ECONOMICS OF ALTERNATIVE AGRICULTURAL PRODUCTION SYSTEMS: A REVIEW
Provedor de dados: 31
Autores: Fox,   Glenn; Weersink,   Alfons; Sarwar,   Ghulam; Duff,   Scott; Deen,   Bill.
Tipo: Journal Article
Palavras-chave: Farm Management.
Ano: 1991
URL: http://purl.umn.edu/28812

EXTENSION IN AFRICA:  AN INSTITUTIONAL ANALYSIS
Provedor de dados: 31
Autores: Schwartz,   Lisa A.
The origins of extension work can be traced largely to the format organization of "agricultural extension" during the second half of the nineteenth century in Europe and North America, the models having since spread to other geographical areas and to other fields of human activities. What remained throughout, however, has been the idea of extension as a way of communicating technical and scientific information to clients on the assumption that once they started using this information it would enable them to improve their living conditions (Huizinga, 1982, p. 134).
Tipo: Thesis or Dissertation
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/11075

Adjustments in Market Channels and Labor in the Florida Sod Industry
Provedor de dados: 31
Autores: Cisar,   John L.; Haydu,   John J.
Tipo: Journal Article
Palavras-chave: Agribusiness; Labor and Human Capital.
Ano: 1991
URL: http://purl.umn.edu/62309

The Department's Role in Preparing Individuals and Teams for the Challenge of the 1990s
Provedor de dados: 31
Autores: Johnson,   Marc A.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy.
Ano: 1991
URL: http://purl.umn.edu/118196

FUNCTIONAL FORMS AND FARM-LEVEL DEMAND FOR PECANS BY VARIETY
Provedor de dados: 31
Autores: Okunade,   Albert Ade.; Cochran,   Mark J.
Recent developments in the U.S. pecan industry appear to limit the utility of past research. The importance of pecan variety has emerged as an issue which could alter past results. The linear and double-log models previously fitted to all pecans (averaged) data may be too restrictive and hence, are less useful for variety-specific analysis. Past research also analyzed price turning points using nominal data. This study investigated functional form and data-averaging problems by fitting separate flexible Box-Cox price-dependent models for all-pecans and each variety of pecans (1970/71 -1988/89 deflated data). Results indicate: other nuts substitute for different pecan varieties, estimated all-pecans price flexibility is biased and clouds variety-specific...
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/30051

A HEDONIC APPROACH TO URBAN WETLAND VALUATION
Provedor de dados: 31
Autores: Lupi,   Frank; Graham-Tomasi,   Theodore; Taff,   Steven J.
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 1991
URL: http://purl.umn.edu/13284

Farm Planning under Uncertainty: A Review of Alternative Programming Models
Provedor de dados: 31
Autores: Hardaker,   J. Brian; Pandey,   Sushil; Patten,   Louise H.
The complexity of modelling risk in farming systems is explained and the artistic nature of the task noted. A brief outline is presented of an appropriate conceptual framework, drawing attention to the merits of stochastic efficiency criteria for analysis of systems when risk preferences of individual farmers are unavailable. A distinction is drawn between planning problems with and without embedded risk. The merits of 'utility efficient' (UE) programming are explained. Extensions of programming models, including UE formulations, to embedded risk using discrete stochastic programming are reviewed. The paper concludes with a discussion of the importance of correctly understanding the way risk impacts upon the target farming system, and then of formulating a...
Tipo: Journal Article
Palavras-chave: Farm Management.
Ano: 1991
URL: http://purl.umn.edu/12460

AN EXPLORATORY STUDY OF THE MARKETING PROCESSES OF CONSUMER FOOD PRODUCT MARKETERS
Provedor de dados: 31
Autores: Wadsworth,   Frank Howard.
Increased rivalry in the food industry has led existing food marketers to change from a 'commodity' to a 'marketing' business orientation. This research investigates the marketing process as implemented by several consumer food product marketers. A model of the marketing process was developed using marketing literature and discussions with academicians. Field interviews with consumer food product marketers were conducted to determine their marketing processes and activities. Interview results reveal that although marketers use the same components of the marketing process model, the extent to which these components are used varies substantially. Commodity-oriented firms use fifty percent of the model's elements, while marketing-oriented firms use ninety...
Tipo: Thesis or Dissertation
Palavras-chave: Marketing.
Ano: 1991
URL: http://purl.umn.edu/11245

Alternative Measures of Benefit for Nonmarket Goods Which are Substitutes or Complements for Market Goods
Provedor de dados: 31
Autores: Loehman,   Edna T.
Nonmarket goods include quality aspects of market goods and public goods which may be substitutes or complements for private goods. Traditional methods of measuring benefits of exogenous changes in nonmarket goods are based on Marshallian demand: change in spending on market goods or change in consumer surplus. More recently, willingness to pay and accept have been used as welfare measures . This paper defines the relationships among alternative measures of welfare for perfect substitutes, imperfect substitutes, and complements. Examples are given to demonstrate how to obtain exact measures from systems of market good demand equations .
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness; Marketing.
Ano: 1991
URL: http://purl.umn.edu/115913

THE IMPLICATIONS OF A NORTH AMERICAN FREE TRADE AREA FOR AGRICULTURE
Provedor de dados: 31
Autores: Barichello,   Richard R.; Bivings,   Leigh; Carter,   Colin A.; Josling,   Timothy E.; Lindsey,   Patricia J.; McCalla,   Alex F.
This is one of two papers commissioned by the International Agricultural Trade Research Consortium on various aspects related to the agricultural sector of a prospective North American Free Trade Agreement.  The companion paper to this one has been prepared by a working group chaired by Thomas Grennes, North Carolina State University.  To minimize duplication with the Grennes paper, this paper has given greater attention to the general trade policy issues raised by a NAFTA, institutional factors, additional commodity detail in cereals, fruit and vegetables, and the relevance of other regional trade agreements such as the Canada-U.S. Trade Agreement.  This work has also benefitted from an earlier report and its annexes, prepared for the Fraser Institute,...
Tipo: Report
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/14619

AN APPROACH TO THE ECONOMETRIC ESTIMATION OF ATTITUDES TO RISK IN AGRICULTURE: COMMENT
Provedor de dados: 31
Autores: Bar-Shira,   Ziv.
Bardsley and Harris (1987) test empirically the effects of changes In deterministic wealth and random income on the measure partial risk aversion. The paper, which is otherwise well written, failed to impose the relationship between the two effects and estimated them independently. Consequently, inconsistent estimates were derived for the elasticities of the measure of partial risk aversion with respect to wealth and to income. The purpose of this comment is to derive that relationship theoretically and to point out the resulting inconsistencies in the original paper.
Tipo: Journal Article
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1991
URL: http://purl.umn.edu/22624

Commercialization of Agriculture Under Population Pressure: Effects on Production, Consumption, and Nutrition in Rwanda
Provedor de dados: 31
Autores: von Braun,   Joachim; de Haen,   Hartwig; Blanken,   Juergen.
Rapid population growth in agroecologies that are already under high population pressure poses a major challenge for development policy. It becomes an even greater challenge in complex agroecologies where little new technology for rapid agricultural expansion is available. The mountain zones of the Zaire-Nile Divide in Central Africa present an example of such a challenging environment where agriculture has encroached onto marginal zones, that is, water catchment areas and the last tropical forests of the area. This study by von Braun, de Haen, and Blanken highlights the potentials of agricultural development for the employment, income, and consumption of the poor, but also stresses that nonagricultural rural growth and employment expansion are key to...
Tipo: Report
Palavras-chave: Agriculture and State; Rwanda; Produce trade; Government policy; Exports; Food supply; Nutrition policy; Population; Food Consumption/Nutrition/Food Safety; International Development.
Ano: 1991
URL: http://purl.umn.edu/42154

Demand relationships among fresh fruit and juices in Canada
Provedor de dados: 31
Autores: Lee,   Jonq-Ying.
Tipo: Report
Palavras-chave: Fresh fruit; Juices; Demand; Canada; Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/52715

Northeast Dairy Cooperative Financial Performance, 1984-1990
Provedor de dados: 31
Autores: Henehan,   Brian M.; Anderson,   Bruce L.
Tipo: Working Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/121486

PUBLIC POLICY EDUCATION FOR ENVIRONMENTAL AND ECONOMIC DEVELOPMENT ISSUES
Provedor de dados: 31
Autores: Barron,   James C.
Tipo: Conference Paper or Presentation
Palavras-chave: Environmental Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/17476

A Nonparametric Analysis of Cost Minimization and Profit Maximization Behavior for a Sample of Kansas Farms
Provedor de dados: 31
Autores: Moghnieh,   Ghassan A.; Featherstone,   Allen M.; Goodwin,   Barry K.
This study investigates nonparametrically the optimizing behavior of a sample of 289 Kansas farms under profit-maximizing and cost-minimizing hypotheses. The results do not support strict adherence to either optimization hypothesis. However, evidence against cost-minimizing behavior seems to be far less substantial than that against profit-maximizing behavior.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural Finance; Farm Management.
Ano: 1991
URL: http://purl.umn.edu/118197

Retail Trade Area Analysis Ashley North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
This report is intended to provide an in-depth trade area analysis of Ashley, North Dakota. Specific analyses included determining Ashley's main and greater trade areas, identifying the demographic profile of Ashley shoppers, examining important and less important services for patron shoppers of Ashley, identifying neighboring cities that area shoppers patronize, determining distances area shoppers traveled to Ashley, and listing popular newspapers and radio stations among area residents. Current trade area information for Ashley was obtained from a statewide trade area survey conducted by the Department of Agricultural Economics at North Dakota State University in 1989. Recent trends (1980 to 1989) in Ashley population, retail sales, per capita income,...
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Financial Economics.
Ano: 1991
URL: http://purl.umn.edu/51271

AGGREGATE ANALYSIS OF SITE-SPECIFIC POLLUTION PROBLEMS: THE CASE OF GROUNDWATER CONTAMINATION FROM AGRICULTURE
Provedor de dados: 31
Autores: Segerson,   Kathleen; Opaluch,   James J.
Control of nonpoint sources of pollution has traditionally been within the domain of local decision makers in recognition of the critical importance of site-specific issues.  More recently attention has turned to the issue of what can and should be done at the regional or national level, while recognizing the importance of site-specific attributes.  This paper describes and illustrates an approach for analysis of nonpoint pollution problems that focuses jointly at the aggregate and disaggregate levels of the problem.  The approach is based on linking two tools of analysis, the microparameter distribution model and the Geographical Information Systems (GIS).  Although there are significant challenges to be overcome in implementing such an approach, linkage...
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/28818

ADAPTING AGRICULTURE AND RURAL VIRGINIA TO ENVIRONMENTAL RESTRAINTS
Provedor de dados: 31
Autores: Batie,   Sandra S.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/14814

Retail Trade Area Analysis Larimore, North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
This report is intended to provide an in depth trade area analysis of Larimore, North Dakota. Specific analyses included determining Larimore's main and greater trade areas, identifying the demographic profile of Larimore shoppers, examining important and less important services for patron shoppers of Larimore, identifying neighboring cities that area shoppers patronize, determining distances area shoppers traveled to Larimore, and listing popular newspapers and radio stations among area residents. Current trade area information for Larimore was obtained from a statewide trade area survey conducted by the Department of Agricultural Economics at North Dakota State University in 1989. Recent trends (1980 to 1989) in Larimore population, retail sales, per...
Tipo: Report
Palavras-chave: Community/Rural/Urban Development.
Ano: 1991
URL: http://purl.umn.edu/51238

Retail Trade Area Analysis Wishek North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
This report is intended to provide an indepth trade area analysis of Wishek, North Dakota. Specific analyses included determining Wishek's main and greater trade areas, identifying the demographic profile of Wishek shoppers, examining important and less important services for patron shoppers of Wishek, identifying neighboring cities that area shoppers patronize, determining distances area shoppers traveled to Wishek, and listing popular newspapers and radio stations among area residents. Current trade area information for Wishek was obtained from a statewide trade area survey conducted by the Department of Agricultural Economics at North Dakota State University in 1989. Recent trends (1980 to 1989) in Wishek population, retail sales, per capita income,...
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Financial Economics.
Ano: 1991
URL: http://purl.umn.edu/51288

Econometric analysis of imperfect competition and implications for trade research
Provedor de dados: 31
Autores: Perloff,   Jeffrey M.
Tipo: Working or Discussion Paper
Palavras-chave: Commerce; Commercial policy; Game theory; Marketing; International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/47252

The Impact of Agricultural Marketing Cooperatives on Market Performance in U.S. Food Manufacturing Industries for 1982
Provedor de dados: 31
Autores: Petraglia,   Lisa M.; Rogers,   Richard T.
This research examines market performance in the U.S. food manufacturing product classes for 1982 and the effect cooperatives have as market participants.  It addresses the public policy concern that cooperatives may obtain market power through favorable public policy and may exercise that market power to the detriment of society through under price-enhancement.  Because of this concern the partial antitrust exemption granted cooperatives under the Capper-Volstead Act of 1992 is likely to re-emerge on the public policy agenda.  A basic industrial organization structure-performance model extended by the theory of cooperatives is used to test the effect of cooperatives on market performance, here measured as the market's price-cost margin.  After controlling...
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness; Industrial Organization.
Ano: 1991
URL: http://purl.umn.edu/25175

END MATERIALS
Provedor de dados: 31
Includes:  Guidelines for Submitting Manuscripts; Membership Information; Back Cover
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/32629

END MATERIALS
Provedor de dados: 31
Includes: Guidelines for Manuscript Submission; Back Cover
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/29014

AN ASSESSMENT OF DEFICIENCY PAYMENTS TO MILK PRODUCERS IN JAPAN
Provedor de dados: 31
Autores: Suzuki,   Nobuhiro; Judson,   D.H.
This article represents an econometric assessment of the role that deficiency payments have played in developing the Japanese fluid and manufacturing milk markets and the potential effects of reducing deficiency payments on these milk markets. Principal findings are: (a) an historical simulation of the model without deficiency payments and import quotas indicates that these measures have reduced the variation in milk prices that would have otherwise occurred under this model, and price supports through these measures have resulted in greater milk production than would have accrued without price supports; and (b) a reduction in deficiency payments beginning in 1998 results in a decrease in milk prices and manufacturing milk supply and an increase in fluid...
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy; Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/32619

AN EVALUATION OF COST OF PRODUCTION INFORMATION USAGE BY COUNTY AGENTS
Provedor de dados: 31
Autores: Bailey,   DeeVon; Eck,   Douglas W.; Glover,   Terrence F.
County agents receive cost of production information primarily from state extension services and then disseminate it to agricultural producers. A survey gathered data on agent usage of this information. A Poisson regression analysis using count data was performed to determine the factors influencing the number of times county agents directly referred to published cost of production (enterprise budget) information in a year. The agent's understanding of budget information use in management decisions, the availability of budgets, and his/her receiving the budgets in multiple forms (e.g., sheets, booklets, or software) had significant positive impacts on the use of budgets by the agent.
Tipo: Journal Article
Palavras-chave: Production Economics; Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/30042

A BIOECONOMIC ANALYSIS OF THE NORTHERN ANCHOVY
Provedor de dados: 31
Autores: Conrad,   Jon M.
A simple bioeconomic model was specified and estimated for the central subpopulation of the northern anchovy (Engraulis mordax). Net population growth was described by a power function and harvest by the U. S. reduction fleet was modelled by an exponential production function. When incorporated into a bioeconomic model they allowed the derivation of two explicit functions, Y = Ö(X) and Y = Ø(X) which could be used to depict the bioeconomic optimum. The roots of Ö(X) have important economic interpretations and can be used to characterize the economic status of the fishery. The positively-sloped segment of the Ö(X) curve may be used as an approximately-optimal adaptive management policy.  For the set of bioeconomic parameters circa 1990, anchovy biomass...
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/7266

Farm Structure: Concept and Definition
Provedor de dados: 31
Autores: Stanton,   Bernard F.
Tipo: Working Paper
Palavras-chave: Farm Management.
Ano: 1991
URL: http://purl.umn.edu/121378

Differences Between Buyers and Nonbuyers of Organic Produce and Willingness to Pay Organic Price Premiums
Provedor de dados: 31
Autores: Jolly,   Desmond A.
Tipo: Journal Article
Palavras-chave: Agribusiness; Food Consumption/Nutrition/Food Safety.
Ano: 1991
URL: http://purl.umn.edu/62304

Information System Adoption and Use in Local Cooperatives
Provedor de dados: 31
Autores: King,   Robert P.; Shuker,   Iain G.
Advances in information technology can help local cooperatives remain competitive in a changing agricultural sector. This study examines the adoption and use of information systems by local farm supply and grain cooperatives and the relationships between information system characteristics and cooperative performance. Cooperative characteristics were found to have a significant effect on information selection, overall cost structure, and the allocation of information system expenses. Information system selection was also related to operating performance. In all size categories, farm supply cooperatives that owned computers had better operating performance than those that did not. In contrast, operating performance was not related to computer ownership in...
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/46260

ECONOMIC MODELING OF FARM PRODUCTION AND CONSERVATION DECISIONS IN RESPONSE TO ALTERNATIVE RESOURCE AND ENVIRONMENTAL POLICIES
Provedor de dados: 31
Autores: Ellis,   John R.; Hughes,   David W.; Butcher,   Walter R.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy; Farm Management.
Ano: 1991
URL: http://purl.umn.edu/28822

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes: Front Cover; Editorial Information; Contents Pages
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/32614

SOUTHEASTERN MINNESOTA FARM BUSINESS MANAGEMENT ASSOCIATION 1990 ANNUAL REPORT
Provedor de dados: 31
Autores: Olson,   Kent D.; Westman,   Lorin L.
Tipo: Working or Discussion Paper
Palavras-chave: Farm Management.
Ano: 1991
URL: http://purl.umn.edu/13076

CONSUMER WILLINGNESS TO PAY FOR PESTICIDE-FREE FRESH PRODUCE
Provedor de dados: 31
Autores: Misra,   Sukant K.; Huang,   Chung L.; Ott,   Stephen L.
The study uses primary data collected from a survey conducted in Georgia to analyze consumer preferences for testing and certification of fresh produce and consumers' willingness to pay for fresh produce that is certified as free of pesticide residues (FPR). An ordered probit model was estimated to identify the impacts of various exogenous variables on the probability of consumers' willingness to pay for a number of alternative price premiums. The results indicate that consumers' willingness to pay differs with respect to a number of factors. The study concludes that most of the consumers recommend testing and certification, but they oppose large price markups for certified-FPR fresh produce.
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics; Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/32604

PUBLIC LAND POLICY AND THE VALUE OF GRAZING PERMITS
Provedor de dados: 31
Autores: Torell,   L. Allen; Doll,   John P.
This article provides an empirical test of the traditional theory of permit value and investigates the impact of recent changes in public land policies on the value of grazing permits. Results suggest that the cost advantage for grazing on public lands has been capitalized into substantial permit values, but other economic and hedonic factors influencing land prices also have contributed to the value of grazing permits. Public land grazing permits have fallen in value relative to deeded land as grazing fees have increased and as assurance has waned that public land policies will continue to be favorable to ranchers.
Tipo: Journal Article
Palavras-chave: Land Economics/Use.
Ano: 1991
URL: http://purl.umn.edu/32630

ALTERNATIVE MARKETING STRATEGIES FOR FEEDER PIG FINISHERS: FUTURES, OPTIONS, AND SIMPLE DECISION RULES
Provedor de dados: 31
Autores: Lawrence,   John D.; Roth,   Jennifer.
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries; Marketing.
Ano: 1991
URL: http://purl.umn.edu/13398

PROFILE OF THE U.S. FOOD DISTRIBUTION SYSTEM GOING INTO THE 1990S
Provedor de dados: 31
Autores: Gallo,   Anthony E.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/26480

SAEA EDITOR'S REPORT, FEBRUARY 1991
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/30302

Relaciones financieras internacionales y estabilización: una propuesta para el manejo de la deuda externa peruana
Provedor de dados: 31
Autores: Larrain,   Felipe; Sachs,   Jeffrey.
El documento plantea estrategia para el tratamiento progresivo de la deuda externa, sustentada en el reconocimiento de que, en las actuales condiciones, la deuda peruana con el sistema financiero internacional es impagable, por lo cual resulta imprescindible reducirla a un 50% de su valor nominal. La propuesta está enmarcada en el programa de estabilización elaborado en GRADE por un equipo de profesionales que incluyó a los autores.
Tipo: Working or Discussion Paper
Palavras-chave: Deuda externa; External debt; Peru; Financial Economics; International Relations/Trade; F34.
Ano: 1991
URL: http://purl.umn.edu/42263

Retail Trade Area Analysis Garrison North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
This report is intended to provide an indepth trade area analysis of Garrison, North Dakota. Specific analyses included determining Garrison's main and greater trade areas, identifying the demographic profile of Garrison shoppers, examining important and less important services for patron shoppers of Garrison, identifying neighboring cities that area shoppers patronize, determining distances area shoppers traveled to Garrison, and listing popular newspapers and radio stations among area residents. Current trade area information for Garrison was obtained from a statewide trade area survey conducted by the Department of Agricultural Economics at North Dakota State University in 1989. Recent trends (1980 to 1989) in Garrison population, retail sales, per...
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Financial Economics.
Ano: 1991
URL: http://purl.umn.edu/51283

A SIMPLE PROCEDURE TO EVALUATE EX-ANTE PRODUCER WELFARE UNDER PRICE UNCERTAINTY
Provedor de dados: 31
Autores: Tsur,   Yacov.
We propose a simple and tractable procedure for evaluating producer welfare under price uncertainty. These properties are achieved at the cost of assuming constant absolute risk aversion, where risk attitude depends on the stock of wealth but not on the flow of income. Numerical examples corroborate the procedure's properties; the validity of the constant absolute risk aversion case as an approximation is discussed.
Tipo: Working or Discussion Paper
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1991
URL: http://purl.umn.edu/13624

Economic Impact of Irrigation in the Buford-Trenton Irrigation District in 1990
Provedor de dados: 31
Autores: Baltezore,   James F.; Bangsund,   Dean A.; Leitch,   Jay A.; Leistritz,   F. Larry.
Tipo: Technical Report
Palavras-chave: Environmental Economics and Policy; Land Economics/Use.
Ano: 1991
URL: http://purl.umn.edu/121417

Management Practices and Financial Performance of Agricultural Cooperatives: A Partial Adjustment Model
Provedor de dados: 31
Autores: Azzam,   Azzeddine M.; Turner,   Michael S.
This paper uses the Nerlovian partial adjustment model to test the hypothesis that the rate of a cooperative's adjustment to a desired financial position is partially determined by its management practices. The results indicate that management practices that are board responsibilities are not contributing to the speed of adjustment in reaching the desired financial performance, which is the responsibility of the board of directors. But management, when independently pursuing management's responsibility or when working with that board on shared responsibility, does contribute to the speed of adjustment toward the desired financial goal.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/46256

YIELD AND INCOME RISK REDUCTION UNDER ALTERNATIVE CROP INSURANCE AND DISASTER ASSISTANCE DESIGNS
Provedor de dados: 31
Autores: Carriker,   Gordon L.; Williams,   Jeffery R.; Barnaby,   Glenn Arthur, Jr.; Black,   J. Roy.
This study compares the effectiveness of five crop insurance/disaster assistance plans: an individual farm-yield insurance plan similar to the current Federal Crop Insurance Corporation multiperil program, two area-yield insurance plans, a farm-yield disaster assistance plan, and an area-yield disaster assistance plan. These methods are examined for reduction in yield and gross income variability with and without participation in the government deficiency payment program using farm-level yield data from 98 dryland wheat farms and 38 dryland corn farms in Kansas. Although individual farm-yield insurance is complex, suffers from moral hazard and adverse selection problems, and is likely to be the most expensive to administer, it provides more yield and gross...
Tipo: Journal Article
Palavras-chave: Risk and Uncertainty.
Ano: 1991
URL: http://purl.umn.edu/32588

Environmental Protection Through Local Land Use Controls
Provedor de dados: 31
Autores: Allee,   David J.
Local land use controls seek to limit the impact of one neighbor on another sometimes protecting natural resource environmental values. Federal and State programs to protect environmental values cannot do everything. They leave a residual risk of environmental loss that local people may want to address. Land use controls are traditionally zoning, subdivision control, and site plan review. These and other local controls have advantages in reducing risk, particularly when they are a part of an integrated approach that makes full use of the advantages at each level of government. Aspects of partnership approaches are discussed. In 1989, 449 members of the New York Planning Federation were asked to indicate if they used land use controls to reduce...
Tipo: Working Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/121377

Front Materials
Provedor de dados: 31
Includes: Front Cover; Editorial Information; A Message from the Publisher; Contents Page
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/46263

Spatial Equilibrium Analysis of the World Durum Industry Under Alternative Export Policies
Provedor de dados: 31
Autores: Golz,   Joel T.; Koo,   Won W.; Yang,   Seung-Ryong.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/23473

INTERNATIONAL EFFECTS OF CANADA'S WESTERN GRAIN STABILIZATION PROGRAM
Provedor de dados: 31
Autores: Cameron,   D. Lynne; Spriggs,   John.
Canada's Western Grain Stabilization program is analyzed to determine the extent to which it acts as a buffer between the Canadian grains economy and the international grains economy. A dynamic stochastic simulation model is constructed to examine how Canada's Western Grain Stabilization Program modifies the transmission of: (a) domestic yield variability to the foreign grain market and (b) foreign demand variability to the domestic grains market. With respect to (a), the program was found to aggravate international uncertainty only very slightly while with respect to (b) it was found to substantially reduce domestic uncertainty.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy; International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/32591

IMPACT OF REDUCING FEDERAL ORDER CLASS I DIFFERENTIAL ON REPRESENTATIVE TEXAS AND NEW MEXICO DAIRY FARMS
Provedor de dados: 31
Autores: Outlaw,   Joe L.; Knutson,   Ronald D.; Schwart,   Robert B., Jr.; Holt,   John; Richardson,   James W.; Garis,   Dalton H.
The General Accounting Office (GAO) recommended that the USDA substantially reduce or eliminate the extent of price discrimination practiced under federal milk marketing orders. The purpose of this study was to quantify the impacts of alternative means of implementing the GAO proposal on the economic viability of Texas and New Mexico dairy farms. Five dairy farms were simulated for six years under the current dairy policy and five alternative proposals. Results of the analyses indicate that large New Mexico dairies can remain economically viable under all of the alternatives. On the other hand, federal order policy changes would accelerate the loss of equity for moderate size Texas dairy farms.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 1991
URL: http://purl.umn.edu/30058

Selected Practices and the Financial Indicators of Sustainable Versus Conventional Farms in North Dakota
Provedor de dados: 31
Autores: Stearns,   Larry D.; Dahl,   Bruce L.; Goreham,   Gary A.; Jacobsen,   Roy M.; Sell,   Randall S.; Watt,   David L.; Youngs,   George A., Jr.
Tipo: Technical Report
Palavras-chave: Farm Management.
Ano: 1991
URL: http://purl.umn.edu/119434

The Future of U.S. Foreign Economic Assistance
Provedor de dados: 31
Autores: Ruttan,   Vernon W.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/7514

A Survey of Estimated Risks of Human Illness and Costs of Microbial Foodborne Disease
Provedor de dados: 31
Autores: Roberts,   Tanya.
Tipo: Journal Article
Palavras-chave: Food Consumption/Nutrition/Food Safety; Health Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/61452

A FRAMEWORK FOR ANALYSIS OF ALTERNATIVE RESTRUCTURING STRATEGIES EMPWYED BY LARGE FOOD MANUFACTURERS IN THE 1980s
Provedor de dados: 31
Autores: Ding,   John Y.; Caswell,   Julie A.
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness; Industrial Organization.
Ano: 1991
URL: http://purl.umn.edu/116101

RURAL HOUSEHOLD DATA COLLECTION IN DEVELOPING COUNTRIES: DESIGNING INSTRUMENTS AND METHODS FOR COLLECTING FARM PRODUCTION DATA
Provedor de dados: 31
Autores: Rozelle,   Scott.
This paper aids researchers who are conducting microeconomic work in developing countries to more effectively collect farm production data. The discussion focuses on helping the researcher who has fairly well-defined research ideas to better visualize the steps that are necessary for collecting farm production data by raising conceptual and organizational issues that will be faced during the collection process. A wide range of data collection strategies is reviewed for both data-intensive studies that concentrate on production and technological issues, as well as less intensive studies that are only interested in measuring the contribution of farming activities to overall household income. Both survey-based and recordkeeping methodologies are discussed and...
Tipo: Working or Discussion Paper
Palavras-chave: Consumer/Household Economics; Research Methods/ Statistical Methods.
Ano: 1991
URL: http://purl.umn.edu/7267

PHYSICAL AND ECONOMIC MODEL INTEGRATION FOR MEASUREMENT OF THE ENVIRONMENTAL IMPACTS OF AGRICULTURAL CHEMICAL USE
Provedor de dados: 31
Autores: Antle,   John M.; Capalbo,   Susan Marie.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/28811

Competitiveness of Broiler Producers in North America Under Alternative Free Trade Scenarios
Provedor de dados: 31
Autores: Golz,   Joel T.; Koo,   Won W.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/23395

Retail Trade Area Analysis Beulah North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
Tipo: Technical Report
Palavras-chave: Consumer/Household Economics; Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/119429

EFFECTS OF AN EXPORT SUBSIDY ON THE U.S. COTTON INDUSTRY
Provedor de dados: 31
Autores: Duffy,   Patricia A.; Wohlgenant,   Michael K.
In this study, the effects of an export subsidy for cotton are analyzed using a linear elasticity model. The study explicitly addresses the interaction of current domestic policies with the proposed export subsidy. An export subsidy may be a successful method of reducing the government costs of the cotton program.
Tipo: Journal Article
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/30050

PREFERENCES OF MID-ATLANTIC SEAFOOD BUYERS TOWARD FARM-RAISED HYBRID STRIPED BASS
Provedor de dados: 31
Autores: Halbrendt,   Catherine K.; Bacon,   J. Richard; Wirth,   Ferdinand F.
A market survey of three mid-Atlantic food-fish market levels was conducted to provide information on finfish buyers' market characteristics, finfish attribute preferences, and buyers' attitudes toward farm-raised hybrid striped bass. Results showed that most firms are located in the suburban areas, and they purchased their fish from producers and wholesalers. Quality was rated as the most important finfish attribute; and, aside from restaurants, buyers are generally familiar with hybrid striped bass and indicated that it could easily be substituted for wild striped bass. Most buyers were either not sure or feel hybrid striped bass could not substitute for other fish species although they all expressed a willingness to offer farm-raised hybrid striped...
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics.
Ano: 1991
URL: http://purl.umn.edu/27609

Principles of Institutionalist Research Methodology
Provedor de dados: 31
Autores: Cohen,   Mark.
Tipo: Working Paper
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1991
URL: http://purl.umn.edu/121477

DIFFERENTIAL RETURNS TO LABOR IN INDIAN AGRICULTURE
Provedor de dados: 31
Autores: Abler,   David G.
This article explores the speed of adjustment in Indian agricultural labor markets to changing economic circumstances.  Agricultural wages in sixteen states during 1970-86 are analyzed.  Results indicate that agricultural wages adjust quickly toward their long-run values, completing about one-fifth to one-fourth of the adjustment per year.  Results also suggest strong linkages between the agricultural and nonagricultural labor markets.  Interstate agricultural productivity differences have risen substantially in the last twenty-five years, and many feel this has led to a disintegration of the agricultural labor market.  The findings suggest an indirect integration may be occurring through migration to nonagriculture.
Tipo: Journal Article
Palavras-chave: Labor and Human Capital.
Ano: 1991
URL: http://purl.umn.edu/28820

HEALTH, SANITARY AND PHYTOSANITARY BARRIERS TO FREE TRADE
Provedor de dados: 31
Autores: Schramm,   Robert.
Tipo: Conference Paper or Presentation
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/17470

Retail Trade Area Analysis Mayville-Portland North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
This report is intended to provide an indepth trade area analysis of Mayville-Portland, North Dakota. Specific analyses included determining Mayville-Portland's main and greater trade areas, identifying the demographic profile of Mayville-Portland shoppers, examining important and less important services for patron shoppers of Mayville-Portland, identifying neighboring cities that area shoppers patronize, determining distances area shoppers traveled to Mayville-Portland, and listing popular newspapers and radio stations among area residents. Current trade area information for Mayville-Portland was obtained from a statewide trade area survey conducted by the Department of Agricultural Economics at North Dakota State University in 1989. Recent trends (1980...
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Farm Management.
Ano: 1991
URL: http://purl.umn.edu/51307

Economic Impact of Leafy Spurge in Montana, South Dakota, and Wyoming
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry.
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/23433

Recognizing the Effects of Government Programs in Developing Cost and Returns Statements
Provedor de dados: 31
Autores: Stanton,   Bernard F.
Tipo: Working Paper
Palavras-chave: Agricultural and Food Policy; Agricultural Finance.
Ano: 1991
URL: http://purl.umn.edu/121379

ENTREPRENEURSHIP, SANCTIONS, AND LABOR CONTRACTING
Provedor de dados: 31
Autores: Polopolus,   Leo C.; Emerson,   Robert D.
Entrepreneurs innovate their individual business organizations not only to deal with production and price risks, but also to cope with the risk of sanctions or penalties imposed by society's laws and regulations.  More specifically, labor-intensive agricultural firms, faced with potentially large fines for violation of immigration and labor laws, increasingly modify the organization of their firms by shifting the management of routine seasonal labor jobs to independent farm labor contractors.  The use of labor contracting is further intensified because of the effectiveness of labor contractors in the recruitment of illegal aliens.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/30283

STRUCTURAL CHANGES IN THE UNITED STATES GRAIN MARKETING SYSTEM
Provedor de dados: 31
Autores: Dahl,   Reynold P.
Tipo: Working or Discussion Paper
Palavras-chave: Industrial Organization; Marketing.
Ano: 1991
URL: http://purl.umn.edu/13923

A POSITIVE THEORY OF AGRICULTURAL PROTECTION
Provedor de dados: 31
Autores: Swinnen,   Johan F.M.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy; Political Economy.
Ano: 1991
URL: http://purl.umn.edu/6851

Geographic Deregulation of North Dakota's Commercial Banks: What Is the Potential?
Provedor de dados: 31
Autores: Gustafson,   Cole R.; Solemsaas,   Peter J.
Tipo: Working or Discussion Paper
Palavras-chave: Financial Economics.
Ano: 1991
URL: http://purl.umn.edu/23292

POSTERS PRESENTED, ANNUAL MEETING, SAEA, FORT WORTH, TEXAS, FEBRUARY 1991
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/30307

EC Agricultural Policy in 1990/91: Growing Need for a Real Policy Reform
Provedor de dados: 31
Autores: Manegold,   Dirk.
The paper is on three subjects. Topical information is given on the development and management of major EC agricultural markets and on recent changes in the Common Agricultural Policy. The EC's inflexible position in the GATT negotiations which caused the Uruguay Round to fail is dealt with and the present situation of the agriculture and food economy in East Germany is considered.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 1991
URL: http://purl.umn.edu/12343

SHELF SPACE ALLOCATION IN THE PRODUCE DEPARTMENT: IMPLICATIONS FOR MARKETING SPECIALTY PRODUCE
Provedor de dados: 31
Autores: Beamer,   Bobby G.; Preston,   Warren P.
In recent years, fresh fruits and vegetables have attracted attention as potential alternative agricultural enterprises. The produce section also has grown in importance in the supermarket industry. Yet, there is little known about the produce shelf space allocation process within supermarket chains.  This research describes the organization of fresh produce marketing within retail supermarket chains. Implications are derived for market penetration by new produce suppliers, particularly growers of specialty produce items. Results are reported form personal interviews conducted with the person most responsible for produce merchandising within each of 17 supermarket chains operating in the Virginia area.
Tipo: Journal Article
Palavras-chave: Marketing.
Ano: 1991
URL: http://purl.umn.edu/27500

North Dakota Crop Production Economics in 1991
Provedor de dados: 31
Autores: Baltezore,   James F.; Olson,   Frayne E.; Gustafson,   Cole R.; Saxowsky,   David M.; Leistritz,   F. Larry.
Tipo: Working or Discussion Paper
Palavras-chave: Production Economics.
Ano: 1991
URL: http://purl.umn.edu/23244

STRUCTURAL CHANGES IN MEAT PACKING AND PROCESSING: THE PORK SECTOR
Provedor de dados: 31
Autores: Karlson,   Nicholas; Eidman,   Vernon R.
Tipo: Working or Discussion Paper
Palavras-chave: Industrial Organization; Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/13753

THE POLITICAL ECONOMY OF WATER QUALITY PROTECTION FROM AGRICULTURAL CHEMICALS
Provedor de dados: 31
Autores: Abler,   David G.; Shortle,   James S.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/28825

Impacts of Sustainable Agriculture on North Dakota Rural Communities
Provedor de dados: 31
Autores: Dahl,   Bruce L.; Goreham,   Gary A.; Jacobsen,   Roy M.; Sell,   Randall S.; Stearns,   Larry D.; Watt,   David L.; Youngs,   George A., Jr.
Tipo: Working or Discussion Paper
Palavras-chave: Community/Rural/Urban Development; Farm Management; Resource /Energy Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/23139

GUIDELINES FOR WESTERN JOURNAL OF AGRICULTURAL ECONOMICS AUTHORS
Provedor de dados: 31
Autores: LaFrance,   Jeffrey T.; Watts,   Myles J.
This article explains the current editorial procedures and policies of the Western Journal of Agricultural Economics. The contents should be of interest both to readers and to authors who plan to submit manuscripts to the Journal. The current editorial policy of the Journal is discussed, the review and publication process is explained, and detailed guidelines for the proper preparation of manuscripts for the Journal are presented.
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/32598

PRICE TRANSMISSION IN THE CATFISH INDUSTRY WITH SPECIFIC EMPHASIS ON THE ROLE OF PROCESSING COOPERATIVES
Provedor de dados: 31
Autores: Nyankori,   James Cyprian Okuk.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/30289

AN INTERDISCIPLINARY FRAMEWORK FOR THE ANALYSIS OF FOODBORNE DISEASE
Provedor de dados: 31
Autores: Steahr,   Thomas E.; McMullin,   Pamela.
Tipo: Working or Discussion Paper
Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 1991
URL: http://purl.umn.edu/116100

Nonconvexity, efficiency and equilibrium in exhaustible resource depletion
Provedor de dados: 31
Autores: Fisher,   Anthony C.; Karp,   Larry S.
We reconsider the problem of inefficiency and nonexistence of a competitive equilibrium in exhaustible resource markets where extraction costs are nonconvex. The existence of a backstop technology (which induces a flat portion of the industry demand curve) restores both existence and efficiency, provided that the backstop price is sufficiently low. If firms face even a small amount of uncertainty regarding their rivals' stocks, a backstop technology is sufficient to restore existence of competitive equilibrium, even if the backstop price is very high. In this case, however, the competitive equilibrium is not efficient.
Tipo: Working or Discussion Paper
Palavras-chave: Exhaustible resource; Nonconvex costs; Existence of competitive equilibrium; International Relations/Trade; 721.
Ano: 1991
URL: http://purl.umn.edu/6118

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes: Front Cover, Contents Page
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/28810

The Future of the Common Agricultural Policy
Provedor de dados: 31
Autores: Sturgess,   Ian M.
This article summarises the forces for change in the Common Agricultural Policy of the European Economic Community and the political limits upon it, together with some recent developments which contribute to their understanding. The emphasis in the paper, as in Community politics, is on budgetary and environmental pressures rather than on issues of efficiency or international trade. The institutions and shibboleths which encourage the conservation of a policy which is in most respects inefficient, inequitable and ineffective are explained, with particular attention to the processes of fixing prices and budgets and the profoundly different objectives of Community member countries.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 1991
URL: http://purl.umn.edu/12346

U.S. Wheat Price Dynamics and the Export Enhancement Program
Provedor de dados: 31
Autores: Yang,   Seung-Ryong; Johnson,   D. Demcey; Koo,   Won W.
Tipo: Technical Report
Palavras-chave: Crop Production/Industries; International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/121407

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes: Front Cover Page; Officers 1990-1991; Contents Page
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/27502

Retail Trade Area Analysis Rugby North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
Tipo: Technical Report
Palavras-chave: Community/Rural/Urban Development.
Ano: 1991
URL: http://purl.umn.edu/119435

INSTITUTIONAL INNOVATION AND ENVIRONMENTAL QUALITY
Provedor de dados: 31
Second Annual Conference on Agricultural Policy and the Environment; Proceedings of a Conference Sponsored by University of Minnesota, Center for International Food and Agricultural Policy; Agricultural Development Regional Agency (ESAV); University of Padova; Lake Itasca, Minnesota, September 22-29, 1990, Volume III  Contents:  Institutional Arrangements for Managing Water Conflicts and the Role of Transaction Costs, by K. William Easter  Incentives for Nonpoint Pollution Control: An Approach Based on a Principal-Agent Model, by Cesare Dosi and Michele Moretto  Technical and Institutional Innovation in a Bureaucratic Setting: U.S. Land Conservation Policy and the Conservation Reserve, by C. Ford Runge and Vernon W. Ruttan  Institutional Innovation in...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; Institutional and Behavioral Economics.
Ano: 1991
URL: http://purl.umn.edu/14237

A USER'S GUIDE TO SMALLP - VERSION 7.0 A MICRO-COMPUTER BASED MATHEMATICAL PROGRAMMING ALGORITHM
Provedor de dados: 31
Autores: Fuller,   Earl I.
Tipo: Working or Discussion Paper
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1991
URL: http://purl.umn.edu/13499

Meeting the Need: A Summary and Evaluation of NY FarmNet
Provedor de dados: 31
Autores: Brake,   John R.; Phelan,   Bill.
New York FarmNet, a state supported, toll-free, phone help-line for farmers began in March 1986 in response to the farm financial crisis. Its purpose included providing information/refelTal, individualized business/financial analysis and a general safety net for farm families, From March 1986 through March 1991 FmmNet received 3853 calls and assigned 534 consultants to work one-to-onc with fm'm families experiencing severe problems. A summm'y of caller characteristics revealed that slightly over half of callers were males, and nearly all were owners or operators rather than farm workers. Each year caller fmm size averaged between 230 and 320 acres, but the range was from one acre to over 4000 acres. Years of fm'ming experience each year averaged 16 to 23...
Tipo: Working Paper
Palavras-chave: Farm Management.
Ano: 1991
URL: http://purl.umn.edu/123095

PRINCIPLES AND TECHNIQUES OF PUBLIC POLICY EDUCATION LEARNED FROM ELEVEN INNOVATIVE PROJECTS
Provedor de dados: 31
Autores: Hahn,   Alan J.; Greene,   Jennifer; Cocchini,   Marianne; Kolb,   Darl; Waterman,   Carla.
Tipo: Conference Paper or Presentation
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/17469

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes: Front Cover; Editorial Information; Contents Page
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/32632

A Review of Recent Developments in Japanese Agriculture and Agricultural Policy
Provedor de dados: 31
Autores: Kobayashi,   S.; Morison,   Julian B.; Riethmuller,   Paul C.
This paper aims to review major recent developments in Japanese agriculture policy and to evaluate what these changes are likely to mean for the agricultural sector. An overview is provided of the Japanese economy, the position of agriculture in the economy and some of the important characteristics of Japanese farm households. The discussion then focuses on trade related policy developments, particularly those that have received most attention outside Japan. Recent important policy developments are then described for the rice industry, the focus of foreign criticism of Japan's agricultural policies, and the beef industry, an example of an industry to have recently lost protection against imports.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 1991
URL: http://purl.umn.edu/12388

UNIVERSITIES AND AID: A HISTORY OF THEIR PARTNERSHIP IN TECHNICAL ASSISTANCE FOR DEVELOPING COUNTRIES
Provedor de dados: 31
Autores: Jordahl,   Brian D.; Ruttan,   Vernon W.
Tipo: Working or Discussion Paper
Palavras-chave: International Development.
Ano: 1991
URL: http://purl.umn.edu/13618

NE-165 Case Study: The Fresh Company
Provedor de dados: 31
Autores: McLaughlin,   Edward W.
"Koninklijke Ahold nv" (Royal Dutch Ahold) was the leading food retailer in The Netherlands in 1990 with an approximately 36% share of the food and grocery market. Moreover, its four U. S. companies (Giant Food Stores, PA.; Bi-Lo, NC.; Finast, OR.; and Tops Friendly Markets, NY) ranked it number ten among the largest U. S. food retailers . Despite this dominance and obvious knowledge of food wholesale and retail distribution, Ahold had historically been unable to capture a satisfactory share of the fresh food business in The Netherlands. Yet this business represented approximately $7 billion in current business and, perhaps more importantly, was thought by many to hold the key to future success in the food industry. The case study documents the set of...
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/116098

Designing gradual transition to market economies
Provedor de dados: 31
Autores: Adelman,   Irma; Berck,   Peter; Vujovic,   Dusan.
Tipo: Working or Discussion Paper
Palavras-chave: Economic conditions; Income; Marketing; Prices; Socialism.
Ano: 1991
URL: http://purl.umn.edu/43669

CASE LAW APPROACH TO FAMILY POLICY
Provedor de dados: 31
Autores: Neale,   Joanna.
Tipo: Conference Paper or Presentation
Palavras-chave: Public Economics.
Ano: 1991
URL: http://purl.umn.edu/17465

FACTOR MARKET INCIDENCE OF AGRICULTURAL TRADE LIBERALIZATION: SOME ADDITIONAL RESULTS
Provedor de dados: 31
Autores: Hertel,   Thomas W.
Liberalization of trade implies changes in producer prices, which has consequences for farm income, agricultural employment and asset values. The relative incidence of the effect of changes in prices on fixed factors depends on the rclative magnitude of the Morishima elasticities of substitution in agricultural production.
Tipo: Journal Article
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/22929

Another Look at Price Levelling and Price Averaging in the Sydney Meat Market
Provedor de dados: 31
Autores: Griffith,   Garry R.; Green,   W.; Duff,   G.L.
Simultaneous equation techniques are used to re-examine the behaviour of monthly wholesale and retail price spreads for beef, lamb and pork in Sydney over the period 1971-1988, so as to understand the factors determining the relationships between the prices at the different market levels. Hypotheses tested relate to price levelling and price averaging, and to marketing cost and turnover effects. Using the preferred three-stage least squares estimates, price levelling is confirmed at both wholesale and retail for all meats, however contrary to earlier results there is no evidence of price averaging in any of the meats. Costs are only important determinants for beef at wholesale and lamb at retail, and only the beef and lamb wholesale spreads and the lamb...
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/12344

PEOPLE LEFT BEHIND: TRANSITIONS OF THE RURAL POOR
Provedor de dados: 31
Autores: Molnar,   Joseph J.; Traxler,   Greg.
Compared to their urban counterparts, the rural poor are more likely to be employed, more apt to be members of married-couple families, less likely to be children, less likely to be minority, and more likely to have assets but a negative income.  This paper examines poverty rates and factors that affect mobility in and out of poverty among major categories of the rural poor.  Particular attention is paid to farm workers and the rural farm population in the South.  It endeavors to identify both structural conditions that perpetuate rural poverty and government interventions that ameliorate human suffering and break the cycle of poverty reproduction.
Tipo: Journal Article
Palavras-chave: Community/Rural/Urban Development.
Ano: 1991
URL: http://purl.umn.edu/30279

THE IMPORTANCE OF AND ECONOMIC MOTIVATION FOR THE INTERNATIONAL LICENSING OF BRANDED FOOD AND RELATED PRODUCTS
Provedor de dados: 31
Autores: Henderson,   Dennis R.; Sheldon,   Ian M.
Casual empiricism suggests that the international licensing of the production and marketing of branded food and related products may become an increasingly important aspect of the globalization of the food industry, particularly in sectors such as soft drinks, brewing and confectionery products.  For example, Coca-Cola and Pepsi-Cola both license the canning and distribution of their final products in overseas markets, Anheuser-Busch and Miller license production of various of their beer brands whilst Nestle chocolate products are manufactured under license in the United States by Hershey.  The purpose of this paper is twofold; first, in Section 1 empirical evidence on the extent of international licensing is presented and evaluated.  In particular, due to...
Tipo: Journal Article
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/26487

U.S. HAZELNUT MARKET TRENDS AND PERSPECTIVES FOR A MICHIGAN HAZELNUT INDUSTRY
Provedor de dados: 31
Autores: Cely,   Patricia.
The primary purpose of this paper was to provide potential Michigan growers with information on major trends and markets of the U.S. hazelnut industry. Another objective was to explore certain important factors. apparent challenges and possible opportunities for a potential Michigan hazelnut industry. In respect to the first goal, this paper analyzed major production and market trends for the Oregon hazelnut industry, which constitutes almost all of the U.S. hazelnut crop, and explored some inferences about future trends in this industry. Towards the second goal, some aspects were analyzed based on the best available, but rather fragmentary information from initial trials of hazelnut varieties suited to Michigan conditions and small initial onfarm...
Tipo: Thesis or Dissertation
Palavras-chave: Crop Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/11217

SECRETARY/TREASURER'S REPORT: 1990
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/30284

The Impact of Real Exchange Rate Misalignment and Instability on Macroeconomic Performance in Sub-Saharan Africa
Provedor de dados: 31
Autores: Ghura,   Dhaneshwar; Grennes,   Thomas J.
This study investigates the relationship between indicators of macroeconomic performance and real exchange rate (RER) misalignment and instability in Sub-Saharan Africa (SSA). Three measures of RER misalignment are used. There is ample evidence that countries which have pursued more predictable macroeconomic policies and lower levels of RER misalignment have experienced better economic performance. Also, it appears that higher levels of misalignments in the RER are accompanied by higher levels of macroeconomic instability. Empirical support is found for Edwards' model of the equilibrium RER and black market premia tend to show a greater degree of misalignment than alternative measures.
Tipo: Working or Discussion Paper
Palavras-chave: Financial Economics; International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/51146

FORECASTING AGRICULTURAL COMMODITY PRICES WITH LIMITED DATA SETS
Provedor de dados: 31
Autores: Jacque,   Andrew Eliel.
Many developing countries wish to, but do not publish forecasts of commodity prices.  One difficulty often cited is the length (shortness) of the data series.  This study tried to determine whether this was a valid reason.  Price data for two commodities in a specific country, where the problem is acknowledged were utilized in a case study approach.  Existing models were evaluated for applicability to the data series.  The identified models were estimated with estimation data and then while keeping the model parameters constant, prices were forecasted in the out-of-sample period. The error associated with the forecast of each model was calculated and the relationship between quantity of data and model accuracy evaluated.  The error values of all the models...
Tipo: Thesis or Dissertation
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/10998

Retail Trade Area Analysis New Town North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
This report is intended to provide an indepth trade area analysis of New Town, North Dakota. Specific analyses included determining New Town's main and greater trade areas, identifying the demographic profile of New Town shoppers, examining important and less important services for patron shoppers of New Town, identifying neighboring cities that area shoppers patronize, determining distances area shoppers traveled to New Town, and listing popular newspapers and radio stations among area residents. Current trade area information for New Town was obtained from a statewide trade area survey conducted by the Department of Agricultural Economics at North Dakota State University in 1989. Recent trends (1980 to 1989) in New Town population, retail sales, per...
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Financial Economics.
Ano: 1991
URL: http://purl.umn.edu/51269

Irrigation investment trends in Sri Lanka: new construction and beyond
Provedor de dados: 31
Autores: Aluwihare,   Parakrama B.; Kikuchi,   Masao.
Tipo: Book
Palavras-chave: Investment; Water management; Rehabilitation; Rice; Crop Production/Industries; Farm Management.
Ano: 1991
URL: http://purl.umn.edu/113725

LIVESTOCK DEVELOPMENT AND NATURAL RESOURCES USE:  A CASE STUDY OF BOTSWANA
Provedor de dados: 31
Autores: O'Connor,   Leslie Carole.
Pastoralism and communal livestock production are important economic activities in Sub-Saharan Africa. According to FAO production figures the number of cattle in two countries, Botswana and Namibia, outnumber the human population (FAO, 1989).  In Southern Africa, Botswana's agricultural sector is largely dependent on livestock, because most of the country lacks adequate rainfall for arable agriculture. A complicating factor is the unreliability of the rainfall and the potential for recurrent drought. Indeed, drought is considered a normal occurrence and farmers experience crop failure three or four years in every decade. Tyson, points out that the oscillations observed in past rainfall will likely continue into the future and that the rainfall averages...
Tipo: Thesis or Dissertation
Palavras-chave: Livestock Production/Industries; Resource /Energy Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/10971

Estimating the Accounting Profitability of Pooling Cooperatives
Provedor de dados: 31
Autores: Lerman,   Zvi; Parliament,   Claudia.
Tipo: Journal Article
Palavras-chave: Agribusiness; Marketing.
Ano: 1991
URL: http://purl.umn.edu/62306

Retail Trade Area Analysis Bottineau North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Bastow-Shoop,   Holly E.; Zetocha,   Dale F.
Tipo: Technical Report
Palavras-chave: Community/Rural/Urban Development; Public Economics.
Ano: 1991
URL: http://purl.umn.edu/119432

NE- 165 Case Study : CANOLA AS AN EMERGING INDUSTRY: A Processor and Producer Perspective
Provedor de dados: 31
Autores: Coaldrake,   Karen; Sonka,   Steven T.
The canola industry in the United States has been very small with a limited canola oil demand being met through imports. However, an apparent increase in consumer demand for more healthful alternatives to traditional vegetable oils has sparked an interest among domestic processors desiring to be among the first entrants to a U.S. canola oil market. Processor interest has in turn led to some producer experimentation with the crop. This case study documents the early activities of U.S. Canola Processors (USCP), one of two companies processing the U.S. crop, and Ralph King, a Central Illinois canola producer. USCP, a joint venture of Central Soya and Calgene, describes their role in terms of "building an industry," according to General Manager Larry Horn. The...
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness; Crop Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/116104

DO DEVELOPED EXPORTING COUNTRIES CONTRIBUTE TO FOOD SECURITY? THE CASE OF THE EC
Provedor de dados: 31
Autores: Schmitz,   P. Michael.
Tipo: Working or Discussion Paper
Palavras-chave: Food Security and Poverty.
Ano: 1991
URL: http://purl.umn.edu/13351

A MODEL OF THE DISAGGREGATED DEMAND FOR MEAT IN AUSTRALIA
Provedor de dados: 31
Autores: Cashin,   Paul.
The focus of this study is the estimation of the Australian demand for meat between 1967 and 1990, employing a demand systems approach which uses the linear approximate, almost ideal demand system (LA/AIDS) model. Two demand systems are estimated by maximum likelihood methods, one for aggregate types of meat and one for disaggregated meat products. After correcting for serial correlation in the two demand systems, restrictions from utility theory are imposed and tested for their appropriateness. By using a new data set on the Australian retail price and consumption offresh pork, ham and bacon, the results from the disaggregated model provide the first estimates of the own-price, cross-price and expenditure elasticities for these commodities.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/22621

U.S. FOOD STORE EXPERIENCE IN HANDLING CRAWFISH
Provedor de dados: 31
Autores: Schupp,   Alvin R.; Pomeroy,   Robert S.; Dellenbarger,   Lynn E.
The expansion of markets for crawfish outside the South Central United States is largely dependent on obtaining the support of grocery stores. Two hundred grocery store managers in each of the nine census divisions in the United States were interviewed by telephone to characterize the store, clientele and sales of stores handling crawfish products. Stores more likely to market crawfish were members of a chain, either low or high volume operations or located in the Mountain or Pacific census divisions. Primary reasons for stores not handling crawfish were a lack of demand and perceived unfavorable consumer attitudes toward crawfish.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/27610

AMERICAN AGRICULTURAL POLICY AND THE 1990 FARM BILL
Provedor de dados: 31
Autores: Erdman,   Laurie; Runge,   C. Ford.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy.
Ano: 1991
URL: http://purl.umn.edu/13593

FOOD DISTRIBUTION IN THE 1990S: OPPORTUNITIES FOR U.S. PRODUCTS IN ASIA
Provedor de dados: 31
Autores: Grub,   Phillip D.; King,   Damaris W.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/26485

EMERGING TRENDS IN AGRICULTURAL-BASED INDUSTRIES IN THE NORTHEAST
Provedor de dados: 31
Autores: Knox,   Hugh W.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/29017

A Response to the Federal Trade Commission/Anderson Critique of Structure-Performance Studies in Grocery Retailing
Provedor de dados: 31
Autores: Cotterill,   Ronald W.
This research report responds to the comprehensive critique of structure-price and structure profit studies in the food retailing industry by Keith Anderson, Staff Economist, Federal Trade Commission.  Mr. Anderson's critique was in response to a request from certain members of the House Subcommittee on Monopolies and Commercial Law that the Federal Trade Commission explain why these studies should not serve as the basis for more rigorous enforcement of the antitrust laws.  The introduction of this research report examines the evolution of this debate since the May 1988 hearings.  Then Anderson's specific criticisms of the prior studies are addressed.  The final section of this report contains some additional comments on Mr. Anderson's position, and...
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness; Industrial Organization.
Ano: 1991
URL: http://purl.umn.edu/25154

The Budgetary Implications of Reducing U.S. Income Inequality Through Income Transfer Programs
Provedor de dados: 31
Autores: Boisvert,   Richard N.; Ranney,   Christine K.
In this paper, we have recognized that the relatively constant inequality in the distribution of U.S. family income masks dramatic changes in the structure of the income distribution and the composition of personal incomes. Using relatively new procedures for decomposing the Gini measure of income inequality, we have gained a better understanding of the relationships among changes in the sources of income and the income distribution. This is facilitated through the use of data collected by the Census Bureau in the Survey of Income and Program Participation, which is the only set of data currently available that contains exhaustive lists of income and asset information at the household level. The empirical results are used in conjunction with data on...
Tipo: Working Paper
Palavras-chave: Financial Economics; Labor and Human Capital.
Ano: 1991
URL: http://purl.umn.edu/123104

Factors Influencing Change in Western Kansas Irrigation Acres
Provedor de dados: 31
Autores: Buller,   Orlan H.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/118199

THE STRUCTURE OF INTERNATIONAL DEMAND FOR SOYBEAN PRODUCTS
Provedor de dados: 31
Autores: Heien,   Dale; Pick,   Daniel H.
This study used a new body of quarterly data to estimate multilateral import demand relations for soybeans and soymeal.  The countries of origin were the United States, Brazil, and Argentina.  The areas of destination were the EEC, Japan, and Eastern Europe.  The results indicated that own- and cross-price elasticities were quite large.  These demand relations were then inverted and solved for prices to examine the effect on total revenue of increases in supplies from each of the exporting countries.  Results showed that, in all cases except one, own-total revenue was inflexible with respect to increase in the own-quantity supplied.  These results imply that an increase in exports will be associated with smaller proportional increase in revenue from exports.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/30291

Research Benefits in a Multimarket Setting: A Review
Provedor de dados: 31
Autores: Alston,   Julian M.
The literature on measuring the size and distribution of returns to research has paid increasing attention of late to questions that require a multimarket framework. These questions include the distribution of benefits among stages of a multistage process or among factors of production (i.e. the vertical incidence) and the distribution across different markets either for the same product in different places or for different products (the horizontal incidence). The latter may be regarded as including quality change which has attracted recent attention. In much of the literature, a linear elasticity modeling approach has been used to obtain measures of the consequences of research-induced supply shifts for prices and quantities which, in turn, are used to...
Tipo: Journal Article
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1991
URL: http://purl.umn.edu/12462

A model to determine benefits obtainable from the management of riverine fisheries of Bangladesh
Provedor de dados: 31
Autores: Ahmed,   Mahfuzuddin.
Tipo: Report
Palavras-chave: River fisheries; Fishery management; Fishery economics; Economic models; Bangladesh; Resource /Energy Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/44726

ESTIMATING EXTERNAL COSTS OF MUNICIPAL LANDFILL SITING THROUGH CONTINGENT VALUATION ANALYSIS: A CASE STUDY
Provedor de dados: 31
Autores: Roberts,   Roland K.; Douglas,   Peggy V.; Park,   William M.
Much of the solid waste stream in the United States is generated by metropolitan areas, while associated landfills are often located in adjacent rural communities. Landfill disposal of municipal solid waste often creates external costs to nearby residents. Contingent valuation was used to estimate external costs of siting a landfill in the Carter community of Knox County, Tennessee. Estimates of annual external costs were $227 per household. Household income, size, years in the community, and distance from the proposed landfill and the respondent's education, sex, and perception of health risks were important in determining a household's willingness to pay to avoid having a landfill in the Carter community. Also, households whose drinking water supplies...
Tipo: Journal Article
Palavras-chave: Public Economics.
Ano: 1991
URL: http://purl.umn.edu/30048

Alternative specifications of advertising in the Rotterdam model
Provedor de dados: 31
Autores: Brown,   Mark G.; Lee,   Jonq-Ying.
This paper examines several approaches to introduce advertising in systems of demand equations.  Advertising is included in the Rotterdam model using an unrestricted specification and three restricted specifications - advertising affects demand alternatively through (1) marginal utilities as in studies by Duffy (1987, 1989, 1990) and Selvanathan (1989), (2) scaling parameters which can be viewed as indicators of product quality, and (3) translation parameters which can be viewed as indicators of basic needs.  A test to choose among the alternative specifications is provided and the methodology is applied to data on demand for fruit juice products.
Tipo: Report
Palavras-chave: Advertising; Rotterdam model; Scaling; Translation; Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/52717

PERIPHERAL VS. CORE REGIONS IN EXTENDED INTEGRATED MARKETS: A PRELIMINARY U.S. APPLICATION
Provedor de dados: 31
Autores: Maki,   Wilbur R.; Reynolds,   Paul.
Tipo: Working or Discussion Paper
Palavras-chave: Community/Rural/Urban Development.
Ano: 1991
URL: http://purl.umn.edu/13245

A Socio-Economic Survey in the Province of Nampula: Cotton in the Smallholder Economy
Provedor de dados: 31
Ministry of Agriculture and Rural Development, Directorate of Economics, Republic of Mozambique
Tipo: Working or Discussion Paper
Palavras-chave: Food security; Food policy; Mozambique; Cotton; Crop Production/Industries; Food Security and Poverty; Q18.
Ano: 1991
URL: http://purl.umn.edu/55990

TRADING WITH CANADA: THE IMPACT OF THE U.S./CANADA FREE TRADE AGREEMENT ON NORTH AMERICAN AGRICULTURE
Provedor de dados: 31
Autores: Runge,   C. Ford.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/13291

THE POLITICAL ECONOMY OF RURAL EMERGENCY MEDICAL SERVICES:  A CASE STUDY AND ANALYTICAL FRAMEWORK
Provedor de dados: 31
Autores: Winchester,   Lucy J.
Chapter one is an extension report prepared for local level policy makers involved in the delivery of emergency medical services (EMS) in Hillsdale County, Michigan. The report originated out of a request, from officials to the Kellogg Leadershiop and Local Government Education Project, for aid with a public policy crisis in the delivery of ambulance services in Hillsdale County. It attempts to outline the public policy issues associated with ambulance delivery and to, in more detail, describe the organization of ambulance services in Hillsdale County. The report is meant to be a starting point for discussions between extension personnel and local leaders to address their questions and concerns about Hillsdale County ambulance delivery.
Tipo: Thesis or Dissertation
Palavras-chave: Community/Rural/Urban Development; Health Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/11082

IMPACT OF CASH SETTLEMENT ON FEEDER CATTLE BASIS
Provedor de dados: 31
Autores: Kenyon,   David E.; Bainbridge,   Bruce; Ernst,   Robin.
The feeder cattle futures contract specifications were changed in 1986 from physical delivery to cash settlement. The Chicago Mercantile Exchange expected this change to reduce basis variability and improve the ability of hedgers to predict basis. This study analyzes the basis for individual lots of feeder cattle before and after cash settlement. Basis equations were estimated by breed, sex, weight, grade, and season. These equations were used to predict basis. The results indicate basis variability was not reduced and hedger ability to forecast basis, in general, was not improved significantly under cash settlement compared to physical delivery.
Tipo: Journal Article
Palavras-chave: Marketing.
Ano: 1991
URL: http://purl.umn.edu/32624

CHANGING IDENTITY OF THE INDIVIDUAL AND THE FAMILY
Provedor de dados: 31
Autores: Craig,   Karen E.
Tipo: Conference Paper or Presentation
Palavras-chave: Public Economics.
Ano: 1991
URL: http://purl.umn.edu/17474

Partial Reform of World Rice Trade: Implications for the U.S. Rice Sector
Provedor de dados: 31
Autores: Haley,   Stephen L.
This paper analyzes the consequences for the United States of a partial reform of world rice trade. It is argued that likely trade reform would occur in the japonica rice producing countries of Japan, South Korea, Taiwan, and the European Community. Multilateral rice trade liberalization would have strong effects for medium grain rice in the United States. The strength of these effects might not be felt for a couple of years after the liberalization has begun because of minimal Japanese imports in the first couple of years of liberalization. U.S. rice millers will likely benefit more than producers. California producers would be the major beneficiaries of more open world rice markets.
Tipo: Working or Discussion Paper
Palavras-chave: Trade liberalization; Rice; Japonica rice; Agricultural trade; Simulation model; Crop Production/Industries; International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/51138

INCORPORATING UNCERTAINTY IN THE ANALYSIS OF OPTIMAL BEEF-FORAGE PRODUCTION SYSTEMS
Provedor de dados: 31
Autores: Rawlins,   Richard B.; Bernardo,   Daniel J.
A risk programming model was developed to evaluate the tradeoffs between risk and expected returns in beef-forage production systems.  The specification represents nutrient and intake considerations when allocating forage among cattle enterprises; it also incorporates the various sources of risk facing livestock producers.  Efficient ranch organizations were derived for a representative eastern Oklahoma ranch using MOTAD and Target-MOTAD formulations.  Diversification of forage enterprises, introduction of cow-calf enterprises, and retained ownership of weaned calves were identified as important responses to reductions in acceptable levels of risk.  Results also indicated efficient ranch plans to be sensitive to the risk criteria and producer's willingness...
Tipo: Journal Article
Palavras-chave: Livestock Production/Industries; Risk and Uncertainty.
Ano: 1991
URL: http://purl.umn.edu/30308

WATER CONSERVATION POTENTIAL FROM IRRIGATION TECHNOLOGY TRANSITIONS IN THE PACIFIC NORTHWEST
Provedor de dados: 31
Autores: Schaible,   Glenn D.; Kim,   C.S.; Whittlesey,   Norman K.
The effects of price changes on irrigation technology transitions and potential agricultural water conservation in the Pacific Northwest are analyzed using Parks' (1980) modified multinomial logit model. Results indicate that commodity price effects are statistically significant, but they are relatively small with nonprogram crop price effects greater than program crop price effects. Locational factors are also found to affect technology transitions. In the absence of water policy changes, continued irrigation technology adoption by year 2005 will result in average annual water savings of approximately 404,000 acre-feet in the Pacific Northwest.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy; Research and Development/Tech Change/Emerging Technologies.
Ano: 1991
URL: http://purl.umn.edu/32613

ABSTRACTS OF ORGANIZED SYMPOSIA AND SELECTED PAPERS
Provedor de dados: 31
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/29021

COMBINATIONS OF BUFFER-STOCKS AND BUFFER-FUNDS FOR WOOL PRICE STABILISATION IN AUSTRALIA
Provedor de dados: 31
Autores: Moir,   Brian; Piggott,   Roley R.
In this paper a preliminary analysis is presented of a combined buffer-fund and buffer-stock as an alternative to a pure buffer-fund or a pure buffer stock for stabilising wool prices. The alternatives analysed are designed so that each provides the same prices to producers as did the Reserve Price Scheme over the period of analysis. Least-cost combinations of policy instruments are derived. The results show that there is considerable potential for cost savings to be made by combining buffer-fund and buffer-stock instruments.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/22925

FOODS AND CRAFTS COTTAGE BUSINESS MARKETING AND MANAGEMENT TRAINING
Provedor de dados: 31
Autores: Stegelin,   Forrest E.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/26481

Trade Update Notes: Report of the Task Force on Reviving the GATT Negotiations in Agriculture
Provedor de dados: 31
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/51151

ORGANIZED SYMPOSIA ABSTRACTS, ANNUAL MEETING, SAEA, FORT WORTH, TEXAS, FEBRUARY 1991
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/30301

EMPLOYER SIZE, HUMAN CAPITAL, AND RURAL WAGES: IMPLICATIONS FOR SOUTHERN RURAL DEVELOPMENT
Provedor de dados: 31
Autores: Kraybill,   David S.; Yoder,   Michael J.; McNamara,   Kevin T.
A recent trend in rural development policy emphasizes small business development in place of industrial recruitment. To analyze some of the likely effects of expanding the proportion of small firms in local economies, an empirical wage rate model incorporating employer size was developed, and parameters were estimated using household date from rural Putnam County, Georgia. The estimates indicated that large employers offered higher wages than small employers and that the wage premium they offered was greater for blacks than for whites. These results support Thomas Till's argument that southern rural counties with relatively large black populations should not abandon efforts to attract large employers. Other factors associated with higher wages included...
Tipo: Journal Article
Palavras-chave: Community/Rural/Urban Development; Labor and Human Capital.
Ano: 1991
URL: http://purl.umn.edu/30045

Needed Reforms in the Harmonization of U.S. Patent Law
Provedor de dados: 31
Autores: Lesser,   William H.
Tipo: Working Paper
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1991
URL: http://purl.umn.edu/121480

USING NATURE AS BOTH MENTOR AND MODEL: ANIMAL WELFARE RESEARCH AND DEVELOPMENT IN SUSTAINABLE SWINE PRODUCTION
Provedor de dados: 31
Autores: Halverson,   Marlene K.
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/14156

Retail Trade Area Analysis Fessenden North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
This report is intended to provide an indepth trade area analysis of Fessenden, North Dakota. Specific analyses included determining Fessenden's main and greater trade areas, identifying the demographic profile of Fessenden shoppers, examining important and less important services for patron shoppers of Fessenden, identifying neighboring cities that area shoppers patronize, determining distances area shoppers traveled to Fessenden, and listing popular newspapers and radio stations among area residents. Current trade area information for Fessenden was obtained from a statewide trade area survey conducted by the Department of Agricultural Economics at North Dakota State University in 1989. Recent trends (1980 to 1989) in Fessenden population, retail sales,...
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Financial Economics.
Ano: 1991
URL: http://purl.umn.edu/51273

BOOK REVIEWS
Provedor de dados: 31
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/22930

AGRICULTURAL PRODUCER ATTITUDES TOWARDS DOING BUSINESS WITH WHOLESALE FOOD BUYER GROUPS IN THE CLEVELAND, OHIO VICINITY
Provedor de dados: 31
Autores: James,   Randall E.; Drake,   Barbara H.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/26483

SEAFOOD DISTRIBUTION STRATEGIES: MERCHANDISING STRATEGIES FOR RETAILERS IN THE 90S
Provedor de dados: 31
Autores: Graul,   Harold.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/26484

35th Annual Conference - Australian Agricultural Economics Society, The Univeristy of New England, Armidale, February 1991
Provedor de dados: 31
Tipo: Presentation
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/118927

THE FRENCH DAIRY MARKET IMPACT OF DAIRY QUOTAS AND CESSATON SCHEMES
Provedor de dados: 31
Autores: Veaux,   Jean-Louis.
The "Green Europe" was created in 1967 in order to integrate the agricultural economy of the Member Countries. For the dairy market, the Community implemented programs aimed at ensure good supply of dairy products, reasonable revenue to dairy producers, and occupation of some less favored areas.   The subsidizing and public storage program for dairy products (milk powder and butter) led to surplus production. The cost of such a policy became unacceptable for Community Members.   In 1984, the Minister of Agriculture Council decided to implement a quota program on milk production coupled with strong cessation schemes in order to reduce milk production and improve efficiency of dairy farms.   This program led to a 25% reduction in number of dairy farms, a 8%...
Tipo: Thesis or Dissertation
Palavras-chave: Agricultural and Food Policy; Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/11122

A REVIEW AND ANALYSIS OF THE EXPORT ENHANCEMENT PROGRAM
Provedor de dados: 31
Autores: Rittgers,   Chris.
The United States (US) Export Enhancement Program (EEP) was introduced in May 1985 with the goal of alleviating the agricultural sector's financial stress, through a restoration of export performance. Recently, the objectives of the policy have become more political in nature. The EEP is now considered to be an important means to pressure the European Community (EC) into offering concessions at multilateral trade negotiations. Under the EEP, payment inkind of export subsidies are authorized for selected or "targeted" markets. The EEP sales are supposed to be additional to commercial sales and should displace subsidized EC exports. Trade theory indicates that targeted export subsidies can be welfare increasing for the subsidizing country, but are likely to...
Tipo: Thesis or Dissertation
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/10999

Urban Agriculture in the United States
Provedor de dados: 31
Autores: Bills,   Nelson L.
Tipo: Working Paper
Palavras-chave: Farm Management.
Ano: 1991
URL: http://purl.umn.edu/121488

Política económica y desarrollo del sistema financiero peruano, parte II: propuesta para una reforma y análisis de la nueva ley de bancos
Provedor de dados: 31
Autores: Caceres Valderrama,   Armando; Nagamine Akamine,   Javier.
El documento propone, a partir de la problemática del sistema financiero, revisada en la primera parte de este estudio, modificaciones en el entorno económico que enfrentan las empresas financieras, así como una participación activa del Estado en la supervisión y control de las entidades crediticias.
Tipo: Working or Discussion Paper
Palavras-chave: Sistemas bancarios; Mercado financiero; Politica economica; Banking systems; Financial market; Economic policy; Peru; Financial Economics; E62; G21; N26.
Ano: 1991
URL: http://purl.umn.edu/42257

SOUTHWESTERN MINNESOTA FARM BUSINESS MANAGEMENT ASSOCIATION 1990 ANNUAL REPORT
Provedor de dados: 31
Autores: Olson,   Kent D.; Weness,   Erlin J.; Talley,   Dary E.; Fales,   Perry A.
Tipo: Working or Discussion Paper
Palavras-chave: Farm Management.
Ano: 1991
URL: http://purl.umn.edu/13023

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes:  Front Cover; Editorial Information; Southern Journal of Agricultural Economics Reviewers September 1, 1990 - August 31, 1991; Contents Pages
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/30060

AGGREGATION OVER CONSUMERS AND THE ESTIMATION OF A DEMAND SYSTEM FOR U.S. FOOD
Provedor de dados: 31
Autores: Falconi,   Cesar; Senauer,   Benjamin.
This paper estimates a complete demand system for food for the United States using an extension of the Almost Ideal Demand System (AIDS) with household and aggregate data. The major purpose is to explore the implications of aggregation over consumers. Empirical evidence, based on data from the 1980-87 Continuing Consumer Expenditure Surveys, shows that the regression results and demand elasticities of the household and aggregate models and data can be very similar. Further results reveal factors which affect the similarity of the household and aggregate estimates.
Tipo: Working or Discussion Paper
Palavras-chave: Consumer/Household Economics; Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/14021

FINANCING OF GROWTH IN AGRICULTURAL COOPERATIVES
Provedor de dados: 31
Autores: Lerman,   Zvi; Parliament,   Claudia.
Sources and uses of funds in agricultural cooperatives are examined and compared to the aggregate of nonfinancial corporations for the period 1973-1987.  Cooperatives are observed to finance nearly half their growth with equity.  The equity financing proportion of cooperatives is statistically indistinguishable from the national average of nonfinancial corporations in the years 1973-1983 and is consistently higher than the national average since 1984.  This finding contradicts the hypothesis of equity shortage in cooperatives.
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/13410

CONSUMER HOME-USE EVALUATION OF A DEVELOPED LEAN GROUND BEEF PRODUCT
Provedor de dados: 31
Autores: Dunkelberger,   John E.; Summerford,   Douglas H.; Adrian,   John L., Jr.; Huffman,   Dale L.; Egbert,   W. Russell.
This study reports findings on the acceptance of a new lean ground beef product. Tested products involved 1) a Developed Lean product (less than 10% fat plus quality enhancers), 2) a Lean product (less than 10% fat without quality enhancers), and 3) a Market product (slightly more than 20% fat). These products were home delivered on a rotating basis to a random sample of 91 households, one product each week for three weeks.  Product traits were evaluated by the household meal preparer at three stages of home use: preparing (5 traits), cooking (3 traits), and eating (4 traits), and by other household members at the final consumption stage of eating. More favorable ratings were observed for both Developed Lean and Lean products over the Market product at the...
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics.
Ano: 1991
URL: http://purl.umn.edu/27504

SOUTHERN AGRICULTURAL ECONOMICS ASSOCIATION HONORARY LIFETIME MEMBERSHIP AWARD RECIPIENTS, 1991; DISTINGUISHED CONTRIBUTIONS TO THE PROFESSION AWARDS RECIPIENTS 1991
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/30295

THE ECONOMIC DETERMINANTS OF ALCOHOL CONSUMPTION
Provedor de dados: 31
Autores: Clements,   Kenneth W.; Selvanathan,   Saroja.
In this paper is presented an analysis of the consumption patterns of beer, wine and spirits for Australia using data for the period 1955/56-1985/86. The validity of the demand theory hypotheses demand homogeneity and Slutsky symmetry has been tested using recently developed distribution• free  procedures. The findings were that (i) beer and wine were necessities and spirits a strong luxury; (ii) beer and spirits are specific complements; and (iii) the homogeneity and symmetry hypotheses are acceptable. Preference for wine consumption seems to be independent of preference for beer and spirits.
Tipo: Journal Article
Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 1991
URL: http://purl.umn.edu/22766

FRONT COVER
Provedor de dados: 31
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/22760

Political Economy of Endogenous Growth (Revised)
Provedor de dados: 31
Autores: Mohtadi,   Hamid; Roe,   Terry L.
Using an endogenous growth framework, this paper analyzes the impact of lobbying for public goods on the long run steady-state growth rate of the economy. A socially optimal level of lobbying can be found to exist in the absence of a social planner. Atomistic households, however, exceed this level by viewing taxes as fixed, ignoring the aggregate tax impact of lobbying via increased public expenditures. Two extensions are presented. In one, anti-tax lobbying is analyzed, drawing parallel results. In another, a quasi-public good is introduced, lobbying for which is based not on altruism, but on private gains, though public gains occur as a side effect.
Tipo: Working or Discussion Paper
Palavras-chave: Political Economy.
Ano: 1991
URL: http://purl.umn.edu/7502

Organic Farming: Should Government Give it More Technical Support?
Provedor de dados: 31
Autores: Marshall,   Graham R.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 1991
URL: http://purl.umn.edu/12390

HEALTH RELATED HAZARDS OF AGRICULTURE
Provedor de dados: 31
Autores: Sullivan,   John B., Jr.; Gonzales,   Melissa; Krieger,   Gary R.; Runge,   C. Ford.
Tipo: Working or Discussion Paper
Palavras-chave: Farm Management; Health Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/13336

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes: Front Cover Pages, Contents Page
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/29026

The Role of the Unit Administrator: Roles, Powers, and Responsibilities
Provedor de dados: 31
Autores: Johnson,   Marc A.
Tipo: Working or Discussion Paper
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/118195

SOME EMPIRICAL METHODS OF ESTIMATING ADVERTISING EFFECTS IN DEMAND SYSTEMS: AN APPLICATION TO DRIED FRUITS
Provedor de dados: 31
Autores: Green,   Richard D.; Carman,   Hoy F.; McManus,   Kathleen.
Two different methods of incorporating advertising effects into Almost Ideal Demand Systems (AIDS) are presented. Both advertising schemes are designed to allow theoretical restrictions to hold globally rather than at particular sample points. The models are estimated for California figs, prunes, and raisins. Empirical results indicate that generic advertising effects for these three dried fruits are generally weak when compared to price and total expenditure effects. Estimated cross-commodity effects also are relatively small except for the negative effect of raisin advertising on the quantity of prunes demanded.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis; Marketing.
Ano: 1991
URL: http://purl.umn.edu/32627

Farming Systems Research in a Declining Donor Environment
Provedor de dados: 31
Autores: Norman,   David W.
Tipo: Working or Discussion Paper
Palavras-chave: Demand and Price Analysis; Farm Management.
Ano: 1991
URL: http://purl.umn.edu/118198

Credit Assessment Methods and Applications: North Dakota Agricultural Banks
Provedor de dados: 31
Autores: Baltezore,   James F.; Gustafson,   Cole R.
Tipo: Technical Report
Palavras-chave: Agricultural Finance.
Ano: 1991
URL: http://purl.umn.edu/121416

ASSESSING EFFECTS OF PRICES AND ADVERTISING ON PURCHASES OF FINFISH AND SHELLFISH IN A LOCAL MARKET IN TEXAS
Provedor de dados: 31
Autores: Capps,   Oral, Jr.; Lambregts,   Johannes Adrianus.
Estimates of demand parameters for disaggregate finfish and shellfish products were obtained using scanner data from a retail food firm in Houston.  Demand for the various products was elastic (except for oysters); in general, cross-price effects play a statistically significant role in pounds sold per 1000 customers.  Own-advertisement effects are important, but cross-advertisement effects are generally marginal.  Seasonality is a key factor in purchases of most finfish and shellfish products.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/30299

Charting from within a Grounded Concept of Member Control
Provedor de dados: 31
Autores: Gray,   Thomas W.; Butler,   Gillian.
Organizational charts of membership structures can be useful tools for monitoring member control when they accurately depict a concept of control grounded in context and theory. This paper develops the concept "member control" by placing it within cooperative principles and democratic theory. From this perspective, members control their organization when, through a democratic process of decision making, they are able to keep the cooperative a cooperative, a condition we call "containment." With this conceptual development, a containment method of member control charting is developed and illustrative examples given.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/46262

The Export Enhancement Program: Prospects Under the Food, Agriculture, Conservation, and Trade Act of 1990
Provedor de dados: 31
Autores: Haley,   Stephen L.
According to provisions of the 1990 U.S. farm bill, the export enhancement program (EEP) will continue to be an important instrument in promoting U.S. agricultural exports and in challenging subsidizing competitors, like the European Community (EC), with funding levels set at a minimum of $500 million annually through 1995. This research, whose purpose is to evaluate the likely effectiveness of the wheat EEP through 1995, reaches several conclusions: (1) the EEP will have a significant effect on U.S. wheat exports, but will be subject to diminishing returns at levels higher than the annual minimums; and (2) the EC will only be marginally affected by the EEP, that is, it can effectively counter the effects of the EEP at low cost.
Tipo: Working or Discussion Paper
Palavras-chave: Export subsidies; Export enhancement program; Agricultural trade; Simulation model; Wheat; Coarse grains; Agricultural and Food Policy; International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/51142

A Farm Level Evaluation of a New Twinning Technology in Beef Cattle
Provedor de dados: 31
Autores: Farquharson,   Robert J.
This article describes a farm level case study evaluation of a new beef production technology. The evaluation was undertaken as input into a technical research project aimed at developing farm level management strategies to facilitate use of the twinning technology when it becomes commercially available. The evaluation includes budgeting methods and a Linear Programming analysis. A risk analysis was also conducted in which key factors are varied stochastically and the resulting distributions of activity gross margins compared. The analysis shows that twinning could potentially improve the returns to intensive beef production systems, depending importantly on the level and variability of weaning percentage.
Tipo: Journal Article
Palavras-chave: Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/12461

Retail Trade Area Analysis Hillsboro North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
This report is intended to provide an indepth trade area analysis of Hillsboro, North Dakota. Specific analyses included determining Hillsboro's main and greater trade areas, identifying the demographic profile of Hillsboro shoppers, examining important and less important services for patron shoppers of Hillsboro, identifying neighboring cities that area shoppers patronize, determining distances area shoppers traveled to Hillsboro, and listing popular newspapers and radio stations among area residents. Current trade area information for Hillsboro was obtained from a statewide trade area survey conducted by the Department of Agricultural Economics at North Dakota State University in 1989. Recent trends (1980 to 1989) in Hillsboro population, retail sales,...
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Financial Economics.
Ano: 1991
URL: http://purl.umn.edu/51280

END MATERIALS
Provedor de dados: 31
Includes:  Editor's Report for 1990-91; Reviewers, July 1990-June 1991; WAEA 1990 Award Winners; Past Presidents, Western Agricultural Economics Association 1927-91; Past Editors, Western Journal of Agricultural Economics 1977-88; WJAE Author Index Volume 1-16; WJAE Key Words Index Volumes 1-16, 1977-1991; Guidelines for Submitting Manuscripts; Membership Information; Back Cover
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/32608

Alternative Agricultural Policies in Korea
Provedor de dados: 31
Autores: Koo,   Won W.; Cho,   Kyu D.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy.
Ano: 1991
URL: http://purl.umn.edu/23294

SOIL CONSERVATION OR COMMODITY PROGRAMS: TRADE OFFS DURING THE TRANSITION TO DRYLAND CROP PRODUCTION
Provedor de dados: 31
Autores: Lee,   John G.; Lacewell,   Ronald D.; Richardson,   James W.
Predicted crop yields and wind erosion rates from a multi-year/multi-crop growth simulation model provided input into a multi-period recursive QP model to evaluate erosion implications during the transition to dryland crop production on the Texas Southern High Plains.  Three farm-program participation options were considered in this study.  Participation in an extension of the current farm program resulted in an increase in net returns and wind erosion rates above nonparticipation.  Imposition of a soil loss limit without consideration of a flexible base option can significantly reduce discounted present values.  Increasing risk aversion across producers affects crop mix selection which can result in lower per acre wind erosion rates for this particular...
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/30306

STRATEGIES FOR FOOD DISTRIBUTION IN THE 1990S: CONSUMER CONCERNS
Provedor de dados: 31
Autores: Ritchko,   Sue Ann.
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics.
Ano: 1991
URL: http://purl.umn.edu/26491

APPLYING LISA CONCEPTS ON SOUTHERN FARMS
Provedor de dados: 31
Autores: Ikerd,   John E.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/30311

Economic Impacts of the U.S. Honey Support Programs on the Canadian Honey Trade and Producers Prices
Provedor de dados: 31
Autores: Prentice,   Barry E.; Darko-Mensah,   Kwame.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy; International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/51149

U.S. COMPETITIVENESS AND NEEDED ADJUSTMENTS
Provedor de dados: 31
Autores: Daft,   Lynn M.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1991
URL: http://purl.umn.edu/17477

A Statistical Analysis of the North Dakota Lignite Industry's Contribution to the State Economy for 1990 and Projected 1991
Provedor de dados: 31
Autores: Coon,   Randal C.; Leistritz,   F. Larry.
Tipo: Technical Report
Palavras-chave: Land Economics/Use; Public Economics.
Ano: 1991
URL: http://purl.umn.edu/121389

CONJOINT ANALYSIS OF THE MID-ATLANTIC FOOD-FISH MARKET FOR FARM-RAISED HYBRID STRIPED BASS
Provedor de dados: 31
Autores: Halbrendt,   Catherine K.; Wirth,   Ferdinand F.; Vaughn,   Gerald F.
Conjoint analysis was used to examine buyer preferences toward farm-raised hybrid striped bass at the wholesale, retail, and restaurant levels.  Low price and round form were found to be important attributes in the product preference rating for the wholesale and retail markets.  The filleted form contributed the most to restaurants' preference rating.  Following these, larger fish size was preferred by all markets.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/30303

OUTSTANDING MASTER'S THESIS FOR 1990; MASTER'S THESIS AWARDS OF MERIT; JOURNAL ARTICLES OF THE YEAR FOR 1990
Provedor de dados: 31
Firm Efficiency: Theoretical Issues and Empirical Analyses of New York Dairy Farms, by Arthur Charles Thomas; Intercropping and Diversity: An Economic Analysis of Cropping Patterns on Smallholder Farms in Central Malawi, by Louise Janet Shaxson; An Economic Analysis of Compliance in the Rhode Island Inshore Clam Fishery, by Casey Eben Bean
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/29023

AN ANALYSIS OF VALUE-ADDED AGRICULTURAL EXPORTS TO MIDDLE-INCOME DEVELOPING COUNTRIES: THE CASE OF WHEAT AND BEEF PRODUCTS
Provedor de dados: 31
Autores: Lee,   Jung-Hee; Henneberry,   David; Pyles,   David.
This study determined probable future directions in U.S. value-added agricultural exports to middle-income developing countries (MIDCs) under the assumption of continued income growth. Import share equations for U.S. bulk, semi-processed and value-added wheat or beef products, as a percent of total U.S. wheat or beef product exports to each MIDC, were econometrically estimated using the ordinary least squares (OLS) technique. The empirical results indicate that in most MIDCs, increases in real per capita income have negative effects on the import share of processed wheat products while having positive effects on the import share of bulk wheat. However, import shares of U.S. processed beef products are likely to increase with income growth in most MIDCs.
Tipo: Journal Article
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/30061

ECONOMIC IMPACTS OF CHEMICAL USE REDUCTION ON THE SOUTH: DISCUSSION
Provedor de dados: 31
Autores: Schaub,   John R.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/30285

THE EFFECT OF STOCKING PROCEDURE ON CONSUMPTION OF SHELF LIFE IN REFRIGERATED SEAFOODS DISPLAYED IN FULL SERVICE DEPARTMENTS
Provedor de dados: 31
Autores: Haby,   Michael G.; Miget,   Russell J.
Tipo: Journal Article
Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 1991
URL: http://purl.umn.edu/26488

Heteroskedasticity in Crop Yield Models
Provedor de dados: 31
Autores: Yang,   Seung-Ryong; Koo,   Won W.; Wilson,   William W.
Tipo: Technical Report
Palavras-chave: Crop Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/121402

A COUNTY-LEVEL MODEL OF MANUFACTURING PLANT RECRUITMENT WITH IMPROVED INDUSTRIAL SITE QUALITY MEASUREMENT
Provedor de dados: 31
Autores: Kriesel,   Warren; McNamara,   Kevin T.
Empirical analysis of manufacturing plant location requires the use of a single industrial site quality measure.  Under hedonic price theory, the price of industrial sites can be explained by their quality characteristics.  The estimated site price is included with ten other location factors in an ordered, categorical logit model of plant attraction to Georgia counties.  The results inform public decision-makers of the relative impact of site location factors and how changes in location factors can alter the probability of attracting a manufacturing plant.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/30281

What Can Be Learned from Calculating Value-Added?
Provedor de dados: 31
Autores: Stanton,   Bernard F.
Tipo: Working Paper
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1991
URL: http://purl.umn.edu/121485

MODELING POLICY OPTIONS FOR IRRIGATION INVESTMENT, BUFFER STOCK LEVELS AND FOODGRAIN IMPORTS IN INDIA
Provedor de dados: 31
Autores: Ramirez,   Jorge; Easter,   K. William.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/13970

Food Retailing: Mergers, Leveraged Buyouts, and Performance
Provedor de dados: 31
Autores: Cotterill,   Ronald W.
This research report provides a comprehensive description of the organization and performance of the food retailing industry.  During the 1980s, the industry's operations and financial structure were dramatically altered by mergers and leveraged buyouts.  Thus, it provides an excellent case for the study of "market for corporate control" theories that expect "good" management to take over "bad" management, thereby increasing the economic efficiency of an industry.  The merger and leveraged buyout (LBO) wave in food retailing undoubtedly did benefit stock holders; however, a more efficient allocation of resources was not the primary source of these gains.  Mergers and LBOs contributed to the trend towards fewer, larger supermarkets owned by large chains....
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness; Industrial Organization.
Ano: 1991
URL: http://purl.umn.edu/25217

RECENT MACROECONOMIC DEVELOPMENTS AND THEIR IMPACT ON AGRICULTURE
Provedor de dados: 31
Autores: Monaco,   Ralph M.
The U.S. is nearing the end of its ninth recession since the Second World War.  This recession was caused by events outside of the agricultural sector, and the recovery will be due to factors outside the sector.  Yet agricultural production, costs, and income will be affected by general economic conditions.  This paper reviews current general economic conditions and examines their implications for the agricultural sector.
Tipo: Journal Article
Palavras-chave: Political Economy.
Ano: 1991
URL: http://purl.umn.edu/29025

ANALYSIS OF RANGELAND DEGRADATION USING STOCHASTIC DYNAMIC PROGRAMMING
Provedor de dados: 31
Autores: Passmore,   J.G.; Brown,   Colin G.
Degradation of arid rangeland, and efforts to control that degradation, have become topical issues. However, the inherent characteristics of the rangeland, and the intertemporal nature of the problem, complicate the analysis of degradation issues in the search for more appropriate rangeland policies. Stochastic dynamic programming is examined as one means of allowing for those complexities. Using the case of the Queensland mulga rangelands, optimal stocking rates are shown to rise with lower property sizes, higher discount rates, higher wool prices and declining risk aversion. Importantly, the analysis reveals that a strategy of high stocking rates with the potential for rangeland degradation is an optimal response to the economic and social factors that...
Tipo: Journal Article
Palavras-chave: Land Economics/Use.
Ano: 1991
URL: http://purl.umn.edu/22765

The Feasibility of Producing and Marketing Fresh Vegetables in Central and Western New York
Provedor de dados: 31
Autores: Barnes,   Raymond J.; White,   Gerald B.
The potential for growers in Western New York to grow, pack, and market 10 fresh vegetable crops was investigated. Terminal market price data for 1984-1988 were collected and analyzed for each crop. The cost of central packing, marketing, and transportation to terminal markets was estimated. The resulting net returns to growers and the costs of production using recommended cultural practices were calculated. Results, which depend very heavily on particular assumptions used in the study, indicated that tomatoes and green beans were profitable in an average season, giving positive returns to above total costs of production and marketing. Three crops (green peppers, broccoli, and cucumbers) had positive returns above variable costs, indicating that some...
Tipo: Working Paper
Palavras-chave: Crop Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/123088

CHANGES IN LIVESTOCK MARKETING AND PACKING INDUSTRIES: UNITED STATES, UPPER NORTH CENTRAL REGION, AND MINNESOTA
Provedor de dados: 31
Autores: Lawrence,   John D.; Bjornstad,   Even.
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/13796

Salinity Mitigation in the Murray River System
Provedor de dados: 31
Autores: Quiggin,   John C.
The problem of salinity and proposals to control or ameliorate it have received increasing attention in Australia in recent years. It is generally agreed that inappropriate land and water management practices, such as the excessive use of irrigation water in hydrologically unsuitable areas, are the main cause of the increasing levels of salinity which have been observed over the period of European settlement. If mitigation works are undertaken without regard to the incentive structures which generate these practices, they may encourage an extension of inappropriate land uses and ultimately be ineffectual or even counterproductive.  Analysis of these problems requires consideration of some issues which have so far received limited attention in discussions...
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/12458

Drought and Famine Relationships in Sudan: Policy Implications
Provedor de dados: 31
Autores: Teklu,   Tesfaye; von Braun,   Joachim; Zaki,   El Sayed.
Sudan experienced severe food shortage and famine during the 1970s and 1980s. For a country known for its vast agricultural resources, this is both unfortunate and ironic. This research report explores the basic factors that contributed to the recurrence of this phenomenon and identifies policies and actions for avoiding famines and achieving sound and sustainable food policies.  The study demonstrates the complexity of policy for prevention, which encompasses macroeconomic reform, promotion of agricultural production and technological change, market development, employment promotion, and interventions for health and nutrition. The researchers extensively investigated all theses aspects from primarily field data gathered before and after the 1984-85...
Tipo: Report
Palavras-chave: Famine; Sudan; Droughts; Food relief; Government policy; Drought relief; Food Security and Poverty.
Ano: 1991
URL: http://purl.umn.edu/42119

FABRICATED CUT BEEF PRICES AS LEADING INDICATORS OF FED CATTLE PRICE
Provedor de dados: 31
Autores: Owen,   C. Jane; Sporleder,   Thomas L.; Bessler,   David A.
Temporal relationships are investigated among fabricated cut prices, carcass value, and fed cattle prices. Also, linkages between fed cattle and wholesale beef prices are examined using vector autoregressive (VAR) techniques. Results, using daily prices over the 1980-85 period, suggested that fabricated cut prices and cattle prices are related to the imputed carcass value, carcass quote, and fed cattle prices. In addition, three fabricated cuts dominate as leading indicators of fed cattle prices of most fabricated cut prices. They are strip loin and bottom and top round prices. VAR models outperform the univariate and random-walk models of forecasting ability.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis; Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/32634

AN APPLICATION OF THE RATIONAL EXPECTATIONS HYPOTHESIS IN THE U.S. BEEKEEPING INDUSTRY
Provedor de dados: 31
Autores: Willett,   Lois Schertz.
A national beekeeping-industry model, assuming rational expectations, is presented.  Consistent and asymptotically efficient estimates are obtained by a modified two-step two-stage least squares method.  Based on parameter estimates, elasticities, and likelihood functions, a previously estimated modified adaptive expectations model explains industry behavior better than the rational expectations model.  Simulation analyses of the models suggest the direction of the impacts of an ineffective federal honey support program from 1982 through 1985 is similar but the magnitudes are varied.  The rational expectations model indicates the decrease in beekeepers' revenue in this period is larger than the decrease identified by the modified adaptive expectations model.
Tipo: Journal Article
Palavras-chave: Farm Management.
Ano: 1991
URL: http://purl.umn.edu/29019

NORTHEAST SOYBEAN ACREAGE RESPONSE USING EXPECTED NET RETURNS
Provedor de dados: 31
Autores: Davison,   Cecil W.; Crowder,   Bradley M.
Expected prices and expected net returns from cropping activities are used to estimate soybean acreage response in the Northeast.  Futures prices and lagged cash prices constitute proxies for price expectations.  Expected net returns appear as good or better than expected prices for estimating acreage response.  Short-run and long-run elasticities of soybean acreage with respect to expected net returns from soybeans are estimated as 0.5 and 1.6 for the northeast region.  Soybean acreage appears less responsive to changes in expected net returns than to expected changes in prices.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/28817

Concept Maps: A Tool for Teachers and Learners
Provedor de dados: 31
Autores: Streeter,   Deborah H.
Concept maps are a tool developed at Cornell University. designed for use as a metacognitive strategy. or a general strategy. that helps the student "learn how to learn." The goal of this paper is to illustrate how concept mapping can be used to integrate multidisciplinary subject maUer. assist the teacher in understanding the knowledge base of the student. reveal misconceptions or missing conceptual links. help resolve communications problems between the student and the professor. and encourage reflective thinking by all participants in the learning process. Three specific teaching situations are presented: 1) preparation of class materials. 2) communication with students in the classroom or the office. and 3) training of a teaching assistant. Examples of...
Tipo: Working Paper
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/121484

Inquérito ao Sector Familiar da Província de Nampula: O Algodão na Economia Camponesa
Provedor de dados: 31
Ministry of Agriculture and Rural Development, Directorate of Economics, Republic of Mozambique
Tipo: Working or Discussion Paper
Palavras-chave: Food security; Food policy; Mozambique; Cotton; Crop Production/Industries; Food Security and Poverty; Q18.
Ano: 1991
URL: http://purl.umn.edu/55992

THE LONG, SLOW SLIDE INTO ECONOMIC MEDIOCRITY
Provedor de dados: 31
Autores: Cochrane,   Willard W.; von Witzke,   Harald.
Tipo: Working or Discussion Paper
Palavras-chave: Political Economy.
Ano: 1991
URL: http://purl.umn.edu/13727

INCORPORATING THE IMPACTS OF UNCERTAIN FIELDWORK TIME ON WHOLE-FARM RISK-RETURN LEVELS: A TARGET MOTAD APPROACH
Provedor de dados: 31
Autores: Misra,   Sukant K.; Spurlock,   Stanley R.
Given an equipment complement, a specific crop mix has a probability distribution for whole-farm net returns. Increasing crop acreage while holding the set of equipment constant will reduce fixed costs per acre, but it will also increase the length of time required to complete crucial field operations such as planting and harvesting. Thus, the probability of encountering weather-related delays in fieldwork will increase. This increase in delays may cause a decline in yields and changes in the distribution of net returns. This paper develops a Target MOTAD model capable of capturing intra-year impacts on profit that arise from the timing of planting and harvesting operations as well as inter-year impacts on profits that are due to variations in economic and...
Tipo: Journal Article
Palavras-chave: Risk and Uncertainty.
Ano: 1991
URL: http://purl.umn.edu/30056

EXTENSION PROGRAMMING ON POLICY FOR ENVIRONMENT AND ECONOMIC DEVELOPMENT
Provedor de dados: 31
Autores: Libby,   Lawrence W.
Tipo: Conference Paper or Presentation
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/17464

THE RETURNS TO AGRICULTURAL RESEARCH IN MAINE: THE CASE OF A SMALL NORTHEASTERN EXPERIMENT STATION
Provedor de dados: 31
Autores: Leiby,   James D.; Adams,   Gregory D.
Estimates of the marginal internal rate of return to expenditures for research by the Maine Agricultural Experiment Station are presented.  Estimates are performed using ridge regression under an array of specifications, including alternative functional forms, lag structures, costs of public funds, and variable specifications.  The results are consistent with many previous results that imply an underinvestment in agricultural research.
Tipo: Journal Article
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1991
URL: http://purl.umn.edu/28816

Socialists Industrialization and Economic Performance in China From 1952 to 1989
Provedor de dados: 31
Autores: Lin,   Jinding; Koo,   Won W.
Tipo: Working or Discussion Paper
Palavras-chave: International Development.
Ano: 1991
URL: http://purl.umn.edu/23115

Pricing and Marketing Practices for North Dakota Durum and HRS Wheat: 1990 Crop Year
Provedor de dados: 31
Autores: Scherping,   Daniel J.; Wilson,   William W.
Cash grain markets have premiums and discounts for quality characteristics that are important to individual market participants. Premiums and discounts are determined by and change with the supply and demand for those quality characteristics. This seventh annual report contains the results of the 1990 survey of the pricing and marketing practices of North Dakota country elevators for durum and hard red spring (HRS) wheat. The results show that the HRS wheat protein levels fell from their 1988 and 1989 highs, and that the protein premium for HRS wheat increased over the past year. Discounts have generally become less since 1988 for both HRS and durum wheat.
Tipo: Report
Palavras-chave: Crop Production/Industries; Demand and Price Analysis; Marketing.
Ano: 1991
URL: http://purl.umn.edu/51200

How Not to Farm Together
Provedor de dados: 31
Autores: LaDue,   Eddy L.; Crispell,   Carl.
Tipo: Working Paper
Palavras-chave: Farm Management.
Ano: 1991
URL: http://purl.umn.edu/121374

Post-Flask Management of Tissue-Cultured Bananas
Provedor de dados: 31
Autores: Daniells,   Jeff; Smith,   Mike K.
Tipo: Report
Palavras-chave: Crop Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/113891

Política económica y desarrollo del sistema financiero peruano, parte I: diagnóstico
Provedor de dados: 31
Autores: Caceres Valderrama,   Armando; Nagamine Akamine,   Javier.
Este documento realiza un diagnóstico de la situación del sistema financiero peruano a principios de 1990. La principal problemática que se observa es la pérdida de importancia del sistema financiero en el proceso ahorro-inversión en el Perú que se agudiza a partir de 1988. Este es un primer paso para la elaboración de una propuesta de reforma del sistema financiero.
Tipo: Working or Discussion Paper
Palavras-chave: Sistemas bancarios; Mercado financiero; Politica economica; Banking systems; Financial market; Economic policy; Peru; Financial Economics; E62; G21; N26.
Ano: 1991
URL: http://purl.umn.edu/42261

FARM LEVEL IMPACTS OF REDUCED CHEMICAL USE ON SOUTHERN AGRICULTURE
Provedor de dados: 31
Autores: Richardson,   James W.; Smith,   Edward G.; Knutson,   Ronald D.; Outlaw,   Joe L.
Tipo: Journal Article
Palavras-chave: Farm Management.
Ano: 1991
URL: http://purl.umn.edu/30304

IMPACT OF EC'S REBALANCING STRATEGY ON DEVELOPING COUNTRIES:  THE CASE OF FEED
Provedor de dados: 31
Autores: Hartmann,   Monika; Schmitz,   P. Michael.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy.
Ano: 1991
URL: http://purl.umn.edu/14085

Status of Wetlands in North Dakota in 1990
Provedor de dados: 31
Autores: Baltezore,   James F.; Leitch,   Jay A.; Beekie,   Sara F.; Schutt,   Preston F.; Grosz,   Kevin L.
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 1991
URL: http://purl.umn.edu/23466

Retail Trade Area Analysis Lisbon North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
This report is intended to provide an indepth trade area analysis of Lisbon, North Dakota. Specific analyses included determining Lisbon's main and greater trade areas, identifying the demographic profile of Lisbon shoppers, examining important and less important services for patron shoppers of Lisbon, identifying neighboring cities that area shoppers patronize, determining distances area shoppers traveled to Lisbon, and listing popular newspapers and radio stations among area residents. Current trade area information for Lisbon was obtained from a statewide trade area survey conducted by the Department of Agricultural Economics at North Dakota State University in 1989. Recent trends (1980 to 1989) in Lisbon population, retail sales, per capita income,...
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Farm Management.
Ano: 1991
URL: http://purl.umn.edu/51313

ECONOMIC MALAISE SLOWS REFORM: A REVIEW OF CURRENT CONDITIONS IN THE SOVIET UNION
Provedor de dados: 31
Autores: Skold,   Karl D.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 1991
URL: http://purl.umn.edu/30298

ECONOMIC STRATEGIES FOR COEVOLUTION: PARKS, BUFFER ZONES AND BIODIVERSITY
Provedor de dados: 31
Autores: Conrad,   Jon M.
The creation of parks and preserves in less developed countries is seen as an important step in preserving biodiversity and genetic information (Dixon and Sherman 1990). The establishment of a park or preserve, however, is often seen as a threat by rural residents if they are denied access to areas where hunting, gathering or small scale agricultural provided them with food, fuel or marketable products. In a series of papers Norgaard (1981, 1984 and 1985) advocates development strategies that promote coevolution of socioeconomic and ecological systems. In this dynamic context, coevolution might be defined by a set of trajectories describing economic welfare and biodiversity that remain within "acceptable" bounds over some future horizon. (1) What are some...
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/7270

DETERMINANTS OF RESTRUCTURED FARM LOAN PERFORMANCE
Provedor de dados: 31
Autores: Pederson,   Glenn D.; Rao,   Ananth; Boehlje,   Michael.
A probabilistic model is applied to cross-sectional data to identify determinants of post-restructure performance of Federal Land Bank loans. The results indicate that restructured loans were sensitive to factors that determine the debt repayment burden and the repayment ability of the restructured farm operations. Loan performance is found to be relatively more sensitive to the levels of the post-restructure interest rate and cash farm income than to the financial structure and leverage position of the restructured farm. The relationships between the post-restructure interest rate, cash farm income level, and the probability of loan performance are illustrated.
Tipo: Journal Article
Palavras-chave: Agricultural Finance.
Ano: 1991
URL: http://purl.umn.edu/30059

BALANCING POLICY FOR ENVIRONMENT AND ECONOMIC DEVELOPMENT
Provedor de dados: 31
Autores: Bromley,   Daniel W.
Tipo: Conference Paper or Presentation
Palavras-chave: Environmental Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/17473

BOOK REVIEWS
Provedor de dados: 31
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/22622

The Empirical Analysis of Oligopsony in Agricultural Markets: Residual Supply Estimation in California's Processing Tomato Market
Provedor de dados: 31
Autores: Durham,   Catherine A.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries; Demand and Price Analysis; Industrial Organization.
Ano: 1991
URL: http://purl.umn.edu/25200

AGRICULTURE AND ENVIRONMENTAL POLICY: RECENT UNITED STATES AND AUSTRALIAN DEVELOPMENTS
Provedor de dados: 31
Autores: Hyberg,   Bengt; Pascoe,   Sean.
Agricultural development in both the United States and Australia has led to suboptimal levels of environmental degradation.  While both countries face similar forms of agricultural environmental degradation, the different resource endowment and population distributions have resulted in a different incidence of the costs of these problems.  Increasing demand for environmental services and better information on off-site damages have led to increasing demand for reform of agricultural, rural development, and environmental programs to eliminate biases against practices viewed as more environmentally compatible.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy; Environmental Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/28813

Preliminary Economic Feasibility of Processing a Natural Red Flood Colorant from Purple-Hull Sunflower in North Dakota
Provedor de dados: 31
Autores: Golz,   Joel T.; Helgeson,   Delmer L.; Zetocha,   Dale F.; Petry,   Timothy A.
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/23401

INTERNATIONAL TRADE IN THE FOOD SECTOR AND ENVIRONMENTAL QUALITY, HEALTH, AND SAFETY: A SURVEY OF POLICY ISSUES
Provedor de dados: 31
Autores: Kozloff,   Keith; Runge,   C. Ford.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/13325

A USER'S GUIDE FOR PVBUDGET
Provedor de dados: 31
Autores: Fuller,   Earl I.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural Finance.
Ano: 1991
URL: http://purl.umn.edu/13259

LABOR MOBILITY AMONG AGRICULTURAL COLLEGE GRADUATES: A HUMAN CAPITAL APPROACH
Provedor de dados: 31
Autores: Barkley,   Andrew P.
Determinants of job mobility and job advancement were motivated from a model of investment in human capital. Least squares and Tobit models were specified and estimated using data from a recent survey of Kansas State University College of Agriculture graduates. Determinants of job turnover and the number of promotions earned were quantified. Job change and job advancement were found to occur early in the careers of agriculture college alumni. Job experience was found to be the most significant determinant of labor mobility and promotion. Personal and occupational characteristics were found to have significant but small impacts on labor mobility and advancement.
Tipo: Journal Article
Palavras-chave: Labor and Human Capital.
Ano: 1991
URL: http://purl.umn.edu/32589

THE RETURNS TO INVESTMENT IN RESEARCH ON AUSTRALIAN WOOL PRODUCTION
Provedor de dados: 31
Autores: Scobie,   Grant M.; Mullen,   John D.; Alston,   Julian M.
A production function approach is used to estimate growth in farm productivity in the Australian wool industry from an estimated level of expenditure on wool production R &amp; D. A market equilibrium model of the wool industry is then used to measure the share of total benefits from this productivity growth accruing to Australia and its wool growers. A net return is estimated after allowing for lags in the development and adoption of technology.
Tipo: Journal Article
Palavras-chave: Production Economics; Productivity Analysis.
Ano: 1991
URL: http://purl.umn.edu/22764

Determinates of Subjective Food Safety Perceptions
Provedor de dados: 31
Autores: Lin,   Chung-Tung Jordan; Milon,   J. Walter; Babb,   Emerson M.
Tipo: Journal Article
Palavras-chave: Agribusiness; Food Consumption/Nutrition/Food Safety.
Ano: 1991
URL: http://purl.umn.edu/62300

DIFFERENCES IN THE TRANSACTION COSTS OF STRATEGIES TO CONTROL AGRICULTURAL CHEMICAL OFFSITE AND UNDERSITE DAMAGES
Provedor de dados: 31
Autores: Easter,   K. William.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/13421

The Coconut Crab: aspects of the biology and ecology of Birgus latro in the Republic of Vanuatu
Provedor de dados: 31
Tipo: Report
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/118052

ABSTRACTS: PAPERS PRESENTED ANNUAL MEETING, SAEA, FORT WORTH, TEXAS, FEBRUARY, 1991
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/30292

ENTREPRENEURSHIP, SANCTIONS, AND LABOR CONTRACTING: DISCUSSION
Provedor de dados: 31
Autores: Goodwin,   Harold L., Jr.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/30286

Retail Trade Area Analysis Grafton North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
This report is intended to provide an indepth trade area analysis of Grafton, North Dakota. Specific analyses included determining Grafton's main and greater trade areas, identifying the demographic profile of Grafton shoppers, examining important and less important services for patron shoppers of Grafton, identifying neighboring cities that area shoppers patronize, determining distances area shoppers traveled to Grafton, and listing popular newspapers and radio stations among area residents. Current trade area information for Grafton was obtained from a statewide trade area survey conducted by the Department of Agricultural Economics at North Dakota State University in 1989. Recent trends (1980 to 1989) in Grafton population, retail sales, per capita...
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Farm Management.
Ano: 1991
URL: http://purl.umn.edu/51310

MARKET STRUCTURE AND SPATIAL PRICE DYNAMICS
Provedor de dados: 31
Autores: Brorsen,   B. Wade; Chavas,   Jean-Paul; Grant,   Warren R.
A method was developed with time series models to test hypotheses about the relationship between market structure and spatial price dynamics. Long-run dynamic multipliers measuring the magnitude of lagged adjustments for spatial milled rice prices were calculated from the time series model and used as the dependent variable in a regression model that included a number of factors expected to influence price determination. Results show that price adjustments were slower as regional submarket concentration increased and were faster in the regions with a higher market share. Arkansas, the state with the largest market share, was consistently a price leader
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis; Industrial Organization.
Ano: 1991
URL: http://purl.umn.edu/30057

ECONOMIC RISK EFFICIENCY OF BOLL WEEVIL ERADICATION
Provedor de dados: 31
Autores: Szmedra,   Philip I.; McClendon,   Ronald W.; Wetzstein,   Michael E.
The purpose of this study was to determine the economic risk efficiency of implementing a boll weevil (Anthonomus grandis [Boheman]) eradication (BWE) program in cotton (Gossypium hirsutum L.) producing regions of the Mississippi Delta.  Alternative producer pest management practices and program cost sharing were incorporated into a biophysical cotton simulation model.  Participation in a BWE program along with strict adherence to Cooperative Extension Service pest management guidelines proved to be the risk efficient practice.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries; Risk and Uncertainty.
Ano: 1991
URL: http://purl.umn.edu/30288

FARM LEVEL IMPACTS OF REDUCED CHEMICAL USE ON SOUTHERN AGRICULTURE: DISCUSSION
Provedor de dados: 31
Autores: Foster,   Thomas H.
Tipo: Journal Article
Palavras-chave: Farm Management.
Ano: 1991
URL: http://purl.umn.edu/30296

USE OF CREDIT EVALUATION PROCEDURES AT AGRICULTURAL BANKS IN MINNESOTA: 1991 SURVEY RESULTS
Provedor de dados: 31
Autores: Pederson,   Glenn D.; Rm,   R. Chellappan.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural Finance.
Ano: 1991
URL: http://purl.umn.edu/13819

MEGATRENDS IMPACTING AGRICULTURE
Provedor de dados: 31
Autores: Boehlje,   Michael.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy.
Ano: 1991
URL: http://purl.umn.edu/13355

Nonconventional Technology for Agricultural Development in Developing Countries
Provedor de dados: 31
Autores: Soliman,   Ibrahim.
This paper concerns the economic assessment of a nonconventional technology to provide a cheap food and/or feed for many developing countries, using wasted resources, i.e. coastal arid areas irrigated directly with seawater to grow a halophyte crop(Salicornia-sos-7). It was cultivated for two successive years in Kuwait. The analysis showed that the harvested yield was 20 tons per hectare, which provided 12.42 MT of straw for sale and 1.7 MT of oil seeds for processing. Processed seeds of 1-hectare provide 425 kg of food oil and 1.1 MT of feed meal.Under Kuwait conditions, on per hectare basis, the total costs of production( fixed &amp;variable costs)were $3088. However,simulation of this technology under a conventional developing country like Egypt with...
Tipo: Article
Palavras-chave: Halophyte Crops; Seawater irrigation system; Salicornia as oil seeds crop; Scaling Up the experiments; Profit Margin; Production function; Least cost Ration; Sheep fattning; Agribusiness; Community/Rural/Urban Development; Crop Production/Industries; Land Economics/Use; Livestock Production/Industries; Production Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/119721

RELATION BETWEEN CROP YIELDS AND ESTIMATED RETURNS TO SCALE AND RETURNS TO RESEARCH
Provedor de dados: 31
Autores: Peterson,   Willis L.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 1991
URL: http://purl.umn.edu/13430

An Annotated Bibliography of the Sub-Sahara African Grain Economy
Provedor de dados: 31
Autores: Sy,   Hamath Alassane; Faminow,   Merle D.
Tipo: Technical Report
Palavras-chave: Crop Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/124282

THE GLOBAL FOOD WEB: ENVIRONMENT, FOOD SUPPLY, AND HUMAN NUTRITION- A PUBLIC POLICY EDUCATION PROGRAM FOR YOUTH
Provedor de dados: 31
Autores: Scearce,   W. Keith.
Tipo: Conference Paper or Presentation
Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 1991
URL: http://purl.umn.edu/17460

TECHNICAL EFFICIENCY AND FARM SIZE: A NON-PARAMETRIC FRONTIER ANALYSIS
Provedor de dados: 31
Autores: Papadas,   Christos T.; Dahl,   Dale C.
This study examines the argument that farm size is associated with technical efficiency. A non-parametric, frontier analysis method is used, together with some additional statistical analysis. Although some gains in efficiency appear as we move toward larger farms, they do not seem to be significantly large. The input/output ratios are indeed smaller for larger farms and the difference is statistically significant. It can be attributed however to the fact that smaller farms operate on a smaller scale and not inside the production frontier.
Tipo: Working or Discussion Paper
Palavras-chave: Productivity Analysis.
Ano: 1991
URL: http://purl.umn.edu/13679

Potential Economic Effects of a Zero Depletion Policy for the Ogallala Aquifer in Northwest Kansas
Provedor de dados: 31
Autores: Buller,   Orlan H.
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/118177

CAN WE TAKE THE CON OUT OF MEAT DEMAND STUDIES?
Provedor de dados: 31
Autores: Alston,   Julian M.; Chalfant,   James A.
Whimsy in specification choices leads to fragility of inference in econometric studies of structural change in meat demand. The literature contains a variety of results, with many contradictions, attributable largely to differences in specifications. This article reviews that literature, uses synthetic data to demonstrate the sensitivity of results to specification choices and to evaluate the power of nonparametric tests, and uses Canadian data to demonstrate a preferred approach to testing the hypothesis of structural change.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/32618

THE ECONOMIC IMPACT OF CROP LOSSES: A COMPUTABLE GENERAL EQUILIBRIUM APPROACH
Provedor de dados: 31
Autores: Sherony,   Keith R.; Knowles,   Glenn J.; Boyd,   Roy.
The impact of crop losses on the U.S. economy are analyzed using a Computable General Equilibrium (CGE) Model. In doing so, concerns about widespread crop losses due to a global climate change or environmental event are addressed. The CGE approach allows for analysis of the interactions between supply and demand within agricultural markets as well as between these markets and the rest of the economy. The results suggest that policy responses which allow free market pricing signals to determine production mitigate the effects of an event that approximates the drought  of 1988.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/32628

The Impact of the Immigration Reform and Control Act of 1986 (IRCA) on Farm Labor Contracting
Provedor de dados: 31
Autores: Figueroa,   Enrique E.
Tipo: Working Paper
Palavras-chave: Agricultural and Food Policy; Labor and Human Capital.
Ano: 1991
URL: http://purl.umn.edu/121391

Bringing Agriculture into the GATT: Reviving the GATT Negotiations on Agriculture
Provedor de dados: 31
Autores: Bredahl,   Maury E.; Josling,   Timothy E.; McCalla,   Alex F.; Meilke,   Karl D.; Miner,   William M.; Tangermann,   Stefan; Tutwiler,   M. Ann; Warley,   T.K.
Tipo: Journal Article
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/49870

THE CONVERSION OF COOPERATIVES TO PUBLICLY HELD CORPORATIONS: A FINANCIAL ANALYSIS OF LIMITED EVIDENCE
Provedor de dados: 31
Autores: Collins,   Robert A.
Recent reorganizations of agricultural cooperatives have created concern that the cooperative form of business may not be well suited to the agribusiness environment of the 1990s. Potential institutional changes in the cooperative form of organization require objective analysis of the etiology of these reorganizations. Previous research evaluated internal features of the cooperative that may create economic incentives to convert the co-op to a corporation. This article focuses on external factors that may also be related to cooperative conversions. Informal evaluation of the limited evidence suggests that these factors merit further study.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/32593

Publications in Agricultural Economics Kansas State University 1990
Provedor de dados: 31
Tipo: Working or Discussion Paper
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/118192

ANALYZING A REGION'S ECONOMIC BASE
Provedor de dados: 31
Autores: Maki,   Wilbur R.
Tipo: Working or Discussion Paper
Palavras-chave: Community/Rural/Urban Development.
Ano: 1991
URL: http://purl.umn.edu/13233

THE POLITICAL ECONOMY OF AGRICULTURAL AND TRADE POLICIES IN OPEN ECONOMIES: IMPLICATIONS FOR INTERNATIONAL COOPERATION IN THE GATT
Provedor de dados: 31
Autores: von Witzke,   Harald; Hausner,   Ulrich.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/14141

COW-CALF PRODUCERS' PERCEIVED PROFIT MAXIMIZATION OBJECTIVE: A LOGIT ANALYSIS
Provedor de dados: 31
Autores: Young,   Katherine D.; Shumway,   C. Richard.
A logistic regression (logit) model was developed to examine how socioeconomic characteristics of cow-calf producers influenced their perceptions of themselves as profit maximizers.  Amount of pasture acreage, percent of income earned from the cow-calf operation, and desire to increase net worth and efficiently use labor significantly increased the producer's probability of claiming to be in the business primarily to maximize profits.  Some sociological reasons for owning cattle significantly reduced the probability of the producer claiming to be a profit maximizer while others significantly increased the probability.
Tipo: Journal Article
Palavras-chave: Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/30294

1991 Budget Guide: Estimated Prices for Crop Operating Inputs and Capital Investment Items
Provedor de dados: 31
Autores: Snyder,   Darwin P.
Current costs for 1991 crop inputs and capital investments common to New York agriculture are summarized and/or estimated from supplier surveys and contacts made in early 1991. The guide includes seed, fertilizer, pesticides, labor, and fuel costs for crop inputs. Capital investment items include power and field equipment and structures. An index of prices paid by New York dairy farmers is provided for 1985 through 1990 along with estimates for 1991.
Tipo: Working Paper
Palavras-chave: Agricultural Finance; Crop Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/123089

INCORPORATING SUBSISTENCE INTO A PROBIT ANALYSIS OF HOUSEHOLD NUTRITION LEVELS
Provedor de dados: 31
Autores: Cook,   Cristanna M.; Eastwood,   David B.; Cheng,   Ty.
Previous nutrient demand and consumption analyses show that several economic and sociodemographic variables are often associated with intakes.  However, most of the literature does not account for differences among individuals within households.  This study reviewed possible definitions of nutrient differences with respect to nutritional needs.  Nutrient levels defined by the Thrifty Food Plan were used as subsistence levels for households in the 1977-78 Nationwide Food Consumption Survey.  Probit analysis showed that the usual variables found related to nutrient intakes did not differentiate among subsistence groups.  Household life cycle and working female heads influenced whether the household was under its requirement level.
Tipo: Journal Article
Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 1991
URL: http://purl.umn.edu/30312

Agriculture in the Uruguay Round: A Perspective from the Political Economy of Protectionism
Provedor de dados: 31
Autores: MacLaren,   Donald.
Tipo: Journal Article
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/12457

North Dakota Trade Areas: An Overview
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/23441

Country Towns and Fluctuating Rural Fortunes - Is There a Case For Assistance?
Provedor de dados: 31
Autores: Davenport,   Scott V.; Lynch,   J.; Douglas,   Robert A.
This paper provides a review of some commonly held arguments for extending government assistance to the non-farm rural business sector as a means of maintaining the infrastructure of agriculture through periods of rural downturn. Recent literature on the nature of linkages between the farm sector and small business is reviewed to identify the scale of exposure of the various types of small business. Assistance measures available to the farm sector are compared to those available to small business and differences between the two groups are discussed. It is concluded that the disparity in tax treatment between the farm and non-farm rural business sector is an important focus for policy reform and that assistance to the non -farm rural business sector should...
Tipo: Journal Article
Palavras-chave: Community/Rural/Urban Development.
Ano: 1991
URL: http://purl.umn.edu/12389

INFORMATION PARTNERSHIPS IN THE FOOD AND AGRIBUSINESS SECTOR: AN ALTERNATIVE COORDINATION STRATEGY
Provedor de dados: 31
Autores: Streeter,   Deborah H.; Hudson,   Michael A.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/27505

Contents Pages
Provedor de dados: 31
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/12459

AUSTRALIAN AGRICULTURAL ECONOMICS SOCIETY AWARDS 1990
Provedor de dados: 31
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/22927

The Complexity of Food Safety Regulation
Provedor de dados: 31
Autores: Bruns,   Mark; Kliebenstein,   James B.; McKean,   James.
Tipo: Journal Article
Palavras-chave: Agribusiness; Food Consumption/Nutrition/Food Safety.
Ano: 1991
URL: http://purl.umn.edu/62299

BORROWING BEHAVIOR OF THE PROPRIETARY FIRM: DO SOME RISK-AVERSE EXPECTED UTILITY MAXIMIZERS PLUNGE?
Provedor de dados: 31
Autores: Collins,   Robert A.; Gbur,   Edward E.
When a proprietor's liability is limited, borrowing behavior for an expected utility maximizer may vary widely. Proprietors with little to lose may rationally choose very large debt levels while others may choose to finance with 100% equity. This article presents a theory to explain these widely observed variations in behavior.
Tipo: Journal Article
Palavras-chave: Financial Economics.
Ano: 1991
URL: http://purl.umn.edu/32606

THE ROBUSTNESS OF SINGLE INDEX MODELS IN CROP MARKETS: A MULTIPLE INDEX MODEL TEST
Provedor de dados: 31
Autores: Blank,   Steven C.
The single index model (SIM), developed for analysis of financial assets, is assessed as a tool for evaluating the risk-return tradeoff faced in agricultural enterprise selection. This study tests whether some of the hypotheses underlying the SIM are valid when the SIM is used in agricultural cropping decisions. Empirical evidence from county level data does not support SIM hypotheses, indicating that more robust results might come from multiple index models.
Tipo: Journal Article
Palavras-chave: Agricultural Finance; Risk and Uncertainty.
Ano: 1991
URL: http://purl.umn.edu/32609

MODEL SELECTION WITH TEMPORAL AND SPATIAL AGGREGATION: ALTERNATIVE MARKETING MARGIN MODELS
Provedor de dados: 31
Autores: Lyon,   Charles C.; Thompson,   Gary D.
Tipo: Working or Discussion Paper
Palavras-chave: Marketing.
Ano: 1991
URL: http://purl.umn.edu/13253

RURAL HEALTH CARE CRISIS
Provedor de dados: 31
Autores: Cordes,   Sam M.
Tipo: Conference Paper or Presentation
Palavras-chave: Health Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/17472

ECONOMICS AND THE RESUMPTION OF COMMERCIAL WHALING
Provedor de dados: 31
Autores: Conrad,   Jon M.; Bjorndal,   Trond.
There is now strong scientific evidence that several species of baleen whale and possibly the sperm whale, have recovered to levels that would support commercial harvest. The stock of fin whales (Balaenoptera physatus) off the eastern coast of Iceland and the minke whale (Balaenoptera acutorostrata) in the Northeast Atlantic, off the coast of Japan and in the Southern Ocean are prime candidates for commercial harvest. Should commercial whaling be resumed? If so, what role should economics play in determining the level of harvest and management policies?  A bioeconomic model for baleen whales is developed and applied to the stock of minke whales in the Northeast Atlantic. A delay-difference equation is used to model the population dynamics and an...
Tipo: Working or Discussion Paper
Palavras-chave: Economics; Whaling; Rnlnke abide; Resource /Energy Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/7269

Current Outlook for Dairy Farming, Dairy Products, and Agricultural Policy in the United States
Provedor de dados: 31
Autores: Novakovic,   Andrew M.; Bills,   Nelson L.; Jack,   Kevin E.
Tipo: Working Paper
Palavras-chave: Agricultural and Food Policy; Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/121490

HONORARY LIFE MEMBER AWARDS
Provedor de dados: 31
Mary E. Templeton; John H. Foster
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/29016

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes: Front Cover; Officers 1990-91; Contents Page
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/27612

Equitable Patent Legislation for Developing Countries
Provedor de dados: 31
Autores: Lesser,   William H.
Tipo: Working Paper
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1991
URL: http://purl.umn.edu/121372

END MATERIALS
Provedor de dados: 31
Includes: 1991 National Public Policy Education Conference Participants
Tipo: Conference Paper or Presentation
Ano: 1991
URL: http://purl.umn.edu/17475

TRANSFERABLE WATER ENTITLEMENTS WHICH SATISFY HETEROGENEOUS RISK PREFERENCES
Provedor de dados: 31
Autores: Alaouze,   Chris M.
Irrigators in Victoria have a water entitlement which is composed of a highly secure water right and additional water which may be purchased if available. Water entitlements in NSW are based on the irrigated area with the actual volume of water received in any year depending almost entirely on seasonal conditions. Musgrave and Lesueur (1973) argued that these entitlements could be replaced by a portfolio of entitlements, with each type of entitlement in the portfolio guaranteeing a nominated minimum value of water at a different probability. Thus, irrigators could purchase a portfolio of water entitlements which would suit their individual risk preferences. The purpose in this paper is to show how a water authority can construct a portfolio of water...
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy; Risk and Uncertainty.
Ano: 1991
URL: http://purl.umn.edu/22762

A Simulation of the Grain Producers' Decision Problem at Harvest
Provedor de dados: 31
Autores: McClintock,   David N.; Ahmadi-Esfahani,   Fredoun Z.; Johnston,   Jim H.
A simulation model is employed to find the least cost way of dealing with the grain carryover during and after completion of harvesting that is caused by a difference between harvesting and trucking capabilities in the short run. The study may potentially aid the farmer in the face of legislative changes affecting wheat marketing, as well as technological changes in harvesting equipment. Results tend to indicate that temporary paddock storage may be more efficient than contract trucking in managing the carryover.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/12391

Sustainable Agriculture and the Structure of North Dakota Agriculture
Provedor de dados: 31
Autores: Sell,   Randall S.; Dahl,   Bruce L.; Goreham,   Gary A.; Jacobsen,   Roy M.; Stearns,   Larry D.; Watt,   David L.; Youngs,   George A., Jr.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; Industrial Organization; Production Economics.
Ano: 1991
URL: http://purl.umn.edu/23137

Price Formation and the Transmission of Prices Across Levels of Dairy Markets
Provedor de dados: 31
Autores: Novakovic,   Andrew M.
Tipo: Working Paper
Palavras-chave: Livestock Production/Industries; Marketing.
Ano: 1991
URL: http://purl.umn.edu/121381

ECONOMIC PERCEPTIONS AND AGRICULTURAL POLICY PREFERENCES
Provedor de dados: 31
Autores: Variyam,   Jayachandran N.; Jordan,   Jeffrey L.
Previous research indicates that policy perceptions are important in explaining individual preferences for government expenditures. In this article we study agricultural policy preferences using national survey data containing several policy perception measurements. A model linking preferences to perceptions through an underlying unobservable variable is estimated and assessed using the bootstrap. The perception that farmers receive too much government assistance is dominant, affecting preferences negatively. Perceptions concerning the importance of agriculture to the economy, financial stress and profitability, and farming as an occupation are also important. Some selective preference for family farm support is indicated with implications for efforts to...
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 1991
URL: http://purl.umn.edu/32590

PUBLIC PERCEPTIONS OF FOOD SAFETY
Provedor de dados: 31
Autores: Jordan,   Jeffrey L.; Elnagheeb,   Abdelmoneim H.
The results of a 1986 nationwide survey concerning public perceptions of agriculture are presented. Specifically, the paper reports on those questions having to do with food safety, nutrition, taste, and freshness, as well as the use of antibiotics in animal feed. An ordered probit model is used to analyze the socioeconomic factors that influenced the perceptions of respondents from the Southern region. While most respondents found food to be safer, more nutritious, and fresher than in previous times, most did not think food was better tasting. A majority were concerned about the health effects of antibiotics in animal feed.
Tipo: Journal Article
Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 1991
URL: http://purl.umn.edu/27503

NE- 165 Case Study : LEANER PORK: Can New Sector Linkages Be Formed?
Provedor de dados: 31
Autores: Coaldrake,   Karen; Sonka,   Steven T.
A more demanding and evolving consumer is creating change in the market for pork and many working within the industry are predicting opportunities for leaner products. However, leaner pork enthusiasts also are frustrated by the established industry food chain that offers little incentive for modification. Modification would require change on the part of genetic suppliers, commercial producers, packers and processors, and retailers. However, many of these food chain participants traditionally have not collaborated with others in the sector. Yet the establishment of these new linkages may be key to the success of a leaner pork industry. This case study documents several of the activities currently occurring within the leaner pork industry and explores new...
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness; Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/116103

EC - U.S. SOYBEAN AND SOYBEAN PRODUCT TRADE POLICY ISSUES AND DISPUTES
Provedor de dados: 31
Autores: Erdman,   Laurie.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/13778

THE INFLUENCE OF MICROWAVE OVENS ON THE DEMAND FOR FRESH AND FROZEN POTATOES
Provedor de dados: 31
Autores: Guenthner,   Joseph F.; Lin,   Biing-Hwan; Levi,   Annette E.
Growth in the number of homes with microwave ovens has changed food preferences and preparation methods. The objective of this study was to determine the impact that microwave oven ownership has had on the demand for fresh and frozen potatoes. Using data from the 1970-88 period, demand equations were estimated for fresh potatoes, frozen potatoes in the retail market and frozen potatoes in the food service market.   Results indicate that increases in the percentage of homes that own microwave ovens have shifted demand outward for fresh potatoes but inward for frozen potatoes. If potato processors can develop a microwave frozen French fry that satisfies consumers, microwave ovens could boost the demand for frozen potatoes along with the increase in demand...
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/27501

END MATERIALS
Provedor de dados: 31
Includes: Guidelines for Submission of Manuscripts, Editors of the Southern Journal of Agricultural Economics, 1991 Executive Committee and Membership/Subscription Information
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/30290

A COMPARISON OF PRICING STRUCTURES AT VIDEO AND TRADITIONAL CATTLE AUCTIONS
Provedor de dados: 31
Autores: Bailey,   DeeVon; Peterson,   Monte C.
The number of cattle sold through video auctions has increased dramatically during the past five years. In this study structural differences in pricing between a group of traditional auctions and the nation's largest satellite video cattle auction are examined. A Chow test for structural pricing differences reveals that the influence of lot characteristics, market information, and merchandising strategies on cattle prices are essentially identical at both types of auctions. However, optimal lot size is larger at video auctions than at traditional auctions.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/32603

AN EVALUATION OF CONSUMER PESTICIDE RESIDUE CONCERNS AND RISK INFORMATION SOURCES
Provedor de dados: 31
Autores: Byrne,   Patrick J.; Gempesaw,   Conrado M., II; Toensmeyer,   Ulrich C.
Marginal probability effects of demographic variables on consumer concerns about pesticide residues were assessed as well as the likelihood of consumer beliefs given different channels of information on produce safety and risks. This was done using maximum likelihood estimation (MLE) of ordered logit models. The empirical results showed that pesticide residue concern levels appeared to be lower for more highly educated and high income households. Safety information from the academic community was found to have the highest likelihood of acceptance by consumers.
Tipo: Journal Article
Palavras-chave: Risk and Uncertainty.
Ano: 1991
URL: http://purl.umn.edu/30052

ENVIRONMENTAL QUALITY AND LAND VALUES
Provedor de dados: 31
Second Annual Conference on Agricultural Policy and the Environment; Proceedings of a Conference Sponsored by University of Minnesota, Center for International Food and Agricultural Policy; Agricultural Development Regional Agency (ESAV); University of Padova; Lake Itasca, Minnesota, September 22-29, 1990, Volume I  Contents:  Agricultural and Environmental Policy Developments 1989-90, by C. Ford Runge  Land Values and Environmental Regulation, by Michael D. Boehlje, Philip M. Raup and Kent D. Olson  Methods of Land Valuation for Administrative Purposes, by M. Grillenzoni, G.M. Bazzani and A. Ragazzoni  Determinants of Farm Real Estate Values, by F. Mari and L. Venzi  Groundwater Contamination and the Management of a Conjunctive Ground and Surface Water...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; Land Economics/Use.
Ano: 1991
URL: http://purl.umn.edu/13399

EFFECT OF GENERIC ADVERTISING ON THE DEMAND FOR FLUID MILK: THE CASE OF THE TEXAS MARKET ORDER
Provedor de dados: 31
Autores: Capps,   Oral, Jr.; Schmitz,   John D.
This analysis indicates that generic advertising expenditures, ceteris paribus, generated rightward shifts in demand for fluid milk in the Texas Market Order over the period January 1980 to September 1988. Generally, the results from this study are in agreement with previous research efforts which suggest that generic advertising can increase the demand for fluid milk. Importantly, in this analysis, the impacts of television and radio advertising have been effectively disentangled. Television advertising generates a response that wears off more quickly than radio advertising. Also, the long-run effect of radio advertising is bout 1.75 times greater than the long-run effect of television advertising.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis; Marketing.
Ano: 1991
URL: http://purl.umn.edu/30043

LIVESTOCK PRODUCTION POLICIES AND MEAT PROCESSING MARGINS: THE CASE OF NEW ZEALAND, 1967-1988
Provedor de dados: 31
Autores: Griffith,   Garry R.; Moore,   Walter B.
The New Zealand export meat industry has been through a considerable number of changes in the 1980s. The deregulation of export slaughter facilities, Supplementary Minimum Prices, Producer Board intervention, declining livestock numbers and domestic cost pressures have all affected the performance of the domestically based processing sector. Major changes in market access and demand have influenced off-shore marketing operations, particularly for sheepmeats. Additionally, there has been a change in the type of meat exported with a greater proportion of further processed product shipped in recent years. As an example of the impact of these developments on livestock producers, the producer share of the United Kingdom wholesale market return for a...
Tipo: Journal Article
Palavras-chave: Production Economics; Productivity Analysis.
Ano: 1991
URL: http://purl.umn.edu/22928

Role of the Non-Profit Private Sector in Rural Land Conservation: Results from a Survey in the Northeastern United States
Provedor de dados: 31
Autores: Bills,   Nelson L.; Weir,   Stephen.
Tipo: Working Paper
Palavras-chave: Land Economics/Use.
Ano: 1991
URL: http://purl.umn.edu/121492

United States and Canadian Free Trade Agreement: Economic Implications
Provedor de dados: 31
Autores: Koo,   Won W.; Golz,   Joel T.; Uhm,   Ihn H.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/23210

STRUCTURE OF THE FRESH ONION MARKET IN THE SPRING SEASON: A FOCUS ON TEXAS AND ITS COMPETITION
Provedor de dados: 31
Autores: Fuller,   Stephen W.; Capps,   Oral, Jr.; Bello,   Haruna; Shafer,   Carl E.
A structural model of the  spring onion economy is developed to analyze forces affecting the onion-producing sector in Texas. Spring onion prices in Texas are influenced by own shipments, shipments from storage stocks, and variety. Texas's decline in market share is largely the result of expanded late summer (storage) onion production. A decline in the U.S. real tariff and a weakening of the real exchange rate (pesos/$) encouraged onion imports from Mexico during the study period. However, this impact was offset by the imposition of quality standards in 1980 and the growth in domestic late summer onion production. Study period results did not support the recent contention of Texas producers that onion imports from Mexico are unfavorably affecting prices...
Tipo: Journal Article
Palavras-chave: International Relations/Trade; Demand and Price Analysis; Industrial Organization.
Ano: 1991
URL: http://purl.umn.edu/32597

Contents Page
Provedor de dados: 31
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/12387

CATFISH PRODUCER HARVEST RESPONSE TO PRODUCTION AND ASYMMETRIC PRICE RISK
Provedor de dados: 31
Autores: Branch,   William; Tilley,   Daniel S.
Harvest response to production and asymmetric price risk was analyzed using an ordinary least squares model. Statistically significant responses to production-quality and output price risk were indicated. Results suggest that alternative pricing strategies designed to reduce risk may alter harvest response and decrease month to month harvest variability.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis; Production Economics.
Ano: 1991
URL: http://purl.umn.edu/30049

THE DEMAND FOR BUTTER, MARGARINE, AND OILS: A NONPARAMETRIC TEST FOR EVIDENCE OF STRUCTURAL CHANGE
Provedor de dados: 31
Autores: Jensen,   Kimberly L.; Bevins,   Scott.
The objective of this study was to determine whether structural change in the demand for butter, margarine, and salad and cooking oils occurred between 1967 and 1986. A nonparametric method, which does not require that a functional form be imposed on the data, was used to test for violations from stable, well-behaved preferences. Violations were found, but they were small in magnitude. Therefore, the results failed to show strong evidence that consumption patterns for butter, margarine, and oils were inconsistent with stable preferences.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/30044

IMPLICATIONS OF INCREASED REGIONAL CONCENTRATION AND OLIGOPSONISTIC COORDINATION IN THE BEEF PACKING INDUSTRY
Provedor de dados: 31
Autores: Azzam,   Azzeddine M.; Schroeter,   John R.
This article proposes an oligopsony pricing model for projecting the effects of increased concentration or oligopsonistic coordination in beef packing using simulation methods. The model combines an explicit behavioral theory of packing firms with an attempt to respect the regional scope of cattle procurement markets. Our results indicate less danger of falling cattle prices, as a results of increase packer concentration or coordination, than do results from conventional econometric studies.
Tipo: Journal Article
Palavras-chave: Industrial Organization.
Ano: 1991
URL: http://purl.umn.edu/32616

Public Perceptions of Food Safety in Animal-Food Products
Provedor de dados: 31
Autores: Halbrendt,   Catherine K.; Gempesaw,   Conrado M., II; Bacon,   J. Richard; Sterling,   Lesa.
Tipo: Journal Article
Palavras-chave: Agribusiness; Food Consumption/Nutrition/Food Safety.
Ano: 1991
URL: http://purl.umn.edu/62302

Retail Trade Area Analysis Linton North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
This report is intended to provide an indepth trade area analysis of Linton, North Dakota. Specific analyses included determining Linton's main and greater trade areas, identifying the demographic profile of Linton shoppers, examining important and less important services for patron shoppers of Linton, identifying neighboring cities that area shoppers patronize, determining distances area shoppers traveled to Linton, and listing popular newspapers and radio stations among area residents. Current trade area information for Linton was obtained from a statewide trade area survey conducted by the Department of Agricultural Economics at North Dakota State University in 1989. Recent trends (1980 to 1989) in Linton population, retail sales, per capita income,...
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Financial Economics.
Ano: 1991
URL: http://purl.umn.edu/51308

Determinants of Entry: A Study of Leading U.S. Supermarket Chain Entry Patterns
Provedor de dados: 31
Autores: Cotterill,   Ronald W.; Haller,   Lawrence E.
De novo entry by the top 20 U.S. supermarket chains into local markets is examined using Tobit analysis.  We find that entry is related to potential entrants' proximity to the local market, market growth, concentration, the number of large chains that are incumbents in the local market, and the competency of potential entrants as measured by their recent internal expansion rate.  With regard to competing theories that relate strategic entry barriers to entry patterns, different components of the analysis provide support for different hypotheses.  However, the most general model provides little support for the contestability or Chicago efficiency rent hypotheses.
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness; Industrial Organization.
Ano: 1991
URL: http://purl.umn.edu/25226

THE REFORM OF RURAL LAND MARKETS IN LATIN AMERICA AND THE CARIBBEAN: RESEARCH, THEORY, AND POLICY IMPLICATIONS
Provedor de dados: 31
Autores: Shearer,   Eric B.; Lastarria-Cornhiel,   Susana; Mesbah,   Dina.
Note:  This volume includes "Economic Theory of Land Markets and Its Implications for the Land Access of the Rural Poor," by Michael R. Carter and Dina Mesbah, (June 1990)  This paper summarizes recent research on rural land markets in the Latin America and Caribbean (LAC) region and on the relationship between this research and broader land tenure issues. The purpose of the project that prompted this paper was to carry out cross-country and longitudinal research on land tenure issues in the LAC region so as to provide an instructive and informative analysis of how tenure patterns affect economic, rural development, and environmental issues. The project's principal research areas were: (1) tenure security through improved titling and land registration...
Tipo: Working or Discussion Paper
Palavras-chave: Land markets--Latin America Agrarian structure--Latin America Land administration--Latin America Policy evaluation--Latin America Land use; Rural--Latin America Land reform--Latin America Rural poor--Latin America Community/Rural/Urban Development Land Economics/Use.
Ano: 1991
URL: http://purl.umn.edu/12761

SELECTED PAPERS ABSTRACTS
Provedor de dados: 31
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/32605

Georgia Consumers' Preference for Organically Grown Fresh Produce
Provedor de dados: 31
Autores: Misra,   Sukant K.; Huang,   Chung L.; Ott,   Stephen L.
Tipo: Journal Article
Palavras-chave: Agribusiness; Crop Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/62312

Política económica y rentabilidad en el sector minero: 1989-1990
Provedor de dados: 31
Autores: Pasco-Font Quevedo,   Alberto.
Este documento recoge los resultados de una investigación sobre política económica y rentabilidad en el sector minero. Presenta la metodología para la construcción de un índice de tipo de cambio real minero-indicador que resume los efectos de la política económica y de los precios internacionales sobre la rentabilidad minera- y comenta su evolución durante los últimos cinco años.
Tipo: Working or Discussion Paper
Palavras-chave: Mineria; Politica economica; Mining; Economic policy; Peru; Resource /Energy Economics and Policy; L70.
Ano: 1991
URL: http://purl.umn.edu/42262

European Economic Integration and the Consequences for U.S. Agriculture
Provedor de dados: 31
Autores: Gleckler,   James; Koopman,   Robert B.; Tweeten,   Luther G.
The pace of political-economic change in former East Bloc nations of Europe defies accurate prediction. Some events such as more price-directed markets are predictable enough but integration of former East Bloc countries into the European Community remains a matter of speculation. Analysis indicates that the economics of agriculture favors acceptance by the European Community of members of the European Free Trade Association before former members of the. East Bloc. Analysis also indicates the considerable agricultural production potential of Central and East Europe will be unleased first by market-directed economies and later by integration with the EC -- if the latter occurs. US consumers gain more than producers lose so the economic welfare of Americans...
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/51140

Measures of advertising success and the probability of purchase: the orange-juice example
Provedor de dados: 31
Autores: Lee,   Jonq-Ying; Fairchild,   Gary F.
Tipo: Report
Palavras-chave: Orange juice; Advertising; Probability to purchase; Agribusiness; Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/52721

A BEGINNERS GUIDE TO TRANSPORTATION MODELING WITH TRANPLAN - A SUPPLEMENT TO COMPUTER SIMULATION OF STRATEGIES FOR MANAGING THE RURAL ROAD INFRASTRUCTURE
Provedor de dados: 31
Autores: Halbach,   Daniel Walter.
Tipo: Working or Discussion Paper
Palavras-chave: Public Economics.
Ano: 1991
URL: http://purl.umn.edu/13539

CONTRADICTORY PREDICTIONS ON SUPPLY RESPONSE UNDER STABILIZATION: A RECONCILIATION
Provedor de dados: 31
Autores: Quiggin,   John C.
Two separate bodies of literature on stabilization give radically different results, yet these contradictions have not attracted any attention. The first arises from the neoclassical theory of stabilization and predicts that beneficial stabilization will always attract positive supply response. The second arises from the work of Newbery and Stiglitz and predicts 'perverse' supply response for highly risk averse producers. In this paper, the differences which yield these results are described and some suggestions are made for a generalized model.
Tipo: Journal Article
Palavras-chave: Risk and Uncertainty.
Ano: 1991
URL: http://purl.umn.edu/22619

THE WILLINGNESS OF CONSUMERS TO PAY FOR ATTRIBUTES OF LAMB
Provedor de dados: 31
Autores: Mullen,   John D.; Wohlgenant,   Michael K.
A contingent valuation approach has been used to estimate the willingness to pay by consumers for changes in leanness and portion size in lamb loin chops. Over 800 consumers were interviewed at four major shopping centres in Sydney. Consumers were prepared to buy loin chops with more fat cover at a discounted price but were unwilling to offer a premium for chops with a larger area of red meat.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/22618

FORECASTING ITEM MOVEMENT WITH SCAN DATA: BOX-JENKINS RESULTS
Provedor de dados: 31
Autores: Eastwood,   David B.; Gray,   Morgan D.; Brooker,   John R.
Preliminary forecasts using the Box-Jenkins methodology for supermarket scan data for ground beef and roast item movement are described.  The functional form and the accuracy of the forecasts vary by product.  Results suggest that further analyses incorporating price and advertising may increase the accuracy of the forecasts.
Tipo: Journal Article
Palavras-chave: Food Consumption/Nutrition/Food Safety; Marketing.
Ano: 1991
URL: http://purl.umn.edu/28815

POTENTIAL BENEFITS OF RICE VARIETY AND WATER MANAGEMENT IMPROVEMENTS IN THE TEXAS GULF COAST
Provedor de dados: 31
Autores: Chang,   Ching-Cheng; Eddleman,   Bobby R.; McCarl,   Bruce A.
The welfare benefits from potential rice yield-enhancing and water-saving research programs and their distributional implications under alternative farm program provisions are compared. This is done in an ex ante surplus maximization framework by using a multiregional, price endogenous mathematical programming model of U.S. agriculture. The simulation results indicate that government price support policies have profound impacts on the distribution of research benefits and distort interest group incentives and rankings for allocation of resources to research.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy; Research and Development/Tech Change/Emerging Technologies.
Ano: 1991
URL: http://purl.umn.edu/32599

RISK ANALYSIS FOR PROPRIETORS WITH LIMITED LIABILITY: A MEAN- VARIANCE, SAFETY- FIRST SYNTHESIS
Provedor de dados: 31
Autores: Collins,   Robert A.; Gbur,   Edward E.
Since nearly the entire U.S. output of agricultural commodities is produced by proprietors with limited liability, it is important to understand how limited liability affects decision in a risky environment. This article extends the work of Robinson and Barry; Robinson and Lev; and Robinson, Barry, and Burghart. It provides a rigorous derivation of one of their objective functions, compares it to standard risk analysis tools, and suggests several methods of empirical implementation. Under some conditions, utility maximization in the limited liability environment is consistent with optimization of Roy's safety-first criterion, while in other situations Freund's mean-variance criterion is appropriate. However, it is easy to demonstrate cases where neither...
Tipo: Journal Article
Palavras-chave: Risk and Uncertainty.
Ano: 1991
URL: http://purl.umn.edu/32617

Role of the Non-Profit Private Sector in Rural Land Conservation: Results from a Survey in the Northeastern United States
Provedor de dados: 31
Autores: Bills,   Nelson L.; Weir,   Stephen.
Tipo: Working Paper
Palavras-chave: Land Economics/Use.
Ano: 1991
URL: http://purl.umn.edu/121483

MARKET-STRUCTURE DETERMINANTS OF NATIONAL BRAND-PRIVATE LABEL PRICE DIFFERENCES OF MANUFACTURED FOOD PRODUCTS
Provedor de dados: 31
Autores: Connor,   John M.; Peterson,   Everett B.
This paper estimates the relationships between market structure and the Lerner index of monopoly constructed from price data on processed food products sold through grocery stores. A theoretical model of a differentiated oligopoly specifies two determinants of price-cost margins: the Herfindahl-Hirschman index of seller concentration adjusted for the elasticity of demand and the industry advertising-to-sales ratio. The results indicate that the three principal determinants of price-cost margin variation, in order of their impacts, are: advertising intensity, elasticity of demand, and concentration. Previous structure-performance studies that did not incorporate the elasticity of demand were probably misspecified.
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness; Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/116099

FOOD NUTRITIONAL QUALITY: A PILOT STUDY ON CONSUMER AWARENESS
Provedor de dados: 31
Autores: Schmitz,   John D.; Nayga,   Rodolfo M., Jr.
Retail food demand studies are becoming increasingly concerned with the role of nutrition and health, yet consumer perceptions and attitudes are often ignored. The purpose of this pilot study is to determine consumer perceptions involving nutrition levels for selected foods. The influence of demographics and information about nutrition and health on perceptions toward meat items are determined. Results generally indicate that consumer perceptions toward fat and cholesterol levels in meats are based on the comparison of animal sources, not the comparison of individual cuts or preparation techniques.  Recent efforts in the study of retail food demand have moved toward the role of nutrition and health. Several attempts have been made to measure the role that...
Tipo: Journal Article
Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 1991
URL: http://purl.umn.edu/27613

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes: Front Cover, Officers 1990-91, Contents Pages
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/26490

SPATIAL AND TEMPORAL LINKAGES IN U.S. POTATO PRICES
Provedor de dados: 31
Autores: Cheng,   Hsiang-Tai; Leiby,   James D.; Marra,   Michele C.
In recent years regional weather patterns have had an unusually strong effect on potato production and prices across the country in all marketing seasons. The quantitative impact of changes in potato production in one marketing region on prices in others is not currently known. These linkages, however, are quite important for decision makers in the industry in planning marketing strategies. This study examines the relationships among prices and quantities of potatoes across regions and seasons.  Own- and cross-price flexibilities are estimated using Pooled Time Series and Cross-Sectional methods for winter, spring, summer as well as eastern, central, and western fall potato production. Significant impacts of own-regional production on prices are found....
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/27607

LAND VALUES AND ENVIRONMENTAL REGULATION
Provedor de dados: 31
Autores: Boehlje,   Michael; Raup,   Philip M.; Olson,   Kent D.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; Land Economics/Use.
Ano: 1991
URL: http://purl.umn.edu/14045

THE DEVELOPING COUNTRIES AND THE URUGUAY ROUND
Provedor de dados: 31
Autores: Runge,   C. Ford.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/13320

Impacts of Rural Economic Restructuring: Characteristics and Experiences of Displaced Families in North Dakota
Provedor de dados: 31
Autores: Leistritz,   F. Larry.
Tipo: Technical Report
Palavras-chave: Community/Rural/Urban Development.
Ano: 1991
URL: http://purl.umn.edu/121382

Telecommunications-Based Businesses: Potential Source of Rural Economic Development?
Provedor de dados: 31
Autores: Leistritz,   F. Larry.
Tipo: Technical Report
Palavras-chave: Community/Rural/Urban Development; Research and Development/Tech Change/Emerging Technologies.
Ano: 1991
URL: http://purl.umn.edu/121418

RESEARCH REPORTS AND UPDATES
Provedor de dados: 31
Competitiveness of Firms in the Texas Food Processing Sector: A Profile, by Marie Wildenthal; Consumer Perceptions of Irradiated Food Attributes: The Continuing Account, by Danny E. Terry, Richard L. Tabor; Consumer Response to State-Oriented Fresh Produce Displays in Supermarkets, by John R. Brooker, David B. Eastwood; Measuring Consumer Willingness to Pay for Organic Produce: An Adaptive Conjoint Analysis, by Patrick J. Byrne, U.C. Toensmeyer, Carl L. German, Robert Wilson; A Conjoint Analysis of Consumer Preferences Toward Farm-Raised Seafood Products, by J.R. Bacon, C.K. Halbrendt, U.C. Toensmeyer; Evaluation of Harvest Criteria for Empire Apples: How Does It Affect Consumer Preference?, by James Provost, Kerry A. Cochran, James Ahern; Consumer...
Tipo: Journal Article
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1991
URL: http://purl.umn.edu/26482

The effects of international remittances on poverty, inequalities, and development in rural Egypt
Provedor de dados: 31
Autores: Adams,   Richard H., Jr.
Many low-income people, especially those from poor rural areas, seek to improve their lives by immigrating in search of work and income, increasingly moving across national borders and further afield. In recent years, the remittances they earn have come to have an important effect on the economies of many developing countries, profoundly affecting poverty, income distribution, and rural economic development in the villages from which the migrated. The results of this study compliment the findings of other IFPRI studies on poverty alleviation, income sources, and rural development. The study uses primary household data from small area of rural Egypt in a innovative way to address such vital questions as who immigrates, how remittances affect poverty and...
Tipo: Report
Palavras-chave: Rural development; Egypt; Finance; Emigrant remittances; Rural poor; Income distribution; Alien labor; Egyptian; Economic conditions; Food Security and Poverty; International Development.
Ano: 1991
URL: http://purl.umn.edu/42132

ESTIMATES OF DEMAND RELATIONSHIPS FOR APRICOTS AND APRICOT PRODUCTS
Provedor de dados: 31
Autores: French,   Ben C.; Eryilmaz,   Ali; Blackman,   Kathryn.
Apricots are a unique commodity in that they are used in four ways: for fresh markets and for canning, freezing, and drying. This article formulates a model of the demand system for this commodity and presents FIML and 2SLS estimates of the simultaneous components of the system. The empirical findings include estimates of price flexibilities and elasticities  and equations that predict prices and allocations among product forms, given the annual production.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/32594

Native American Entrepreneurs in North Dakota
Provedor de dados: 31
Autores: Goreham,   Gary A.; Rathge,   Richard W.
This report is an analysis of themes that emerged from interviews with 21 Native American entrepreneurs who live on North Dakota Indian reservations. The purpose of the study was to determine factors associated with entrepreneurial success on these reservations. A review of the data led to the following highlights: Most of the entrepreneurs credited their parents with having the greatest amount of influence on them, their values, and their entrepreneurship. Entrepreneurial qualities they learned from their parents included (1) how to work and the value of work, (2) the value of money, (3 self-esteem, and (4) parental involvement in training. The enterprises started by the entrepreneurs were, for the most part, "family businesses," which supported their...
Tipo: Report
Palavras-chave: Community/Rural/Urban Development.
Ano: 1991
URL: http://purl.umn.edu/51201

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes: Front Cover, Editorial Information, SAEA Officers 1968-1991, Contents Pages
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/30280

DECISION SUPPORT SYSTEMS FOR AGRICULTURE AND RURAL FUTURES
Provedor de dados: 31
Autores: Fuller,   Earl I.
Tipo: Working or Discussion Paper
Palavras-chave: Farm Management.
Ano: 1991
URL: http://purl.umn.edu/14162

Contents Page
Provedor de dados: 31
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/12345

SWINE BREEDING SYSTEMS: A STOCHASTIC EVALUATION WITH IMPLICATIONS FOR EMERGING TECHNOLOGY
Provedor de dados: 31
Autores: Massey,   Raymond E.; Williams,   Joseph E.
The after-tax net present value for 27 swine breeding systems composed of Duroc, Hampshire, and Yorkshire breeds were simulated and ordered using stochastic dominance analysis.  The concept of the value of information was expanded to develop the concept of the willingness to pay to adopt a new technology.  For producers not currently using the dominant system, estimates of the allowable present value cost of adoption are reported and used to explain diverse production practices.
Tipo: Journal Article
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1991
URL: http://purl.umn.edu/30310

WILL MARKET PRICES ENHANCE CHINESE AGRICULTURE?: A TEST OF REGIONAL COMPARATIVE ADVANTAGE
Provedor de dados: 31
Autores: Zhong,   Funing; Carter,   Colin A.
China is the world's largest producer and consumer of food. In the past, China's governmental policy advocated regional self-sufficiency in agricultural production, and it is generally believed that regional self-sufficiency was enforced at high economic cost. However, this changed with the 1979 economic reforms which encouraged some regional specialization. It is expected that there may be further shifts in regional production patterns and interregional trade flows. This article uses data on land productivity to test for regional comparative advantage, and it provides some empirical evidence on provincial comparative advantage in cotton versus grain production in China.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy; International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/32600

ECONOMICS OF SOME SWINE PRODUCTION SYSTEMS WITH REFERENCE TO ANIMAL WELFARE
Provedor de dados: 31
Autores: Lazarus,   William F.; Nordquist,   David; Eidman,   Vernon R.
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/14048

Retail Trade Area Analysis Crosby North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
This report is intended to provide an indepth trade area analysis of Crosby, North Dakota. Specific analyses included determining Crosby's main and greater trade areas, identifying the demographic profile of Crosby shoppers, examining important and less important services for patron shoppers of Crosby, identifying neighboring cities that area shoppers patronize, determining distances area shoppers traveled to Crosby, and listing popular newspapers and radio stations among area residents. Current trade area information for Crosby was obtained from a statewide trade area survey conducted by the Department of Agricultural Economics at North Dakota State University in 1989. Recent trends (1980 to 1989) in Crosby population, retail sales, per capita income,...
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Financial Economics.
Ano: 1991
URL: http://purl.umn.edu/51309

INTEGRATED ASSESSMENT OF ENVIRONMENTAL EFFECTS FROM AGRICULTURAL PRODUCTION
Provedor de dados: 31
Autores: Lee,   John G.; Lovejoy,   Stephen B.
Agriculture's impact on the environment is a complex research problem.  A challenge to future economic research is to account for the interrelationship between agricultural production activities, soil productivity, erosion, and water quality.  It will become increasingly important to determine not only the economic consequences, but also the environmental effectiveness of alternative policies aimed at improving resource use and quality.  The application of biophysical simulation models to environmental quality problems provides a means to better understand the complex interaction between agricultural production and environmental quality.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/28821

IS THE DEMAND FOR AGRICULTURAL EXPERIMENT STATION PERSONNEL DECLINING?
Provedor de dados: 31
Autores: Peterson,   Willis L.
Demand functions for teaching, research and extension (TRE) personnel in seven administrative units of U.S. agricultural experiment stations are estimated from panel data, decennial observations, 1950 to 1987. The results suggest that the TRE staffing during the 1950s and 1960s was smaller than predicted but that the catching up process was in large part completed during the 1970s. Although there is no sign of an unexplained decrease in TRE demand during the 1980s, prospects of zero growth during the 1990s implies a substantial reduction in replacement demand for new Ph.Ds compared to earlier times. Zero growth has implications for the design of Ph.D programs since the majority of future graduates will find employment outside of experiment stations and...
Tipo: Working or Discussion Paper
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/13246

The Causes of Economic Inefficiencies in New York Dairy Farms
Provedor de dados: 31
Autores: Thomas,   Arthur C.; Tauer,   Loren W.
Technical and overall cost efficiencies are measured for 125 New York dairy farms. Explanatory models of efficiencies are estimated to determine how farms can increase their efficiencies. Changes in efficiencies are explained by changes in both assets and prices. Efficiency levels are explained by farm and operator characteristics.
Tipo: Working Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/121482

The Economic Significance of Environmental Resources: A Review of the Evidence
Provedor de dados: 31
Autores: Young,   Ralph.
This paper reviews briefly the approaches employed for generating value estimates for unpriced environmental resources, with particular attention being paid to the contingent valuation method. Estimates of value for environmental products and services for both the United States and Australia are presented. This evidence clearly demonstrates that a wide range of unpriced environmental resources have significant economic value to the community. The paper concludes with a discussion of the implications for project development, funding and policy in Australia.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/12392

Labor-intensive public works for food security: Experience in Africa
Provedor de dados: 31
Autores: von Braun,   Joachim; Teklu,   Tesfaye; Webb,   Patrick.
Tipo: Working or Discussion Paper
Palavras-chave: Food Security and Poverty.
Ano: 1991
URL: http://purl.umn.edu/45871

Legal Rights of Debtors and Creditors--Impact of Debtor/Creditor Relationship on Personal Property
Provedor de dados: 31
Autores: Saxowsky,   David M.; Monson,   Eric.
The financial stress and economic difficulties which characterized sectors of the agriculture industry during the 1980s may continue to trouble some producers into the 1990s as a result of drought and international competition. This report explains legal alternatives available to creditors for using a borrower's personal property to satisfy debt secured with personal property as well as unsecured debt. A debt is secured when a creditor has a lien; that is, the legal right to seize and use some of the borrower's property to pay an obligation. An unsecured debt is not accompanied with a legal right entitling the creditor to seize some of the borrower's property if the obligation is not paid. Instead, a creditor must convince a court that an amount is owed,...
Tipo: Report
Palavras-chave: Consumer/Household Economics; Financial Economics.
Ano: 1991
URL: http://purl.umn.edu/51198

Retail Trade Area Analysis Langdon North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
This report is intended to provide an indepth trade area analysis of Langdon, North Dakota. Specific analyses included determining Langdon's main and greater trade areas, identifying the demographic profile of Langdon shoppers, examining important and less important services for patron shoppers of Langdon, identifying neighboring cities that area shoppers patronize, determining distances area shoppers traveled to Langdon, and listing popular newspapers and radio stations among area residents. Current trade area information for Langdon was obtained from a statewide trade area survey conducted by the Department of Agricultural Economics at North Dakota State University in 1989. Recent trends (1980 to 1989) in Langdon population, retail sales, per capita...
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Financial Economics.
Ano: 1991
URL: http://purl.umn.edu/51314

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes: Front Cover, Subjects Discussed at Previous Conferences, National Public Policy Education Committee, Foreword, Contents Pages, Abstracts
Tipo: Conference Paper or Presentation
Ano: 1991
URL: http://purl.umn.edu/17466

POTENTIAL FOR SEAFOOD PRODUCT DEVELOPMENT: AN OVERVIEW
Provedor de dados: 31
Autores: Rippen,   Tom.
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/26492

Retail Trade Area Analysis Hillsboro North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
This report is intended to provide an indepth trade area analysis of Hillsboro, North Dakota. Specific analyses included determining Hillsboro's main and greater trade areas, identifying the demographic profile of Hillsboro shoppers, examining important and less important services for patron shoppers of Hillsboro, identifying neighboring cities that area shoppers patronize, determining distances area shoppers traveled to Hillsboro, and listing popular newspapers and radio stations among area residents. Current trade area information for Hillsboro was obtained from a statewide trade area survey conducted by the Department of Agricultural Economics at North Dakota State University in 1989. Recent trends (1980 to 1989) in Hillsboro population, retail sales,...
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Financial Economics.
Ano: 1991
URL: http://purl.umn.edu/51277

MEASURING AND EXPLAINING THE DECLINE IN U.S. COTTON PRODUCTIVITY GROWTH
Provedor de dados: 31
Autores: Cooke,   Stephen C.; Sundquist,   W. Burt.
Tornquist input quantity indices were used to derive total and partial factor productivity measures for U.S. cotton across time, region, and scale.  Total factor productivity for U.S. cotton increased .2 percent per year between 1974 and 1982.  Partial productivity measures revealed that yield growth was about .6 percent and input use grew about .4 percent per year.  Cotton enterprises in Alabama and Mississippi gained and those in the Texas High Plains lost competitive advantage relative to California.  In 1982, very large (1750-5900 acres) and large (950-1749 acres) cotton enterprises were 2 percent more productive than medium-size enterprises (570-949 acres).
Tipo: Journal Article
Palavras-chave: Productivity Analysis.
Ano: 1991
URL: http://purl.umn.edu/30305

The Optimality of Input Allocations by Massachusetts Dairy Farmers
Provedor de dados: 31
Autores: Lass,   Daniel A.; Gempesaw,   Conrado M., II.
Tipo: Journal Article
Palavras-chave: Agribusiness; Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/62308

Induced Technical Change in Centrally Planned Economies
Provedor de dados: 31
Autores: Fan,   Shenggen; Ruttan,   Vernon W.
It has generally been assumed that the inferences of the induced technical change model with respect to the direction of technical change could not be expected to hold for the centrally planned economies. In this paper we test three hypotheses generated from the induced technical change hypotheses against the experience of centrally planned economies: (a) if land becomes increasingly scarce new technology will be biased in a land-saving direction; (b) if labor becomes increasingly scarce new technology will be biased in a laborsaving direction; and (c) changes in the land-labor ratio have been induced by changes in relative factor endowments. The results suggest a bias toward mechanical and against biological technology regardless of factor endowments....
Tipo: Working or Discussion Paper
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1991
URL: http://purl.umn.edu/7469

A NOTE ON THE FACTORS AFFECTING CORN BASIS RELATIONSHIPS
Provedor de dados: 31
Autores: Naik,   Gopal; Leuthold,   Raymond M.
Empirical tests were made of components of the corn basis in the U.S. utilizing a general theory of intertemporal price relationships for storable commodities.  These tests showed that the basis consists of a risk premium, a speculative component, and a maturity basis apart from other factors such as storage costs for storable commodities.  The results provide insights into factors affecting basis patterns for corn.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/30309

Book Reviews
Provedor de dados: 31
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/46264

COMMERCIAL AGRICULTURE AND THE ENVIRONMENT: AN EVOLUTIONARY PERSPECTIVE
Provedor de dados: 31
Autores: Phipps,   Tim T.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/29024

FEEDER CATTLE PRICE DIFFERENTIALS IN GEORGIA TELEAUCTIONS
Provedor de dados: 31
Autores: Turner,   Steven C.; Dykes,   Nancy S.; McKissick,   John C.
Three Georgia feeder cattle teleauction markets were analyzed from 1977 to 1988 to estimate the impacts of cattle characteristics and market conditions on prices. Cattle characteristic price impacts were similar to those in previous studies. The impact of feeder cattle futures price on teleauction price was positive but varied across markets. Optimal lot size ranged from 143 to 276 head. In one market, 14 lots were necessary to generate positive price impacts. Additional buyers were estimated to have a $.30/cwt per buyer impact on price.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/30047

PRESIDENTS, 1955-92, AND EDITORS, 1972-91
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/29022

SOME MARKET POWER IMPLICATIONS OF THE SHIPPING ACT OF 1984: A CASE STUDY OF THE U.S. TO PACIFIC RIM TRANSPORTATION MARKETS
Provedor de dados: 31
Autores: Wilson,   Wesley W.; Casavant,   Kenneth L.
The shipping Act of 1984 represents a new attempt to balance the benefits of a conference (cartel) system against its costs. This legislation may have increased conference market power by streamlining the regulatory process and expanding antitrust immunity. Alternatively, the legislation may have decreased conference market power by providing for the Mandatory Right to Independent Action and Service Contracts. We develop and estimate an econometric model and find that any increased market power is offset by competitive provisions when those competitive provision apply. However, when those provisions do not apply, the Act may increase market power.
Tipo: Journal Article
Palavras-chave: Industrial Organization.
Ano: 1991
URL: http://purl.umn.edu/32596

RISK AND EQUITY IN AGRICULTURAL COOPERATIVES
Provedor de dados: 31
Autores: Parliament,   Claudia; Lerman,   Zvi; Huseby,   Dana.
This research examines the effects of risk-related factors on the proportion of equity held by agricultural cooperatives. The empirical analysis indicates that capital structure is significantly affected by the level and variation of profitability, commodities handled, and market function. The proportion of equity is not affected by size or pooling. Contrary to expectations, the results indicate an inverse relation between profit variability and the proportion of equity. Cooperatives rely on profit for equity accumulation through retained earnings. If this source of equity is unstable, the cooperative may not be able to generate sufficient equity causing the estimated inverse relationship.
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/14032

Geographic Price Relationships Under Federal Milk Marketing Orders
Provedor de dados: 31
Autores: Novakovic,   Andrew M.; Pratt,   James E.
Tipo: Working Paper
Palavras-chave: Demand and Price Analysis; Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/123110

A Reevaluation of GDU Irrigation
Provedor de dados: 31
Autores: Leitch,   Jay A.; Baltezore,   James F.; Johnson,   Roger G.; Coon,   Randal C.
Tipo: Technical Report
Palavras-chave: Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/121415

Financial considerations of public inventory holdings in developing countries
Provedor de dados: 31
Autores: Adelman,   Irma; Berck,   Peter.
Tipo: Working or Discussion Paper
Palavras-chave: Consumption; Investments; Public finance; Risk.
Ano: 1991
URL: http://purl.umn.edu/43739

MINUTES OF THE ANNUAL BUSINESS MEETING, NORTHEASTERN AGRICULTURAL AND RESOURCE ECONOMICS ASSOCIATION, UNIVERSITY OF NEW HAMPSHIRE, DURHAM, NEW HAMPSHIRE, JUNE 18, 1991
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/29011

Bulgaria—A Long and Winding Road to Democracy and a Market Economy: The Special Problems of Agricutlure
Provedor de dados: 31
Autores: Petkov,   Christo; Dichev,   Dimo.
Tipo: Working Paper
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/121478

RESOURCE USE, EFFICIENCY, AND RETURNS TO SCALE IN PAKISTAN: A CASE STUDY OF THE PESHAWAR VALLEY
Provedor de dados: 31
Autores: Hussain,   Anwar.
Tipo: Working or Discussion Paper
Palavras-chave: Productivity Analysis; Resource /Energy Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/13627

Selected Characteristics of North Dakota Farm Families Engaged in Sustainable Agricultural Practices
Provedor de dados: 31
Autores: Jacobsen,   Roy M.; Youngs,   George A., Jr.; Goreham,   Gary A.; Watt,   David L.; Dahl,   Bruce L.; Sell,   Randall S.; Stearns,   Larry D.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; Farm Management; Resource /Energy Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/23413

REGIONAL AND FARM-LEVEL RISK ANALYSES WITH THE SINGLE-INDEX MODEL
Provedor de dados: 31
Autores: Turvey,   Calum G.
This paper estimates single-index model (SIM) beta coefficients for the major cash crops of Ontario's agricultural-producing counties.  Beta coefficients are estimated using per acre gross revenues weighted by (1) the proportion of each crop planted in each county and (2) equal weights.  The results show that sometimes substantial differences arise from these procedures.  Implications for government policy and farm-level risk-management strategies are discussed.  A practical approach for using SIM for farm management purposes is presented and the effects of systematic and nonsystematic risk are discussed.
Tipo: Journal Article
Palavras-chave: Risk and Uncertainty.
Ano: 1991
URL: http://purl.umn.edu/29018

Outlook for New York Farm Milk Prices With or Without an Emergency Order
Provedor de dados: 31
Autores: Novakovic,   Andrew M.
Tipo: Working Paper
Palavras-chave: Demand and Price Analysis; Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/121387

A dynamic differential demand system: an application of translation
Provedor de dados: 31
Autores: Brown,   Mark G.
The differential demand system or Rotterdam model is extended to include lagged consumption through translation parameters, providing an alternative to simply adding constant terms to the model to allow for trends in consumption and changes in tastes.  Application of the model to four broadly defined groups of goods indicates significant lag effects, resulting in differences in short-run and long-run income and price responses.
Tipo: Report
Palavras-chave: Differential demand system; Translation; Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/52716

RURAL AMERICA'S COMPETITIVE CHALLENGE: STRATEGIES FOR THE FUTURE
Provedor de dados: 31
Autores: Welch,   Kelly; Drabenstott,   Mark.
Tipo: Conference Paper or Presentation
Palavras-chave: Community/Rural/Urban Development.
Ano: 1991
URL: http://purl.umn.edu/17471

CORE MONOGRAPHS IN AGRICULTURAL ECONOMICS: SURVEY REPORT
Provedor de dados: 31
Autores: Sondag,   Pauline; Dote,   Grace; Letnes,   Louise.
Tipo: Working or Discussion Paper
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/11760

A RECOGNITION OF HEALTH AND NUTRITION FACTORS IN FOOD DEMAND ANALYSIS
Provedor de dados: 31
Autores: Capps,   Oral, Jr.; Schmitz,   John D.
A theoretical framework in which to formally consider health and nutrition factors in demand analyses is developed. The framework is employed to empirically identify and assess the impacts of information pertaining to cholesterol on the demands for beef, pork, poultry, and fish. Issues in considering health and nutrition factors in food demand analysis are documented.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis; Food Consumption/Nutrition/Food Safety.
Ano: 1991
URL: http://purl.umn.edu/32631

AN ANALYSIS OF A UNITED STATES-CANADA-MEXICO FREE TRADE AGREEMENT
Provedor de dados: 31
Autores: Grennes,   Thomas J.; Estrada,   Julio Hernandez; Krissoff,   Barry; Matus Gardea,   Jaime Arturo; Sharples,   Jerry A.; Valdes,   Constanza.
This is one of two papers commissioned by the International Agricultural Trade Research Consortium on various aspects related to the agricultural sector of a prospective North American Free Trade Agreement. The companion paper to this one has been prepared by a working group chaired by Richard Barichello, University of British Columbia.  To minimize duplication with the Barichello paper this paper has given greater attention to the role of Mexico, currency exchange rates, and explicit modeling of the trade relationship.
Tipo: Report
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/14616

BOOK REVIEWS
Provedor de dados: 31
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/22761

U.S. Export Subsidies in Wheat: Strategic Trade Policy or An Expensive Beggar-My-Neighbor tactic?
Provedor de dados: 31
Autores: Anania,   Giovanni; Bohman,   Mary; Carter,   Colin A.
This paper examines the domestic and international impacts of the United States' Export Enhancement Program (EEP) in the wheat market. EEP uses targeted in-kind subsidies to expand U.S. exports and was specifically designed to compete with subsidized exports from the European Community (EC). Theoretically, we argue that the EEP program cannot be a welfare improving trade policy for the U.S., even when considering strategic trade theory. We then model EEP as an in-kind, constrained targeted export subsidy and determine its price, quantity and budgetary effects. Our empirical results show that no exporting country gains from EEP and that the intended loser, the EC, is only slightly harmed. We find only a small increase in U.S. wheat exports due to the export...
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/51148

ECONOMIC IMPACTS OF CHEMICAL USE REDUCTION ON THE SOUTH
Provedor de dados: 31
Autores: Taylor,   C. Robert; Penson,   John B., Jr.; Smith,   Edward G.; Knutson,   Ronald D.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/30282

Demand for Florida fresh specialty citrus
Provedor de dados: 31
Autores: Brown,   Mark G.; Muraro,   Ronald P.
Tipo: Report
Palavras-chave: Demand; Florida; Specialty citrus; Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/52714

Enforcing Food Safety Standards
Provedor de dados: 31
Autores: van Ravenswaay,   Eileen O.; Bylenga,   Sharon A.
Tipo: Journal Article
Palavras-chave: Agribusiness; Food Consumption/Nutrition/Food Safety.
Ano: 1991
URL: http://purl.umn.edu/62298

MONITORING MINNESOTA'S ECONOMIC PERFORMANCE IN THE 1990S
Provedor de dados: 31
Autores: Maki,   Wilbur R.
Tipo: Working or Discussion Paper
Palavras-chave: Community/Rural/Urban Development.
Ano: 1991
URL: http://purl.umn.edu/13551

Demand for orange-juice products: an application of the uniform substitute model
Provedor de dados: 31
Autores: Brown,   Mark G.; Lee,   Jonq-Ying.
The differential demand model for uniform substitutes is used to analyze demand for orange-juice products.  Consumption trends are examined by allowing the marginal propensities to consume to vary with time.  Results indicate ready-to-serve (frozen concentrated) orange juice has become more (less) sensitive to expenditure and prices.
Tipo: Report
Palavras-chave: Orange juice; Rotterdam model; Uniform substitute; Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/52718

A Comparative Financial Ratio Analysis of U.S. Farmer Cooperatives Using Nonparametric Statistics
Provedor de dados: 31
Autores: Royer,   Jeffrey S.
A comparative ratio analysis using nonparametric statistical methods provides no evidence to support the hypothesis that U.S. farmer cooperatives generally are financially weaker than other firms. Although some cooperative groups had lower current ratios than industry standards, most of these groups consisted of marketing associations for which differences may be explained largely by the unique business relationships between the associations and their patrons. Comparisons of debt/equity ratios indicate that, except for regional grain and farm supply associations, cooperatives generally are less leveraged than other firms. The overall financial strength of cooperatives appears better than during the early 1980s.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/46257

Dairy Farm Management: Business Summary, New York State, 1990
Provedor de dados: 31
Autores: Smith,   Stuart F.; Knoblauch,   Wayne A.; Putnam,   Linda D.
This summary and analysis of 395 New York dairy farm businesses demonstrates the use o~ up to date methods of cash and accrual accounting to measure cash flow, farm profitability, and financial growth. Traditional methods of analyzing dairy farm businesses are combined with new evaluation techniques to show the relationship between good management performance and financial success. These farms averaged 107 cows per farm and 17,720 pounds of milk sold per cow in 1990, which are above the average size and management level of all New York dairy farms. Net farm income excluding appreciation, which is the return to the operator's labor, management, capital, and other unpaid family labor, averaged $47,020 per farm. The rate of return to all capital with...
Tipo: Working Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/123100

Mathematical Formulas for Calculating Net Returns from Participation in Government Farm Programs: Provisions of the Food, Agricultural, Conservation and Trade Act of 1990
Provedor de dados: 31
Autores: Berends,   Patrick T.; Williams,   Jeffery R.; Barnaby,   Glenn Arthur, Jr.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy; Agricultural Finance.
Ano: 1991
URL: http://purl.umn.edu/118193

Agricultural Policymaking in Germany: Implications for the German Position in Multilateral Trade Negotiations
Provedor de dados: 31
Autores: Tangermann,   Stefan; Kelch,   David R.
This paper analyzes the historical development of German agriculture and agricultural policy with the purpose of providing a deeper understanding of the German position in international negotiations on agricultural trade.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy; International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/51139

CLIMATE CHANGE AND AGRICULTURE
Provedor de dados: 31
Autores: Kaiser,   Harry M.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/29020

PROFESSIONAL DIVERSITY IN AGRICULTURAL ECONOMICS: SALVATION OR SUICIDE?
Provedor de dados: 31
Autores: Libby,   Lawrence W.
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/30297

PRINCIPLES AND TECHNIQUES LEARNED FROM THE IOWA PUBLIC POLICY EDUCATION PROJECT
Provedor de dados: 31
Autores: Edelman,   Mark A.
Tipo: Conference Paper or Presentation
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/17468

THE DEREGULATION OF NEW ZEALAND AGRICULTURE: MARKET INTERVENTION (1964-84) AND FREE MARKET READJUSTMENT (1984-90)
Provedor de dados: 31
Autores: Johnston,   Warren E.; Frengley,   Gerald A.G.
The impacts of deregulation on New Zealand's agricultural sector are examined. Economic liberalization of all sectors of economic activity is the hallmark of current economic policy designs in New Zealand. This is in sharp contrast to previous policies reliant on massive government assistance to and intervention in agriculture. The study provides insights into the cumulative and distortionary extent of previous assistance policies, discusses the rationale in removing public financial assistance, and reviews the readjustment process. As a case study, New Zealand's experience reveals difficulties which may confront farmers in other economies where policy makers seek a return to free market conditions.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 1991
URL: http://purl.umn.edu/32633

ADJUSTABLE -TERM FINANCING OF FARM LOANS
Provedor de dados: 31
Autores: Pederson,   Glenn D.; Duffy,   Michael D.; Boehlje,   Michael; Craven,   Robert.
Firm-level simulation is used to analyze farm financial performance with adjustable-rate, adjustable-term, and fixed-rate financing. Adjustable-term financing is accomplished by changing the term of the loan, instead of payment size, when interest rates change. Simulation results indicate that the adjustable-term loan is an innovation which reduces the cash flow destabilizing effects of volatile interest rates.
Tipo: Journal Article
Palavras-chave: Agricultural Finance.
Ano: 1991
URL: http://purl.umn.edu/32601

COST COMPARISONS OF ALTERNATIVE METHODS FOR PROCESSING RECYCLED WASTE NEWSPAPERS INTO FARM-ANIMAL BEDDING
Provedor de dados: 31
Autores: Beierlein,   James G.; McSweeny,   William T.; Woodruff,   Barbara A.
The United States is facing a seemingly overwhelming problem of how to dispose of its solid waste.  For disposal solutions to be viable, they must be environmentally sound and economically viable.  Processing waste newspapers for farm-animal bedding offers a successful partial solution that meets both criteria.  Centralized newspaper chopping is found to cost less than on-farm chopping.  Both chopped and unchopped waste newspapers can be economically transported considerable distances.  The use of waste newspapers for animal bedding is economically attractive at the farm level and can provide a partial solution to the solid-waste disposal problem.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy; Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/29015

FARM ANIMAL WELFARE: CRISIS OR OPPORTUNITY FOR AGRICULTURE?
Provedor de dados: 31
Autores: Halverson,   Marlene K.
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/13979

Effects of Animal Health Regulations on Market Access for Exports of Livestock Products
Provedor de dados: 31
Autores: Forsythe,   Kenneth W., Jr.; Bredahl,   Maury E.
Tipo: Journal Article
Palavras-chave: Agribusiness; Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/62310

THE LOCATIONAL DETERMINANTS OF WESTERN NONMETRO HIGH TECH MANUFACTURERS: AN ECONOMETRIC ANALYSIS
Provedor de dados: 31
Autores: Barkley,   David L.; Keith,   John E.
The Tobit estimation procedure was used to determine the factors which influence the location and size of high technology manufacturers in nonmetro areas in the West. The results indicate that high tech branch plants tend to locate in populous counties adjacent to Metropolitan Statistical Areas (MSAs). Percent of local employment in manufacturing and agriculture was inversely related to branch plant employment, and the stock of human capital was not significantly related to employment. High tech unit plants also exhibited a propensity to locate in the more populous counties. Unlike branch plants, the unit concerns were more likely to develop or locate in communities with a highly educated work force and at greater distances from metro areas. The unit...
Tipo: Journal Article
Palavras-chave: Industrial Organization; Labor and Human Capital.
Ano: 1991
URL: http://purl.umn.edu/32592

A TARGET MOTAD ANALYSIS OF SWEET POTATO MARKETING
Provedor de dados: 31
Autores: Bauer,   Larry L.
Decisions regarding when to harvest and when to sell sweet potatoes are more complex than for other crops because yields continue to increase after the crop is initially ready for harvest, and sweet potatoes can either be sold at harvest or cured and stored for later sale. The optimum marketing decision, based on expected net revenue, is dependent on yield and prices and their variability, and on costs of storage. A marketing strategy is developed using Target MOTAD and data covering 21 years.
Tipo: Journal Article
Palavras-chave: Marketing.
Ano: 1991
URL: http://purl.umn.edu/30055

ANALYSIS OF CONSUMER ATTITUDES TOWARD ORGANIC PRODUCE PURCHASE LIKELIHOOD
Provedor de dados: 31
Autores: Byrne,   Patrick J.; Toensmeyer,   Ulrich C.; German,   Carl L.; Muller,   H. Reed.
This study demographically determines: which consumers are currently buying organic produce; consumer comparisons of organic and conventional produce; and consumer purchase likelihood of higher-priced organic produce. Data were collected from a Delaware consumer survey, dealing with fresh produce and food safety. Multinomial and ordered logit models were developed to generate marginal effects of age, gender, education, and income. Increasing age, males, and advancing education demonstrated positive effects on the likelihood that the consumer was not a regular purchaser of organic produce. Respondents with at least a Bachelor degree were more likely to have organic purchase experience among the non-regular purchasers. A majority of respondents rated...
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics.
Ano: 1991
URL: http://purl.umn.edu/27608

PERSPECTIVES ON THE SALE OF HUNTING ACCESS RIGHTS TO PRIVATE LANDS IN MINNESOTA
Provedor de dados: 31
Autores: Taff,   Steven J.
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 1991
URL: http://purl.umn.edu/13712

AN ANALYSIS OF LAND DISTRIBUTION AND CONCENTRATION IN BOLIVIA
Provedor de dados: 31
Autores: Valdivia,   Fernando Crespo.
Despite the implementation of Bolivia's land reform in 1953, the agrarian structure continues to have an extreme concentration of land.  Furthermore, in the last two decades regional agrarian structure have been aggravated by population pressures and a lack of new technological practices for most small scale farmers and peasants. Public and private institutions and urban residents observe hundreds of landless and near-landless families in the cities searching for jobs. Most end up becoming part of the growing unemployed labor force in the urban sector.  The lack of industrialization policies to create job opportunities for the rural population and the explosive population growth in some rural area has contributed to the increasing levels of poverty among...
Tipo: Thesis or Dissertation
Palavras-chave: Land Economics/Use.
Ano: 1991
URL: http://purl.umn.edu/11003

INSTITUTIONAL DIFFERENCES IN INTELLECTUAL PROPERTY RIGHTS AND THEIR CONSEQUENCES ON RESEARCH AND DEVELOPMENT OF PLANT BIOTECHNOLOGY BETWEEN THE U.S.A. AND JAPAN
Provedor de dados: 31
Autores: Sakurai,   Takeshi.
Biotechnology, especially genetic engineering, is a revolutionary tool in life-science research. When it came, people thought it would have the greatest impact both on pharmaceutical and agriculture industries, because both are directly based on knowledge of life-science. As a matter of fact, a lot of knowledge of life at molecular level has been produced using the technology and it is giving big impacts to various industries. With respect to agriculture, to accumulate knowledge on plant physiology at the molecular level is important not just for plant genetic engineering, but to develop a future agricultural system that will be sustainable, environmentally safe and/or productive enough to satisfy expanding global population.  Though the benefit is...
Tipo: Thesis or Dissertation
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1991
URL: http://purl.umn.edu/11013

ECONOMIES OF SCALE IN AGRICULTURE: A REEXAMINATION OF THE EVIDENCE
Provedor de dados: 31
Autores: Kislev,   Yoav; Peterson,   Willis L.
It is generally accepted that agricultural production is characterized by increasing returns to scale. In this paper we examine the evidence allegedly supporting this assertation and come to the conclusion that the hypothesis of increasing returns is not warranted. The essence of our argument is that if increasing returns were important we would have seen huge "food factories" dominating the industry. Instead, the dominating form of organization is the family unit and farms come in a multitude of sizes--as can be expected in a constant cost industry.
Tipo: Working or Discussion Paper
Palavras-chave: Industrial Organization.
Ano: 1991
URL: http://purl.umn.edu/13652

The Political Economy Of Systematic Government Intervention In Agriculture
Provedor de dados: 31
Autores: Sarker,   Rakhal; Meilke,   Karl D.; Hoy,   Michael.
The systematic subsidization and exploitation of agriculture by developed and developing countries respectively, has generated a policy paradox for which there is no satisfactory explanation. This paper attempts to provide an explanation of this policy paradox. It first develops a simple political economy model which treats an interest group's relative political weight as endogenous. Interest groups compete in the political market to improve their relative political weight. This relative political weight appears as a parameter in the government's political preference function. The government maximizes the value of this function subject to the constraints imposed by the economic market to determine the level of a policy. The model is then estimated for...
Tipo: Working Paper
Palavras-chave: Political Economy.
Ano: 1991
URL: http://purl.umn.edu/123574

THE EFFECTS OF FLEXIBLE EXCHANGE RATES ON AUSTRALIAN WOOL PRICES
Provedor de dados: 31
Autores: Phillips,   Shauna; Bewley,   Ronald A.
The implication of price stabilisation under a volatile exchange rate is an increasingly volatile price denominated in a foreign currency. Time series analysis is used to model the relationship between exports, prices and AWC stocks. This model is used to assess the distribution of the impact of exchange rate shocks on prices denominated in local and foreign currencies. It is found that the AWC has significantly reduced the impact of exchange rate shocks on domestic prices.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/22931

THE IMPACT OF EQUIVALENCE SCALES ON THE ANALYSIS OF INCOME AND FOOD SPENDING DISTRIBUTIONS
Provedor de dados: 31
Autores: Blaylock,   James R.
This article examines the effects of different income and food spending adult equivalence scales on estimated expenditure elasticities, on the demographic characteristics of the rich and poor, and on the percentage of household income spent on food by various income quintiles. Empirical results are found to be heavily influenced by the choice of equivalence scales. For example, elasticities varied by over 300%, and the demographic characteristics of the poor varied greatly.
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics; Food Consumption/Nutrition/Food Safety.
Ano: 1991
URL: http://purl.umn.edu/32623

Inqérito ao Sector Familiar da Província de Nampula: Obseravações Metodológicas
Provedor de dados: 31
Ministry of Agriculture and Rural Development: Directorate of Economics, Republic of Mozambique
Tipo: Working or Discussion Paper
Palavras-chave: Food security; Food policy; Mozambique; Food Security and Poverty; Q18.
Ano: 1991
URL: http://purl.umn.edu/55917

ESTIMATING PRODUCTIVITY CHANGES WITH FLEXIBLE COEFICIENTS
Provedor de dados: 31
Autores: Dorfman,   Jeffrey H.; Foster,   Kenneth A.
Technical progress in U.S. agriculture is evaluated using a new measure of productivity growth, flexible technical change. This measure allows for nonconstant returns to scale, market structures other than perfect competition, and time-varying coefficients. An integral part of the procedure is the estimation of the production function by Flexible Least Squares. Flexible technical change results are compared with two traditional measures of productivity growth and found to be more stable and more precise in a statistical sense. The results suggest that previous studies which employed total factor productivity measures may have overstated the impact of technology in agriculture.
Tipo: Journal Article
Palavras-chave: Flexible least squares; Productivity; Technical change; Time-varying coefficients; Productivity Analysis.
Ano: 1991
URL: http://purl.umn.edu/32615

Incentives and Constraints in the Transformation of Punjab Agriculture
Provedor de dados: 31
Autores: McGuirk,   Anya M.; Mundlak,   Yair.
The introduction of modern crops varieties in the mid-1960s caused a dramatic change, known as the “green revolution”, in agricultural production in Asia, as elsewhere. However, in spite of their yields, the process of adoption of these varieties has taken a long time, and even today traditional varieties are still widely grown. Various reasons, such as imperfect information, uncertainty, inadequate human capital, and institutional constraints, have been given for this slow diffusion. This research during 1960-79 emphasizes the role of economic incentives and resource availability in determining the pace of technology adoption.   Only three years after their introduction, the modern wheat varieties accounted for 70 percent of the wheat area in Punjab....
Tipo: Report
Palavras-chave: Agriculture; Economic aspects; India; Punjab; International Development.
Ano: 1991
URL: http://purl.umn.edu/42125

A STUDY OF THE LIVESTOCK MANURE ISSUE AS IT RELATES TO THE MICHIGAN SWINE INDUSTRY
Provedor de dados: 31
Autores: Norgaard,   Kurt J.
As the number of animals per farm have increased, the amount of manure on the individual farms has risen accordingly.  With this greater volume of manure, there is a greater potential for pollution and a greater need to manage the manure in an appropriate manner.  This increased amount of manure with an increased rural population has resulted in an escalating number of conflicts between livestock producers and their neighbors.  In attempts to resolve these conflicts, the need for generally accepted waste management practices has been revealed.  The intent of this study is to describe, assess, and analyze livestock manure management issues with specific analytic attention addressed to the swine enterprise.  Swine was selected because of its economic...
Tipo: Thesis or Dissertation
Palavras-chave: Livestock Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/11126

END MATERIALS
Provedor de dados: 31
Includes: Call for Papers, Guidelines for Manuscript Submission, Back Cover
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/28819

CONSUMER CONCERNS ABOUT SEAFOOD
Provedor de dados: 31
Autores: Mason-Jenkins,   Gayle.
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics.
Ano: 1991
URL: http://purl.umn.edu/26486

STRATEGIES FOR FOOD DISTRIBUTION IN THE 1990S: CHALLENGE FOR TOMORROW
Provedor de dados: 31
Autores: Swackhamer,   Gene L.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/26489

LESSONS LEARNED FROM THE NORTHEAST NETWORK PROJECT
Provedor de dados: 31
Autores: Maretzki,   Audrey N.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1991
URL: http://purl.umn.edu/17462

THOUGHTS ON BUILDING AN ACADEMIC CAREER
Provedor de dados: 31
Autores: Ladd,   George W.
We have many routes to success in agricultural economics: extension education, resident teaching, advising, research, and public service. In selecting problems to study we must be sensitive to needs of all our clientele. Several production economics concepts are relevant to allocating our own efforts. Noticing, recognizing, and experiencing surprise aid scientific discovery. We need to use heuristics, intuition, deduction, and induction, though consideration of science's ideal and real types shows that all these mental processes are fallible. We need special theories that have broad application. Replication deserves high priority. A few thoughts on the manuscript review process are presented.
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/32625

HEDONIC PRICING FOR A COST BENEFIT ANALYSIS OF A PUBLIC WATER SUPPLY SCHEME
Provedor de dados: 31
Autores: Coelli,   Tim J.; Lloyd-Smith,   J.; Morrison,   D.; Thomas,   J.
During the 1950s and 1960s pipelines were built to provide water to many farms in the central wheatbelt of Western Australia using public funds. The resulting network has become known as the Comprehensive Water Supply Scheme. The expansion of the Scheme is currently under consideration. An ex ante cost benefit analysis of the proposed expansion is undertaken. An earlier analysis which focused on the benefits of the reduced necessity to cart water was rejected by farmer groups because of the inability of the analysis to properly account for domestic benefits and risk reduction. To overcome these criticisms a hedonic model of farm land values is formulated in which the independent variables are the characteristics of a property, including whether or not the...
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/22924

Structural Change and Performance of Grain Marketing Cooperatives
Provedor de dados: 31
Autores: Dahl,   Reynold P.
The U.S. grain marketing system has undergone many structural changes in the 1980s. In no part of the system has structural change been more far-reaching and extensive than in farmer-owned cooperatives. The purpose of this paper is to analyze changes in grain marketing and induced structural adjustments in grain marketing cooperatives at the local, regional, and interregional levels. The impact of these structural changes on the competitive posture of cooperatives in the grain marketing system is also discussed along with structural adjustments anticipated in the 1990s.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/46261

SEASONALITY IN COMMUNITY WATER DEMAND
Provedor de dados: 31
Autores: Griffin,   Ronald C.; Chang,   Chan.
Secondary data and survey information are used to develop a large data set for analyzing water demand in 221 communities. The resulting monthly data are employed to examine seasonal variability in consumer price sensitivity. Several functional forms are contrasted for their abilities to identify monthly price elasticities. Results demonstrate the statistical contribution of a new climate variable for fitting monthly data, generally indicate that summer price elasticities exceed winter price elasticities by 30%, and appear to reject the use of the translog functional form as well traditional linear and Cobb-Douglas forms for statistical analyses of pooled monthly data. The generalized Cobb-Douglas and augmented Fourier forms are more viable alternatives for...
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis; Resource /Energy Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/32611

Risk Assessment, Economics and Chemicals in Foods
Provedor de dados: 31
Autores: Lichtenberg,   Erik.
Tipo: Journal Article
Palavras-chave: Food Consumption/Nutrition/Food Safety; Health Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/61454

Retail Trade Area Analysis Cavalier North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
Tipo: Technical Report
Palavras-chave: Consumer/Household Economics; Financial Economics.
Ano: 1991
URL: http://purl.umn.edu/119430

WHAT ROLE FOR LEUCAENA LEUCOCEPHALA IN MEETING KENYA'S FUELWOOD DEMAND?:A BIOECONOMIC MODEL
Provedor de dados: 31
Autores: Stone,   Steven W.; Kyle,   Steven C.; Conrad,   Jon M.
Shortages of wood for burning and construction have begun to create serious environmental problems in sub-Saharan Africa. Kenya is of particular interest both because of its high population pressure and its commitment to au active reforestation movement. This paper examines the contribution that the fast-growing species, Leucaena leucocephala, can make in this effort. A simple statistical model was used to determine the soil and climatic factors that affect its growth; these results are then compared with existing conditions in Kenya. Estimated coefficients for growth and estimated output prices were used to derive a function relating the present value of net revenue to rotation length. It is demonstrated that the economically optimal rotation is just...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; Research Methods/ Statistical Methods.
Ano: 1991
URL: http://purl.umn.edu/6854

Asymmetric demand responses: a demand system approach
Provedor de dados: 31
Autores: Brown,   Mark G.; Lee,   Jonq-Ying.
Asymmetry is introduced into the Rotterdam model by allowing the income response to depend on whether real income increases or decreases.  Price responses, in turn, are asymmetric through the general and specific substitution terms.  Analysis of data on food and three other broadly defined goods suggests presence of asymmetry.
Tipo: Report
Palavras-chave: Asymmetric demand response; Rotterdam model; Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/52719

THE MINNESOTA RURAL REAL ESTATE MARKET IN 1990... INCLUDING SPECIAL STUDIES OF: ECONOMIC DEVELOPMENT REGIONS, THE GREATER TWIN CITIES METROPOLITAN AREA, THE RED RIVER VALLEY, SOUTHWESTERN MINNESOTA, DAIRY REGION
Provedor de dados: 31
Autores: Wesemann,   Kelly; Raup,   Philip M.
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 1991
URL: http://purl.umn.edu/13031

Charging For Agricultural Extension Services
Provedor de dados: 31
Autores: Hone,   Phillip.
The implications of recent trends in the delivery and financing of agricultural extension services are assessed. The economic consequences of the introduction of charges and the increased reliance on private consultants to deliver extension services are considered in terms of their efficiency and distributional consequences. It is concluded that there is a strong efficiency case for charging for most extension activities. The presence of externalities or non-rival consumption properties in some extension activities does not establish that subsidised provision would be justified from an efficiency perspective. The impact of the price elasticities of demand for extension services and rural output on the distributional consequences of alternative funding...
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1991
URL: http://purl.umn.edu/12386

El sector agricola peruano y sus interrelaciones con el entorno macroeconomico: un modelo econometrico
Provedor de dados: 31
Autores: Briceno Lira,   Arturo.
Este documento plantea un modelo econométrico que permite cuantificar y simular el impacto de las políticas macroeconómicas sobre el desempeño agrícola de los principales cultivos de la agricultura nacional, clasificados en importables (trigo, arroz y maíz amarillo duro), exportables (café, algodón y azúcar) y no transables (papa). Una de las principales características del modelo es el uso de especificaciones econométricas dinámicas basadas en modelos de corrección de error para variables cointegradas.
Tipo: Working or Discussion Paper
Palavras-chave: Sector agropecuario; Modelos econometricos; Agricultural sector; Econometric models; Peru; Agricultural and Food Policy; Research Methods/ Statistical Methods; Q10; C50.
Ano: 1991
URL: http://purl.umn.edu/42260

THE EFFECTS OF FIRM SIZE AND PRODUCTION COST LEVELS ON DYNAMICALLY OPTIMAL AFTER-TAX COTTON STORAGE AND HEDGING DECISIONS
Provedor de dados: 31
Autores: Tronstad,   Russell.
Farm size and production costs are varied in a six state variable stochastic dynamic programming model that quantifies monthly hedging, storage, and cash cotton sale decisions for an Alabama cotton producer.  State variables considered are: (1) cash cotton price; (2) basis level; (3) before-tax income level; (4) cotton holdings; (5) futures position; and (6) value of futures position.  Results indicate that when farm size and production cost level differ, marketing decisions diverge the most for cash cotton sales at the end of the tax year and lower range of cash price (less than $.65/lb.), basis (less than- $.05/lb.), and before-tax income (less than $0.00) states.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/30287

An Analysis of Major Farm Characteristics and Farmers' Use of Cooperatives
Provedor de dados: 31
Autores: Wadsworth,   James J.
This paper examines relationships between major farm characteristics and U.S. farmers’ use of cooperatives in 1986. An ordinal measure of co-op use is developed to classify farmers according to their respective use of cooperatives for marketing farm products or purchasing farm inputs. Logit regression analysis is then used to examine major farm characteristics relative to farmers’ co-op use. Statistically significant relationships were found between co-op use and various farm type, size, and location groupings. No statistically significant relationship was found between co-op use and farm operator age.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1991
URL: http://purl.umn.edu/46259

Retail Trade Area Analysis Bowman North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
This report is intended to provide an indepth trade area analysis of Bowman, North Dakota. Specific analyses included determining Bowman's main and greater trade areas, identifying the demographic profile of Bowman shoppers, examining important and less important services for patron shoppers of Bowman, identifying neighboring cities that area shoppers patronize, determining distances area shoppers traveled to Bowman, and listing popular newspapers and radio stations among area residents. Current trade area information for Bowman was obtained from a statewide trade area survey conducted by the Department of Agricultural Economics at North Dakota State University in 1989. Recent trends (1980 to 1989) in Bowman population, retail sales, per capita income,...
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Farm Management.
Ano: 1991
URL: http://purl.umn.edu/51312

WHEN IS EXPENDITURE "EXOGENOUS" IN SEPARABLE DEMAND MODELS?
Provedor de dados: 31
Autores: LaFrance,   Jeffrey T.
The separability hypothesis and expenditure as an exogenous variable in a system of conditional demands are analyzed. Expenditure cannot be weakly exogenous in a system of conditional demands specified as functions of the prices of the separable goods and total expenditure on those goods. Furthermore, expenditure is uncorrelated with the residuals of the conditional demand equations only when severe restrictions are satisfied. Therefore, expenditure will seldom be strictly exogenous. Econometric methods are presented for the consistent and efficient estimation of the unknown parameters when expenditures is correlated with the residuals and when it is not.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/32621

HEDONIC PRICE ESTIMATION FOR KANSAS WHEAT CHARACTERISTICS
Provedor de dados: 31
Autores: Espinosa,   Juan Andres; Goodwin,   Barry K.
A hedonic price model is applied to a cross-sectional time-series data set of Kansas wheat characteristics. Results indicate that prices received by wheat producers reflect the presence of conventional quality characteristics of wheat and also milling and dough characteristics. Furthermore, the results indicate that the alternative sets of characteristics exhibit quality information that is, to some degree, independent of one another. Important conclusions regarding the efficiency of current grading and pricing practices for wheat are drawn from this analysis.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1991
URL: http://purl.umn.edu/32620

Annotated Bibliography of Generic Commodity Promotion Research (Revised)
Provedor de dados: 31
Autores: Hurst,   Susan J.; Forker,   Olan D.
Tipo: Working Paper
Palavras-chave: Marketing.
Ano: 1991
URL: http://purl.umn.edu/123107

A Simple Measure for Agricultural Trade Distortion
Provedor de dados: 31
Autores: Roningen,   Vernon O.; Dixit,   Praveen M.
A simple measure is proposed that estimates the volume of trade distortion caused by the agricultural policies of trading countries. The index, called a TDS (Trade Distorted by support), would be useful for trade analysts to compare the trade impact of agricultural support policies across countries and commodities. The TDS index can be calculated largely from existing information on agricultural support. A TDS index might also be used to assess damages in trade dispute settlement cases.
Tipo: Working or Discussion Paper
Palavras-chave: Indicators; Producer subsidy equivalent; Trade distortion; Trade models; Trade negotiations; Trade policy; GATT; International Relations/Trade.
Ano: 1991
URL: http://purl.umn.edu/51137

INVESTING IN GRAIN STORAGE FACILITIES UNDER FLUCTUATING PRODUCTION
Provedor de dados: 31
Autores: Brennan,   Donna C.; Lindner,   Robert K.
Fluctuating annual harvest volumes create a peak load problem in the provision of grain storage capacity. There are a number of technologies for handling and storing grain, ranging from capital intensive to labour intensive methods. Optimal provision of grain storage capacity can therefore be analysed in the framework of the conventional peak load pricing model. An investment model of grain storage is outlined and the optimal technology choices are determined according to simple investment roles. Capacity of the more capital intensive storage types should be only provided if the extra capital cost is justified by the saving in operating costs, which depends on the expected utilisation of storage. Some level of supply failure is justifiable. An examination...
Tipo: Journal Article
Palavras-chave: Crop Production/Industries; Production Economics.
Ano: 1991
URL: http://purl.umn.edu/22763

Effects of Housing Costs and Home Sales on Local Government Revenues and Services
Provedor de dados: 31
Autores: Allee,   David J.
The subtitle of this paper should be " How recession and federal devolution have caused local governments to cut services and raise property taxes --now, what should be done in response to the resulting clamor for local government consolidation?" Housing drives local government services. Home sales represent opportunities for more income and more costs. Intergovernmental competition for tax base and the role of state and federal aid to provide equity between jurisdictions are central to the quality of the results. Recent cuts in sales taxes, plus reductions in state and federal assistance are transmitted to the voters through increases in the property tax. This has produced a reaction -consolidate! But that is advice urged and largely ignored since Woodrow...
Tipo: Working Paper
Palavras-chave: Community/Rural/Urban Development.
Ano: 1991
URL: http://purl.umn.edu/121489

FRONT COVER
Provedor de dados: 31
Tipo: Journal Article
Ano: 1991
URL: http://purl.umn.edu/22926

TARGETING AND MODELING APPROACHES IN THE U.S. AND ITALY
Provedor de dados: 31
Second Annual Conference on Agricultural Policy and the Environment; Proceedings of a Conference Sponsored by University of Minnesota, Center for International Food and Agricultural Policy; Agricultural Development Regional Agency (ESAV); University of Padova; Lake Itasca, Minnesota, September 22-29, 1990, Volume II  Contents:  The Benefits of Groundwater Pollution Avoidance: A Case Study in Southeastern Minnesota, by David A. Pottebaum and John J. Waelti  Modeling Farm-Level Interactions Between Policy and Sustainable Agricultural Practices, by Kent D. Olson  Target Classification as a Way of Directing Agricultural-Environmental Policy, by Giorgio Franceschetti and Tiziano Tempesta  Criteria for Identifying and Classifying Areas Vulnerable to Agricultural...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/13947

Measuring Hicksian Welfare Changes from Marshallian Demand Functions
Provedor de dados: 31
Autores: Dumagan,   Jesus C.; Mount,   Timothy D.
A problem persists in measuring the welfare effects of simultaneous price and income changes because the Hicksian compensating variation (CV) and equivalent variation (EV), while unique, are based on unobservable (Hicksian) demand functions, and observable (Marshallian) demand functions do not necessarily yield a unique Marshallian consumer's surplus (CS). This paper proposes a solution by a Taylor series expansion of the expenditure function to approximate CV and EV by way of the Slutsky equation to transform Hicksian price effects into Marshallian price and income effects. The procedure is contrasted with McKenzie's "money metric" (MM) measure derived from a Taylor series expansion of the indirect utility function. MM requires a crucial assumption about...
Tipo: Working Paper
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/123112

QUALITY CHANGES AND LIMITED MARKETING SEASON EFFECTS ON THE DEMAND FOR FRESH BLUEBERRIES
Provedor de dados: 31
Autores: Hoelper,   Antonia L.; Marra,   Michele C.
This study examines the notion that fresh-fruit prices follow a time trend separate from the effect of seasonal supply changes over the marketing season.  In particular, quality changes and a limited marketing season are hypothesized to contribute to the seasonal changes in demand.  The empirical results support these hypotheses for the Boston fresh-blueberry market.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1991
URL: http://purl.umn.edu/29027

REJOINDER: AN APPROACH TO THE ECONOMETRIC ESTIMATION OF ATTITUDES TO RISK IN AGRICULTURE
Provedor de dados: 31
Autores: Bardsley,   Peter; Harris,   Michael.
Tipo: Journal Article
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1991
URL: http://purl.umn.edu/22623

Retail Trade Area Analysis Washburn North Dakota
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry; Wanzek,   Janet K.; Zetocha,   Dale F.; Bastow-Shoop,   Holly E.
This report is intended to provide an indepth trade area analysis of Washburn, North Dakota. Specific analyses included determining Washburn's main and greater trade areas, identifying the demographic profile of Washburn shoppers, examining important and less important services for patron shoppers of Washburn, identifying neighboring cities that area shoppers patronize, determining distances area shoppers traveled to Washburn, and listing popular newspapers and radio stations among area residents. Current trade area information for Washburn was obtained from a statewide trade area survey conducted by the Department of Agricultural Economics at North Dakota State University in 1989. Recent trends (1980 to 1989) in Washburn population, retail sales, per...
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Financial Economics.
Ano: 1991
URL: http://purl.umn.edu/51285

Current Changes in New Zealand Agriculture: A Review
Provedor de dados: 31
Autores: Johnson,   R.W.M.
In the period under review the New Zealand agricultural sector has continued to be sensitive to changes in macroeconomic policies in the economy as a whole. This has not altered with the change of Government in October 1990. The combined forces of low commodity prices, increased costs, and government policy changes brought about a period of readjustment through 1985-86 and 1986-87 which now appears to be completed. Recovery was assisted by favourable terms of trade through 1988-89 and 1989-90. Output from the agricultural sector appears to have stabilised rather than decreased; the downturn in the terms of trade in the 1990-91 season has brought about a further reduction in investment and incomes.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 1991
URL: http://purl.umn.edu/12342

การประมาณค่าประสิทธิภาพการควบคุมการพังทลายของดินในสมการการสูญเสียดินสากลของสวนป่าไม้โตเร็ว อายุ 7 ปี บนชั้นบันไดดิน บริเวณสถานีเกษตรหลวงอ่างขาง เชียงใหม่
Provedor de dados: 106
Autores: Chatree Maknual.
Thesis (M.Sc. in Forestry)
Tipo: PhysicalObject
Palavras-chave: Fast growing tree planted; CP-factor; Terrace; Angkhang highland; ไม้โตเร็ว; การควบคุมการพังทลายของดิน; สมการสูญเสียดินสากล; ขั้นบันไดดิน; สถานีเกษตรหลวงอ่างขาง.
Ano: 1991
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5467

การเพาะเลี้ยงเนื้อเยื่อไผ่ที่มีความสำคัญทางเศรษฐกิจบางชนิด
Provedor de dados: 106
Autores: Kanyaratt Supaibulwattana.
Thesis (M.Sc. in Agriculture)
Tipo: PhysicalObject
Palavras-chave: Bamboos Bambusa multiplex Sweet bamboo Dendrocalamus asper Ma-chu Dendrocalamus latiflorus Lu-chu Bambusa oldhamii Moso-chu Phyllostachys pubescens In vitro culture Tissue culture Economic Young floret Callus 2; 4-D Casein hydrolysate BA NAA ไผ่ ไผ่ตง ไผ่หม่าจู๋ ไผ่ลิ่วจู๋ ไผ่ม่งจงจู๋ การเพาะเลี้ยงเนื้อเยื่อ เศรษฐกิจ ดอกอ่อน แคลลัส ฮอร์โมนพืช เคซีน ไฮโดรไลเซท บีเอ เอ็นเอเอ.
Ano: 1991
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5515

ผลกระทบของไฟป่าต่อแมลงในดิน ณ ดอยอ่างขาง เชียงใหม่
Provedor de dados: 106
Autores: Decha Wiwatwitaya.
Tipo: PhysicalObject
Palavras-chave: Forest fire; Soil insects; แมลงในดิน; ไฟป่า; ความหลากชนิด; ความหนาแน่นของประชากร; ดอยอ่างขาง; จ.เชียงใหม่.
Ano: 1991
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5359

Macrobrachium potiuna (Müller): aspectos do ciclo reprodutivo e sua relação com parâmetros ambientais (Crustacea, Decapoda, Palaemonidae)
Provedor de dados: 104
Autores: Müller,Yara Maria Rauh; Carpes,Simone.
Researches under field conditions were done on the breeding cycle of Macrobrachium potiuna (Müller, 1880), a freshwater shrimp from southern Brazil. It was possible to determine the fecundity and establish its relations with the spawn's weight, the total length and the total weight of ovigerous females.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Macrobrachium; Palaemonidae; Decapoda; Crustacea; Reproductive notes.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751991000100004

Dípteros caliptrados (Muscidae e Anthomyiidae) da região metropolitana do Rio de Janeiro, RJ: II. Atratividade e freqüência sazonal
Provedor de dados: 104
Autores: d'Almeida,José Mario.
Nine thousand, six hundred and ninety-one flies of the family Muscidae (47 species) and Anthomyiidae (2 species) were captured. Flies were collected in three ecologically distinct areas (urban, rural and forest) within the metropolitan region of the city of Rio de Janeiro using as baits decomposing fish, bovine liver, fresh human faeces and mashed banana with sugar. Fish attracted the highest number of flies all over the year. Large number of flies were always collected in the summer and spring but reduced in the winter. Among several species of flies, Atherigona orientalis Schiner, 1868, Musca domestica Linnaeus, 1758 and Synthesiomya nudiseta (Wulp, 1883) were always frequent.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diptera; Muscidae; Anthomyiidae; Atractivity; Sazonality.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751991000100002

Levantamento da fauna entomológica no estado do Paraná: I. Introdução. Situações climática e florística de oito pontos de coleta. Dados faunísticos de agosto de 1986 a julho de 1987
Provedor de dados: 104
Autores: Marinoni,Renato C.; Dutra,Renato R. C.
Eight localities were selected as representative sites to survey the entomofauna of Paraná State, Brazil: 1) Antonina (Sapitanduva); 2) Sao José dos Pinhais (Serra do Mar); 3) Colombo (Embrapa); 4) Ponta Grossa (Vila Velha); 5) Telêmaco Borba (Reserva Biológica Klabin); 6) Jundiaí do Sul (Fazenda Monte Verde); 7) Guarapuava (Santa Clara) and 8) Fênix (Reserva de Vila Rica). Floristic and meteorological conditions in these sites were registered and compared. One Malaise and one light trap were installed in each site. The insects were collected during two years, from August 1986 to July 1988. Only the material obtained during the first year has been sorted at insect order level and analyzed. The quantitative faunistic data were transformed in percentages and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insect survey; Paraná State; Numerical Analysis.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751991000100005

Técnicas de criação e alguns aspectos da biologia de Chrysomya albiceps (Wiedemann) (Diptera, Calliphoridae), em condiçoes de laboraterio
Provedor de dados: 104
Autores: Queiroz,Margareth M. de Carvalho; Milward-de-Azevedo,Eliane M.V.
The colony of C. albiceps (Wiedemann, 1819) was established from larvae and adults colected in the "Estação para Pesquisa Parasitológica W.O. Neitz" area at UFRRJ and Seropedica District, Itaguai, Rio de Janeiro. (Latitude: 22º45'S; Longitude: 43º41'W and Altitude: 33 metres). The biological aspects of this species were studied in climatized chambers regulated at 60±10% RH and 14 hours photophase. The duration and the viability of the larval and pupal stages of C. albiceps was 5,2 and 4,53 days; 95,75% and 94%, respectively. An effect of group was observed on the larvae at the first and second instar. The average weight of mature larvae was around 75 mg, varying between 12,2 to 120 mg. Only mature larvae with average weight higher than 42 mg have...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blowfly; Ontogeny; Life cycle; Rearings methods.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751991000100006

On the taxonomy and distribution of Callinectes Stimpson (Crustacea, Decapoda, Portunidae) in Rio Grande do Norte
Provedor de dados: 104
Autores: Sankarankutty,C.; Freire,A.G.; Santiago,L.C.
A faunistic survey of the species of Callinectes Stimpson, 1871 carried out in the coastal and estuarine regions of the State of Rio Grande do Norte yielded five species: C. bocourti A. Milne Edwards, 1879; C. danae Smith, 1869; C. exasperatus (Gerstaecker, 1856); C. larvatus Ordway, 1863 and C. ornatus Ordway, 1863. Specimens examined consist of those collected on a monthly basis from three fixed stations within the estuary of Potengi, Natal during a period of two years and those obtained from other localities. Among the species occuring in the region, C. danae is more abundant and has a wider range of tolerance of salinity while C. larvatus is restricted to the marine habitat. Though C. danae sustains important artisan fishery, C. bocourti of large size...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Taxonomy; Distribution; Callinectes; Portunidae; Crustacea; Rio Grande do Norte.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751991000100003

Ctenanthidium, gen.n. de Dianthidiini com quatro espécies novas da América do Sul (Hymenoptera, Megachilidae)
Provedor de dados: 104
Autores: Urban,Danúncia.
Ctenanthidium, gen.n. is proposed to include four new neotropical species of Anthidiinae bees, Ctenanthidium gracile, sp.n. from Brazil (Paraná, Curitiba); Ctenanthidium argentinum, sp.n. from Argentina (Córdoba); Ctenanthidium bifasciatum, sp.n. from Uruguai (Colonia, La Estanzuela) and Ctenanthidium nigripes, sp.n. from Bolívia (Potosi, Casa Grande). The males are characterized by the border of the third sternum with an apical comb of strong bristles apically rounded, between lateral fringes.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ctenanthidium; Gen.n Anthidiinae Megachilidae Hymenoptera Taxonomy.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751991000100007

New records for the nematodes Ascaridia columbae (Gmelin) Travassos, Acuaria mayori Lent, Freitas &amp;amp; Proença and Aproctella stoddardi Cram in Brazilian birds, with redescription of the species
Provedor de dados: 104
Autores: Pinto,R. Magalhães; Vicente,J. Júlio; Noronha,Dely; de Fábio,Sueli P.
The species Ascaridia columbae (Gmelin, 1790) Travassos, 1913, Acuaria mayori Lent, Freitas &amp;amp; Proença, 1945 and Aproctella stoddardi Cram, 1931, are redescribed and referred in new hosts. Acuaria mayori is reported for the first time in Brazil and Ap. stoddardi in South America. Ascaridia columbae is properly figured for the first time in Brazil.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nematoda; Endoparasites; Brazilian birds.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751991000100001

Tabanidae (Diptera) da Ilha de Maracá e Serra Pacaraima, Roraima, Brasil, com descrição de duas espécies novas.
Provedor de dados: 36
Autores: Rafael,J. A.; Gorayeb,I. S.; Rosa,M. S. S.; Henriques,A. L.
43 espécies e 3 "variedades" (sensu Fairchild) de mutucas (Diptera: Tabanidae) foram coletadas na Ilha de Maracá e na Serra de Pacaraima, Roraima, Brasil, fronteira com a Venezuela. Fidena schildi (Hine). Esenbeckia prasiniventris (Macquart) e Tabanus unimacula (Kroeber) são registradas pela primeira vez no Brasil e duas espécies novas são descritas: Catachlorops bindai e Stypomnisa vidali. O macho de Tabanus sannio Fairchild é descrito. Alguns dados ecológicos são apresentados.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100351

Ectoparasitos de pequenos mamíferos da Ilha de Maracá, Roraima, Brasil. II. interação entre ectoparasitos e hospedeiros.
Provedor de dados: 36
Autores: Linardi,Pedro Marcos; Botelho,José Ramiro; Rafael,José Albertino.
Indices globais pulicidianos, anoplurianos, malofagianos e acarianos foram determinados em mamiferos capturados na Ilha de Manacá, Roraima, Brasil, no periodo de, novembro de 1987 a fevereiro de 1989.Tendo-se em vista os valores limites ou criticas atri-buidos aos indices pulicidianos, propostos como medida complementar de vigilância epide-miológica para peste, alguns, roedores silvestres poderiam ter estado expostos a esta in-fecção. O indice global foi de 11,5e a pulga prevalente foi Polygznis klagesi klagesiobservado na estação seca. Os números máximos de ectoparasitas por hospedeiros foram: 244 para Prorchimys guyannensis, 193para Prorchimyssp. e 108 para Bolomys sp. As espéciescom indices de infestação mais elevados fonam P. klagesi klagesiem...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100141

Geomorphology and land development in the Maraca area of northern Roraima, Brazil.
Provedor de dados: 36
Autores: McGregor,Duncan F. M.; Eden,Michael J.
The geomorphological materials and forms of the Maraca area of Roraima, Brazil are described, an their sgnificance for land development examined. Significant contrasts are noted in areas presently under rainforest and savanna vegetation. Lateritic gravels and extensive shetwash accumulations in savanna areas constrast with incipient or absent plinthite development, few gravels and limited evidence of colluvium under rainforest. Terrain is in general relatively highly-dissected. Slope profiles are characterised, particularly within the savanna zone, by a relatively steep lower concavity. These contrasts are sharply-demarcated by the present savanna/rainforest bondary, unexpectedly in view of the generally accepted hypothesis of repeated contraction an...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100391

Térmites (Insecta: Isoptera) consumidores de liteira na Ilha de Maracá, Roraima.
Provedor de dados: 36
Autores: Bandeira,Adelmar Gomes.
Um estudo dos térmites consumidores de liteira de na Ilha de Maracá , Roraima, reve-lou sete. espécies : Ruptiermesreconditus R. silvestrii, Ruptiermessp.n., Syntermes chaguimayensis,S. moestus, S.parallelus,e Nasutitermes guayanae. O diâmetro médio dos cortes cirulares nas folhas foi de. 3,0 mm para S. molestus3,5 mm paia S. paral-lelus,5,5 mm para S. chaguimayesise de aproximadamente. 7 mm {quando circulares) para as, espécies de Ruptoermes e. N. guayanae,.Encontrou-se maior atividade. detritívora, principatmente do. Ruptitermes, em mata primária comparada com clareiras Os térmites consumidores de, liteira em Maracá aparentaram ter papel fundamental na remoção e incorporação da liteira fina ao solo, embora não tenha tido calculada experimentalmente a...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100015

Muscidae, Fanniidae e Calliphoridae (Diptera) do Projeto Maracá, Roraima, Brasil.
Provedor de dados: 36
Autores: Carvalho,Cláudio José Barros de; Couri,Márcia Souto.
A survey of muscoid flies from Μaracá is. and Pacaraima, Roraima, Brazil, was made. 23 muscid, six fanniid and nine calliphorid species were colected. The known geographic distributíon of these, species was also added.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100035

Pipunculidae (Diptera) da Estação Ecológica de Maracá e da localidade de Pacaraima, Roraima, Brasil.
Provedor de dados: 36
Autores: Rafael,J. A.; Rosa,M. S. S.
As espécies de pipunculidae da Estação Ecológica de Maracá e de Pacaraima, Brasil, são registradas. Dezesseis espécies foram identificadas ao nível específico; dessas, dez são novas à ciência, mas apenas cinco são descritas neste trabalho: Amazunculus claripennis, Cephalosphaera pacaraima, C. semispiralis, Elmohardyia praecipuae E. raraimensis.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100337

Taeniapterinae (Diptera, Micropezidae) da Ilha de Maracã e da localidade de Pacaraima, Roraima, Brasil.
Provedor de dados: 36
Autores: Albuquerque,Lindalva Paes de.
Composição taxonômica dos Taeniapteninae da Ilha de MARACÃ, Estação Ecológica da Secretania Especial do Meio Ambiente (SEMA) e da localidade de Pacaraima, Roraima, Bra-sil, foi examinada, atingindo 29 espécies identificadas ao nível especifica. dessas espécies, 15 pertencem a quatro gêneros de Taeniaptenini. e 14 a três gêneros de Gralli-pezini e outras identificadas apenas a nível, de gêneio. A oconnência dessas espécies é peta primeira vez citada para Roraima e a sua distribuição ampliada pana a Amazónia.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100003

Levantamento preliminar de Sepsidae (Diptera, Schizophora) em Roraima, Projeto Maracá, com descrição de uma espécie nova.
Provedor de dados: 36
Autores: Silva,Vera Cristina.
Foram estudadas 231 espécimens de Sepsidae (Diptera, Schzophora), coletados em Roraima pela equipe do Projeto Maracã. É fornecida uma listam das espécies encontradas. Palaeosepsis erythromyrma, sp. n. é descrita; são incluídos desenhos da cabeça, asa, pernas e genitália do macho dessa espécie.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100369

Pseudoscorpiões foréticos de Stenodontes spinibarbis (Lin., 1758) (Coleoptera) e redescrição de Lechytia chthoniiformis (Balzan, 1890) (Pseudoscorpiones, Chthoniidae) da Ilha de Maracá - Roraima.
Provedor de dados: 36
Autores: Aguiar,Nair Otaviano; Bührnheim,Paulo F.
Em excursão à ilha de Maracã, Estação Ecológica da Secretaria Especial do Meio Ambiente, Roraima, Brasil, de 16 a 22/3/1988, foram coletados com isca luminosa (luz mista de mercúrio), seis exemplares de Stenodontes spinibarbis (Lin., 1758). Quatro desses coléopteros carregavam Pseudoscorpiões de três espécies: Lechutia chthoniiformis (Balzan, 1980), Neocheiridium carticum (Balzan,1890) e Lustrochernes intermedius (Balzan, 1891). As duas primeiras espécies são assinaladas agora na Amazônia e pela primeira vez em forésia. A última, já registrada para a região Amazônica, ainda não tinha sido encontrada em forésia. Fornecem-se dados sobre estes exemplares e redescreve-se Lechytia chthoniiformis.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100425

Insetos coletados durante o Projeto Maracá, Roraima, Brasil: Lista complementar.
Provedor de dados: 36
Autores: Rafael,J. A.
Uma lista da isentos coletados durante o projeto Marscá é apresentada. Os seguintes táxons são listados: Neuroptera (Corydalidae, Mantispidae, Ascalaphidade, Coniopterygidae, Sisyridade, Myrmeleontidae e a Chrysopidae); Coleoptera (Cerambycidae) e Diptora (Stratymyiidae, Asilidade, Bombyliidae, Dolichopodidae., Neriidae, Tephritidae., Milichiidae, Chloropidae, Otitidae, Richardiidae., Platystomatidae, Ropalomeridae, lo chaeidae e Clusiidae). Apresenta-se também uma Lista da Orthoptera: Acridoidea (Romaleidae e Acrididae) identificados em 1983.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100325

Sobre a esfingofauna da Ilha de Maracá e da Serra de Pacaraima, Roraima (Lepidoptera, Sphingidae)
Provedor de dados: 36
Autores: Motta,Catarina da Silva; Ferreira,Ruth Leila M.; Aguiar,Nair O.
São listadas as espécies de esfingídeos coletadas na Ilha de Maracã e na Serra de Pacaraima, em Roraima.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100319

Brasilian Therevidae (diptera): a checklist and discriptions of species.
Provedor de dados: 36
Autores: Irwin,Michael E.; Webb,Donald W.
95 Specimens representing 12 Species in 5 genera form the basis of this paper. 6 new Species are described, namely: Henicomyia amazonica, n. sp. (Bnazil: Amazonas) , Brachylinga xanthoperra, n. sp. (Brazil:Roraima), Cyclotelus badicrusus, n. sp. (Brazil-.Amazonas; Ecuador: Pichinca), C. silacrusus, n. sp. (Brazil-.São Paulo), Penniverpa alvadusta. n. sp. (Brazil-.Amazonas) and P. alvatra, n. sp. (Brazil-.Roraima) . A check-list of Braziliam Therevidae, based on literature accounts and examined matenial, is ALSO provided. It lists 22 Species in 7 genera, one not formally described. New combinations, and new synonyms ore proposed.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100085

Espécies de Cicadellinae, Deltocephalinae (Homoptera, Cicadellidae) da Ilha de Maracá, Roraima.
Provedor de dados: 36
Autores: Cavichioli,Rodney R.; Zanol,Keti M. R.
The species of Cicadellidae, Cicadellinae and Deltocephalinae (Homoptera, Cicadel lidae) collected in Ilha de Maracá, Roraima, Bruzil are listed.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100055

Studies of neotropical Caddisflies, XLIV: on a collection from Ilha de Maraca, Brazil.
Provedor de dados: 36
Autores: Flint Jr,Oliver S.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100063

New species and records of Psocoptera (Insecta) from Roraima State, Brazil.
Provedor de dados: 36
Autores: Mockford,Edward L.
Psocoptera. from Ilha de Marcica and Pacaraima, Roraima State, Brazil, representing 103 species are recorded. Sixty-two are new to science. and are described and figured, representing genera Echmepteryx(2), Tapinella(3), Musapsocus, (1), Seopsocus(3),Isth-mopsocis(3), Dolabellopsocus(6), Epipsocus(5), Neurostigma.(1), Nctiopscus(1), Cae-cilius (6) , Enderluinella (1), Xanthocarcilius(1) , Polypsocus(3) , Scytopsocus(1), ar-chipsocus(1), Lachesilla(4), Notolachesilla(1) , Perispsocus(4), Dactylopsocus (1) , Metylophorus(3), Blaste.(4), Lichenomiae(3), Myopsocus (3). Genus Notarchispsu. gen. is erected for Archipsocus macrurusNew and a new species. Genus MonocladellusEu-derlein in placed in synonymy of, PolypsocusHagen. South American species assigned to...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100211

Lepidoptera: Papilionoidea e Hesperioidea coletados na Ilha de Maracá, Alto Alegre, Roraima, parte do Projeto Maracá, com uma lista complementar de Hesperiidae De Roraima
Provedor de dados: 36
Autores: Mielke,Olaf H. H.; Casagrande,Mirna M.
Como parte do Projeto Maracá, foram efetuadas quatro coletas da Lepidopterofauna (Rhopalocera) da Ilha de Maracá, RR.Foram coletados 2724 exemplares de 453 espécies distribuídas nas seguintes família e subfamilias:PapilionidaePapilionidae - 8 espéciesPieridaePierinae - 4 espéciesColidinae - 8 espéciesDismorphinae - 1 espécieNymphalidaeIthomiidae - 9 espéciesDanainae - 2 espéciesSatyrinae - 37 espéciesBrassolinae - 12 espéciesMorphinae - 2 espéciesNymphalinae - 56 espéciesApaturinae - 2 espéciesCharaxinae - 18 espéciesLibytheidae - 1 espécieLycaenidaeRiodininae - 68 espéciesLycaeninae - 47 espéciesHesperiidaePyrrhopyginae - 4 espéciesPyrginae - 85 espéciesHesperiinae - 94espéciesPythonidae maraca sp. n., Vidius nostra roraimae ssp. n. são descritas. Papias...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100175

Lista dos Mantódeos coletados na Ilha de Maracá.
Provedor de dados: 36
Autores: Jantsch,Lauro José.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100123

Sarcophagidae (Diptera) de Roraima, Brasil.
Provedor de dados: 36
Autores: Lopes,Hugo de Souza; Tibana,Rita.
This is a list of the Sarcophagidae flies collect in the Maracá Island, Uraricoera river, Roraima, Brasil.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100151

Contribuição ao conhecimento dos Odonatos da Estação Ecológica de Maracá - Roraima.
Provedor de dados: 36
Autores: Machado,Ângelo B. M.; Mesquita,Hugo G.; Machado,Paulo Augusto R.
Estudou-se a fauna odonatológica da Estação Ecológica de Maracá, no Estado de Roraima, com base em material coletado nas matas e campos de sua parte oriental. Foram coletadas 61 espécies das quais 3 são novas para a ciência (Epipleoneura, Leptobasisa. Lestes) e serão descritas em outro trabalho e 8 constituem novos registros para a fauna brasileira (Aeolagrion demerarum, Argia pulla, Hetaerina mortua, Hetaerina westfalli, Meta leptobasis manicaria., Neoneura denticulata, Neoneura gaida, Protoneura amatoria). Verificou-se que as espécies de grande distribuição geográfica, geralmente mais comuns, pre-dominam nas áreas de savana, enquanto nas matas predominam as de distribuição geográfica mats restrita. Os resultados ressaltam a grande semelhança que existe...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100159

Passalideos (Coleoptera) da Ilha de Maracá, Roraima.
Provedor de dados: 36
Autores: Bührnheim,Paulo F.; Aguiar,Nair Otaviano.
Foram realizados duas excursões à Ilha de Maracá, Estação Ecológica da Secretaria Especial do Meio Ambiemte, em Roraima, Brasil, uma durante a estação chuvosa, no periodo de 03 a 13.v.1987 e a outra na estação seca de 23 a 30.xi.1987. Na primeira. foram colecionadas quatro espécies de Passalideoes (Coleoptera): PassalusglaberrimusEschsch., 1829; Passalus interruptus(Lin., 1758); Passalus interstitialisEschsch., 1829 e Verres furcilabris (Eschsch., 1829). Na segunda oportunidade, além das espécies, encontradas na primeira, foi colecionada mais uma, Paxillussp. Dados sobre a bionomia destas espéci-es, obtidos, durante os dois colecionamentos, são fornecidos e discutidos.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100025

Flebotomíneos (Diptera: Psychodidae) no Estado de Roraima, Brasil. II. Espécies coletadas na Região Norte.
Provedor de dados: 36
Autores: Castellón,E. G.; Araújo Filho,N. A.; Fé,N. F.; Alves,J. M. C.
Neste trabalho são reportadas pela primeira vez, as espécies de flebotomíneos acha dos no norte do Estado de Roraima, Brasil; coletadas com armadilhas CDC e Malaise. São reportadas vinte, e oito espécies na região elevando o total para cinquenta e seis conhe cidas para o Estado.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100045

Flebotomíneos (Diptera: Psychodidae) no Estado de Roraima. III. Listagem das espécies no Estado.
Provedor de dados: 36
Autores: Castellón,Ε. G.; Araújo Filho,N. A.; Fé,N. F.; Alves,J. M. C.
Are relationed the species of sand flies collected in the State of Roraima, Βrasil.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100051

Soil physical and Chemical properties of cultivated pasture on forest land, Roraima, Brazil .
Provedor de dados: 36
Autores: Eden,Michael J.; McGregor,Duncan F. M.; Vieira,Nelson A. Q.
Soil conditions under pasture were examined in a range of sites representing the sequence of conversion of forest to pasture at two locations in the vicinity of Ilha de Maracã, Roraima. Comparisons were made with adjacent savana. Soil bulk densities shown to increase after forest clearance and soil chemical data indicate that the initial beneficial effects on nutrient supply of burning forest debris are rather short-lived. Very low levels of available phosphorus prevail in areas of savanna and cultivated pasture of all ages. Variations in the status of older cultivated pastures are mainly attributable to different grazing levelt.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100375

Ectoparasitos de pequenos mamíferos da Ilha de Maracá, Roraima, Brasil. I. Ectoparasitofauna, registros geográficos e de hospedeiros.
Provedor de dados: 36
Autores: Linardi,Pedro Marcos; Botelho,José Ramiro; Rafael,José Albertíno; Valle,Célio Murilo Carvalho; Cunha,Aléxia da; Machado,Paulo Augusto Ribeiro.
Um levantamento de ectoparasitos de pequenos mamiferos foi realizado na ilha de Ma-racá, Roraima, Bnasil, durante três distintos periodos entre novembro de 1987 a fevereiro de 1989, tendo sido colecionados 1. 774 exemplares retirados de 51 roedores e 3 marsupiais. Os números e a distribuição por sexo das espécies de ectoparasitos encontrados são apresentados. Novos registros de hospedeiros são dados pana Androlaelaps fahrenhol zi, Gigantolaelaps goyanensis, Laelaps flexa, Laelaps paulistanensise Tur aymara.Todas as espécies de ectoparasiZos são registradas pela primeira vez no Estado de Rorai ma. Excetuando-se Amblyomma.sp., Cummingsiasp., Hoplopleura splendida, Polygenis kla-gesi klagesi, Polygenis klagesi samuelise Rhopalopsyllus australisssp. as demais...
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100131

Os solos da reserva Ecológica de Maracá, Roraima: Segunda aproximação.
Provedor de dados: 36
Autores: Robison,Daniel M.; Nortcliff,Stephen.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671991000100409

Cactaceae do Vale do Rio Jequitinhonha (Minas Gerais)
Provedor de dados: 39
Autores: Taylor,Nigel P; Zappi,Daniela C.
Durante as primeiras coletas relacionadas ao Projeto "Cactaceae no Brasil Oriental", ficou provada a grande diversidade de espércies dessa família na região do vale médio do Rio Jequitinhonha, tendo sido visitadas as localidades de Itinga, Itaobim e Pedra Azul. Foram coletadas 21 espécies distribuídas entre os gêneros Pereskia, Opuntia, Tacinga, Pseudoacanthocereus, Arrojadoa, Brasilicereus, Cereus, Coleocephalocereus, Melocactus, Pilosocereus e Selenicereus, representando as três subfamílias de Cactaceae, cujas afinidades taxonômicas e padrões de distribuição geográfica são discutidos a seguir.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cactaceae; Floristica; Distribuição geográfica; Minas Gerais.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061991000100005

Flórula ruderal da cidade de Lavras, MG
Provedor de dados: 39
Autores: Gavilanes,Manuel Losada; D'Angieri Filho,Cláudio Ney.
Efetuou-se o levantamento e a identificação das plantas ruderais ocorrentes na cidade de Lavras, MG. Foram identificadas 175 espécies, representando 122 gêneros, pertencentes a 41 famílias. As famílias. Compositae, Leguminosae, Graminese, Malvaceae, Convolvulaceae, Cyperaceae, Euphorbiaceae e Amaranthaceae, são as que apresentaram o maior número de espécies. O material foi coletado em áreas ajardinadas, beiras de caminhos, calçadas, muros e cercas, e em terrenos baldios.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plantas ruderais; Invasoras; Lavras; Minas Gerais.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061991000200005

Líquens de Piraputanga, Mato Grosso do Sul, Brasil
Provedor de dados: 39
Autores: Fleig,Mariana; Riquelme,Ivone.
Foram identificadas 72 espécies de liquens coletados em Piraputanga, município de Aquidauana; 23 taxa são registradas pela primeira vez para o estado do Mato Grosso do Sul.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Liquens; Floristica.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061991000100001

Universidade de São Paulo - USP
Provedor de dados: 39
Tipo: Info:eu-repo/semantics/other
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061991000100007

Plantas do Brasil: angiospermas do estado de Mato Grosso - Pantanal
Provedor de dados: 39
Autores: Guarim Neto,Germano.
São apresentadas 111 espécies de angiospermas da Flora do Pantanal mato-grossense, distribuídas em 54 famílias. Estas espécies ocorrem em diferentes formações vegetacionais do Pantanal, desde aquelas de áreas alagadas (permanentes e temporárias) até as não alagadas (matas semidecíduas e ilhas de cerrado). São enfocados aspectos do seu potencial econômico e interações ecológicas.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flora; Pantanal; Angiospermas; Mato Grosso.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061991000100003

Universidade Federal de Pernambuco - UFPE
Provedor de dados: 39
Tipo: Info:eu-repo/semantics/other
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061991000200008

Universidade Federal Rural de Pernambuco - UFRPE
Provedor de dados: 39
Tipo: Info:eu-repo/semantics/other
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061991000200011

Hyphomycetes decompositores 4: espécies associadas às raízes de Ctenanthe oppenheimiana Sond
Provedor de dados: 39
Autores: Grandi,Rosely Ana Piccolo.
Raízes em decomposição de Ctenanthe oppenheimiana Sond., representante da família Marantaceae, cultivada na Seção de Ornamentais do Instituto de Botânica, SP, Brasil, foram estudadas quanto à presença de Hyphomycetes. As raízes foram coletadas mensalmente, de janeiro de 1986 a dezembro de 1987 e após aplicação da técnica de lavagem vigorosa, deixadas em câmara úmida por dois meses. Os seguintes táxons foram constatados: Acremonium sp., Dictyochaeta fertilis Hughes &amp;amp; Kendrick, Humicola grisea Traaen, Phialocephala fusca Kendrick, Pithomyces chartarum (Berk. &amp;amp; Curt.) M. B. Ellis, Rhinocladiella phaeophora Veerkamp &amp;amp; W. Gams, Sporidesmiella hyalosperma (Corda) P. M. Kirk var. hyalosperma P. M. Kirk e Tetraploa aristata berkeley...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hyphomycetes; Taxonomia; Decomposição; Ctenanthe oppenheimiana Sond.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061991000100002

O gênero Rhipsalis Gärtner (Cactaceae), no Estado de São Paulo I: espécies com ramos cilíndricos ou subcilíndricos
Provedor de dados: 39
Autores: Lombardi,Julio Antonio.
Rhipsalis Gärtner é um gênero de Cactaceae de hábito epífita ou rupícola, de ampla distribuição nas Américas do Sul e Central, atingindo inclusive a África tropical e ilhas do Oceano Índico. Este trabalho procurou caracterizar morfologicamente as espécies do gênero Rhipsalis que ocorrem no Estado de São Paulo, possibilitando deste modo o reconhecimento das espécies. Entre as espécies do gênero que possuem artículos cilíndricos e subcilíndricos foram reconhecidas 16 espécies ocorrentes no Estado de São Paulo, incluindo uma espécie nova, R. spinescens Lombardi, além de uma espécie de determinação incerta.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rhipsalis; Taxonomia; Ramos cilíndricos e subcilíndricos.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061991000200004

Aspectos anatômicos e adaptativos das partes vegetativas de Spartina densiflora Brong. (Gramineae) da marisma do estuário da Lagoa dos Patos-RS
Provedor de dados: 39
Autores: Perazzolo,Mara; Pinheiro,Fátima.
Spartina densiflora Brong. é uma gramínea típica das marismas doestuário da lagoa dos Patos, Rio Grande do Sul, Brasil. A espécie apresenta adaptações morfoanatômicas em relação à salinidade, inundação e condições anaeróbicas que caracterizam este ambiente estressante. As adaptações xeromórficas e halofíticas desta espécie são a presença de estômatos protegidos por papilas; alta lignificação nas folhas, rizoma e raízes; enrolamento foliar e glândulas secretoras de sal. Como adaptação à sobrevivência ao solo anaeróbico, a espécie apresenta espaços intercelulares nas folhas, rizoma e raízes.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spartina densiflora; Anatomia; Anaerobiose; Halófita; Xerófita.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061991000200001

Universidade Federal do Paraná- UFPR
Provedor de dados: 39
Tipo: Info:eu-repo/semantics/other
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061991000200007

Citogenética de angiospermas coletadas em Pernambuco: IV
Provedor de dados: 39
Autores: Carvalheira,Gianna Maria Griz; Guerra,Marcelo; Santos,Glauco Amaro dos; Andrade,Valmar Correia de; Farias,Mônica Cristina Alcantara de.
Neste trabalho são apresentados os números cromossômicos observados em 22 espécies pertencentes a 19 gêneros de angiospermas coletadas em Pernambuco. Os dados principais foram resumidos em uma tabela incluindo referências de herbário, locais de coleta, números diplóides e determinações cromossômicas prévias. Para oito espécies não encontramos nenhuma referência anterior na literatura específica. Por outro lado, alguns autores têm relatado números cromossômicos diferentes para uma mesma espécie. Nossas observações sugerem que essas discordâncias, em geral, podem ser atribuídas à ocorrência, nessas espécies, de cromossomos satelitados com constrições secundárias elásticas. Características citogenéticas especiais, observadas em algumas espécies, são também...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Números cromossômicos; Angiospermae.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061991000200003

Universidade Federal do Rio Grande do Sul - UFRGS
Provedor de dados: 39
Tipo: Info:eu-repo/semantics/other
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061991000200010

Instituto Nacional de Pesquisas da Amazônia - INPA
Provedor de dados: 39
Tipo: Info:eu-repo/semantics/other
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061991000200006

Universidade Federal de Pernambuco - UFPE
Provedor de dados: 39
Tipo: Info:eu-repo/semantics/other
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061991000100006

"Errata"
Provedor de dados: 39
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061991000200012

Universidade Federal de Pernambuco - UFPE
Provedor de dados: 39
Tipo: Info:eu-repo/semantics/other
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061991000200009

Myxomycetes do Canavial I: levantamento florístico em Carpina - Pernambuco
Provedor de dados: 39
Autores: Santos,Eneida Jucene dos; Cavalcanti,Laise de Holanda.
Durante um ano investigou-se a ocorrência, freqüência e constância de Myxomycetes em um canavial da Estação Experimental do PLANALSUCAR, em Carpina-PE. As observações foram efetuadas nos meses de março, junho, setembro e dezembro, correspondentes a diferentes etapas do cultivo da cana-de-açúcar. Numa área de 1.134m2, observou-se um total de 40 touceiras, em cada mês de coletas, examinando-se folhas, colmos e raízes (vivos ou mortos), bem como a superfície do solo. Foram registradas oito espécies, todas pertencentes à subclasse Myxogastromycetidae: Cribraria splendens (Schr.) Pers. (Liceales); Arcyria cinerea (Buli.) Pers., A. deruidata (L.) Wett. e Trichia favoginea (Batsch.) Pers. (Trichiales); Craterirum leucocephalum (Pers.) Ditmar, Physarumnucleatum Ré...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Myxomycetes; Canavial; Liceales; Trichiales; Physarales.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061991000100004

Desenvolvimento de Adiantopsis radiata, Pteris denticulata (Pteridaceae) e Polypodium latipes (Polypodiaceae) em condições naturais
Provedor de dados: 39
Autores: Ranal,Marli A.
Populações de gametófitos e esporófitos àe Adiantopsis radiata (L.) Fée, Pteris denticulata Sw. e Polypodium latipes Langsd. et Fisch, ocorrentes em mata mesofítica semidecídua do Estado de São Paulo, Brasil, foram acompanhadas em campo durante 24 meses e amostras coletadas para estudo em laboratório. A morfologia das diferentes fases de desenvolvimento, desde o gametófito até o esporófito adulto, bem como informações relativas ao comportamento das espécies em função de condições de dessecamento são apresentadas.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Desenvolvimento heteroblástico; Adiantopsis radiata; Pteris denticulata; Polypodium latipes; Pteridaceae; Polypodiaceae.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061991000200002

Ocorrência de aflatoxina em amendoim, no estado de São Paulo, durante os anos de 1988 e 1989
Provedor de dados: 43
Autores: Fonseca,H.; Valarini,I.; Domingues,M.A.C.; Wettstein,A.S.R.; Silva,A.E.G.
Este trabalho teve o escopo de dar a público os resultados das análises efetuadas num total de 625 amostras de amendoim descascado, na sua maioria HPS ("hand pick selected"), durante os anos de 1988 (517) e 1989 (108). Considerando que a legislação brasileira permite um máximo de 30 /¼g/kg, somadas as aflatoxinas B1 e G1, os resultados mostraram que em 1988, 52% das amostras (correspondentes a lotes), estavam contaminadas e em 1989, 34%. Os níveis médios de aflatoxina nas amostras contaminadas foram de 13 3,8 ¼g/kg em 1988 e 414,8 ¼g/kg em 1989, que podem ser considerados elevados. O contingente de lotes utilizáveis pela indústria foi de 67% em 1988 e 76% em 1989 (correspondentes às amostras com níveis não detectáveis e abaixo de 30 ¼g/kg).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amendoim; Aflatoxina; Ocorrência.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761991000100017

Nutrição mineral das hortaliças: LXXXVIII. Extração de nutrientes em alho-porró (Allium porrum)
Provedor de dados: 43
Autores: Minami,Keigo; Haag,Henrique Paulo.
Com a finalidade de estudar a extração de macro e micronutrientes durante o desenvolvimento do alho-porró, em condições de campo, foi feita a coleta de materiais a cada 20 dias, num ciclo total de 170 dias, quando cada planta atingiu o peso de 12,87 g de matéria-seca. Para uma população de 166.667 plantas por ha, a quantidade de nutrientes extraídos foi: N-115,36 kg, P-7,88 kg, K-55,16 kg, Ca-13,14 kg, Mg-7,69 kg, S-7,10 kg, B-38,89g, Cu-17,77 g, Fe-1165,49 g, Mn-52,09 g e Zn-47,15 g.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nutrição mineral; Hortaliças; Alho-porró.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761991000100016

Caracterização preliminar de Amaranthus hybridus L. e Amaranthus viridis L. através de isoenzimas
Provedor de dados: 43
Autores: Maluf,Angela Maria; Martins,Paulo Sodero.
Através da técnica de eletroforese de gel de amido com migração horizontal, pode-se observar que para esterase, apenas o Amaranthus hybridus tipo verde apresentou variação, na forma de presença ou ausência da banda na posição 0.7. Por outro lado, para peroxidase, para todas as espécies e biótipos (A.viridis e A.hybridus tipo verde e tipo roxo) houve variação no padrão de bandas. Através da existência de bandas comuns às duas espécies, pode-se detectar evidências de hibridação e introgressãc entre elas.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eletroforese; Isoenzima; Esterase; Peroxidase; Amaranthus; Hibridação; Introgressão.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761991000100003

Mobilidade de cátions em alteração intempérica de diabásio no município de Rio das Pedras, SP
Provedor de dados: 43
Autores: Marconis,A.
Em uma sequência de alteração intempérica de diabásio, é estudada a mobilidade dos principais cátions, desde a rocha não alterada até o solo de origem. Da rocha primitiva, apenas cerca de 44% de material sólido permanecem na fase final, constituindo a fração detrítica do solo. A eliminação dos cátions solúveis é rápida e ocorre nas primeiras fases da alteração. A sílica, removida mais lentamente, tem cerca de 60% eliminada, permanecendo no solo o alumínio, o ferro e parcialmente o titânio.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diabásio; Intemperização de rochas.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761991000100012

Acumulação de matéria seca, absorção de N, P e K pelo cafeeiro (Coffea arabica L. cv. Catuaí) com dois, tres, quatro e cinco anos de idade, nas fases fenológicas de repouso, granação e maturação vegetando em um latossolo vermelho amarelo, fase cerrado
Provedor de dados: 43
Autores: Cietto,Sergio; Haag,Henrique Paulo; Dechen,Antonio Roque.
Em uma plantação de cafeeiro (Coffea arabica L. cv. Catuaí) com dois, três, quatro e cinco anos de idade no campo, situada em Latossolo Vermelho Amarelo, fase cerrado, na Fazenda Santo Izidro, município de Salto, SP. , determinou-se a acumulação de matéria seca e absorção de N, P e K no caule, ramos, folhas e frutos, durante as fases fenológicas de repouso, granação e maturação. Concluiu-se que: - Constitui exceção o potássio que mostra os valores mais elevados aos cinco anos, para as três épocas; - A maior acumulação de matéria seca, nitrogênio, fósforo, potássio pela parte aérea nos meses de julho, janeiro e junho, ocorre em cafeeiros com cinco anos; - Em janeiro e junho os cafeeiros de cinco anos acumulam as maiores quantidades de matéria seca e...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acúmulo de matéria seca extração de N; P; E K fase de repouso granação maturação latossolo vermelho amarelo.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761991000100014

Absorção de Ca, Mg e S pelo cafeeiro (Coffea arabica L. cv. Catuaí) com dois, três, quatro e cinco anos de idade; nas fases fenológicas de repouso fenológicas de repouso, granação e maturação vegetando em um latossolo vermelho amarelo, fase cerrado
Provedor de dados: 43
Autores: Cietto,S.; Haag,H.P.; Dechen,A.R.
Em uma plantação de cafeeiros (Coffea arábica L. cv. Catuai) com dois, três, quatro e cinco anos de idade no campo situada em Latossolo Vermelho Amarelo, fase cerrado, na Fazenda Santo Izidro, município de Salto,SP. determinou-se a acumulação de Ca, Mg e S no caule, ramos, folhas e frutos durante as fases fenológicas de repouso, granação e maturação. Concluiu-se que: a maior acumulação de Ca pela parte aérea nos meses de julho, janeiro e junho ocorre em cafeeiros com cinco anos; a acumulação de Mg e S varia em função das épocas. O cafeeiro aos cinco anos de campo exporta através da colheita, em função do conteúdo total na planta 26% de Ca, 32% de Mg e 37% de S.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acúmulo de Ca; Mg; S; Fase de repouso; Granação; Maturação; Latossolo vermelho amarelo; Cafeeiro.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761991000100013

Promoção do desenvolvimento de nogueira-macadâmia com reguladores vegetais visando enxertia precoce
Provedor de dados: 43
Autores: Castro,P.R.C.; Penteado,S.R.; Teramoto,E.R.; Demétrio,C.G.B.; Anzai,N.H.
O experimento, realizado no Horto Experimental do Departamento de Botânica da Escola Superior de Agricultura "Luiz de Queiroz", teve por finalidade promover o desenvolvimento precoce de porta-enxertos de Macadamia integrifolia visando abreviar a produção de mudas. As plantas de nogueira-macadâmia com 4 meses de idade (120 D.A.S.) foram pulverizadas com ácido giberélico 50, 100, 250 e 500 ppm, ácido naftalenacético 50, 100, 250 e 500 ppm, ácido giberélico 100 ppm + ácido naftalenacético 100 ppm, além do contro-le. Esses tratamentos foram repetidos aos 181 D.A.S. Determinações periódicas da altura da planta e do diâmetro do caule mostraram que ácido giberélico 500 ppm aplicado 120 D.A.S. promoveu o maior crescimento em altura dos porta-enxertos de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Macadamia integrifolia; Desenvolvimento precoce; Reguladores vegetais.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761991000100009

Transferência de imunidade passiva em equinos: comportamento imunológico do recém nascido
Provedor de dados: 43
Autores: Scotoni,Carla Maria de Meo; Machado Neto,Raul.
O objetivo deste trabalho foi observar o comportamento imunológico de potros recém-nascidos das raças Mangalarga e Anglo-Árabe no que se refere ao processo de aquisição de anticorpos maternos e sua correlação com os níveis de imunoglobulina do colostro. Foram utilizados 7 potros Anglo-Árabe e 6 potros Mangalarga para amostragem de sangue imediatamente após o nascimento (antes de qualquer ingestão de colostro), 24 e 48 horas, 5, 10, 15, 20, 25, 30, 40, 50, 60 e 70 dias após o nascimento, e suas respectivas mães cujo colostro foi amostrado imediatamente após a parição, antes da primeira mamada. A quantificação das imunoglobulinas séricas foi efetuada pelo método do ZST (Zinc Sulfate Turbidity) e para a análise dos resultados foram testados modelos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Imunidade passiva; Potro; Colostro.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761991000100007

Nota do editor
Provedor de dados: 43
Autores: Reichardt,Klaus.
Tipo: Info:eu-repo/semantics/other
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761991000100001

Efeitos da secagem intermitente sobre a qualidade de sementes de milho
Provedor de dados: 43
Autores: Villela,Francisco Amaral; Silva,Walter Rodrigues da.
Objetivando avaliar os efeitos de diferentes temperaturas do ar, na secagem intermitente sobre a qualidade de sementes de milho, do híbrido duplo AG-162, o presente trabalho foi dividido em três estudos, denominados 1, 2 e 3. Cada estudo envolveu três métodos de secagem: secagem natural, secagem artificial-natural e secagem artificial. Nas secagens artificial-natural e artificial dos três estudos foram utilizadas, respectivamente, as temperaturas do ar de 70, 80 e 9 0°C, durante o processo denominado artificial, (secagem intermitente) . As sementes, após a secagem, foram armazenadas por seis meses e seu comportamento avaliado em quatro épocas (0, 60, 120 e 180 dias), através da determinação do teor de água e dos testes de germinação, envelhecimento rápido,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Secagem; Qualidade de sementes; Milho.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761991000100011

Produção de glicerol por linhagens de Saccharomyces durante fermentação alcoólica
Provedor de dados: 43
Autores: Gutierrez,Luiz Eduardo.
A pesquisa foi realizada para comparar os efeitos de diversos fatores (temperatura, pH, concentração de sacarose, 2,4-dinitrofenol e fontes de nitrogênio) sobre a produção de glicerol por Saccharomyces uvarum IZ-1904 e Saccharomyces cerevisiae (M-3 00A e de panificação) durante a fermentação alcoólica. A quantidade de glicerol foi fortemente influenciada pela linhagem da levedura. Com a levedura IZ-1904 houve menor produção de glicerol do que M-300-A e de panificação em todas as condições estudadas. Mais glicerol foi significativamente formado por fermentação a 34°C do que a 25°C e 12°C. Em pH 4.5 houve maior produção de glicerol do que a pH 3.0. A adição de 18 ppm de 2,4-dinitrofenol provocou decréscimo no glicerol formado e esse decréscimo foi maior com...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glicerol; Fermentação alcoólica; Saccharomyces.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761991000100005

Levantamento florístico e fitossociológico dos canteiros do Parque da Escola Superior de Agricultura "Luiz de Queiroz"
Provedor de dados: 43
Autores: Gonldenberg,R.; Rodrigues,R.R.; Essoe,B.
O parque da ESALQ, implantado no início do século pelo arquiteto paisagista Arsênio Puttemans, tem hoje grande valor científico e histórico, além de se constituir na principal área verde da cidade de Piracicaba. Visando o conhecimento detalhado da vegetação arbustivo-arbórea. Foram plaqueados, mapeados, medidos (altura e DAP) e identificados todos os indivíduos com DAP maior ou igual a 5 cm. Os dados foram analisados em computador, usando o programa FITOPAC, de autoria de Shepherd, G.J. (UNICAMP). Neste trabalho estão apresentados os resultados de três canteiros. O primeiro, ocupando uma área de 382 m², teve amostradas 24 espécies distribuídas por 13 famílias, num total de 88 indivíduos. O valor do índice de diversidade H' foi de 2,53, sendo que a espécie...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Levantamento Fitosso-ciológico; Manejo Florestal; Parque.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761991000100006

Anatomia foliar e do pedúnculo floral de plantas de morangueiro (Fragaria x ananassa) "Sequoia" tratadas com fitoreguladores
Provedor de dados: 43
Autores: Appezzato-da-Gloria,B.; Miranda-Stalder,S.H.G.
O presente estudo teve por objetivo descrever a anatomia foliar e do pedúnculo floral do morangueiro "Sequóia" a fim de verificar os efeitos dos reguladores vegetais, ácido giberélico (GA3) e ácido naftalenoacético (NAA), e dos bioestimulantes Ergostim e Atonik, sobre as características anatômicas das plantas tratadas. A dose total empregada dos quatro produtos foi de 30 ppm, parcelada em três pulverizações, iniciadas após o início do florescimento. Foram analisadas amostras de folhas (limbo e pecíolo) e o pedúnculo floral de 3 repetições. As análises histológicas foram feitas mediante o preparo e observação de lâminas de material fresco ou fixado. A análise da folha adulta revela a presença de hidatódios nas extremidades denteadas do limbo. A lâmina...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Morangueiro; Fitorreguladores; Anatomia foliar; Anatomia do pedúnculo floral.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761991000100008

Efeito de diferentes porta-enxertos no vigor e produtividade da laranjeira 'pera' (Citrus sinensis L.) Osbeck)
Provedor de dados: 43
Autores: Mourão Filho,Francisco de Assis Alves; Mischan,Martha Maria; Salibe,Ary Apparecido.
O presente trabalho teve como objetivo avaliar a influência de oito porta-enxertos no vigor, produção e produtividade da laranjeira 'Pera'. Para a realização deste estudo utilizaram-se plantas de um experimento instalado na Fazenda Experimental Lageado da UNESP, Campus de Botucatu, São Paulo. O delineamento estatístico adotado foi o de blocos ao acaso. Os porta-enxertos estudados foram: limoeiros 'Cravo', 'Volkameriano' e 'Rugoso da Flórida', tangerineiras 'Cleópatra' e 'Sunki', laranjeira 'Caipira', 'Trifoliata' e citrange 'Carrizo'. Os resultados revelaram que os porta-enxertos tangerineiras 'Cleópatra' e 'Sunki' e limoeiro 'Rugoso da Flórida' induziram a um maior desenvolvimento das plantas da laranjeira 'Pera'. Os porta-enxertos limoeiros...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Citros; Porta-enxertos; Propagação.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761991000100010

Ocorrência de aflatoxinas em farelo de algodão (Gossypium hirsutum L.) na safra de 1986
Provedor de dados: 43
Autores: Gonçalves,C.M.R.; Fonseca,H.
A ocorrência e o nível de contaminação, com aflatoxinas, foram determinadas em 169 amostras de farelo de algodão. As amostras foram fornecidas por indústrias de óleo localizadas nas regiões de Araraquara, Campinas, Bauru, Paraguaçu Paulista, Guararapes, Londrina e Maringá, coletadas nos meses de abril a novembro da safra de 1986. A determinação das aflatoxinas foi feita por cromatografia em camada delgada. Dos resultados pôde-se concluir que: 1) 114 amostras estavam contaminadas com aflatoxina, representando 67,4 5% do total; 2) o nível de contaminação foi baixo, com valores variando de menos de 10 até 40 ¼g/kg (ppb) , sendo que as amostras com 4 0 ppb representaram apenas 12,3 0% do total contaminado; 3) houve diferença significativa (alfa = 0,05) entre...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Farelo de algodão; Aflatoxinas.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761991000100018

Aumento da produção de etanol a partir de melaço de cana-de-açúcar pela adição de benzoato
Provedor de dados: 43
Autores: Gutierrez,L.E.; Annichino,A.V.K.O.; Lucatti,L.; Silva,S.B. Leite da.
O efeito da adição de benzoato de sódio sobre a fermentação alcoólica de meio de melaço de cana-de-açúcar com 15% de açúcares redutores totais foi estudado utilizando a levedura industrial Saccharomyces cerevisiae M-300-A. Foram adicionados 7,5 miligramas de benzoato de sódio para 0,8 gramas de levedura seca durante 0, 2, 4 e 6 ciclos fermentativos. Com a adição de benzoato ocorreu aumento na produção de etanol, redução do crescimento da levedura e dos teores de glicerol e dos álcoois n-propílico, isobutílico e isoamílico. O inibidor não provocou redução da viabilidade celular e após a retirada do inibidor a levedura voltou a apresentar crescimento. Este fato sugere a possibilidade do uso do benzoato em destilarias de álcool combustível.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Etanol; Fermentação alcoólica; Benzoato; Melaço.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761991000100002

Efeito do nitrito sobre a fermentação alcoólica realizada por Saccharomyces cerevisiae
Provedor de dados: 43
Autores: Gutierrez,L.E.; Orelli,V.F. de Martin.
O efeito de concentrações de até 80 ppm de nitrito sobre a fermentação alcoólica foi estudado com levedura de panificação (Saccharomyces cerevisiae). Houve aumento no tempo de fermentação com adição de nitrito sem afetar a produção de etanol. Com a adição de 60 e 80 ppm de NO2-, ocorreu redução na viabilidade celular e brotamento acompanhada por aumento no acúmulo de trealose e glicogênio. Aumentando a concentração de nitrito houve aumento no álcool n-propílico e redução nos teores de álcoois isobutílico e isoamílico.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fermentação alcoólica; Nitrito; S.cerevisiae.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761991000100004

Correlações entre as concentrações de nutrientes, alumínio e sódio nas folhas de "Coast Cross nº 1" e a análise física e química de um Latossolo vermelho amarelo II: Concentração de nitrogênio e fósforo
Provedor de dados: 43
Autores: Hass,Fernando José; Haag,Henrique Paulo.
Foi realizado um levantamento em 41 pontos de um Latossolo Vermelho Amarelo, com amostragem de solo e folhas da forrageira "Coast Cross Nº 1", objetivando o estudo de correlações entre as concentrações de nutrientes, alumínio e sódio nas folhas e as análises químicas do solo. As folhas foram secas e analisadas para N, P. As amostras de solo foram secas e analisadas pelos seguintes métodos: índices pH (água e CaCl2 0,01 M), matéria orgânica (digestão úmida) , P, K, B, Cu, Fe, Mn, Zn e Na pelo extrator de Mehlich. P através de resina iônica. Ca, Mg e Al pelo KC1 1 N. As frações granulométricas foram dispersas por NaOH 0,1 Ne separadas pelo método da pipeta. Foram observadas correlações entre as concentrações de elementos nas folhas e as determinações no...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nitrogênio; Fósforo; Folhas de coast cross; Correlação; Análise de solo; Latossolo vermelho amarelo.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761991000100015

Sobre uma pequena coleção de ácaros (Arthropoda, Acari) do território federal de Fernando de Noronha, Brasil: II. Oribatídeos
Provedor de dados: 43
Autores: Flechtmann,Carlos H.W.
O exame de uma coleta feita em setembro de 1987 na Ilha de Fernando de Noronha, revelou a presença de duas espécies de ácaros oribatí-deos filiados à família Phtiracaridae, a saber: Atropacarus (Hoplophorella) scapellus Aoki, 1965 e A. (H.) schauenbergi Mahunka, 1978, em matéria orgânica acumulada sobre o ramo de uma árvore, a 1,8 m de altura sobre o solo.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ácaros; Oribatídeos; Fernando de Noronha.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761991000100019

Efeito de diferentes herbicidas na nodulação e na atividade da nitrogenase no amendoim
Provedor de dados: 53
Autores: Novo,Maria do Carmo de Salvo Soares; Cruz,Luciano Souza Paes; Martins,Antonio Lúcio Mello; Nagaih,Violeta; Lombard,Maria Luiza Colognesi de Oliveira; Lopes,Eli Sidney; Ambrósio,Luiz Alberto.
Em ensaio de herbicidas na cultura do amendoim (Arachis hypogaea L.), realizado em Ribeirão Preto, SP, em 1984/85, sem o uso de inoculante, não foram encontrados nódulos nos diferentes tratamentos. Como é comum sua presença em amendoim nessa região, suspeitou-se que os herbicidas utilizados pudessem ter efeito inibitório na nodulação. Avaliou-se, então, o efeito de alachlor, linuron, oxadiazon, pendimetalin e trifluralin aplicados na dose recomendada, na nodulação e na atividade da nitrogenase, durante dois anos consecutivos, usando-se sementes inoculadas e não inoculadas. Foram feitas amostragens aos 28, 42, 63, 84 e 105 dias após a semeadura, observando-se nodulação abundante, em todos os tratamentos, e reduções ocasionais na nodulação e na fixação do...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amendoim; Nodulação; Atividade da nitrogenase; Herbicidas.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000100014

Obtenção e análise do óleo essencial do gengibre: efeito de secagem e processamento
Provedor de dados: 53
Autores: Maia,Nilson Borlina; Bovi,Odair Alves; Duarte,Fernando Romariz.
Estudou-se a produção de óleo de gengibre a partir da destilação dos rizomas descartados na seleção normalmente feita para exportação. O material proveniente de plantações do município de Morretes (PR), foi fatiado ("chips") e submetido a quatro diferentes temperaturas de secagem até atingir peso constante. Parte dos "chips" foi destilada diretamente e parte, moída antes da destilação. Também se destilou o gengibre logo após seu fatiamento, sem nenhuma secagem. A temperatura de secagem não afetou o rendimento de óleo. Já o material moído propiciou uma extração maior do que o fatiado (0,89 e 0,64% respectivamente). A análise qualitativa do óleo essencial, através de cromatografia em fase gasosa, mostrou diferenças significativas na composição dos óleos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gengibre; Zingiber officinale Roscoe; Óleo essencial; Processamento; Secagem; Qualidade.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000100009

Profundidade do sistema radicular das culturas de feijão e trigo sob pivô central
Provedor de dados: 53
Autores: Pires,Regina Célia de Matos; Arruda,Flávio Bussmeyer; Fujiwara,Mamor; Sakal,Emílio; Bortoletto,Nelson.
O estudo foi realizado na Estação Experimental de Votuporanga, do Instituto Agronômico, em solo podzolizado com as culturas de feijão e trigo irrigadas por pivô central no inverno de 1989. O objetivo for a determinação da profundidade efetiva do sistema radicular, como um dos parâmetros fundamentais no manejo das irrigações. Estas eram realizadas quando a tensão da água no solo atingia 0,05 a 0,06 MPa, controlada por tensiômetro a 15cm de profundidade. Foram feitas três medições quinzenais de raízes em cada cultura, utilizando-se trado tipo caneca de 7cm de diâmetro. As amostragens foram tomadas na linha de plantio, de 10 em 10cm até à profundidade de 60cm. Os resultados indicam que, para o manejo adequado da irrigação, a profundidade do sistema radicular...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feijão; Trigo; Distribuição de raízes; Irrigação e pivô central.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000100015

Tentativa de infestação artificial do solo com Fusarium oxysporum f. sp. vasinfectum em condições de campo
Provedor de dados: 53
Autores: Cia,Edivaldo; Fuzatto,Milton Geraldo; Chiavegato,Ederaldo José; Dudienas,Christina; Gridi-Papp,Imre Lajos; Camargo,Antonio Pereira de; Paradela Filho,Osvaldo; Soave,Jaciro.
Com o objetivo de estabelecer um campo experimental para trabalhos de melhoramento genético do algodoeiro para resistência à murcha de Fusarium, uma gleba de aproximadamente 8.000m² foi plantada com cultivar suscetível e inoculada artificialmente, durante sete anos seguidos. Avaliada mediante sintomas externos e internos típicos, a incidência da doença, mesmo após as 14 inoculações, mostrou-se fraca e insatisfatória para os fins visados. Entre as possíveis causas do insucesso são discutidas as condições climáticas, a textura do solo, os métodos de inoculação, a eventual supressividade do solo para Fusarium e a ausência de interação fungo + nematóides.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algodoeiro; Murcha-de-Fusarium (Fusarium oxysporum f. sp. vasinfectum); Infestação artificial.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000200007

Distribuição da assimilação de nitrato e de matéria seca em plantas jovens de café cultivadas em diferentes níveis de nitrogênio
Provedor de dados: 53
Autores: Carelli,Maria Luiza Carvalho; Fahl,Joel Irineu.
Foi estudado o efeito de níveis de nitrogênio na distribuição do processo de redução de nitrato e de matéria seca entre as raízes e a parte aérea, em plantas de café de nove meses de idade, cultivadas em areia em casa de vegetação e irrigadas com soluções nutritivas contendo 3,75, 7,5 e 15mM de nitrato. A área foliar e a matéria seca das folhas aumentaram com o nível de nitrato das soluções, enquanto a matéria seca das raízes e o número de pares de folhas no ramo ortotrópico não foram alterados. A atividade in vivo da redutase de nitrato nas raízes mais jovens foi bem maior do que a das folhas recém-expandidas e aumentou com a concentração de nitrato no meio de crescimento. Os valores da atividade enzimática, quando determinada com a adição de nitrato no...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Café; Crescimento da planta; Redutase de nitrato; Níveis de nitrogênio.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000100004

Adubação da cana-de-acúcar: XIV. Adubação NPK em latossolo roxo
Provedor de dados: 53
Autores: Alvarez,Raphael; Wutke,Antônio Carlos Pimentel; Arruda,Hermano Vaz de; Van Raij,Bernardo; Gomes,Antônio Carlos; Zink,Frederico.
São apresentados e discutidos os resultados de dezenove ensaios de adubação de cana-de-açúcar, efetuados em latossolo roxo, em diferentes regiões paulistas. Adotou-se um delineamento fatorial 3³ para N, P e K, procurando-se avaliar a reação da cultura a esses nutrientes em áreas exploradas havia alguns anos com cana e em outras em início de exploração. A variedade utilizada foi a CB 41/76, plantando-se de janeiro a março de 1958. Foram aplicados 0,90 e 180kg/ha de N; 0,80 e 160kg/ha de P2O5 e 0,100 e 200kg/ha de K2O. Houve respostas significativas a nitrogênio em dez casos, a fósforo em nove e a potássio em dezesseis. A produção média sem adubo, em todos os ensaios, foi de 82,9t/ha. As doses máximas dos adubos proporcionaram aumentos médios de 15,2t/ha...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cana-de-açúcar; Adubação NPK; Economia; Produtividade.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000200014

Melhoramento do trigo: XXIV. Avaliação de novos genótipos no Estado de São Paulo
Provedor de dados: 53
Autores: Camargo,Carlos Eduardo de Oliveira; Felício,João Carlos; Ferreira Filho,Antonio Wilson Penteado; Freitas,José Guilherme de; Kanthack,Ricardo Augusto Dias; Barros,Benedito de Camargo.
Compararam-se vinte e três linhagens de diversas origens e dois cultivares de trigo em ensaios tanto em condição de irrigação por aspersão como de sequeiro, analisando-se a produção de grãos, outros componentes da produção e resistência às doenças. Em casa de vegetação, estudou-se a resistência às misturas de raças prevalecentes dos agentes causais da ferrugem-do-colmo e da-folha e, em condições de laboratório, a tolerância ao alumínio, em soluções nutritivas. As linhagens IAC-243, IAC-187 e IAC-188, de porte baixo, resistentes ao acamamento e de ciclo médio, e a linhagem IAC-190, de porte médio, salientaram-se quanto à produção de grãos em condições de irrigação por aspersão. Em sequeiro, destacaram-se quanto à produtividade as linhagens IAC-188 e...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trigo; Componentes da produção; Resistência a doenças; Tolerância ao alumínio.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000200004

Relação entre densidade e qualidade de sementes de algodoeiro
Provedor de dados: 53
Autores: Pizzinatto,Maria Angélica; Menten,José Otávio Machado; Soave,Jaciro; Cia,Edivaldo; Maeda,Jocely Andreucetti.
Em quatro anos agrícolas, avaliou-se a influência da densidade da semente de algodoeiro sobre a sua qualidade e sanidade e sobre a planta resultante. Foram utilizadas sementes dos cultivares IAC 17 e IAC 18, separadas nas seguintes classes de densidade: menor que 0,90g/cm³; entre 0,90 e 1 ,00g/cm³ ;entre 1,00 e 1,05g/cm³ e maior que 1,05g/cm³. As sementes mais densas (acima de 1,00g/cm³) apresentaram melhor qualidade física e fisiológica que as menos densas (abaixo de 1,00g/cm³), considerando-se o peso de cem sementes, o poder germinativo e o vigor. Em condições de campo, essas sementes resultaram também em maior porcentagem de emergência de plântulas, influindo, conseqüentemente, na população de plantas e na produtividade. A influência não persistiu sobre...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algodão; Gossypium hirsutum L; Sementes; Patologia.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000200008

Ação de fungicidas sobre dois cultivares de feijoeiro em Capão Bonito, SP
Provedor de dados: 53
Autores: Castro,Jairo Lopes de; Ito,Margarida Fumiko; Dudienas,Christina; Bulisani,Eduardo Antonio; Almeida,Luiz D'artagnan de.
Avaliou-se, no controle de doenças do feijoeiro, cvs. Carioca e Carioca 80, a eficiência de onze fungicidas, aplicados na parte aérea, isoladamente, em condições naturais de infecção. Os ensaios foram efetuados em condições de campo nas safras da seca e das águas de 1985 e 1986, na Estação Experimental de Capão Bonito, pertencentes ao IAC. Foram utilizados os seguintes tratamentos fungicidas: benomil, tiofanato metílico, captafol, clorotalonil, acetato de trifenil estanho, carbendazim, tiabendazol, oxicloreto de cobre, sulfato de cobre e hidróxido de trifenil estanho. Na safra da seca/85, pulverizações com captafol, clorotalonil, acetato de trifenil estanho e carbendazim proporcionaram as melhores produções do 'Carioca', e os fungicidas mancozebe,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feijoeiro; Phaseolus vulgaris L; Doenças; Controle químico; Rendimento.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000200010

Conservação e germinação do pólen, polinização e frutificação efetiva em pessegueiros e nectarineiras subtropicais
Provedor de dados: 53
Autores: Barbosa,Wilson; Campo-Dall'Orto,Fernando Antonio; Ojima,Mário; Martins,Fernando Picarelli; Boaventura,Yone Mangilu Seluto.
Pesquisaram-se ambientes, períodos de conservação e meios de cultura para germinação do pólen, além de frutificação afetiva sob autopolinízação e polinização aberta em 25 cultivares e seleções de pessegueiros e nectarineiras do Banco de Germoplasma do Instituto Agronômico (IAC). Os pólens conservados em dessecador a 0 ± 1 °C mantiveram por 60 dias ates taxas de germinação (acima de 70%). Em ambiente de laboratório (25 +1 2ªC), o pólen perdeu rapidamente sua viabilidade; após o 3° dia de armazenamento, o vigor germinativo diminuiu progressivamente. A melhor germinação do pólen in vitro (89%) ocorreu em meio contendo solução salina de Murashige &amp;amp; Skoog, sacarose 5% e ágar 0,7%. Os cultivates a seleções analisados mostraram-se autoférteis,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pêssego; Nectarina; Prunus persica; Germinação do pólen in vitro; Autopolinização; Polinização aberta; Frutificação; Androesterilidade; Autofertilidade.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000100003

Efeito da adubação com superfosfato simples em características agronômicas e propriedades tecnológicas da fibra das variedades de algodoeiro IAC 13-1, IAC 16 e IAC 17
Provedor de dados: 53
Autores: Sabino,Nelson Paulieri; Silva,Nelson Machado da; Kondo,Julio Isao.
Utilizando-se dados de ensaio de longa duração, instalado com as variedades IAC 13-1, IAC 16 e IAC 17 em latossolo roxo de baixa fertilidade, avaliou-se o efeito de sucessivas aplicações de superfosfato simples sobre características agronômicas e propriedades tecnológicas da fibra do algodoeiro. O esquema adotado foi de parcelas subdivididas, sendo os tratamentos das parcelas distribuídos em blocos ao acaso, com quatro repetições. As parcelas foram ocupadas pelas doses anuais de 0, 225, 450 e 675kg/ha de superfosfato simples e as subparcelas, pelas variedades. A gleba experimental recebeu calagem antes do primeiro plantio e adubações anuais de nitrogênio e potássio nas doses fixas de 50 e 75kg/ha de N e K(2)0 respectivamente. As variedades IAC 13-1, IAC 16...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algodão; Qualidade da fibra; Adubação.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000100013

Adequação de modelo aditivo-dominante em dois caracteres de crotalária: aditive-dominant in two traits of sunn hemp
Provedor de dados: 53
Autores: Miranda,Manoel Albino Coelho de.
Partindo do pressuposto de que as médias das populações parentais, das segregantes (F2 e retrocruzamento) e da híbrida (F1), poderiam ser expressas em termos da média dos parentais (m), do efeito aditivo (a) e do efeito de dominância (d), avaliou-se esse modelo pelos testes de escala individual e pelo de escala conjunta, em populações derivadas do cruzamento de duas linhagens endogâmicas de crotalária (Crotalaría juncea L), para a produtividade de sementes e altura de planta. No Centro Experimental de Campinas, em 1990, as plantas foram distribuídas individualmente ao acaso na presença de insetos polinizadores. Concluiu-se que o modelo foi perfeitamente compatível aos dados de produção, não se verificando o mesmo ajustamento para os resultados de altura de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Componentes das médias; Efeito aditivo e de dominância; Heterose; Crotalária; Crotalaria juncea L.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000200003

O pessegueiro no sistema de pomar compacto: IV. Intensidade e época de raleio dos frutos dos cultivares Tropical e Aurora-1
Provedor de dados: 53
Autores: Barbosa,Wilson; Campo-Dall'orto,Fernando Antonio; Ojima,Mário; Martins,Fernando Picarelli; Igue,Toshio.
A intensidade e a época do raleio dos frutos do pessegueiro podem influenciar diretamente a qualidade do produto, razão pela qual foram pesquisadas em um pomar compacto (4.167 plantas por hectare), sob poda drástica anual de renovação da copa. O experimento foi executado na Estação Experimental de Jundiaí (23°08'S e 46°55'W), do Instituto Agronômico (IAC), sob clima do tipo Cwa, mesotérmico úmido, também denominado de tropical de altitude, com cerca de 80 horas anuais de frio abaixo de 7°C. Utílizaram-se os cultivares Tropical, de maturação bem precoce (fins de setembro), e Aurora-1, de maturação precoce (meados de outubro). Efetuou-se o raleio com 30, 40 e 50 dias pós-antese (DPA), deixando-se 30, 60 e 90 frutos por planta. Os melhores resultados,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pêssego; Prunuspersica (L) Batsch; Pomar compacto; Intensidade e época de raleio; Tamanho de fruto; Produção.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000100010

Tamanho e forma de parcela experimental para cana-de-açúcar
Provedor de dados: 53
Autores: Igue,Toshio; Espironelo,Ademar; Cantarella,Heitor; Nelli,Erseni João.
Realizou-se um ensaio de uniformidade na Usina Barra Grande, em Lençóis Paulista, SP, em 1982, a fim de estudar o tamanho e a forma de parcela para experimento de campo com cana-de-açúcar: simularam-se 55 diferentes tipos de parcela, cuja unidade básica constou de 2m lineares de uma linha de cana espaçada de outra de 1,5m, tomando-se o peso dos colmos de cada unidade básica. A formação de diferentes tamanhos de parcela foi feita pelo agrupamento das unidades básicas adjacentes. Foram determinados os índices de heterogeneidade do solo, b, cujos valores variaram de 0,2843 a 0,6000, dependendo dos métodos utilizados e da maneira de compor os blocos, parcelas e subparcelas. Em solos homogêneos, parcelas menores que 54m² podem ser utilizadas com maior...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cana-de-açúcar; Parcela; Tamanho e forma; Precisão experimental.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000100016

Melhoramento do trigo: XXVI. Avaliação de linhagens com tolerância à toxicidade de alumínio, manganês e ferro em soluções nutritivas
Provedor de dados: 53
Autores: Camargo,Carlos Eduardo de Oliveira; Rocha Júnior,Laércio Soares; Ferreira Filho,Antonio Wilson Penteado.
Efetuaram-se cruzamentos entre o cultivar BH-1146, de porte alto, tolerante à toxicidade de alumínio e sensível à toxicidade de ferro e manganês, e o cultivar Siete Cerros, de porte semi-anão, sensível à toxicidade de alumínio, porém com tolerância à toxicidade de ferro e manganês. Selecionaram-se plântulas desse cruzamento, em geração F2, quanto à tolerância ao alumínio (10mg/litro), empregando-se soluções nutritivas, e plantaram-nas em vasos no telado contra o ataque de pássaros. A partir da geração F3 até F6, selecionaram-se plântulas em soluções nutritivas distintas contendo 6mg/litro de Al3+, 600mg/litro de Mn2+ e 10mg/litro de Fe2+. Avaliaram-se as vinte e três linhagens obtidas - doze de porte semi-anão e onze de porte alto juntamente com os...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trigo; Linhagens; Cultivares; Comprimento da raiz; Toxicidade de alumínio; Manganês e ferro; Tolerância; Sensibilidade.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000200006

Melhoramento do algodoeiro no Estado de São Paulo: obtenção da variedade IAC 19
Provedor de dados: 53
Autores: Gridi-Papp,Imre Lajos; Cia,Edivaldo; Fuzatto,Milton Geraldo; Cavaleri,Popilio Ângelo; Chiavegato,Ederaldo José; Silva,Nelson Machado da; Carvalho,Luiz Henrique; Sabino,Nelson Paulieri; Kondo,Julio Isao; Sugimori,Mauro Hideo; Soave,Jaciro; Ferraz,Carlos Antonio Menezes.
Um programa de cruzamentos intra-específicos e seleção foi iniciado pela Seção de Algodão, em 1963, com o objetivo de associar numa linhagem melhorada de algodoeiro, alta produtividade, resistência à murcha de Fusarium e alta resistência da fibra. Foram utilizados o algodoeiro selvagem Gossypium hirsutum var. yucatanense Hutch., uma variedade primitiva originária do Vietnã, oito cultivares norte-americanos e dois paulistas da mesma espécie. Após nove anos de seleção nas populações híbridas obtidas e respectivos estudos das progênies, cinco anos de estudos genealógicos e dois anos em estudos regionais de variedades, foi obtido e lançado para plantio o cultivar IAC 19, proveniente da linhagem selecionada IAC 74/221. Ele veio substituir na lavoura o 'IAC 16'...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algodão; Melhoramento vegetal; Produtividade; Resistência da fibra; Resistência a Fusarium.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000200002

Trigo: épocas de semeadura em Assis (Vale do Paranapanema), SP, no período 1978-82
Provedor de dados: 53
Autores: Felício,João Carlos; Camargo,Carlos Eduardo de Oliveira; Ferreira Filho,Antonio Wilson Penteado; Freitas,José Guilherme de; Pedro Júnior,Mario José.
Avaliaram-se os resultados de rendimento dos cultivares de trigo CNT-8, IAC-17 e BH-1146 em oito épocas de semeadura (a primeira no primeiro decêndio de março e a última no terceiro decêndio de maio), na Fazenda Canadá, em Assis (SP), durante o qüinqüênio 1978/82. Em cada época de semeadura, efetuaram-se avaliações de rendimento de grãos e altura de plantas. A disponibilidade hídrica do solo para a cultura foi caracterizada através de balanço hídrico decendial, considerando 125mm como a capacidade máxima de retenção de água no solo. Os resultados indicaram como a melhor faixa de semeadura, independente de cultivar, o período compreendido entre o terceiro decêndio de março e o primeiro decêndio de abril. Indicaram, também, que os períodos extremos estudados...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trigo; Cultivares CNT-8; IAC-17 e BH-1146; Produção de grãos; Altura das plantas; Época de semeadura; Balanço hídrico.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000100012

Efeitos de fitorreguladores no crescimento e na floração de plantas de gerânio
Provedor de dados: 53
Autores: Nucci,Tânia Aparecida de; Fahl,Joel Irineu; Carelli,Maria Luiza Carvalho; Matthes,Luiz Antônio Ferraz.
Com a finalidade de verificar a eficiência de fitorreguladores no controle da altura de gerânio (Pelargonium hortorum Bailey) e no comprimento do ráquis de sua inflorescência, instalaram-se dois ensaios na região de Cotia, SP, ambos plantados em vasos em casa de vegetação. Num deles, foram pulverizados clormequate e daminozide, nas doses de 1.000, 2.000 e 4.000 ppm por planta, e paclobutrazol nas doses de 15, 30 e 60 ppm. No segundo ensaio, foram pulverizados clormequate a 2.000ppm, por duas vezes e, em aplicação única, daminozide a 4.000 ppm e paclobutrazol nas doses de 5, 10 e 15 ppm. Clormequate e daminozide, de modo geral, não foram eficientes na redução do porte das plantas nem do comprimento do ráquis da inflorescência. Paclobutrazol, em todas as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gerânio; Controle do crescimento; Clormequate; Daminozide; Paclobutrazol.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000100005

IAC 60 Centenário e IAC 162 Tuiuiú: cultivares de trigo para sequeiro e irrigado no Estado de São Paulo
Provedor de dados: 53
Autores: Felício,João Carlos; Camargo,Carlos Eduardo de Oliveira; Ferreira Filho,Antonio Wilson Penteado; Gallo,Paulo Boller; Ramos,Valdir Josué; Vitti,Policarpo.
Os cultivares de trigo IAC 60 (Centenário) e IAC 162 (Tuiuiú), provenientes de cruzamentos artificiais e obtidos por seleção genealógica, foram avaliados quanto à produção de grãos e às reações aos agentes causais da ferrugem-do-colmo (casa de vegetação), da ferrugem-da-folha, da helmintosporiose e da brusone na região do Vale do Paranapanema, em condições de sequeiro, e na região Norte do Estado de São Paulo, com irrigação por aspersão. Foram também avaliadas as qualidades industriais de panificação. As produções de grãos dos novos cultivares (sequeiro) não diferiram dos cultivares controles BH 1146 e IAC 24, em solos com elevada acidez (AA), e do Anahuac, em solos mais férteis (BA). Com irrigação, o IAC 60 e o IAC 162 expressaram todo o seu potencial...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trigo; Condição de sequeiro e de irrigação; Produção de grãos; Resistência às doenças; Características de panificação.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000200009

Comparação da morfologia de folhas lisas e rugosas de plantas de feijoeiro
Provedor de dados: 53
Autores: Voltan,Rachel Benetti Queiroz; Wutke,Elaine Bahia; Bulisani,Eduardo Antonio; Ambrosano,Edmilson José; Sordl,Guido de; Pereira,José Carlos Vila Nova Alves.
Em campo de produção de sementes na Estação Experimental de Ribeirão Preto (SP), do Instituto Agronômico, em 1986, identificou-se uma plantada feijoeiro (Phaseolus vulgaris L.) 'Goiano Precoce', com folhas rugosas e coloração mais intensa que a típica do cultivar. Efetuaram-se estudos anatômicos comparativos entre as folhas típicas do feijão (lisas) e as rugosas, com o objetivo de avaliar se o caráter rugoso era vantajoso. Observações na sua epiderme indicaram que as folhas rugosas apresentam maior densidade de tricomas e estômatos, além de células epidérmicas irregulares e menores. As plantas rugosas apresentam também um mesofilo denso, com pequenos espaços intercelulares e um limbo mais espesso.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feijão; Phaseolus vulgaris L.; 'Goiano Precoce'; Anatomia.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000100002

Aspectos biológicos de Sceloenopla bidens, praga de filodendros
Provedor de dados: 53
Autores: Lourenção,André Luiz; Stein,Cesar Pagotto; Matthes,Luiz Antônio Ferraz.
Há cerca de dez anos vem sendo observada a presença de Sceloenopla bidens (F., 1792) (Coleoptera: Chrysomelidae: Hispinae) em folhas de Philodendron spp., em Campinas e outras localidades paulistas. O adulto permanece na face inferior das folhas, onde se alimenta, causando injúrias características. As larvas criam-se nas folhas, minando-as e comprometendo o aspecto ornamental da planta. Em condições de laboratório, o desenvolvimento do inseto desde ovo até emergência do adulto durou aproximadamente 48 dias. Em Campinas, efetuaram-se observações de seus danos na Floricultura Campineira, em cinco espécies de filodendros presentes - P. melinoni, P. bipinnatifidum, P. erubescens, P. selhom e P. wilsoni e no parque do Instituto Agronômico (IAC), onde a maioria...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta Coleoptera Chrysomelidae Hispinae Sceloenopla bidens (F.; 1792) Philodendron spp.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000100008

Isoenzimas na identificação precoce de híbridos e clones nucelares no melhoramento de citros
Provedor de dados: 53
Autores: Ballve,Rosa Maria Lizana; Bordignon,Rita; Medina Filho,Herculano Penna; Siqueira,Walter Jose; Teófilo Sobrinho,Joaquim; Rompeu Júnior,Jorgino.
Um dos problemas relacionados ao melhoramento de citros é a poliembrionia e a conseqüente dificuldade, após cruzamentos controlados, de distinguir clones nucelares dos híbridos. Estudou-se um método para eletroforese de isoenzimas em gel de amido para doze sistemas isoenzímicos, desenvolvendo-se procedimento apropriado para a resolução simultânea dos sistemas fosfatase ácida, peroxidase anódica e catódica, glutamato oxaloacético transaminase, fosfoglucoisomerase, fosfoglucomutase e enzima málica. Caracterizaram-se por esses sistemas 31 clones de citros com possível interesse para o programa de melhoramento do IAC. Estão envolvidos 7 locos e 25 alelos, permitindo uma identificação precoce de híbridos antes do plantio no campo para avaliações agronômicas....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Citros; Genética; Melhoramento; Isoenzimas; Híbridos; Clones nucelares; Embriões zigóticos.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000100007

Estudo regional da adubaçáo boratada do algodoeiro no Estado de São Paulo
Provedor de dados: 53
Autores: Silva,Nelson Machado da; Carvalho,Luiz Henrique; Chiavegato,Ederaldo José; Kondo,; Bataglia,Ondino Cleante; Hiroce,Ruter; Bortoletto,Nelson; Sabino,José Carlos.
Quinze experimentos de adubação boratada foram realizados em condições de campo com o algodoeiro, em diferentes regiões produtoras paulistas, no período de 1979-86.O micronutriente foi aplicado na adubação do plantio, nas doses de 0,0; 0,2; 0,4; 0,8; 1,6 e 3,2kg/ha de B, como bórax, em esquema estatístico de quadrado latino. Utilizaram-se sementes dos cultivares IAC 17, nos quatro primeiros anos, e IAC 20, nos demais. Na maioria dos experimentos, houve resposta favorável à adubação, em termos de produção, embora se tenham obtido em apenas três deles (20% dos casos) diferenças estatisticamente significativas. Quanto à concentração de boro no limbo (quinta folha), ocorreu aumento significativo em seis dos onze ensaios amostrados (55%). Reunindo os...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Boro; Estudo regional; Algodão; Produtividade e análise foliar; Análise de solo; Correlações.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000200013

Fontes de resistência ao bicho-mineiro, Perileucoptera coffeella, em Coffea spp.
Provedor de dados: 53
Autores: Guerreiro Filho,Oliveiro; Medina Filho,Herculano Penna; Carvalho,Alcides.
Procurou-se determinar, em nível de laboratório, por meio de infestações artificiais uniformes, fontes de resistência ao bicho-mineiro Perileucoptera coffeella (Guérin-Mèneville, 1842), entre as espécies Coffea stenophyila, C. salvatríx, C. racemosa, C. liberíca, C. eugenioides, C. kapakata, C. dewevrei, C. brevípes, C. congensis e C, canephora e os cultivares Catuaí Vermelho e Mundo Novo de C. arábica. Utilizaram-se testes de livre escolha e de confinamento, sendo avaliados os seguintes parâmetros: oviposição, número de discos lesionados por parcela, nota visual, área foliar danificada por parcela e área foliar danificada por lagarta. De acordo com os parâmetros analisados, pode-se, com relação ao número de pontos atribuídos na avaliação visual e quanto à...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coffea spp. bicho-mineiro; Períleucoptera coffeella; Resistência genética.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000100006

Triticale: tolerância ao alumínio em solução nutritiva
Provedor de dados: 53
Autores: Camargo,Carlos Eduardo de Oliveira; Felício,João Carlos; Ferreira Filho,Antonio Wilson Penteado.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000200011

Tolerância a alumínio e eficiência a fósforo em milho e arroz: características independentes
Provedor de dados: 53
Autores: Furlani,Pedro Roberto; Furlani,Angela Maria Cangiani.
Oito experimentos foram realizados em solução nutritiva, em casa de vegetação localizada no Centro Experimental do Instituto Agronômico de Campinas, em 1982-86, com o objetivo de avaliar cem linhagens de arroz e quarenta de milho quanto à eficiência e utilização de fósforo na ausência de Al, e quanto à tolerância a Al em baixo P. Verificou-se, através de coeficiente de correlação (r), se a tolerância a Al se relacionava com a eficiência a P, avaliadas por parâmetros confiáveis previamente estabelecidos. As linhagens de arroz e milho foram agrupadas em nove classes cujos limites foram determinados pelo intervalo de confiança da média do índice de eficiência a P e da média do índice de tolerância a Al. As linhagens de arroz de sequeiro mostraram-se...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arroz; Milho; Eficiência a P; Tolerância a Al.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000200012

Herbicidas de aplicação em pós-emergência em amendoim: I: controle de plantas daninhas e persistência no solo
Provedor de dados: 53
Autores: Cruz,Luciano Souza Paes; Novo,Maria Do Carmo de Salvo Soares; Pereira,José Carlos Vila Nova Alves; Nagai,Violeta.
No ano agrícola 1987/88, foi realizado um experimento de campo na Estação Experimental de Ribeirão Preto, do Instituto Agronômico, em latossolo roxo, textura argilosa, com a finalidade de pesquisar a ação dos herbicidas aplicados em pós-emergência no controle de plantas daninhas e sua persistência em solo, na cultura de amendoim (Arachis hypogaea L). O experimento foi em parcelas subdivididas com as parcelas distribuídas em blocos ao acaso com quatro repetições. Nas parcelas, estudaram-se os tratamentos referentes à presença e à ausência de inoculação, sendo o inoculante preparado com a mistura de estirpes de Bradyrhizobium sp. (SMS-319, SMS-400 e SMS-561); nas subparcelas, os herbicidas fomesafen (250g/ha), lactofen (192g/ha), fluazifop-p-butil (187g/ha),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amendoim; Herbicidas; Persistência no solo; Controle de plantas daninhas.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000100011

Editorial
Provedor de dados: 53
Tipo: Info:eu-repo/semantics/other
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000200001

Melhoramento do trigo: XXV. Avaliação de genótipos oriundos de populações híbridas introduzidas de Oregon (EUA) no Estado de São Paulo
Provedor de dados: 53
Autores: Camargo,Carlos Eduardo de Oliveira; Felício,João Carlos; Ferreira Filho,Antonio Wilson Penteado; Barros,Benedito de Camargo; Freitas,José Guilherme de; Pettinelli Júnior,Armando; Gallo,Paulo Boller; Kanthack,Ricardo Augusto Dias.
Foram comparadas entre si vinte e duas linhagens e três cultivares (BH-1146, IAC-18 e Alondra-S-46) em seis ensaios, instalados nas Estações Experimentais de Tatuí (1985-87) e Mococa (1984), no Centro Experimental de Campinas (1985) e na Fazenda Nossa Senhora da Penha (1986), município de Florínea, em condições de irrigação por aspersão, analisando-se os seguintes parâmetros: rendimento de grãos, características agronômicas e resistência às doenças. Em casa de vegetação, efetuaram-se estudos de resistência às misturas de raças prevalecentes dos agentes causais da ferrugem-do-colmo e da-folha e, em condições de laboratório, estudos da tolerância ao alumínio, em soluções nutritivas. Em solos corrigidos de Tatuí, a linhagem 1 (Novi Sad 738/Bluejay), sensível...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trigo; Cultivar; Linhagens; Produção de grãos; Altura das plantas; Ferrugem-do-colmo e da-folha; Tolerância; Toxicidade de alumínio.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000200005

Editorial
Provedor de dados: 53
Autores: Furlani,Ângela Maria Cangiani.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051991000100001

Municipio y poder local, reiteraciones y vacíos en el discurso andino
Provedor de dados: 122
Autores: Torres Dávila, Víctor Hugo.
En este trabajo se analiza la literatura académica sobre la "cuestión municipal" producida en Perú, Ecuador y Colombia, teniendo como referente la problematización que se ha realizado sobre esta materia desde la particular experiencia de los procesos urbanos en las ciudades primadas y las denominadas ciudades intermedias de los países andinos mencionados.
Tipo: Tesis
Palavras-chave: GOBIERNO LOCAL; MUNICIPIOS; DESCENTRALIZACIÓN; PODER LOCAL; REGIÓN ANDINA.
Ano: 1991
URL: http://hdl.handle.net/10469/462

De Chimbo y Calvas a "Pozo 30", de "Pozo 30" a... un estudio de caso del proceso de colonización en Shushufindi.
Provedor de dados: 122
Autores: Tamariz Tormen, María Eugenia.
La colonización es definida como un proceso a través del cual individuos se asientan, de forma más o menos permanente, en una zona deshabitada o muy poco habitada (Schuurman: 1980, 106). Este proceso implica un movimiento poblacional, migración, y la apertura de fronteras agrícolas, es decir, incorpora tierras a la producción. El crecimiento urbano, los servicios y el comercio formarían también parte del proceso (Lesevic: 1984, 12).
Tipo: Tesis
Palavras-chave: COLONIZACIÓN; ORIENTE ECUATORIANO; MIGRACIÓN INTERNA; PRODUCCIÓN.
Ano: 1991
URL: http://hdl.handle.net/10469/228

Narcotráfico y violencia en los países andinos
Provedor de dados: 122
Autores: Paéz Cordero, Alexei.
El narcotráfico ha cobrado el carácter de problema central en los países andinos, y su presencia, la dinamia de la industria o complejo productivo coca-cocaína ha impregnado de manera profunda los procesos económicos en todos los países andinos, en especial aquellos donde existe una base social campesina vinculada a la producción de hoja de coca y refinación de clorhidrato de cocaína.
Tipo: Tesis de maestría
Palavras-chave: SEGURIDAD NACIONAL; NARCOTRÁFICO; DROGAS DE USO INDEBIDO; VIOLENCIA; TRÁFICO DE DROGAS; REGIÓN ANDINA; TRÁFICO DE ESTUPEFACIENTES.
Ano: 1991
URL: http://hdl.handle.net/10469/466

Análisis crítico de la noción populismo
Provedor de dados: 122
Autores: Rodríguez Castelo, Ruby.
Existen una diversidad de enfoques acerca de la noción de Populismo, debido a que no posee un estatuto teórico definido, careciendo por tanto de precisión conceptual; lo que ha hecho que sea usado para referirse a diferentes fenómenos. En efecto, se lo ha empleado para definir una gran variedad de movimientos, doctrinas y regímenes políticos; lo que ha llevado incluso a negar su utilidad teórica.
Tipo: Tesis de maestría
Palavras-chave: POPULISMO POLÍTICA MODERNIZACIÓN VELASQUISMO ECUADOR IDEOLOGÍAS POLÍTICAS VELASCO IBARRA; JOSÉ MARÍA.
Ano: 1991
URL: http://hdl.handle.net/10469/364

IADAP [Recurso electrónico] : [no. 13, agosto 1991]
Provedor de dados: 122
Autores: Instituto Andino de Artes Populares.
Presentación, p.5 ; Folklore y cultura popular, equívocos / Isabel Aretz, p. 7 ; Tradición oral y sociedad / Germán Jaramillo Duque, p. 9 ; Relaciones arte y sociedad, visión antropológica del mundo del Pacífico / Carlos Aldunate; Manuel Dannemann, p. 13 ; Concepción antropológica de una conciencia oceánica en Chile e Iberoamérica / Manuel Dannemann, p. 21 ; La vida de las máscaras / José Sánchez Parga, p. 27 ; Mates ornamentales del Perú, una tradición prehispánica / Rogger Ravines, p. 30 ; El diablo, la diablada, “El Tío” y otras consideraciones / Alberto Guerra G., p. 34 ; El paisaje en la canción popular venezolana / Luis Felipe Ramón y Rivera, p. 37 , Otra vez, doce de octubre / Ronny Velásquez, p. 43 ; Noticias, p. 47 ; Exposiciones, p. 52 ;...
Tipo: Revista
Palavras-chave: CULTURA POPULAR; LITERATURA ORAL; ANTROPOLOGÍA CULTURAL Y SOCIAL; MÁSCARAS; ARTESANÍAS CON CALABAZA; MÚSICA; DANZA; MÚSICA VENEZOLANA; AMÉRICA LATINA; PUBLICACIONES PERIÓDICAS.
Ano: 1991
URL: http://hdl.handle.net/10469/3572

La discusión sobre el problema del estado en el Ecuador desde una perspectiva comparada respecto a América Latina en la década de los ochenta
Provedor de dados: 122
Autores: León Jiménez, Ninfa.
El presente trabajo analiza la producción teórica que aborda el problema del Estado ecuatoriano en la década de los ochenta, desde una perspectiva comparada respecto a la reflexión latinoamericana sobre el tema. Después de hacer una breve revisión de las matrices teóricas a las que se remiten los trabajos revisados, se analiza la discusión latinoamericana sobre la problemática del Estado de este período, la cual gira en torno a dos temas centrales que son: el régimen político y los efectos que la transnacionalización de la economía ha tenido en la autonomía del Estado. La reflexión ecuatoriana sobre el problema del Estado es analizada a continuación encontrándose que en este caso también el régimen político es el tema central de análisis, apareciendo...
Tipo: Tesis
Palavras-chave: ESTADO; POLÍTICA; ECUADOR; AMÉRICA LATINA.
Ano: 1991
URL: http://hdl.handle.net/10469/564

IADAP [Recurso electrónico] : [no. 13, agosto 1991]
Provedor de dados: 122
Autores: Instituto Andino de Artes Populares.
Presentación, p.5 ; Folklore y cultura popular, equívocos / Isabel Aretz, p. 7 ; Tradición oral y sociedad / Germán Jaramillo Duque, p. 9 ; Relaciones arte y sociedad, visión antropológica del mundo del Pacífico / Carlos Aldunate; Manuel Dannemann, p. 13 ; Concepción antropológica de una conciencia oceánica en Chile e  Iberoamérica / Manuel Dannemann, p. 21 ;  La vida de las máscaras / José Sánchez Parga, p. 27 ; Mates ornamentales del Perú, una tradición prehispánica / Rogger Ravines, p. 30 ; El diablo, la diablada, “El Tío” y otras consideraciones / Alberto Guerra G., p. 34 ; El paisaje en la canción popular venezolana / Luis Felipe Ramón y Rivera, p. 37 , Otra vez, doce de octubre / Ronny Velásquez, p. 43 ; Noticias, p. 47 ; Exposiciones, p. 52 ;...
Tipo: Revista
Palavras-chave: CULTURA POPULAR; LITERATURA ORAL; ANTROPOLOGÍA CULTURAL Y SOCIAL; MÁSCARAS; ARTESANÍAS CON CALABAZA; MÚSICA; DANZA; MÚSICA VENEZOLANA; AMÉRICA LATINA; PUBLICACIONES PERIÓDICAS.
Ano: 1991
URL: http://hdl.handle.net/10469/807

Las relaciones cívico-militares en el post-retorno : Ecuador 1979 - 1990
Provedor de dados: 122
Autores: Vallejo Flores, Margarita.
El estudio relativo el terna de los roles que cumplen los militares en el post-retorno en el Ecuador, es la preocupación central del presente trabajo. Interesa analizar las actividades a través de las cuales las Fuerzas Armadas han establecido vínculos en espacios de acción compartidos con grupos civiles. A partir de alli, se plantean algunas interrogantes sobre las implicaciones posibles que tales relaciones puedan tener para el estudio de una nueva dimensión de las incursiones militares en la política. Se propone, además, que las acciones a las que se alude serían irradiadas por las Fuerzas Armadas desde un nuevo espacio que, a partir del post-retorn, se ubica de manera privilegiada en la esfera civil de la sociedad.
Tipo: Tesis
Palavras-chave: RELACIÓN CÍVICO-MILITAR; DESARROLLO ECONÓMICO Y SOCIAL; FUERZAS ARMANDAS; ECUADOR.
Ano: 1991
URL: http://hdl.handle.net/10469/493

Análisis crítico de la noción populismo
Provedor de dados: 122
Autores: Rodríguez Castelo, Ruby.
Existen una diversidad de enfoques acerca de la noción de Populismo, debido a que no posee un estatuto teórico definido, careciendo por tanto de precisión conceptual; lo que ha hecho que sea usado para referirse a diferentes fenómenos. En efecto, se lo ha empleado para definir una gran variedad de movimientos, doctrinas y regímenes políticos; lo que ha llevado incluso a negar su utilidad teórica.
Tipo: Tesis de maestría
Palavras-chave: POPULISMO POLÍTICA MODERNIZACIÓN VELASQUISMO ECUADOR IDEOLOGÍAS POLÍTICAS VELASCO IBARRA; JOSÉ MARÍA.
Ano: 1991
URL: http://hdl.handle.net/10469/364

Las mineras y las cholas en la transición y la democratización boliviana, 1978-1990
Provedor de dados: 122
Autores: Zabaiacanedo, María Lourdes.
En el contexto latinoamericano nuevos movimientos sociales parecen emerger estimulados por la derrota de los partidos de izquierda y del movimiento obrero tradicional. Desde esta perspectiva. dos son los efectos que habrían estimulado la formación de estos movimientos. De un lado. la obligada fragmentación de las estructuras partidarias y los sindicatos. que bajo el control de Estados autoritarios han estado sometidos a la represión directa y a la violencia institucional. De otro, la crisis de representación y legitimidad de los actores políticos institucionales que habría determinado la búsqueda de renovadas formas de acción colectiva y la emergencia de nuevas áreas de conflicto y preocupaciones.  En este campo. habrían surgido en América Latina...
Tipo: Tesis
Palavras-chave: MUJERES; MINERÍA; DEMOCRATIZACIÓN; PARLAMENTO; BOLIVIA.
Ano: 1991
URL: http://hdl.handle.net/10469/1010

Los protectores de naturales en la audiencia de Quito, siglos XVII y XVIII
Provedor de dados: 122
Autores: Bonnett Velez, Diana.
Como fruto de la obra lascasiana la Corona española amplió en sus colonias el aparato administrativo general y local, específicamente en lo concerniente a la Rama Jurídica, con el ánimo de implementar una polftica de defensa del indígena siempre y cuando ésto no interfiriera de manera sustantiva con los principios económicos de la Metrópoli.    Por eso, desde la primera mitad del siglo XVI se instituyeron en las diversas áreas coloniales los protectores de naturales que tenían como tarea primordial la representación legal de la población indígena en los distintos juicios y litigios que se presentaban; se constituyeron en jueces de paz y velaron desde la base misma del Poder Judicial por la suerte de la sociedad nativa.
Tipo: Tesis de maestría
Palavras-chave: HISTORIA; COLONIAS; AMÉRICA; DERECHOS; INDIOS DEL ECUADOR; LEGISLACIÓN.
Ano: 1991
URL: http://hdl.handle.net/10469/851

Historia natural de un valle en Los Andes La Paz
Provedor de dados: 121
Autores: ed. por Eduardo Forno; Mario Baudoin.
Tipo: Text
Palavras-chave: HISTORIA NATURAL; BOLIVIA; FAUNA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=107498&tab=opac&oai:flacso.org.ec:107498

Colonial situations essays on the contextualization of ethnographic knowledge
Provedor de dados: 121
Autores: ed. por George W. Stocking.
Tipo: Text
Palavras-chave: HISTORIA; COLONIALISMO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=14836&tab=opac&oai:flacso.org.ec:14836

Class in twentieth-century american sociology an analysis of theories and measurement strategies.
Provedor de dados: 121
Autores: Grimes, Michael D.
Tipo: Text
Palavras-chave: CLASES SOCIALES; ESTADOS UNIDOS; HISTORIA; ESTUDIOS SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=6732&tab=opac&oai:flacso.org.ec:6732

communication manual
Provedor de dados: 121
Tipo: Text
Palavras-chave: NOTICIAS; RADIO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=1994&tab=opac&oai:flacso.org.ec:1994

Tesoros de Colombia
Provedor de dados: 121
Tipo: Text
Palavras-chave: MUSEO DE ARTE; TESOROS; COLOMBIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=125752&tab=opac&oai:flacso.org.ec:125752

Game Theory
Provedor de dados: 121
Autores: Drew Fudenberg; Jean Tirole; Fudenberg, Drew.
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=111479&tab=opac&oai:flacso.org.ec:111479

Recursos mundiales 1990 -1991
Provedor de dados: 121
Autores: Instituto de Recursos Mundiales; Programa de la Naciones Unidas para el Medio Ambiente; Programa de las Naciones Unidades para el Desarrollo.
Tipo: Text
Palavras-chave: RECURSOS NATURALES; MEDIO AMBIENTE.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=109553&tab=opac&oai:flacso.org.ec:109553

Comercio de servicios problemas sectoriales   proyectos INCTAD
Provedor de dados: 121
Autores: INCTAD.
Tipo: Text
Palavras-chave: COMERCIO INTERNACIONAL; SERVICIOS; EMPRESAS; COMPETITIVIDAD; MERCADO DE SERVICIOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=6616&tab=opac&oai:flacso.org.ec:6616

Third world women and the politics of feminism
Provedor de dados: 121
Autores: editado por Chandra Talpade Mohanty...[et.al.].
Tipo: Text
Palavras-chave: FEMINISMO; MUJERES; CONDICIONES SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=100208&tab=opac&oai:flacso.org.ec:100208

The social dynamics of videomedia in an indigenuos society the cultural meaning and the personal politics of video-making in Kayapo communities
Provedor de dados: 121
Autores: por Terence Turner.; Turner, Terence.
Tipo: InteractiveResource
Palavras-chave: MEDIOS AUDIOVISUALES; CONCIENTIZACION; CULTURA; KAYAPO; BRASIL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=14800&tab=opac&oai:flacso.org.ec:14800

La universalidad de los derechos humanos
Provedor de dados: 121
Autores: Daniel Herrendorf; Herrendorf, Daniel.
Tipo: InteractiveResource
Palavras-chave: DERECHOS HUMANOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=7739&tab=opac&oai:flacso.org.ec:7739

Agricultural development an international perspective
Provedor de dados: 121
Autores: Yujuro Hayami; Vernon W. Ruttan; Hayami, Yujiro.
Tipo: Text
Palavras-chave: AGRICULTURA; DESARROLLO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=102278&tab=opac&oai:flacso.org.ec:102278

The nationalization of the masses political symbolism and mass movements in Germany from the Napoleonic wars through the Third Reich.
Provedor de dados: 121
Autores: George L. Mosse; Mosse, George L.
Tipo: Text
Palavras-chave: GOBIERNO; NACIONALISMO; SOCIEDAD; ALEMANIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=133548&tab=opac&oai:flacso.org.ec:133548

To be Indian, to be Bolivian "Ethnic" and "National" discourses of identity
Provedor de dados: 121
Autores: por Thomas Abercrombie; Abercrombie, Thomas.
Tipo: InteractiveResource
Palavras-chave: ETNICIDAD; NACIONALISMO; IDENTIDAD; BOLIVIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=13855&tab=opac&oai:flacso.org.ec:13855

Carnivals, rogues, and heroes an interpretation of the Brazilian Dilemma
Provedor de dados: 121
Autores: por Roberto Da Matta; Matta, Roberto da.
Tipo: Text
Palavras-chave: RITUALES; CONTROL SOCIAL; BRASIL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=127963&tab=opac&oai:flacso.org.ec:127963

Pancho Villa
Provedor de dados: 121
Tipo: Text
Palavras-chave: HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=139928&tab=opac&oai:flacso.org.ec:139928

Environmental assessment sourcebook
Provedor de dados: 121
Autores: The World Bank Environment Department.
Tipo: Text
Palavras-chave: ASPECTOS AMBIENTALES; IMPACTO AMBIENTAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=109460&tab=opac&oai:flacso.org.ec:109460

Universalismo y desarrollo
Provedor de dados: 121
Autores: ed. por L.E.Lander; Heinz R. Sonntag.
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114370&tab=opac&oai:flacso.org.ec:114370

Environmental and resource economics an introduction.
Provedor de dados: 121
Autores: Folmer, Henk.
Tipo: InteractiveResource
Palavras-chave: MEDIO AMBIENTE; RECURSOS ECONOMICOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=7664&tab=opac&oai:flacso.org.ec:7664

Adjustment and equity in Ecuador
Provedor de dados: 121
Autores: Alain de Janvry; Elisabeth Sadoulet; Janvry, Alain de.
Tipo: Text
Palavras-chave: ECUADOR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=109783&tab=opac&oai:flacso.org.ec:109783

Probables efectos de un tratado de libre comercio en el campo mexicano
Provedor de dados: 121
Tipo: Text
Palavras-chave: COMERCIO; LIBRE COMERCIO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=396&tab=opac&oai:flacso.org.ec:396

A history of macroeconometric model-building
Provedor de dados: 121
Autores: Ronald G. Bodkin, Lawrence R. Klein y Kanta Marwah; Bodkin, Ronald G.
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=138364&tab=opac&oai:flacso.org.ec:138364

Elementos constitutivos de la cultura andina
Provedor de dados: 121
Autores: por Rafael Archondo; Archondo, Rafael.
Tipo: InteractiveResource
Palavras-chave: CULTURA; PODER.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=13632&tab=opac&oai:flacso.org.ec:13632

El bolivarianismo en el Ecuador
Provedor de dados: 121
Autores: Enrique Ayala Mora; Ayala Mora, Enrique.
Tipo: Text
Palavras-chave: HISTORIA; ECUADOR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=111558&tab=opac&oai:flacso.org.ec:111558

Un reto y una realidad
Provedor de dados: 121
Tipo: Text
Palavras-chave: ECUADOR; INDUSTRIA PETROLERA; MERCADOS PETROLEROS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=2161&tab=opac&oai:flacso.org.ec:2161

Marvelous possessions the wonder of the new world
Provedor de dados: 121
Autores: Stephen Greenblatt; Greenblatt, Stephen.
Tipo: Text
Palavras-chave: HISTORIA; CONQUISTA; DESCRIPCIONES Y VIAJES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=113894&tab=opac&oai:flacso.org.ec:113894

Heritage of our times
Provedor de dados: 121
Autores: Ernst Bloch; Bloch, Ernst.
Tipo: Text
Palavras-chave: SOCIALISMO; CLASE MEDIA; ALEMANIA; VIDA SOCIAL Y COSTUMBRES; CONDICIONES SOCIALES; SIGLO XX.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=115414&tab=opac&oai:flacso.org.ec:115414

Bases fundamentales para una estrategia de desarrollo social integrado.
Provedor de dados: 121
Tipo: InteractiveResource
Palavras-chave: ECUADOR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=5148&tab=opac&oai:flacso.org.ec:5148

Sobre la libertad
Provedor de dados: 121
Autores: por John Stuart Mill.; Mill, John Stuart.
Tipo: Text
Palavras-chave: LIBERTAD; PENSAMIENTO; INDIVIDUO; SOCIEDAD.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=9562&tab=opac&oai:flacso.org.ec:9562

Ecuador cultura, estado y sociedad
Provedor de dados: 121
Tipo: Text
Palavras-chave: CULTURA; ESTADO; ECUADOR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=6583&tab=opac&oai:flacso.org.ec:6583

People States and fear.
Provedor de dados: 121
Autores: Buzan, Barry.
Tipo: Text
Palavras-chave: SEGURIDAD NACIONAL; RELACIONES INTERNACIONALES; SEGURIDAD INTERNACIONAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=6602&tab=opac&oai:flacso.org.ec:6602

Public choices and policy change the political economy of reform in developing countries
Provedor de dados: 121
Autores: Merilee S. Grindle; John W. Thomas; Grindle, Merilee S.
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=113859&tab=opac&oai:flacso.org.ec:113859

Quito profundo
Provedor de dados: 121
Autores: Jaime Moreno Haro; Moreno Haro, Jaime.
Tipo: Text
Palavras-chave: RESISTENCIA CULTURAL; IDENTIDAD CULTURAL; QUITO; ECUADOR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=112520&tab=opac&oai:flacso.org.ec:112520

Modernity and self-identity self and society in the late modern age
Provedor de dados: 121
Autores: Giddens, Anthony.
Tipo: InteractiveResource
Palavras-chave: MODERNIDAD; YO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=9181&tab=opac&oai:flacso.org.ec:9181

Managing local government public administration in practice
Provedor de dados: 121
Autores: Richard D. Bingham ...[et al.].
Tipo: Text
Palavras-chave: GOBIERNO LOCAL; ESTADOS UNIDOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130704&tab=opac&oai:flacso.org.ec:130704

From dictatorship to democracy rebuilding consensus in Chile
Provedor de dados: 121
Autores: editado por Joseph S. Tulchin; Augusto Varas.
Tipo: Text
Palavras-chave: CHILE; HISTORIA; SIGLO XX; RELACIONES INTERNACIONALES; ESTADOS UNIDOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=102747&tab=opac&oai:flacso.org.ec:102747

Cien impresos coloniales poblanos
Provedor de dados: 121
Tipo: Text
Palavras-chave: LIBROS RAROS; PUEBLA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=102504&tab=opac&oai:flacso.org.ec:102504

From confrontation to cooperation? U.S. and soviet aid to developing countries
Provedor de dados: 121
Autores: Richard E. Feinberg y  Ratchik M. Avakov; Feinberg, Richard E.
Tipo: Text
Palavras-chave: ESTADOS UNIDOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114735&tab=opac&oai:flacso.org.ec:114735

Historia de Loja y su Provincia
Provedor de dados: 121
Tipo: Text
Palavras-chave: HISTORIA; CULTURA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=137680&tab=opac&oai:flacso.org.ec:137680

Global climate change and life on earth
Provedor de dados: 121
Autores: ed. por Richard L. Wyman.
Tipo: Text
Palavras-chave: BIODIVERSIDAD; CALENTAMIENTO GLOBAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=109438&tab=opac&oai:flacso.org.ec:109438

Patterns of dissonance a study of women in contemporary philosophy
Provedor de dados: 121
Autores: Rosi Braidotti; Braidotti, Rosi.
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=109902&tab=opac&oai:flacso.org.ec:109902

Etnohistoria del Amazonas
Provedor de dados: 121
Autores: P. Jorna; L. Malaver y M. Oostra.
Tipo: Text
Palavras-chave: INDIO; RIO AMAZONAS; HISTORIA; ETNOHISTORIA; COSTUMBRES; VIDA SOCIAL Y COSTUMBRES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=140074&tab=opac&oai:flacso.org.ec:140074

The death of Luigi Trastulli memory and the event
Provedor de dados: 121
Autores: por Alessandro Portelli; Portelli, Alessandro.
Tipo: InteractiveResource
Palavras-chave: HISTORIA SOCIAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=13331&tab=opac&oai:flacso.org.ec:13331

When the moon waxes red
Provedor de dados: 121
Autores: Trinh T Minh-Ha; Minh-Ha, Trinh T.
Tipo: Text
Palavras-chave: CINE; FEMINISMO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=137144&tab=opac&oai:flacso.org.ec:137144

El pensamiento indio
Provedor de dados: 121
Autores: por Fausto Reinaga.; Reinaga, Fausto.
Tipo: Text
Palavras-chave: PENSAMIENTO; SOCIEDAD.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=15215&tab=opac&oai:flacso.org.ec:15215

Foundations of program evaluation theories of practice
Provedor de dados: 121
Autores: por William R. Shadish; Thomas D. Cook; Laura C. Leviton.; Shadish, William R.
Tipo: Text
Palavras-chave: PROGRAMAS SOCIALES; SOCIEDAD.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=12124&tab=opac&oai:flacso.org.ec:12124

Tlaxcala en el siglo XVI
Provedor de dados: 121
Autores: Charles Gibson; Gibson, Charles.
Tipo: Text
Palavras-chave: TLAXCALAN; TLAXCALA; HISTORIA; COLONIAS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=116211&tab=opac&oai:flacso.org.ec:116211

Working Papers of the Latin American Program
Provedor de dados: 121
Autores: The Woodrow Wilson International Center.
Tipo: Text
Palavras-chave: DESARROLLO; REGIONALISMO; ESTADOS UNIDOS; DEMOCRACIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=103789&tab=opac&oai:flacso.org.ec:103789

Acting globally indian rights and international politics in Latin America
Provedor de dados: 121
Autores: por Alison Brysk.; Brysk, Alison.
Tipo: InteractiveResource
Palavras-chave: MOVIMIENTOS CAMPESINOS; DERECHO; REFORMA AGRARIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=14535&tab=opac&oai:flacso.org.ec:14535

Quantitative marxism
Provedor de dados: 121
Autores: ed. Paul Dunne.
Tipo: Text
Palavras-chave: MARXISMO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=115988&tab=opac&oai:flacso.org.ec:115988

Sacrificios humanos y sociedad occidental licifer y la bestia
Provedor de dados: 121
Autores: Franz J. Hinkelammert; Hinkelammert , Franz J.
Tipo: Text
Palavras-chave: SACRIFICIO; CRISTIANISMO; BIBLIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=109058&tab=opac&oai:flacso.org.ec:109058

Desarrollo forestal campesino estrategias y pistas de trabajo
Provedor de dados: 121
Tipo: Text
Palavras-chave: SEMINARIO; CAMPESINOS; DESARROLLO RURAL; PROYECTO DE DESARROLLO RURAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=115924&tab=opac&oai:flacso.org.ec:115924

Afterthoughts... a dossier on masculinities indian rights and international politics in Latin America
Provedor de dados: 121
Autores: por Irit Rogoff; David Van Leer.; Rogoff, Irit.
Tipo: InteractiveResource
Palavras-chave: MASCULINIDAD; COMPORTAMIENTO SOCIAL; DERECHO; REFORMA AGRARIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=14827&tab=opac&oai:flacso.org.ec:14827

La tarea acuciante de desarrollo informe sobre el desarrollo mundial 1991.
Provedor de dados: 121
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=200&tab=opac&oai:flacso.org.ec:200

'Oueili, travaux de 1985.
Provedor de dados: 121
Autores: Huot, Jean-Louis.
Tipo: Text
Palavras-chave: ARQUITECTURA; VIVIENDAS; CULTURA; ORIENTE MEDIO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=8070&tab=opac&oai:flacso.org.ec:8070

The new encyclopaedia Britannica macropedia : knowledge in depth
Provedor de dados: 121
Tipo: Text
Palavras-chave: ENCICLOPEDIA; MATERIAL DE REFERENCIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=136800&tab=opac&oai:flacso.org.ec:136800

Introduction history, memory and the family album
Provedor de dados: 121
Autores: por Patricia Holland.; Holland, Patricia.
Tipo: InteractiveResource
Palavras-chave: HISTORIA SOCIAL; FOTOGRAFIAS; FAMILIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=13322&tab=opac&oai:flacso.org.ec:13322

Los momentos y sus hombres textos seleccionados y presentados por Yves Winkin.
Provedor de dados: 121
Autores: Goffman, Erving.
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=11398&tab=opac&oai:flacso.org.ec:11398

Development without poverty
Provedor de dados: 121
Tipo: Text
Palavras-chave: POBREZA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=116091&tab=opac&oai:flacso.org.ec:116091

Cuenca ciudad prehispana . significado y forma
Provedor de dados: 121
Tipo: Text
Palavras-chave: CUENCA-HISTORIA; URBANISMO; INDIOS DEL ECUADOR; CIUDADES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=1698&tab=opac&oai:flacso.org.ec:1698

The subsidy from nature palm forests, peasantry, and development on an Amazon frontier
Provedor de dados: 121
Autores: Anthony B. Anderson ...[et al.]; Anderson, Anthony B., 1950.
Tipo: Text
Palavras-chave: BABASSU; BRASIL; CAMPESINADO; BOSQUES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=5078&tab=opac&oai:flacso.org.ec:5078

Empleo y equidad el desafio de los 90
Provedor de dados: 121
Tipo: Text
Palavras-chave: EMPLEO; MERCADO DE TRABAJO; CRISIS; INGRESOS; SECTOR INFORMAL; ZONAS URBANAS; COSTOS; GASTO SOCIAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=14770&tab=opac&oai:flacso.org.ec:14770

Regression analysis by example
Provedor de dados: 121
Autores: Samprit Chatterjee; Chatterjee, Samprit.
Tipo: Text
Palavras-chave: MATEMATICAS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=102506&tab=opac&oai:flacso.org.ec:102506

El menor ante la ley
Provedor de dados: 121
Autores: ed. por Alberto Wray.
Tipo: Text
Palavras-chave: DERECHO; ECUADOR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114764&tab=opac&oai:flacso.org.ec:114764

Ecological economics the science and management of sustainability
Provedor de dados: 121
Autores: ed. por Robert Costanza.
Tipo: Text
Palavras-chave: DESARROLLO SUSTENTABLE.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=127236&tab=opac&oai:flacso.org.ec:127236

The golden age of capitalism reinterpreting the postwar experience
Provedor de dados: 121
Autores: ed. por A. Marglin Stephen; Juliet B. Schor.
Tipo: Text
Palavras-chave: CAPITALISMO; EMPLEO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=14619&tab=opac&oai:flacso.org.ec:14619

Nation-states and indians in Latin America
Provedor de dados: 121
Autores: ed. por Greg Urban; Joel Sherzer.
Tipo: Text
Palavras-chave: INDIOS; NACIONALISMO; RELACIONES GUBERNAMENTALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=115214&tab=opac&oai:flacso.org.ec:115214

What happened when a chronology of life and events in America
Provedor de dados: 121
Autores: Gorton Carruth; Carruth, Gorton.
Tipo: Text
Palavras-chave: HISTORIA ESTADOUNIDENSE; HISTORIA NACIONAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=136080&tab=opac&oai:flacso.org.ec:136080

Ecuador la democracia esquiva
Provedor de dados: 121
Tipo: Text
Palavras-chave: ECUADOR; DEMOCRACIA; CONDICIONES SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=1831&tab=opac&oai:flacso.org.ec:1831

A biological assessment of the Alto Madidi Region and adjacents areas of northeweast Bolivia
Provedor de dados: 121
Tipo: Text
Palavras-chave: GEOGRAFIA; BOLIVIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=17621&tab=opac&oai:flacso.org.ec:17621

Modernidad y universalismo
Provedor de dados: 121
Autores: ed. por Edgardo Lander.
Tipo: Text
Palavras-chave: CIENCIAS SOCIALES; MODERNIDAD.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114340&tab=opac&oai:flacso.org.ec:114340

An inquiry to the human prospect looked again for the 1990s
Provedor de dados: 121
Autores: Robert L. Heilbroner; Heilbroner, Robert L.
Tipo: Text
Palavras-chave: DERECHOS HUMANOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=116266&tab=opac&oai:flacso.org.ec:116266

Maquita cushunchic
Provedor de dados: 121
Autores: por Maquita Cushunchic; Maquita Cushunchic.
Tipo: Text
Palavras-chave: COMERCIO JUSTO; DESARROLLO RURAL; ECUADOR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=119402&tab=opac&oai:flacso.org.ec:119402

Iniciativa para los americanos una propuesta controvertida
Provedor de dados: 121
Autores: Alberto Dahik; SELA.
Tipo: Text
Palavras-chave: ESTADOS UNIDOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=790&tab=opac&oai:flacso.org.ec:790

Historia de la mujer y la familia
Provedor de dados: 121
Tipo: Text
Palavras-chave: MUJERES; HISTORIA; CINE; ROL DE LA MUJER.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=11039&tab=opac&oai:flacso.org.ec:11039

Utopias del renacimiento
Provedor de dados: 121
Autores: editado por Eugenio Imaz.
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=101150&tab=opac&oai:flacso.org.ec:101150

Urban policy and economic development an agenda for the 1990s
Provedor de dados: 121
Autores: por The Word Bank; The World Bank.
Tipo: Text
Palavras-chave: POLICIA URBANA; CRECIMIENTO DEMOGRAFICO; PRODUCTIVIDADMEDIO AMBEINTE; POBREZA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=15966&tab=opac&oai:flacso.org.ec:15966

Mexican migration and the social space of postmodernism.
Provedor de dados: 121
Autores: Rouse, Roger.
Tipo: InteractiveResource
Palavras-chave: ESTADOS UNIDOS; POSMODERNISMO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=8897&tab=opac&oai:flacso.org.ec:8897

Women and survival in Mexican cities perspectives on gender, labour markets, and low-incomes households
Provedor de dados: 121
Autores: Sylvia H. Chant; Chant, Sylvia H.
Tipo: Text
Palavras-chave: MUJERES TRABAJADORAS; MUJERES URBANAS; MUJERES RURALES; MUJERES POBRES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=100361&tab=opac&oai:flacso.org.ec:100361

Women of the praia work and lives in a portuguese coastal community
Provedor de dados: 121
Autores: Sally Cole; Cole, Sally.
Tipo: Text
Palavras-chave: MUJERES TRABAJADORAS; PESCA; COSTA; PORTUGAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=136345&tab=opac&oai:flacso.org.ec:136345

The colonizer and the colonized
Provedor de dados: 121
Autores: Albert Memmi; Memmi, Albert.
Tipo: Text
Palavras-chave: COLONIALISMO; COLONIAS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=132178&tab=opac&oai:flacso.org.ec:132178

Publicidad y democracia en la sociedad de masas
Provedor de dados: 121
Autores: Terence H. Qualter; Qualter, Terence H.
Tipo: Text
Palavras-chave: PUBLICIDAD; DEMOCRACIA; ESTADOS UNIDOS; SIGLO XX.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=126769&tab=opac&oai:flacso.org.ec:126769

Cuadernos del Austro
Provedor de dados: 121
Autores: Instituto Latinoamericano de Ciencias Sociales.
Tipo: Text
Palavras-chave: DESARROLLO AGROINDUSTRIAL; EMPLEO; MAQUILA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=104814&tab=opac&oai:flacso.org.ec:104814

Supply and marketing constraints on Latin American manufacturing exports
Provedor de dados: 121
Autores: ed. por Schwartz, Hugh H.
Tipo: Text
Palavras-chave: INDUSTRIAS; MANUFACTURAS; FOMENTO INDUSTRIAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114737&tab=opac&oai:flacso.org.ec:114737

Los protectores de naturales en la Audiencia de Quito Siglos XVII y XVIII.
Provedor de dados: 121
Tipo: Text
Palavras-chave: HISTORIA; COLONIAS; DERECHOS; INDIOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=8688&tab=opac&oai:flacso.org.ec:8688

Plan Distrito Metropolitano
Provedor de dados: 121
Tipo: Text
Palavras-chave: URBANISMO; GOBIERNO LOCAL; MEDIO AMBIENTE; HISTORIA; ARQUITECTURA; QUITO; ECUADOR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=103597&tab=opac&oai:flacso.org.ec:103597

Comentarios reales de los Incas
Provedor de dados: 121
Autores: Garcilaso de la Vega, Inca.
Tipo: Text
Palavras-chave: DESCUBRIMIENTO; CONQUISTA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=101197&tab=opac&oai:flacso.org.ec:101197

Cabeza de Gallo
Provedor de dados: 121
Tipo: Text
Palavras-chave: UNIVERSIDADES; MEDIO AMBIENTE; ENFERMEDADES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=104718&tab=opac&oai:flacso.org.ec:104718

Cultura de consumo y posmodernismo
Provedor de dados: 121
Autores: por Mike Featherstone.; Featherstone, Mike.
Tipo: Text
Palavras-chave: CULTURA POPULAR; CONSUMIDORES; MODERNIDAD; POSMODERNISMO; SIGLO XX; CONSUMO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=12212&tab=opac&oai:flacso.org.ec:12212

DEA the war against drugs. Accompanies the major tv series
Provedor de dados: 121
Tipo: Text
Palavras-chave: CONTROL DE DROGAS; CONSUMO; ESTADOS UNIDOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130782&tab=opac&oai:flacso.org.ec:130782

Latin America tradition and change
Provedor de dados: 121
Autores: Dorothy Hoobler y Thomas Hoobler; Hoobler, Dorothy.
Tipo: Text
Palavras-chave: HISTORIA; BRASIL; CONO SUR; ANDES; CARIBE.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=111374&tab=opac&oai:flacso.org.ec:111374

The new institutionalism in organizational analysis
Provedor de dados: 121
Autores: ed. por Walter W. Powell  y  Paul J. DiMaggio.
Tipo: Text
Palavras-chave: COMPORTAMIENTO ORGANIZACIONAL; TRABAJO EN GRUPOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=131523&tab=opac&oai:flacso.org.ec:131523

Jano y Minerva: ensayos sobre la guerra y la paz
Provedor de dados: 121
Autores: Stanley Hoffmann; Haffmann, Stanley.
Tipo: Text
Palavras-chave: RELACIONES INTERNACIONALES; GUERRA; PAZ; ESTADOS UNIDOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=108668&tab=opac&oai:flacso.org.ec:108668

El manejo de la deuda externa de Colombia.
Provedor de dados: 121
Autores: por Luis Jorge Garay S.; Garay S., Luis Jorge.
Tipo: Text
Palavras-chave: SISTEMA FINANCIERO INTERNACIONAL; DEUDA EXTERNA; COLOMBIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=14281&tab=opac&oai:flacso.org.ec:14281

Domingo Faustino Sarmiento
Provedor de dados: 121
Autores: Victoria Galvani; Galvani, Victoria.
Tipo: Text
Palavras-chave: HISTORIA; SIGLO XIX; ARGENTINA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=116233&tab=opac&oai:flacso.org.ec:116233

Population and the environment the vital linkages.
Provedor de dados: 121
Autores: Myers, Norman.
Tipo: InteractiveResource
Palavras-chave: MEDIO AMBIENTE; DESARROLLO SUSTENTABLE.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=9842&tab=opac&oai:flacso.org.ec:9842

La informalidad funcional el caso de la industria de la vestimenta
Provedor de dados: 121
Tipo: Text
Palavras-chave: INFORMALIDAD; TRABAJO; INDUSTRIA DEL VESTUARIO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=406&tab=opac&oai:flacso.org.ec:406

New directions in conflict theory conflict resolution and conflict transformation
Provedor de dados: 121
Tipo: Text
Palavras-chave: CONFLICTOS; MANEJO DE CONFLICTOS; RELACIONES INTERNACIONALES; CONFLICTOS INTERNACIONALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=126622&tab=opac&oai:flacso.org.ec:126622

The reform of public sector management lessons from experience
Provedor de dados: 121
Tipo: Text
Palavras-chave: BANCO MUNDIAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=2995&tab=opac&oai:flacso.org.ec:2995

Multilateralism in NATO Shaping the Postwar Balance of pewer, 1945-1961.
Provedor de dados: 121
Autores: Weber, Steven, 1961-.
Tipo: Text
Palavras-chave: OTAN; RELACIONES INTERNACIONALES; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=6380&tab=opac&oai:flacso.org.ec:6380

Santander y los ingleses, 1832-1840
Provedor de dados: 121
Autores: compilado por Malcolm Deas.
Tipo: Text
Palavras-chave: COLOMBIA; INGLATERRA; GOBIERNO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=100980&tab=opac&oai:flacso.org.ec:100980

Obras selectas
Provedor de dados: 121
Tipo: Text
Palavras-chave: ECUADOR; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=140062&tab=opac&oai:flacso.org.ec:140062

Good faith and truthful ignorance a case of transatlantic bigamy
Provedor de dados: 121
Autores: Alexandra Parma Cook y Noble David Cook; Cook, Alexandra Parma.
Tipo: Text
Palavras-chave: BIGAMIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=136268&tab=opac&oai:flacso.org.ec:136268

Cuidar la tierra estrategia para el futuro de la vida
Provedor de dados: 121
Autores: UICN; PNUMA; WWF.
Tipo: Text
Palavras-chave: DESARROLLO SOSTENIBLE; DESARROLLO LOCAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=101324&tab=opac&oai:flacso.org.ec:101324

Les Incas, ou la destruction de l'empere du Perou
Provedor de dados: 121
Autores: J.F. Marmontel; Marmontel, J.F.
Tipo: Text
Palavras-chave: IMPERIO INCA; CONQUISTA; SIGLO XIV; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=115099&tab=opac&oai:flacso.org.ec:115099

The economic approach to politics a critical reassessment of the theory of rational action
Provedor de dados: 121
Autores: ed. por Kristen Renwick Monroe.
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130712&tab=opac&oai:flacso.org.ec:130712

Colombia hoy
Provedor de dados: 121
Autores: Mario Arrubla ...[et al.]; Arrubla, Mario.
Tipo: Text
Palavras-chave: HISTORIA; COLOMBIA; INDUSTRIAS; DESARROLLO; LITERATURA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=5103&tab=opac&oai:flacso.org.ec:5103

El discurso disidente ensayos de literatura colonial peruana
Provedor de dados: 121
Tipo: Text
Palavras-chave: LITERATURA PERUANA; 1800.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=111162&tab=opac&oai:flacso.org.ec:111162

Allpa mamata camai mushuc causaipac sumac yuyaicuna
Provedor de dados: 121
Autores: Programa de las Naciones Unidas para el Medio Ambiente; Fondo Mundial para la Naturaleza.
Tipo: Text
Palavras-chave: DESARROLLO SOSTENIBLE; DESARROLLO LOCAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=109322&tab=opac&oai:flacso.org.ec:109322

Etnohistoria del Amazonas
Provedor de dados: 121
Autores: P. Jorna; L. Malaver y M. Oostra.
Tipo: Text
Palavras-chave: INDIO; RIO AMAZONAS; HISTORIA; ETNOHISTORIA; COSTUMBRES; VIDA SOCIAL Y COSTUMBRES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=17440&tab=opac&oai:flacso.org.ec:17440

The nature of fascism
Provedor de dados: 121
Autores: Roger Griffin; Griffin, Roger.
Tipo: Text
Palavras-chave: FASCISMO; HISTORIA; ITALIA; ALEMANIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=112437&tab=opac&oai:flacso.org.ec:112437

Beyond metaphor the theory of tropes in anthropology
Provedor de dados: 121
Autores: ed. James W. Fernandez.
Tipo: Text
Palavras-chave: CULTURA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=115986&tab=opac&oai:flacso.org.ec:115986

Government, evaluation and change
Provedor de dados: 121
Autores: Henkel, Mary; Henkel, Mary.
Tipo: Text
Palavras-chave: SERVICIOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130827&tab=opac&oai:flacso.org.ec:130827

Literatura popular versos dichos de Tungurahua
Provedor de dados: 121
Autores: Julio Pazos; Pazos, Julio.
Tipo: Text
Palavras-chave: CULTURA POPULAR; TUNGURAHUA; ECUADOR; FOLKLORE.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=115379&tab=opac&oai:flacso.org.ec:115379

Agenda setting readings on media, public opinion, and policymaking
Provedor de dados: 121
Autores: ed. por David L. Protess y  Maxwell McCombs.
Tipo: Text
Palavras-chave: PERIODISMO; ESTADOS UNIDOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=131521&tab=opac&oai:flacso.org.ec:131521

El Imperio de los incas
Provedor de dados: 121
Tipo: InteractiveResource
Palavras-chave: IMPERIALISMO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=11704&tab=opac&oai:flacso.org.ec:11704

Plan de desarrollo cultural ecuatoriano, a mediano plazo (1991-2000)
Provedor de dados: 121
Autores: Consejo Nacional de Cultura.
Tipo: Text
Palavras-chave: CULTURA; DESARROLLO CULTURAL; PROGRAMAS CULTURALES; PATRIMONIO CULTURAL; ECUADOR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130079&tab=opac&oai:flacso.org.ec:130079

The Foucault effect studies in governmentalit : with two lectures by and interview with Michel Foucault
Provedor de dados: 121
Autores: editado por Graham Burchell, Colin Gordon y Peter Miller.
Tipo: Text
Palavras-chave: ESTADO; GOBERNABILIDAD.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=9191&tab=opac&oai:flacso.org.ec:9191

Signos de futuro la cultura ecuatoriana en los 80
Provedor de dados: 121
Tipo: Text
Palavras-chave: CULTURA; ARTE; HISTORIA; SIGLO XX; ECUADOR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114750&tab=opac&oai:flacso.org.ec:114750

Long-Wave rhythms in economic development and political behavior
Provedor de dados: 121
Autores: por Brian J. L. Berry; Berry, Brian J. L.
Tipo: Text
Palavras-chave: LIDERAZGO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130859&tab=opac&oai:flacso.org.ec:130859

Social security in developing countries
Provedor de dados: 121
Autores: ed. por Ehtisham Ahmad ... [et al.].
Tipo: Text
Palavras-chave: SEGURIDAD SOCIAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=132094&tab=opac&oai:flacso.org.ec:132094

Comparaing political systems power and policy in the worlds
Provedor de dados: 121
Autores: Gary K. Bertsh; Robert P. Clark; David M. Wood; Bertsch, Gary K.
Tipo: Text
Palavras-chave: GOBIERNO COMPARADO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130695&tab=opac&oai:flacso.org.ec:130695

Culture as the ideological battleground of the modern world-system
Provedor de dados: 121
Autores: Wallerstein, Immanuel.
Tipo: InteractiveResource
Palavras-chave: CULTURA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=8891&tab=opac&oai:flacso.org.ec:8891

Who comes after the subject?
Provedor de dados: 121
Autores: Editado por Eduardo Cadava, Peter Connor y Jean-Luc Nancy.
Tipo: Text
Palavras-chave: CONCIENCIA; CONOCIMIENTO; SUJETO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=139878&tab=opac&oai:flacso.org.ec:139878

Staff Papers
Provedor de dados: 121
Tipo: Text
Palavras-chave: ESTADOS UNIDOS; MEDIO AMBIENTE; DEMANDAS; IMPACTO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=104852&tab=opac&oai:flacso.org.ec:104852

Cuba and the United States will the Cold War in the Caribbean end?
Provedor de dados: 121
Autores: editado por Joseph S. Tulchin.
Tipo: Text
Palavras-chave: RELACIONES INTERNACIONALES; CUBA; ESTADOS UNIDOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=102751&tab=opac&oai:flacso.org.ec:102751

Consideraciones sobre el gobierno representativo
Provedor de dados: 121
Autores: John Stuart Mill; Mill, John Stuart.
Tipo: Text
Palavras-chave: GOBIERNO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=100792&tab=opac&oai:flacso.org.ec:100792

Memoria
Provedor de dados: 121
Tipo: Text
Palavras-chave: FECUNDIDAD; EL CARIBE; ADOLESCENTES; CONTROL DE LA NATALIDAD; MUJERES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=662&tab=opac&oai:flacso.org.ec:662

Direito ambiental e a questao amazonica
Provedor de dados: 121
Autores: organizado por Maria Cristina Dourado.
Tipo: Text
Palavras-chave: DERECHO AMBIENTAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=101567&tab=opac&oai:flacso.org.ec:101567

Goals, principles and constraints in environmental policies
Provedor de dados: 121
Autores: Zylicz, Tomasz.
Tipo: InteractiveResource
Palavras-chave: MEDIO AMBIENTE.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=7672&tab=opac&oai:flacso.org.ec:7672

Economic adjustement under the Sandinistas policy reform, food security and livelihood in Nicaragua
Provedor de dados: 121
Autores: Peter Utting; Utting, Peter.
Tipo: Text
Palavras-chave: NICARAGUA; ABASTECIMIENTO DE ALIMENTOS; CAMPESINOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=111194&tab=opac&oai:flacso.org.ec:111194

El retorno a la democracia
Provedor de dados: 121
Autores: por Juan Carlos Casas.; Casas, Juan Carlos.
Tipo: InteractiveResource
Palavras-chave: DEMOCRACIA; SISTEMA DE GOBIERNO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=13528&tab=opac&oai:flacso.org.ec:13528

Planning and management for exellences and efficiency of higher education
Provedor de dados: 121
Autores: International Congress on Planning and Management of Educational Development.
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114357&tab=opac&oai:flacso.org.ec:114357

Women and food security the experience of the SADCC countries
Provedor de dados: 121
Autores: Carr, Marilyn.
Tipo: Text
Palavras-chave: MUJERES; SEGURIDAD ALIMENTARIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=11597&tab=opac&oai:flacso.org.ec:11597

The courage to write women novelists of 19th-century Europe. A guide for readers
Provedor de dados: 121
Autores: Emily Auerbach; Auerbach, Emily.
Tipo: Text
Palavras-chave: ESCRITURA MANUSCRITA; ARTE.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=132002&tab=opac&oai:flacso.org.ec:132002

Quality at the front line
Provedor de dados: 121
Autores: Lucy Gaster; Gaster, Lucy.
Tipo: Text
Palavras-chave: GOBIERNO LOCAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=131559&tab=opac&oai:flacso.org.ec:131559

The narrative construction of reality
Provedor de dados: 121
Autores: Bramer, Jerome.
Tipo: InteractiveResource
Palavras-chave: REALISMO; RELACIONES INTERNACIONALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=11836&tab=opac&oai:flacso.org.ec:11836

Todos los fuegos el fuego
Provedor de dados: 121
Tipo: Text
Palavras-chave: LITERATURA ARGENTINA; CUENTOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=116287&tab=opac&oai:flacso.org.ec:116287

Escritos sobre historia
Provedor de dados: 121
Tipo: Text
Palavras-chave: HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=343&tab=opac&oai:flacso.org.ec:343

Marxist historiography in transformation east German social history in the 190's
Provedor de dados: 121
Autores: ed. por Georg Iggers.
Tipo: Text
Palavras-chave: HISTORIA SOCIAL; MARXISMO; ALEMANIA; SIGLO XX.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114354&tab=opac&oai:flacso.org.ec:114354

Nations and governments comparative politics in regional perspective
Provedor de dados: 121
Autores: Thomas M. Magstadt; Magstadt, Thomas M.
Tipo: Text
Palavras-chave: GOBIERNOS COMPARADOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=115418&tab=opac&oai:flacso.org.ec:115418

Comunidad alcaldes y recursos fiscales
Provedor de dados: 121
Tipo: Text
Palavras-chave: GOBIERNO LOCAL; ALCALDES; ELECCIONES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=1091&tab=opac&oai:flacso.org.ec:1091

IDA Working Papers
Provedor de dados: 121
Autores: Institute for Development Anthropology.
Tipo: Text
Palavras-chave: AGRICULTURA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=105098&tab=opac&oai:flacso.org.ec:105098

Pensar la historia modernidad, presente, progreso
Provedor de dados: 121
Autores: Jacques Le Goff; Le Goff, Jacques, 1949.
Tipo: Text
Palavras-chave: HISTORIA; CULTURA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=8989&tab=opac&oai:flacso.org.ec:8989

Religion in the Andes vision and imagination in early colonial Peru
Provedor de dados: 121
Autores: Sabine MacCormack; MacCormack, Sabine.
Tipo: Text
Palavras-chave: INCAS; HISTORIA; CONQUISTA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=101383&tab=opac&oai:flacso.org.ec:101383

Los normales el laicismo, el normalismo los normales.
Provedor de dados: 121
Tipo: InteractiveResource
Palavras-chave: ECUADOR; LAICISMO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=7592&tab=opac&oai:flacso.org.ec:7592

Between two islands dominican international migration
Provedor de dados: 121
Autores: por Sherri Grasmuck; Patricia R. Pessar.; Grasmuck, Sherri.
Tipo: Text
Palavras-chave: ESTADOS UNIDOS; DOMINICANOS; CONDICIONES SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=12526&tab=opac&oai:flacso.org.ec:12526

Amancebados, hechiceros y rebeldes Chancay, siglo XVII
Provedor de dados: 121
Tipo: Text
Palavras-chave: HISTORIA; LIMA; VIDA SOCIAL Y COSTUMBRES; DESEMPLEO; ECUADOR; SIGLO XVII; ASPECTOS SOCIALES; HISTORIA SOCIAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114860&tab=opac&oai:flacso.org.ec:114860

The greek Polis and the creation of democracy
Provedor de dados: 121
Autores: por Cornelius Castoriadis; Castoriadis, Cornelius.
Tipo: InteractiveResource
Palavras-chave: DEMOCRACIA; PENSADORES POLITICOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=14729&tab=opac&oai:flacso.org.ec:14729

Jano y minerva ensayos sobre la guerra y la paz
Provedor de dados: 121
Tipo: Text
Palavras-chave: PAZ; GUERRA; DESARME; SEGURIDAD NACIONAL; VIOLENCIA; RELACIONES INTERNACIONALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=1351&tab=opac&oai:flacso.org.ec:1351

Cyberspace first steps
Provedor de dados: 121
Autores: ed. por Michael Benedikt; *.
Tipo: Text
Palavras-chave: CIBERESPACIO; INTELIGENCIA ARTIFICIAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=123022&tab=opac&oai:flacso.org.ec:123022

The politics of culture
Provedor de dados: 121
Autores: ed. por Brett Williams.
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114189&tab=opac&oai:flacso.org.ec:114189

Conceptos del periodismo norte y sur
Provedor de dados: 121
Autores: Michael Kunczik; Kunczik, Michael.
Tipo: Text
Palavras-chave: PERIODISMO; SOCIEDAD; SOCIALISMO; NOTICIAS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=122800&tab=opac&oai:flacso.org.ec:122800

Sobre la libertad
Provedor de dados: 121
Autores: por John Stuart Mill.; Mill, John Stuart.
Tipo: Text
Palavras-chave: LIBERTAD; PENSAMIENTO; INDIVIDUO; SOCIEDAD.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=102766&tab=opac&oai:flacso.org.ec:102766

The social survey in historical perespective 1880-1940
Provedor de dados: 121
Autores: ed. por Martin Bulmer; Kevin Bales; Kathryn Kish Sklar.
Tipo: Text
Palavras-chave: CIENCIAS SOCIALES; ENCUESTAS; HISTORIA; ESTADOS UNIDOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130814&tab=opac&oai:flacso.org.ec:130814

La ciencia mexicana en la crisis
Provedor de dados: 121
Autores: Mauricio Schoijet; Schoijet, Mauricio.
Tipo: Text
Palavras-chave: CIENCIA; ESTADO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=100532&tab=opac&oai:flacso.org.ec:100532

Women and the world economic crisis
Provedor de dados: 121
Autores: Vickers, Jeanne.
Tipo: Text
Palavras-chave: MUJERES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=11598&tab=opac&oai:flacso.org.ec:11598

Memoria
Provedor de dados: 121
Tipo: Text
Palavras-chave: ECUADOR; COLOMBIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=3594&tab=opac&oai:flacso.org.ec:3594

Privatization and control of state-owned enterprises
Provedor de dados: 121
Autores: ed. por Ravi Ramamurti; Raymond Vernon.
Tipo: Text
Palavras-chave: EMPRESAS; ESTUDIOS DE CASOS; INDUSTRIA TEXTIL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=14766&tab=opac&oai:flacso.org.ec:14766

Estudios gramaticales de la lengua pez (Nasa Yuwe)
Provedor de dados: 121
Autores: coord. por Tulio Rojas Curieux.
Tipo: Text
Palavras-chave: LENGUA PEZ; NASA YUWE; COLOMBIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=124173&tab=opac&oai:flacso.org.ec:124173

Estado mundial de la infancia
Provedor de dados: 121
Autores: Fondo de las Naciones Unidas para la Infancia (UNICEF); Fondo de las Naciones Unidas para la Infancia (UNICEF).
Tipo: Text
Palavras-chave: AYUDA A LA INFANCIA; POBREZA; CONFLICTOS; HUERFANOS; DESPLAZADOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=16721&tab=opac&oai:flacso.org.ec:16721

Revista Latinoamericana de Ciencias Sociales
Provedor de dados: 121
Autores: Flacso - Ecuador.
Tipo: Text
Palavras-chave: CIENCIAS SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=101973&tab=opac&oai:flacso.org.ec:101973

Common birds of the Guayas province = Aves comunes de la Provincia del Guayas
Provedor de dados: 121
Autores: Juan Carlos Matheus; Matheus, Juan Carlos.
Tipo: Text
Palavras-chave: AVES; ECUADOR; GUAYAS; ECOTURISMO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=107947&tab=opac&oai:flacso.org.ec:107947

Quito tradiciones, testimonio y nostalgia
Provedor de dados: 121
Autores: comp. por Edgar Freire Rubio.
Tipo: Text
Palavras-chave: COSTUMBRES Y TRADICIONES; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=138950&tab=opac&oai:flacso.org.ec:138950

The United Nations in development reform issnes in the economic and social fields a nordic perspective, fenal report by the Nordic UN project.
Provedor de dados: 121
Autores: Nordic UN Project.
Tipo: Text
Palavras-chave: DESARROLLO; PROYECTOS DE DESARROLLO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=5924&tab=opac&oai:flacso.org.ec:5924

Institutional and legal aspects of the environment in Latin America, indreding the participation of mangovernamental organizations in environmental management.
Provedor de dados: 121
Tipo: Text
Palavras-chave: ORGANIZACIONES NO GUBERNAMENTALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=5200&tab=opac&oai:flacso.org.ec:5200

Crisis, democracia y sindicalismo en Bolivia 1978-1989
Provedor de dados: 121
Tipo: InteractiveResource
Palavras-chave: SINDICALISMO; CRISIS; DEMOCRACIA; BOLIVIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=13635&tab=opac&oai:flacso.org.ec:13635

El territorialismo latinoamericano en el derecho internacional del mar
Provedor de dados: 121
Autores: Claude Lara Brozzesi; Lara Brozzesi, Claude.
Tipo: Text
Palavras-chave: DERECHO DEL MAR; DERECHO INTERNACIONAL; AGUAS TERRITORIALES; RECURSOS MARINOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=107793&tab=opac&oai:flacso.org.ec:107793

Textos
Provedor de dados: 121
Autores: Centro de Investigaciones Ciudad.
Tipo: Text
Palavras-chave: ECUADOR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=104973&tab=opac&oai:flacso.org.ec:104973

The new modern sociology readings.
Provedor de dados: 121
Autores: Worsley, Peter, ed.
Tipo: Text
Palavras-chave: DESARROLLO; CLASES SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=6695&tab=opac&oai:flacso.org.ec:6695

La muerte una lectura cultural
Provedor de dados: 121
Autores: Louis-Vincent Thomas; Thomas, Louis-Vincent.
Tipo: Text
Palavras-chave: MUERTE; RITOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=105073&tab=opac&oai:flacso.org.ec:105073

Turning to the NGOs competing conceptions of civil society and NGOs in Latin American.
Provedor de dados: 121
Autores: Macdonald, Laura.
Tipo: InteractiveResource
Palavras-chave: ORGANIZACIONES NO GUBERNAMENTALES; SOCIEDAD.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=8879&tab=opac&oai:flacso.org.ec:8879

Reforming urban land policies and institutions in developing countries
Provedor de dados: 121
Autores: Catherine Farvacque; Patrick McAustan.; Farvacque, Catherine.
Tipo: InteractiveResource
Palavras-chave: URBANISMO; REFORMA AGRARIA; ACCESO A LA TIERRA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=7224&tab=opac&oai:flacso.org.ec:7224

Cartas de cabildos hispanoamericanos audiencia de Quito (siglos XVI - XIX)
Provedor de dados: 121
Autores: Agueda Rivera Garrido.
Tipo: Text
Palavras-chave: HISTORIA; ECUADOR; COLONIA; CARTAS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=111643&tab=opac&oai:flacso.org.ec:111643

The constitution of poverty toward a genealogy of liberal governance
Provedor de dados: 121
Autores: Mitchell Dean; Dean, Mitchell.
Tipo: Text
Palavras-chave: POBREZA; BIENESTAR SOCIAL; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=131520&tab=opac&oai:flacso.org.ec:131520

Italian feminist thought a reader
Provedor de dados: 121
Autores: ed. por Paolo Bono; Sandra Kemp.
Tipo: Text
Palavras-chave: FEMINSMO; ITALIA; DERECHOS DE LAS MUJERES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=123951&tab=opac&oai:flacso.org.ec:123951

Technoculture
Provedor de dados: 121
Autores: ed. Constance Penley; Andrew Ross.
Tipo: Text
Palavras-chave: ASPECTOS SOCIALES; CULTURA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=123118&tab=opac&oai:flacso.org.ec:123118

Producir la ciudad (popular) de los '90 entre el mercado y el estado.
Provedor de dados: 121
Tipo: Text
Palavras-chave: VIVIENDA BARATA; BARRIOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=6878&tab=opac&oai:flacso.org.ec:6878

Culture and society a sociology of culture
Provedor de dados: 121
Autores: Rosamund Billington ... [et al.]; Billington, Rosamund.
Tipo: Text
Palavras-chave: CULTURA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=9962&tab=opac&oai:flacso.org.ec:9962

Handbook of latin american studies N. 51.   social sciences.
Provedor de dados: 121
Tipo: Text
Palavras-chave: CIENCIAS SOCIALES; ENCICLOPEDIAS; MANUALES; BIBLIOGRAFIAS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=7418&tab=opac&oai:flacso.org.ec:7418

Language in the news discourse and ideology in the press
Provedor de dados: 121
Autores: Roger Fowler; Fowler, Roger.
Tipo: Text
Palavras-chave: PRENSA ESCRITA; LENGUAJE; LENGUA INGLESA; ASPECTOS SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130706&tab=opac&oai:flacso.org.ec:130706

Economics.
Provedor de dados: 121
Autores: por David Begg; Stanley Fischer; Rudiger Dornbusch.; Begg, David.
Tipo: InteractiveResource
Palavras-chave: DEMANDA; MONOPOLIOS; MERCADO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=13718&tab=opac&oai:flacso.org.ec:13718

1991 Britannica book of the year
Provedor de dados: 121
Tipo: Text
Palavras-chave: ENCICLOPEDIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=137792&tab=opac&oai:flacso.org.ec:137792

Regulatory choices a perspective on developments in energy policy
Provedor de dados: 121
Autores: ed. por Richard J. Gilbert.
Tipo: Text
Palavras-chave: ESTADOS UNIDOS; GAS NATURAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=108378&tab=opac&oai:flacso.org.ec:108378

Race, nation, class ambiguous identities
Provedor de dados: 121
Autores: Etienne Balibar; Immanuel Wallerstein.
Tipo: Text
Palavras-chave: RACISMO; NACIONALISMO; CLASES SOCIALES; CONFLICTOS SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=5121&tab=opac&oai:flacso.org.ec:5121

De sexo, amor y soledad
Provedor de dados: 121
Autores: David Andrade Aguirre; Andrade Aguirre, David.
Tipo: Text
Palavras-chave: LITERATURA ECUATORIANA; NOVELA ECUATORIANA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=139582&tab=opac&oai:flacso.org.ec:139582

El rostro indio de Dios.
Provedor de dados: 121
Autores: Marzal, Manuel M., coord.
Tipo: Text
Palavras-chave: CULTURA; RITOS; CRISTIANISMO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=10431&tab=opac&oai:flacso.org.ec:10431

Pasado y presente de la violencia en Colombia
Provedor de dados: 121
Tipo: Text
Palavras-chave: VIOLENCIA; COLOMBIA; HISTORIA; SIGLO XIX.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=100575&tab=opac&oai:flacso.org.ec:100575

Cartas de Italia.
Provedor de dados: 121
Tipo: Text
Palavras-chave: ENSAYO PERUANO; SOCIALISMO; ITALIA; SOCIEDAD.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=5813&tab=opac&oai:flacso.org.ec:5813

Colombia. Informe nacional para CNUMAD 1992.
Provedor de dados: 121
Autores: Conferencia de Naciones Unidas sobre el Medio Ambiente y el Desarrollo.
Tipo: Text
Palavras-chave: DESARROLLO SUSTENTABLE; COLOMBIA; BIODIVERSIDAD.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=5337&tab=opac&oai:flacso.org.ec:5337

Estado y sociedad civil conjugando esfuerzos en apoyo a la mujer
Provedor de dados: 121
Tipo: Text
Palavras-chave: MUJERES; ESTADO; SOCIEDAD CIVIL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=15203&tab=opac&oai:flacso.org.ec:15203

Desarrollo forestal campesino estrategias y pistas de trabajo. Memoria
Provedor de dados: 121
Tipo: Text
Palavras-chave: SEMINARIO; MEMORIA; CAMPESINOS; DESARROLLO RURAL; PROYECTO DE DESARROLLO RURAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=103388&tab=opac&oai:flacso.org.ec:103388

The confessions
Provedor de dados: 121
Autores: Saint Augustine; Augustine, Saint.
Tipo: Text
Palavras-chave: ALGERIA; SANTOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=100601&tab=opac&oai:flacso.org.ec:100601

Compadres y priostes la fiesta andina como espacio de memoria y resistencia cultural
Provedor de dados: 121
Autores: comp. por Luis Fernando Botero.
Tipo: Text
Palavras-chave: CULTURA; FIESTAS RELIGIOSAS; ECUADOR; RITUALES; MEMORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=15493&tab=opac&oai:flacso.org.ec:15493

Los grupos financieros en el Ecuador
Provedor de dados: 121
Tipo: Text
Palavras-chave: FINANZAS; ECUADOR; CAPITAL; CAPITALISMO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=998&tab=opac&oai:flacso.org.ec:998

Europa y Amerindia el indio americano en textos del siglo XVIII
Provedor de dados: 121
Autores: Cornelius de Paw...[et.al.].
Tipo: Text
Palavras-chave: EUROPA; INDIOS; SIGLO XVIII.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=101761&tab=opac&oai:flacso.org.ec:101761

Cultural studies
Provedor de dados: 121
Autores: ed. por Lawrence Grossberg.
Tipo: Text
Palavras-chave: CULTURA; CULTURA POPULAR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114418&tab=opac&oai:flacso.org.ec:114418

Guerra del Golfo el dossier secreto
Provedor de dados: 121
Autores: Pierre Salinger; Eric Laurent.; Salinger, Pierre.
Tipo: Text
Palavras-chave: GUERRA DEL GOLFO; IRAK; KUWAIT; HISTORIA; RELACIONES INTERNACIONALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=6571&tab=opac&oai:flacso.org.ec:6571

World development report 1991 the challeurge of development
Provedor de dados: 121
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=2994&tab=opac&oai:flacso.org.ec:2994

Cultural encounters the impact of the inquisition in Spain and the new world
Provedor de dados: 121
Autores: ed. por Mary Elizabeth Perry y Anne J. Cruz.
Tipo: Text
Palavras-chave: HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=136385&tab=opac&oai:flacso.org.ec:136385

Cities, people &amp; poverty urban development cooperation for the 1990.
Provedor de dados: 121
Autores: UNDP.
Tipo: Text
Palavras-chave: POBREZA; DESARROLLO URBANO; ORGANIZACIONES GUBERNAMENTALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=6301&tab=opac&oai:flacso.org.ec:6301

Ethnography unbound power and resistance in the modern metropolis
Provedor de dados: 121
Autores: Michael Burawoy...[et.al].
Tipo: Text
Palavras-chave: CALIFORNIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=102798&tab=opac&oai:flacso.org.ec:102798

Plan ciudad Quitumbre Quito del futuro fase 2
Provedor de dados: 121
Tipo: Text
Palavras-chave: DESARROLLO URBANO; GOBIERNO LOCAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=103559&tab=opac&oai:flacso.org.ec:103559

Andean ecology adaptive dynamics in Ecuador
Provedor de dados: 121
Autores: Gregory Knapp; Knapp, Gregory.
Tipo: Text
Palavras-chave: ECUADOR; AGRICULTURA; PREHISTORIA; ASPECTOS SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=101377&tab=opac&oai:flacso.org.ec:101377

Entangled objects exchange, material culture, and colonialism in the Pacific.
Provedor de dados: 121
Autores: Thomas, Nicholas.
Tipo: Text
Palavras-chave: CULTURA; CAMBIO CULTURAL; VIDA SOCIAL Y COSTUMBRES; COSTUMBRES; OCEANIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=6915&tab=opac&oai:flacso.org.ec:6915

Los Andes antes de los Incas
Provedor de dados: 121
Autores: Mercedes Guinea Bueno; Guinea Bueno, Mercedes.
Tipo: Text
Palavras-chave: CULTURAS PRECOLOMBINAS; ANDES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=124514&tab=opac&oai:flacso.org.ec:124514

A orillas del Zamora.
Provedor de dados: 121
Autores: Ortega Espinosa, Emiliano, 1898-1974.
Tipo: Text
Palavras-chave: POESIA ECUATORIANA; TEATRO ECUATORIANO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=6420&tab=opac&oai:flacso.org.ec:6420

We the people
Provedor de dados: 121
Autores: Bruce Ackerman; Ackerman, Bruce.
Tipo: Text
Palavras-chave: HISTORIA CONSTITUCIONAL; ESTADOS UNIDOS; DERECHO CONSTITUCIONAL; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=118965&tab=opac&oai:flacso.org.ec:118965

Pandillas juveniles en Guayaquil
Provedor de dados: 121
Tipo: Text
Palavras-chave: PANDILLAS JUVENILES; GUAYAQUIL; ECUADOR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=109941&tab=opac&oai:flacso.org.ec:109941

Los usos de Sandino.
Provedor de dados: 121
Autores: Camacho Navarro, Enrique.
Tipo: Text
Palavras-chave: NICARAGUA HISTORIA AUGUSTO C. SANDINO; 1895-1934 GUERRILLAS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=6984&tab=opac&oai:flacso.org.ec:6984

Desarrollo humano informe 1991
Provedor de dados: 121
Autores: Programa de las Naciones Unidas para el Desarrollo.
Tipo: Text
Palavras-chave: DESARROLLO HUMANO; INDICADORES DEL DESARROLLO; DERECHOS HUMANOS; PAZ; DESARROLLO DE CAPACIDADES; DESARROLLO PARTICIPATIVO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=120920&tab=opac&oai:flacso.org.ec:120920

Derecho de personas
Provedor de dados: 121
Autores: Max Coellar Espinoza; Coellar Espinoza, Max.
Tipo: Text
Palavras-chave: ECUADOR; DERECHO; PERSONAS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=111392&tab=opac&oai:flacso.org.ec:111392

Innovation and growth in the global economy
Provedor de dados: 121
Autores: Gene M. Groosman; Helhanan Helpman; Grossman, Gene M.
Tipo: Text
Palavras-chave: COMERCIO INTERNACIONAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=123326&tab=opac&oai:flacso.org.ec:123326

The human factor in rural development
Provedor de dados: 121
Autores: Tom Gabriel; Gabriel, Tom.
Tipo: Text
Palavras-chave: DESARROLLO RURAL; MUJERES Y DESARROLLO; CAMBIO SOCIAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=132138&tab=opac&oai:flacso.org.ec:132138

Centro historico de Quito la vivienda
Provedor de dados: 121
Autores: Roberto Andrade...[et.al.].
Tipo: Text
Palavras-chave: ARQUITECTURA; VIVIENDA; QUITO; ECUADOR; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=102869&tab=opac&oai:flacso.org.ec:102869

Cinco caras de la modernidad modernismo, vanguardia, decadencia, kitsch, posmodernismo.
Provedor de dados: 121
Autores: Matei Calinescu; Calinescu, Matei.
Tipo: Text
Palavras-chave: ARTE; LITERATURA; CULTURA; POSMODERNIDAD; MODERNIDAD.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=5241&tab=opac&oai:flacso.org.ec:5241

Estado, derecho y luchas sociales
Provedor de dados: 121
Autores: Boaventura de Sousa Santos; Santos, Boaventura de Sousa.
Tipo: Text
Palavras-chave: LUCHA DE CLASES; ESTADO; DERECHO; JUSTICIA SOCIAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=2517&tab=opac&oai:flacso.org.ec:2517

Frontera Amazonica historia de un problema
Provedor de dados: 121
Autores: por Marco Restrepo; Teodoro Bustamante.; Restrepo, Marco.
Tipo: Text
Palavras-chave: RELACIONES INTERNACIONALES; FRONTERAS; ECUADOR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=13022&tab=opac&oai:flacso.org.ec:13022

El Estado benefactor un paradigma en crisis
Provedor de dados: 121
Autores: Ernesto A. Isuani; Emilio Tenti Fanfani; Isuani, Ernesto A.
Tipo: Text
Palavras-chave: ESTADO DE BIENESTAR; POBREZA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=112619&tab=opac&oai:flacso.org.ec:112619

Intercultural communication A Reader
Provedor de dados: 121
Autores: Larry A. Samovar; Richard E. Porter; Samovar, Larry A.
Tipo: Text
Palavras-chave: CULTURA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=11203&tab=opac&oai:flacso.org.ec:11203

A nation of enemies Chile under Pinochet
Provedor de dados: 121
Autores: Constable, Pamela y Arturo Valenzuela; Constable, Pamela.
Tipo: Text
Palavras-chave: DICTADURAS; MILITARISMO; TOTALITARISMO; GOBIERNO; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=133110&tab=opac&oai:flacso.org.ec:133110

El laicismo conquista fundamental del liberalismo ecuatoriano.
Provedor de dados: 121
Autores: Moreno Espinosa, Julio.
Tipo: InteractiveResource
Palavras-chave: LAICISMO; ECUADOR; LIBERALISMO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=7620&tab=opac&oai:flacso.org.ec:7620

Historia de las recopilaciones de Indias
Provedor de dados: 121
Autores: Juan Manzano Manzano; Manzano Manzano, Juan.
Tipo: Text
Palavras-chave: DERECHO COLONIAL; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114597&tab=opac&oai:flacso.org.ec:114597

Communication and social change a summary of theories, policies and experiences for medis practitioners in the third world
Provedor de dados: 121
Autores: Michael Kunczik; Kunczik, Michael.
Tipo: Text
Palavras-chave: CAMBIO SOCIAL; SUBDESARROLLO; CULTURA; NOTICIAS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=1555&tab=opac&oai:flacso.org.ec:1555

A course in econometrics
Provedor de dados: 121
Autores: Arthur S. Goldberger; Goldberger, Arthur S.
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=100963&tab=opac&oai:flacso.org.ec:100963

Foucault on modern power empirical insights and normative confusions.
Provedor de dados: 121
Autores: Fraser, Nancy.
Tipo: InteractiveResource
Palavras-chave: GENEALOGIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=10464&tab=opac&oai:flacso.org.ec:10464

Periodismo y medio ambiente memoria del Seminario
Provedor de dados: 121
Tipo: Text
Palavras-chave: PERIODISMO; MEDIO AMBIENTE; ASPECTOS SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=127951&tab=opac&oai:flacso.org.ec:127951

Historia social del sur ecuatoriano Loja, septiembre 30 de 1982
Provedor de dados: 121
Autores: Hernan Gallardo Moscoso; Gallardo Moscoso, Hernan.
Tipo: Text
Palavras-chave: CIENCIAS SOCIALES; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=139511&tab=opac&oai:flacso.org.ec:139511

Cuenca, ciudad prehispana significado y forma
Provedor de dados: 121
Autores: Lozano Castro, Alfredo.
Tipo: Text
Palavras-chave: CUENCA; HISTORIA; CONDICIONES SOCIALES; CULTURA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=6989&tab=opac&oai:flacso.org.ec:6989

The conservation atlas of tropical forests Asia and the Pacific
Provedor de dados: 121
Autores: ed. por N. Mark Collins; Jeffrey A. Sayer; Timothy C.; Whitmore.
Tipo: Text
Palavras-chave: BOSQUES LLUVIOSOS; ASIA; ATLAS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=108657&tab=opac&oai:flacso.org.ec:108657

Frontier expansion in Amazonia
Provedor de dados: 121
Autores: editado por Marianne Schmink; Charles H. Wood.
Tipo: Text
Palavras-chave: RELACIONES GUBERNAMENTALES; AGRICULTURA; CONGRESO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=102253&tab=opac&oai:flacso.org.ec:102253

Insurgency and negotiations defining the boudaries of the political regime in Colombia
Provedor de dados: 121
Autores: Marc William Chernick; Chernick, Marc William.
Tipo: Text
Palavras-chave: COLOMBIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114103&tab=opac&oai:flacso.org.ec:114103

Lecturas constitucionales andinas
Provedor de dados: 121
Tipo: Text
Palavras-chave: LEYES Y DECRETOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=115631&tab=opac&oai:flacso.org.ec:115631

Ensayos sobre el posmodernismo
Provedor de dados: 121
Tipo: Text
Palavras-chave: POSMODERNISMO; HISTORIA SOCIAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=1463&tab=opac&oai:flacso.org.ec:1463

La guerra del Golfo no ha tenido lugar
Provedor de dados: 121
Autores: Jean Baudrillard; Baudrillard, Jean.
Tipo: Text
Palavras-chave: HISTORIA; GUERRA; IRAK.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=129535&tab=opac&oai:flacso.org.ec:129535

On symbolic power
Provedor de dados: 121
Autores: Pierre Bordieu; Bourdieu, Pierre.
Tipo: InteractiveResource
Palavras-chave: ESTRUCTURA SOCIAL; PODER.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=102630&tab=opac&oai:flacso.org.ec:102630

Historia y memoria
Provedor de dados: 121
Autores: por Jacques Le Goff; Le Goff, Jacques.
Tipo: InteractiveResource
Palavras-chave: HISTORIA; TIEMPO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=5220&tab=opac&oai:flacso.org.ec:5220

Gender at the crossroads of knowledge feminist anthropology in the postmodern era
Provedor de dados: 121
Autores: ed. por Micaela di Leonardo.
Tipo: Text
Palavras-chave: FEMINISMO; ROLES SEXUALES; POSMODERNIDAD.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=137983&tab=opac&oai:flacso.org.ec:137983

Los elementos del derecho natural.
Provedor de dados: 121
Autores: Leibniz, Gottfried Wilhelm, 1646-1716.
Tipo: Text
Palavras-chave: DERECHO; JUSTICIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=5753&tab=opac&oai:flacso.org.ec:5753

Varieties of social explanation an introduction to the philosophy of social science
Provedor de dados: 121
Autores: Daniel Little; Little, Daniel.
Tipo: Text
Palavras-chave: CIENCIAS SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=106819&tab=opac&oai:flacso.org.ec:106819

La crisis de la basura en Guayaquil
Provedor de dados: 121
Autores: Nelson Olaya Yagual; Olaya Yagual, Nelson.
Tipo: Text
Palavras-chave: BASURA; CRISIS; APROVECHAMIENTO DE LA BASURA; GUAYAQUIL; CIUDADES; PRIVATIZACIONES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=126088&tab=opac&oai:flacso.org.ec:126088

A brief history of the german trade unions
Provedor de dados: 121
Autores: Michael Schneider; Schneider, Michael.
Tipo: Text
Palavras-chave: SINDICATOS; TRABAJADORES; CONFLICTOS LABORALES; ALEMANIA; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=2548&tab=opac&oai:flacso.org.ec:2548

Caring for the earth a strategy for sustainable living
Provedor de dados: 121
Autores: The World Conservation Union; United Nations Environment Programme; World Wide Fund for Nature.
Tipo: Text
Palavras-chave: DESARROLLO SUSTENTABLE.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=110627&tab=opac&oai:flacso.org.ec:110627

In the way of women men's resistance to sex equality in organizations.
Provedor de dados: 121
Autores: Cockburn, Cynthia.
Tipo: InteractiveResource
Palavras-chave: MUJERES; ROL DE LA MUJER.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=7132&tab=opac&oai:flacso.org.ec:7132

Modernidad en los Andes
Provedor de dados: 121
Autores: comp. por Henrique Urbano y ed. por Mirko Lauer.
Tipo: Text
Palavras-chave: CONDICIONES SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114268&tab=opac&oai:flacso.org.ec:114268

On social organization and social control
Provedor de dados: 121
Autores: ed by James Burk   Morris Janowitz.; Janowitz, Morris.
Tipo: Text
Palavras-chave: CONTROL SOCIAL; ESTRUCTURA SOCIAL; GRUPOS SOCIALES; CAMBIO SOCIAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=6772&tab=opac&oai:flacso.org.ec:6772

Sistema Interamericano de paz
Provedor de dados: 121
Autores: por Marcelo Hervas Silva; Hervas Silva, Marcelo.
Tipo: Text
Palavras-chave: SEGURIDAD COLECTIVA; TIAR; PAZ.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=15027&tab=opac&oai:flacso.org.ec:15027

Ancient city a study on the religion, laws, and institutions of Greece and Rome
Provedor de dados: 121
Autores: Denis Numa Fustel de Coulanges; Fustel de Coulanges, Numa Denis.
Tipo: Text
Palavras-chave: ROMA; GRECIA; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114196&tab=opac&oai:flacso.org.ec:114196

Y no hay remedio...
Provedor de dados: 121
Tipo: Text
Palavras-chave: TENENCIA DE LA TIERRA; INCAS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=116077&tab=opac&oai:flacso.org.ec:116077

El protagonismo de la mujer imprime un nuevo enfoque al desarrollo rural la experiencia en Huehuetenango, Guatemala.
Provedor de dados: 121
Tipo: Text
Palavras-chave: DESARROLLO RURAL; MUJERES; GUATEMALA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=11604&tab=opac&oai:flacso.org.ec:11604

Hacia un desarrollo sin pobreza.
Provedor de dados: 121
Tipo: Text
Palavras-chave: POBREZA; DESARROLLO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=6481&tab=opac&oai:flacso.org.ec:6481

Western state terrorism
Provedor de dados: 121
Autores: ed. por Alexander George.
Tipo: Text
Palavras-chave: TERRORISMO; ESTADOS UNIDOS; RELACIONES INTERNACIONALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=108231&tab=opac&oai:flacso.org.ec:108231

Local economic development public-private partnership initiation in Britain an Germany
Provedor de dados: 121
Autores: Robert J. Bennett; Gunter Krebs; Bennett, Robert J.
Tipo: Text
Palavras-chave: GOBIERNO LOCAL; ALEMANIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130721&tab=opac&oai:flacso.org.ec:130721

Pobreza, violencia y desigualdad retos para la nueva Colombia
Provedor de dados: 121
Autores: Oscar Fresneda B. ...[et.al.].
Tipo: Text
Palavras-chave: POBREZA; VIOLENCIA; DESIGUALDAD; COLOMBIA; PROYECTO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=100576&tab=opac&oai:flacso.org.ec:100576

Escritos sobre moralidad y eticidad.
Provedor de dados: 121
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=9035&tab=opac&oai:flacso.org.ec:9035

Manuel Ferreyros y  la patria peruana epistolario 1836-1839
Provedor de dados: 121
Autores: Celia Wu Brading; Brading, Celia Wu.
Tipo: Text
Palavras-chave: FELIPE SANTIAGO SALAVERRY; INDEPENDENCIA; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=116076&tab=opac&oai:flacso.org.ec:116076

Trabas no arancelarias al comercio andino en el Ecuador
Provedor de dados: 121
Autores: ed por Galo Chiriboga; Marc Meinardus.
Tipo: Text
Palavras-chave: GRUPO ANDINO; COMERCIO EXTERIOR; ECUADOR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=776&tab=opac&oai:flacso.org.ec:776

Steam trains a world portrait
Provedor de dados: 121
Autores: Colin Garrat; Garrat, Colin.
Tipo: Text
Palavras-chave: TRANSPORTE FERROVIARIO; LOCOMOTORAS; TRENES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=139687&tab=opac&oai:flacso.org.ec:139687

Debates sobre modernidad y postmodernidad
Provedor de dados: 121
Autores: N. Lechner    [et.al.].
Tipo: Text
Palavras-chave: POSMODERNISMO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=116177&tab=opac&oai:flacso.org.ec:116177

We think, therefore they are? on occidentallizing the world.
Provedor de dados: 121
Autores: Gewertz, Deborah.
Tipo: InteractiveResource
Palavras-chave: RELACIONES INTERNACIONALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=11844&tab=opac&oai:flacso.org.ec:11844

The catacombs a temple of the butthole.
Provedor de dados: 121
Autores: Rubin, Gayle.
Tipo: InteractiveResource
Palavras-chave: SEXUALIDAD; HOMOSEXUALIDAD.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=8455&tab=opac&oai:flacso.org.ec:8455

Proceedings.
Provedor de dados: 121
Autores: Consultative meeting with Public Agencies and Nongobernamental Organizations Concerned With Environmental Production and the conservation of natural Resources, III.
Tipo: Text
Palavras-chave: MEDIO AMBIENTE; EL CARIBE; DETERIORO AMBIENTAL; DESARROLLO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=5344&tab=opac&oai:flacso.org.ec:5344

Race and public policy a study of local politics and government
Provedor de dados: 121
Autores: Shamit Saggar; Saggar, Shamit.
Tipo: Text
Palavras-chave: GOBIERNO LOCAL; RELACIONES INTERRACIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=131569&tab=opac&oai:flacso.org.ec:131569

La universidad en la frontera del futuro
Provedor de dados: 121
Autores: Cristovam Buarque; Buarque Cristovam.
Tipo: Text
Palavras-chave: UNIVERSIDADES; BRASIL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=115856&tab=opac&oai:flacso.org.ec:115856

Chichasajmi hablemos aguaruna
Provedor de dados: 121
Autores: Jaime Regan ...[et al.]; Regan, Jaime.
Tipo: Text
Palavras-chave: LENGUA AGUARUNA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=6968&tab=opac&oai:flacso.org.ec:6968

Memory and modernity popular culture in Latin America
Provedor de dados: 121
Autores: William Rowe y Vivian Schelling; Rowe, William.
Tipo: Text
Palavras-chave: CULTURA POPULAR; CULTURA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=133081&tab=opac&oai:flacso.org.ec:133081

Los comuneros de Santa Elena tierra, familia y propiedad
Provedor de dados: 121
Autores: Silvia Alvarez G.; Alvarez G., Silvia.
Tipo: Text
Palavras-chave: INDIOS DEL ECUADOR; GUAYAQUIL; ECUADOR; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=17431&tab=opac&oai:flacso.org.ec:17431

Prudencia, moralidad y el dilema del prisionero
Provedor de dados: 121
Autores: Derek Parfit; Parfit, Derek.
Tipo: Text
Palavras-chave: TOMA DE DECISIONES; DILEMA DEL PRISIONERO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=128288&tab=opac&oai:flacso.org.ec:128288

El pensamiento democratacristiano
Provedor de dados: 121
Tipo: Text
Palavras-chave: PARTIDO DEMOCRATICO CRISTIANO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114391&tab=opac&oai:flacso.org.ec:114391

The rhetoric of reaction perversity, futility, jeopardy
Provedor de dados: 121
Autores: Albert O. Hirschman; Hirschman, Albert O.
Tipo: Text
Palavras-chave: CONSERVADORISMO; HISTORIA; ELECCIONES; ESTADO DE BIENESTAR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114712&tab=opac&oai:flacso.org.ec:114712

Priests and programmers technologies of power in the engineered landscape of Bali
Provedor de dados: 121
Autores: J. Stephen Lansing; Lansing, J. Stephen.
Tipo: Text
Palavras-chave: HISTORIA; BALI; AGUA; RIEGO; ASPECTOS RELIGIOSOS; PAISAJE CULTURAL; SITIOS SAGRADOS; TEMPLOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=105017&tab=opac&oai:flacso.org.ec:105017

Shelter prevision and employment generation.
Provedor de dados: 121
Autores: UNCHS (Habitat).
Tipo: Text
Palavras-chave: VIVIENDA; CONSTRUCCION; AREA URBANA; CIUDAD; CREACION DE EMPLEOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=11251&tab=opac&oai:flacso.org.ec:11251

Shaping the political arena critical junctures, the labor movement, and regime dynamics in Latin America
Provedor de dados: 121
Autores: Ruth Berins Collier; David Collier; Collier, Ruth Berins.
Tipo: Text
Palavras-chave: MOVIMIENTOS OBREROS; POPULISMO; CRISIS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=128985&tab=opac&oai:flacso.org.ec:128985

Restructuring economies in distress policy reform and the world bank
Provedor de dados: 121
Autores: editado por Vinod Thomas...[et.al.].
Tipo: Text
Palavras-chave: FINANZAS; AGRICULTURA; INDUSTRIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=14027&tab=opac&oai:flacso.org.ec:14027

Energy, the environment, and public policy issues for the 1990s
Provedor de dados: 121
Autores: ed. por David L. McKee.
Tipo: Text
Palavras-chave: ESTADOS UNIDOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=108992&tab=opac&oai:flacso.org.ec:108992

Historia de la mujer y la familia
Provedor de dados: 121
Tipo: Text
Palavras-chave: MUJERES; HISTORIA; CINE; ROL DE LA MUJER.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=139736&tab=opac&oai:flacso.org.ec:139736

The most frequently updated guide to Ecuador and the Galapagos Islands The Budget Travelles Guide.
Provedor de dados: 121
Tipo: Text
Palavras-chave: TURISMO; ECUADOR; HISTORIA; GEOGRAFIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=5895&tab=opac&oai:flacso.org.ec:5895

El fruto de los dioses El cacao en el Ecuador, desde la colonia hasta el ocaso de su industria, 1600-1983
Provedor de dados: 121
Autores: Guillermo Arosemena A.; Arosemena A., Guillermo.
Tipo: Text
Palavras-chave: CACAO; INDUSTRIA; COMERCIO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=139990&tab=opac&oai:flacso.org.ec:139990

Language and symbolic power
Provedor de dados: 121
Autores: Pierre Bourdieu; Bourdieu, Pierre.
Tipo: Text
Palavras-chave: LENGUAJE.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=109502&tab=opac&oai:flacso.org.ec:109502

Amazon watershed the new environmental investigation
Provedor de dados: 121
Autores: George Monbiot; Monbiot, George.
Tipo: Text
Palavras-chave: ASPECTOS AMBIENTALES; ASPECTOS AMBIENTALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=101388&tab=opac&oai:flacso.org.ec:101388

The development of political science a comparative survey
Provedor de dados: 121
Autores: ed. por David Easton, John G. Gunnell y Luigi Graziano.
Tipo: Text
Palavras-chave: GRECIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=132991&tab=opac&oai:flacso.org.ec:132991

Tradiciones, personajes y costumbres de Ibarra
Provedor de dados: 121
Autores: Abelardo Morales Granda; Morales Granda, Abelardo.
Tipo: Text
Palavras-chave: IBARRA; CULTURA; COSTUMBRE Y TRADICIONES; HISTORIA; ECUADOR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=131041&tab=opac&oai:flacso.org.ec:131041

Reforma del estado y privatizaciones
Provedor de dados: 121
Tipo: Text
Palavras-chave: DERECHO; ESTADO; ARGENTINA; LEYES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=13459&tab=opac&oai:flacso.org.ec:13459

Pobreza urbana enfermedad y comportamiento popular
Provedor de dados: 121
Autores: Juan Carlos Ribadeneira; Ribadeneira, Juan Carlos.
Tipo: Text
Palavras-chave: ECUADOR; EPIDEMIOLOGIA; POBREZA; ENFERMEDADES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=10798&tab=opac&oai:flacso.org.ec:10798

Self-interest and public interest in western politics
Provedor de dados: 121
Autores: Leif Lewin; Lewin, Leif.
Tipo: Text
Palavras-chave: EUROPA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130748&tab=opac&oai:flacso.org.ec:130748

The green case a sociology of environmental issues, arguments and politics
Provedor de dados: 121
Autores: Steven Yearley; Yearley, Steven.
Tipo: Text
Palavras-chave: MOVIMIENTOS AMBIENTALISTAS; DESARROLLO; ASPECTOS AMBIENTALES; CIENCIAS SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=129129&tab=opac&oai:flacso.org.ec:129129

The cultural basis of landownership and its social implications
Provedor de dados: 121
Autores: por Fred. R. Myers.; Myers, Fred R.
Tipo: InteractiveResource
Palavras-chave: CULTURA; PINTUPI; PROPIEDAD DE LA TIERRA; DERECHOS DE PROPIEDAD; PARENTESCO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=14847&tab=opac&oai:flacso.org.ec:14847

Con los llanques todo barro reflexiones sobre rondas campesinas, protesta rural y nuevos movimientos sociales
Provedor de dados: 121
Autores: Orin Starn; Starn, Orin.
Tipo: Text
Palavras-chave: PROTESTA; CAMPESINOS; SOCIEDAD; ASPECTOS SOCIALES; HISTORIA SOCIAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=115400&tab=opac&oai:flacso.org.ec:115400

El estudiante de la mesa redonda
Provedor de dados: 121
Tipo: Text
Palavras-chave: LITERATURA ECUATORIANA; NOVELA ECUATORIANA; LENGUAS NATIVAS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=139530&tab=opac&oai:flacso.org.ec:139530

Spain's special relationship with Latin America the case of spanish-andean relaations
Provedor de dados: 121
Tipo: Text
Palavras-chave: RELACIONES INTERNACIONALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=1055&tab=opac&oai:flacso.org.ec:1055

La libertad
Provedor de dados: 121
Autores: Ludovico Geymonat; Geymonat, Ludovico.
Tipo: Text
Palavras-chave: LIBERTAD.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=102903&tab=opac&oai:flacso.org.ec:102903

Think tanks and governance in the Asia-Pacific-Region
Provedor de dados: 121
Autores: ed. por John W. Langford.
Tipo: Text
Palavras-chave: RELACIONES INTERNACIONALES; ASIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130864&tab=opac&oai:flacso.org.ec:130864

El hinduismo
Provedor de dados: 121
Autores: Louis Renou; Renou, Louis.
Tipo: Text
Palavras-chave: HINDUISMO; DOCTRINAS RELIGIOSAS; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=126813&tab=opac&oai:flacso.org.ec:126813

Population and nutrition an essay on european demographic history
Provedor de dados: 121
Autores: Massimo Livi Bacci; Livi Bacci, Massimo.
Tipo: Text
Palavras-chave: HISTORIA; ENSAYO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=137138&tab=opac&oai:flacso.org.ec:137138

Evaluation thesaurus
Provedor de dados: 121
Autores: por Michael Scriven; Scriven, Michael.
Tipo: Text
Palavras-chave: TESAURUS; DICCIONARIOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=119111&tab=opac&oai:flacso.org.ec:119111

Colombia Internacional Centro de Estudios Internacionales de la Universidad de los Andes
Provedor de dados: 121
Autores: CEI.
Tipo: Text
Palavras-chave: CIENCIAS SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=101229&tab=opac&oai:flacso.org.ec:101229

The politics of nuclear power a history of the Shoreham Nuclear Power Plant
Provedor de dados: 121
Autores: David P. McCaffrey; McCaffrey, David P.
Tipo: Text
Palavras-chave: CENTRALES NUCLEARES; ESTADOS UNIDOS; HISTORIA; INDUSTRIA NUCLEAR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=109252&tab=opac&oai:flacso.org.ec:109252

Composing culture the authority of an electronic text
Provedor de dados: 121
Autores: por Gregory Crane.; Crane, Gregory.
Tipo: InteractiveResource
Palavras-chave: DOCUMENTOS; BASES DE DATOS; MEDIOS DE COMUNICACION.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=15363&tab=opac&oai:flacso.org.ec:15363

The life and times of grandfather Alonso culture and history in the upper Amazon
Provedor de dados: 121
Autores: Blanca Muratorio; Muratorio, Blanca.
Tipo: Text
Palavras-chave: ECUADOR; NAPO (ECUADOR); CONDICIONES SOCIALES; QUECHUA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=111159&tab=opac&oai:flacso.org.ec:111159

The bill of rights, the courts, and the law
Provedor de dados: 121
Autores: case abridgements and commentary by A. E. Dick Howard, ... [et al.].
Tipo: Text
Palavras-chave: DERECHO; DERECHO CONSTITUCIONAL; DERECHOS CIVILES; DERECHOS HUMANOS; ESTADOS UNIDOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=136316&tab=opac&oai:flacso.org.ec:136316

Anales
Provedor de dados: 121
Tipo: Text
Palavras-chave: ROMA; HISTORIA ANTIGUA; ANALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=18027&tab=opac&oai:flacso.org.ec:18027

Apertura y crecimiento el reto de los noventa
Provedor de dados: 121
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=1685&tab=opac&oai:flacso.org.ec:1685

Desalojos y despojos los conflictos agrarios en Ecuador 1983-1990
Provedor de dados: 121
Autores: Alain Dubly; Alicia Granda; Dubly, Alain.
Tipo: Text
Palavras-chave: PROPIEDAD DE LA TIERRA; CAMPESINOS; CONFLICTOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=106390&tab=opac&oai:flacso.org.ec:106390

El manejo de la deuda externa de Colombia
Provedor de dados: 121
Tipo: Text
Palavras-chave: DEUDA EXTERNA; COLOMBIA; FINANZAS INTERNACIONALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=1119&tab=opac&oai:flacso.org.ec:1119

The language of the Inka since the European invasion
Provedor de dados: 121
Autores: Bruce Mannheim; Mannheim, Bruce.
Tipo: Text
Palavras-chave: LENGUAS NATIVAS SUDAMERICANAS; QUECHUA; CONQUISTA; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=116075&tab=opac&oai:flacso.org.ec:116075

Control, conflict and alliance An analysis of land and labour relations in two bangladesh villages
Provedor de dados: 121
Autores: Anjan Kumar Datta; Kumar Datta, Anjan.
Tipo: Text
Palavras-chave: DESARROLLO RURAL; DESARROLLO AGRICOLA; ZONA RURAL; ASPECTOS SOCIALES; BANGLARESHS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=103265&tab=opac&oai:flacso.org.ec:103265

Domicilio y residencia
Provedor de dados: 121
Autores: Alfredo Jaramillo J.; Jaramillo J., Alfredo.
Tipo: Text
Palavras-chave: DERECHO CIVIL; ECUADOR; DOMICILIO; RESIDENCIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=115894&tab=opac&oai:flacso.org.ec:115894

Oceans
Provedor de dados: 121
Autores: ed. por Danny Elder; John Pernetta.
Tipo: Text
Palavras-chave: BIODIVERSIDAD; ATLAS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=107048&tab=opac&oai:flacso.org.ec:107048

Juvenile delinquency classic and contemporary readings
Provedor de dados: 121
Autores: editado por William E. Thompson; Jack E. Bynum.
Tipo: Text
Palavras-chave: DELINQUENCIA JUVENIL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=100789&tab=opac&oai:flacso.org.ec:100789

Environmental policy and policy instruments.
Provedor de dados: 121
Autores: Barde, Jean-Philippe.
Tipo: InteractiveResource
Palavras-chave: MEDIO AMBIENTE.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=7671&tab=opac&oai:flacso.org.ec:7671

Historias
Provedor de dados: 121
Tipo: Text
Palavras-chave: GRECIA; HISTORIA; HISTORIA ANTIGUA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=17955&tab=opac&oai:flacso.org.ec:17955

Defensa de la costa ecuatoriana en el siglo XX
Provedor de dados: 121
Autores: Jorge Perez Concha; Perez Concha, Jorge.
Tipo: Text
Palavras-chave: HISTORIA; GUERRAS; CONFLICTO INTERNACIONAL; DEFENSA NAVAL; ZONA COSTERA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=138998&tab=opac&oai:flacso.org.ec:138998

Equality politics and gender
Provedor de dados: 121
Autores: ed. por Elizabeth Meehan; Selma Sevenhuijsen.
Tipo: Text
Palavras-chave: MUJERES; DERECHOS DE LAS MUJERES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130785&tab=opac&oai:flacso.org.ec:130785

Virtual reality
Provedor de dados: 121
Autores: Howard Rheingold; Rheingold, Howard.
Tipo: Text
Palavras-chave: ORDENADORES; REALIDAD VIRTUAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=123038&tab=opac&oai:flacso.org.ec:123038

Comparative political dynamics global research perspectives
Provedor de dados: 121
Autores: ed. por Dankwart A. Rustow; Kenneth Paul Erikson.
Tipo: Text
Palavras-chave: ESTADO; DEMOCRACIA; BIENESTAR SOCIAL; SOCIALISMO; CAPITALISMO; AFRICA; ASIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=100951&tab=opac&oai:flacso.org.ec:100951

Mexico since independence
Provedor de dados: 121
Autores: ed. por Leslie Bethell.
Tipo: Text
Palavras-chave: HISTORIA; LIBERALISMO; AUTORITARISMO; INDEPENDENCIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=128562&tab=opac&oai:flacso.org.ec:128562

Beyond interdependence the meshing mf the world's economy and the earth's ecology
Provedor de dados: 121
Autores: Jim MacNeill, Pieter Winsemius y Taizo Yakushiji; MacNeill, Jim.
Tipo: Text
Palavras-chave: ASPECTOS MEDIOAMBIENTALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=111148&tab=opac&oai:flacso.org.ec:111148

Income distribution, inflation, and growth lectures on structuralist macroeconomic theory
Provedor de dados: 121
Autores: Lance Taylor; Taylor, Lance.
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=128800&tab=opac&oai:flacso.org.ec:128800

Governance of the american economy
Provedor de dados: 121
Autores: ed. por John L. Campbell; J. Rogers Hollingsworth; Leon N. Lindberg.
Tipo: Text
Palavras-chave: ESTADOS UNIDOS; INDUSTRIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=111501&tab=opac&oai:flacso.org.ec:111501

El ocaso del radicalismo revolucionario ferrocarrileros y petroleros, 1938-1947
Provedor de dados: 121
Tipo: Text
Palavras-chave: HISTORIA; RADICALISMO; MOVIMIENTO OBRERO; PETROLEROS; FERROCARRILEROS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=111342&tab=opac&oai:flacso.org.ec:111342

The next one hundred years shaping the fate of our living earth
Provedor de dados: 121
Autores: Jonathan Weiner; Weiner, Jonathan.
Tipo: Text
Palavras-chave: EFECTOS DE LAS ACTIVIDADES HUMANAS; NATURALEZA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=102274&tab=opac&oai:flacso.org.ec:102274

Gregory Bateson el legado de un hombre de ciencia
Provedor de dados: 121
Autores: David Lipset; Lipset, David.
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=101143&tab=opac&oai:flacso.org.ec:101143

La familia
Provedor de dados: 121
Tipo: Text
Palavras-chave: FAMILIA; RELACIONES FAMILIARES; PATERNIDAD.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=3191&tab=opac&oai:flacso.org.ec:3191

Night thoughts of a classical physicist
Provedor de dados: 121
Autores: Russell McCormmach; McCormmach, Russell.
Tipo: Text
Palavras-chave: HISTORIA; NOVELA; LITERATURA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=133457&tab=opac&oai:flacso.org.ec:133457

Usos tradicionales de las especies forestales naturales en el Ecuador
Provedor de dados: 121
Autores: Intercooperation.
Tipo: Text
Palavras-chave: MANEJO DE LOS RECURSOS NATURALES; ECUADOR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=100667&tab=opac&oai:flacso.org.ec:100667

Las mujeres y el poder una historia de Villa El Salvador
Provedor de dados: 121
Autores: Cecilia Blondet M.; Blondet, M. Cecilia.
Tipo: Text
Palavras-chave: MUJERES; MOVIMIENTOS SOCIALES; IDENTIDAD.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=100425&tab=opac&oai:flacso.org.ec:100425

Central america since independence
Provedor de dados: 121
Autores: ed. por Leslie Bethell.
Tipo: Text
Palavras-chave: HISTORIA; SIGLO XIX; SIGLO XX.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=128442&tab=opac&oai:flacso.org.ec:128442

Citizenship
Provedor de dados: 121
Autores: ed. por Geoff Andrews.
Tipo: Text
Palavras-chave: REFORMA CONSTITUCIONAL; REFORMA ELECTORAL; ASPECTOS SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130716&tab=opac&oai:flacso.org.ec:130716

Marx, marginalism and modern sociology from Adam Smith to Max Weber.
Provedor de dados: 121
Autores: Clarke, Simon.
Tipo: Text
Palavras-chave: MARGINALIDAD; MARXISMO; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=6705&tab=opac&oai:flacso.org.ec:6705

Austrian politics and society today in defence of Austria
Provedor de dados: 121
Autores: John Fitzmaurice; Fitzmaurice, John.
Tipo: Text
Palavras-chave: AUSTRIA; ASPECTOS SOCIALES; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130868&tab=opac&oai:flacso.org.ec:130868

The great migration in historical perspective new dimensions of race, class, and gender
Provedor de dados: 121
Autores: editado por Joe William Trotter, Jr.
Tipo: Text
Palavras-chave: AFROAMERICANOS; ESTADOS UNIDOS; HISTORIA; ASPECTOS SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=12524&tab=opac&oai:flacso.org.ec:12524

From Max Weber essays in sociology
Provedor de dados: 121
Autores: ed. por H. H. Gerth; C. Wright Mills.
Tipo: Text
Palavras-chave: CIENCIAS SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=131563&tab=opac&oai:flacso.org.ec:131563

America, Russia, and the cold war 1945-1990
Provedor de dados: 121
Autores: Walter Lafeber; Lafeber, Walter.
Tipo: Text
Palavras-chave: HISTORIA ESTADOUNIDENSE; GUERRA DE COREA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=137735&tab=opac&oai:flacso.org.ec:137735

Estudios (nuevos y viejos) sobre la frontera
Provedor de dados: 121
Autores: coord. por Francisco de Solano y Salvador Bernabeu.
Tipo: Text
Palavras-chave: HISTORIA; TERRITORIOS; TESIS DE FRONTERA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=138040&tab=opac&oai:flacso.org.ec:138040

Memorias.
Provedor de dados: 121
Tipo: Text
Palavras-chave: CULTURA; PLANIFICACION URBANA; QUITO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=9159&tab=opac&oai:flacso.org.ec:9159

Temas Especiales del Desarrollo.
Provedor de dados: 121
Autores: Naciones Unidas; CEPAL; CLADES.
Tipo: Text
Palavras-chave: ESTADO; ORGANISMOS INTERNACIONALES; DEUDA EXTERNA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=104823&tab=opac&oai:flacso.org.ec:104823

Hagamos cuentas... con la realidad
Provedor de dados: 121
Autores: por Alonso Aguilar M.; Fernando Carmona; Aguilar M., Alonso.
Tipo: Text
Palavras-chave: RELACIONES INTERNACIONALES; CAMBIO SOCIAL; ESTADOS UNIDOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=14135&tab=opac&oai:flacso.org.ec:14135

Freedom in the making of western culture
Provedor de dados: 121
Autores: Orlando Patterson; Patterson, Orlando.
Tipo: Text
Palavras-chave: SOCIEDAD; ESCLAVITUD; HISTORIA; EDAD MEDIA; ANTIGUEDAD; CULTURA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=133294&tab=opac&oai:flacso.org.ec:133294

Adolescentes entre la escuela y el trabajo
Provedor de dados: 121
Autores: Silvia Llomovatte; Llomovatte, Silvia.
Tipo: Text
Palavras-chave: TRABAJO INFANTIL; ARGENTINA; JUVENTUD; EMPLEO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=116151&tab=opac&oai:flacso.org.ec:116151

What's critical about critical theory? the case of Habermas and gender.
Provedor de dados: 121
Autores: Fraser, Nancy.
Tipo: InteractiveResource
Palavras-chave: FEMINISMO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=10463&tab=opac&oai:flacso.org.ec:10463

Las crisis en el Ecuador los treinta y ochenta
Provedor de dados: 121
Autores: Rosemary Thorp ...[et al.].
Tipo: Text
Palavras-chave: ECUADOR; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=109152&tab=opac&oai:flacso.org.ec:109152

War in the age of intelligent machines
Provedor de dados: 121
Autores: Manuel De Landa; De Landa, Manuel.
Tipo: Text
Palavras-chave: CIENCIA MILITAR; ESTADOS UNIDOS; HISTORIA; INTELIGENCIA ARTIFICIAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=123006&tab=opac&oai:flacso.org.ec:123006

Hacia un nuevo proyecto de la socialdemocracia latinoamericana
Provedor de dados: 121
Autores: Juan Manuel Villasuso E. ...[et. al.].
Tipo: Text
Palavras-chave: NEOLIBERALISMO; DEMOCRACIA; COSTOS SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=2932&tab=opac&oai:flacso.org.ec:2932

Setting the north - south agenda United States - Latin american relations in the 1990s
Provedor de dados: 121
Autores: ed. por Henry Hamman.
Tipo: Text
Palavras-chave: RELACIONES INTERNACIONALES; ESTADOS UNIDOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=128482&tab=opac&oai:flacso.org.ec:128482

British social attitudes the 8th report
Provedor de dados: 121
Autores: ed. por Roger Jowell ...[et al.].
Tipo: Text
Palavras-chave: ACTITUDES; ASPECTOS SOCIALES; HISTORIA SOCIAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130718&tab=opac&oai:flacso.org.ec:130718

Trabas arancelarias al comercio andino en el Ecuador
Provedor de dados: 121
Autores: ed. por Galo Chiriboga; Marc Meinardus y Rafael Urriola.
Tipo: Text
Palavras-chave: COMERCIO; ARANCELES; ECUADOR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=115505&tab=opac&oai:flacso.org.ec:115505

Procesos Revista Ecuatoriana de Historia
Provedor de dados: 121
Tipo: Text
Palavras-chave: HISTORIA; HISTORIA DEL ECUADOR; HISTORIA ANDINA; ECUADOR.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=101859&tab=opac&oai:flacso.org.ec:101859

Equity and Choice an essay in economics and applied philosophy
Provedor de dados: 121
Autores: por Julian LeGrand; LeGrand, Julian.
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130780&tab=opac&oai:flacso.org.ec:130780

Poder y violencia en los Andes
Provedor de dados: 121
Autores: compilado por Henrique Urbano.
Tipo: Text
Palavras-chave: PODER; VIOLENCIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=100882&tab=opac&oai:flacso.org.ec:100882

Imagined country society, culture and environment
Provedor de dados: 121
Autores: John Rennie Short; Short, John Rennie.
Tipo: Text
Palavras-chave: ESTADOS UNIDOS; AUSTRALIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=102338&tab=opac&oai:flacso.org.ec:102338

Unfinished conversations mayas and foreigners   between two wars
Provedor de dados: 121
Autores: por Paul Sullivan.; Sullivan, Paul.
Tipo: Text
Palavras-chave: MAYAS; HISTORIA; GOBIERNO; CULTURA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=14411&tab=opac&oai:flacso.org.ec:14411

The state or the market politics and welfare in contemporary Britain
Provedor de dados: 121
Autores: ed. por Martin Loney ...[et al.].
Tipo: Text
Palavras-chave: SERVICIO SOCIAL; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130756&tab=opac&oai:flacso.org.ec:130756

Conversaciones inconclusas mayas y extranjeros entre dos guerras
Provedor de dados: 121
Autores: por Paul Sullivan; Sullivan,Paul.
Tipo: Text
Palavras-chave: MAYAS; HISTORIA; RELACIONES DE GOBIERNO; CULTURA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=11728&tab=opac&oai:flacso.org.ec:11728

El temblor y la luna ensayo sobre las relaciones entre las mujeres y los hombres Mai huna
Provedor de dados: 121
Autores: por Irene Bellier; Bellier, Irene.
Tipo: Text
Palavras-chave: MAI HUNA; SOCIEDAD; IDENTIDAD CULTURAL; TIEMPO; MUJERES; HOMBRES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=14304&tab=opac&oai:flacso.org.ec:14304

Beyond the coldwar conflict and cooperation in the third world
Provedor de dados: 121
Autores: ed. by George W. Breslauer ...[et al.]; Breslauer, George W.,ed.
Tipo: Text
Palavras-chave: PAIS EN DESARROLLO; CONFLICTOS; RELACIONES INTERNACIONALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=5204&tab=opac&oai:flacso.org.ec:5204

Family well being, food consumption and survival strategies during mexico economic's crisis wild gardens and cultivated forests in the ecuadorian Amazon
Provedor de dados: 121
Tipo: InteractiveResource
Palavras-chave: FAMILIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=14695&tab=opac&oai:flacso.org.ec:14695

Las noches de los libertadores
Provedor de dados: 121
Autores: Fernando Jurado Noboa; Jurado Noboa, Fernando.
Tipo: Text
Palavras-chave: HISTORIA; GUERRAS DE INDEPENDENCIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=112509&tab=opac&oai:flacso.org.ec:112509

Economic relation between the european community and Latin America a statistical profile, 1991
Provedor de dados: 121
Tipo: Text
Palavras-chave: EUROPA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=1448&tab=opac&oai:flacso.org.ec:1448

Modern political thought
Provedor de dados: 121
Autores: Raymond Plant; Plant, Raymond.
Tipo: Text
Palavras-chave: JUSTICIA; LIBERALISMO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=131525&tab=opac&oai:flacso.org.ec:131525

Obras selectas
Provedor de dados: 121
Tipo: Text
Palavras-chave: ECUADOR; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=103697&tab=opac&oai:flacso.org.ec:103697

Markets, hierarchies &amp; networks the coordination of social life
Provedor de dados: 121
Autores: ed por Grahame Thompson ... [et al.].
Tipo: Text
Palavras-chave: MERCADO; ASPECTOS SOCIALES; REDES SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130794&tab=opac&oai:flacso.org.ec:130794

El desarrollo agropecuario pampeano
Provedor de dados: 121
Autores: ed. por Osvaldo Barsky.
Tipo: Text
Palavras-chave: ARGENTINA; AGRICULTURA; PAMPAS (Argentina); CONDICIONES RURALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=110892&tab=opac&oai:flacso.org.ec:110892

La familia.
Provedor de dados: 121
Autores: Tenorio Ambrossi, Rodrigo.
Tipo: Text
Palavras-chave: FAMILIA; PATERNIDAD; PADRES; VARONES; MUJERES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=11592&tab=opac&oai:flacso.org.ec:11592

Silent earth the politics of our survival
Provedor de dados: 121
Autores: David Israelson; Israelson, David.
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114601&tab=opac&oai:flacso.org.ec:114601

Los derechos del hombre.
Provedor de dados: 121
Autores: Herzog, Roman.
Tipo: InteractiveResource
Palavras-chave: DERECHOS HUMANOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=7753&tab=opac&oai:flacso.org.ec:7753

Collins dictionary of sociology
Provedor de dados: 121
Autores: David Jary; Julia Jary.; Jary, David.
Tipo: Text
Palavras-chave: DICCIONARIOS; CIENCIAS SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=7466&tab=opac&oai:flacso.org.ec:7466

Guatemala cosecha de violencias
Provedor de dados: 121
Autores: comp. por Robert  M. Carmack.
Tipo: Text
Palavras-chave: GUATEMALA; CONDICIONES SOCIALES; VIOLENCIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114770&tab=opac&oai:flacso.org.ec:114770

Regimen Legal aduanero del Ecuador
Provedor de dados: 121
Tipo: Text
Palavras-chave: ADUANA; ECUADOR; ARANCELES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=2315&tab=opac&oai:flacso.org.ec:2315

Los nuevos retos electorales Colombia 1990: antesala del cambio
Provedor de dados: 121
Tipo: Text
Palavras-chave: COLOMBIA ELECCIONES; 1990.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114743&tab=opac&oai:flacso.org.ec:114743

Operations research in management
Provedor de dados: 121
Autores: ed. por S.C. Littlechild and M.F. Shutler.
Tipo: Text
Palavras-chave: GERENCIA; ESTADOS UNIDOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130869&tab=opac&oai:flacso.org.ec:130869

Comparative performance of U.S. econometric models
Provedor de dados: 121
Autores: ed. por Lawrence R. Klein.
Tipo: Text
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=138277&tab=opac&oai:flacso.org.ec:138277

The growth of economic thought
Provedor de dados: 121
Autores: por Henry Wiliam Spiegal; Spiegel, Henry William.
Tipo: Text
Palavras-chave: MERCANTILISMO; SOCIALISMO; KARL MARX; JHON STUART MILL; ADAM SMITH.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=14635&tab=opac&oai:flacso.org.ec:14635

The global citizen
Provedor de dados: 121
Autores: Donella H. Meadows; Meadows, Donella H.
Tipo: Text
Palavras-chave: PROBLEMAS SOCIALES; CALIDAD DE VIDA; ESTADOS UNIDOS; CONDICIONES SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=111154&tab=opac&oai:flacso.org.ec:111154

Citizens, consumers and councils local government and the public
Provedor de dados: 121
Autores: John Gyford; Gyford, John.
Tipo: Text
Palavras-chave: GOBIERNO LOCAL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=132645&tab=opac&oai:flacso.org.ec:132645

Revista Latinoamericana de Ciencias Sociales.
Provedor de dados: 121
Tipo: Text
Palavras-chave: GOBERNABILIDAD; CIENCIAS SOCIALES; ELECCIONES; DEMOCRACIA; ESTADO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=104794&tab=opac&oai:flacso.org.ec:104794

Time in history views of time from prehistory to the present day
Provedor de dados: 121
Autores: G.J. Whitrow; Whitrow, G.J.
Tipo: Text
Palavras-chave: HISTORIA UNIVERSAL; TIEMPO; ASPECTOS SOCIALES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114591&tab=opac&oai:flacso.org.ec:114591

La naturaleza cambiante del poder americano
Provedor de dados: 121
Autores: Joseph S. Nye, Jr.; Nye, Jr., Joseph S.
Tipo: Text
Palavras-chave: PODER; RELACIONES INTERNACIONALES; HISTORIA; SIGLO XIX; ESTADOS UNIDOS.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114570&tab=opac&oai:flacso.org.ec:114570

Civilization, society and religion group psychology, civilization and its discontents and other works
Provedor de dados: 121
Autores: Sigmund Freud; Freud, Sigmund.
Tipo: Text
Palavras-chave: GUERRA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=130749&tab=opac&oai:flacso.org.ec:130749

Population and ethnicity in early republican Peru some revisions
Provedor de dados: 121
Autores: por Paul Gootenberg; Gootenberg, Paul.
Tipo: InteractiveResource
Palavras-chave: ETNICIDAD; HISTORIA.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=13859&tab=opac&oai:flacso.org.ec:13859

The decade of destruction the crusade to save the amazon rain forest
Provedor de dados: 121
Autores: Adrian Cowel; Cowel, Adrian.
Tipo: Text
Palavras-chave: INFLUENCIA HUMANA SOBRE LA NATURALEZA; CONDICIONES SOCIALES; BRASIL.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=102333&tab=opac&oai:flacso.org.ec:102333

Horses of live and death
Provedor de dados: 121
Autores: Laura Scheerer Whitney.
Tipo: MovingImage
Palavras-chave: OCASIONES ESPECIALES; DUELO; COSTUMBRES.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=131447&tab=opac&oai:flacso.org.ec:131447

Etica Comunicativa y Democracia
Provedor de dados: 121
Autores: editado por: K.O. Apel, A. Cortina, J de Zan, D. Michelini.
Tipo: Text
Palavras-chave: DEMOCRACIA; HISTORIA; SOCIEDAD; MEDIOS DE COMUNICACION; JUSTICIA; SOLIDARIDAD; DISCRUSO.
Ano: 1991
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=16195&tab=opac&oai:flacso.org.ec:16195

QUALIDADE DE SEMENTES DE GIRASSOL
Provedor de dados: 65
Autores: Menezes,Nilson Lemos de; Marchezan,Enio.
O presente trabalho teve como objetivos avaliar a qualidade fisiológica e sanitária de sementes de girassol (Helianthus annuus L.), provenientes do Ensaio Regional de Cultivares de Girassol, instalado na área experimental da Universidade Federal de Santa Maria (UFSM), em Santa Maria - RS, nas safras 1984/85 e 1985/86. Foram testados 15 genótipos e duas épocas de colheitas; a primeira quando as sementes atingiram, pela primeira vez, 14 - 13% de umidade e a segunda oito dias após. A qualidade fisiológica das sementes foi avaliada através dos testes de germinação e vigor (envelhecimento acelerado, strictu sensu), peso de mil sementes e conteúdo de matéria seca. O estudo patológico foi feito pelo método de papel de filtro, com congelamento, assepsia...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sunflower seeds; Physiological quality; Sanitary quality; Harvest delaying.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000300003

MIELOGRAFIA EM CÃES COM IOHEXOL
Provedor de dados: 65
Autores: Adelina Maria da,Silva; Sérgio Amaro Guimarães,Fialho.
RESUMO Iohexol, um novo meio de contraste hidrossolúvel não iônico, foi utilizado na realização de mielografias em seis cães, cinco dos quais normais. O sexto animal, atropelado por uma motocicleta, apresentava paralisia espástica dos membros torácicos e paralisia flácida dos membros pélvicos. Na mielografia desse cão, o meio de contraste não progrediu além de T11 e o exame macroscópico confirmou a fratura do corpo vertebral de T11. A qualidade das mielografias foi excelente pois o iohexol proporcionou uma opacificação adequada e homogênea do espaço subaracnóideo. O iohexol deslocou-se de maneira satisfatória e mielografias das regiões torácica e lombar puderam ser obtidas pela punção cisternal. Não foi registrado nenhum caso de convulsão, confirmando a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Iohexol; Mielografia; Doenças do sistema nervoso; Meios de contraste não iônicos.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000100007

EFEITO DO MÉTODO DE PREPARO DO SOLO NA DISTRIBUIÇÃO RADICULAR DO MILHO (Zea mays, L.) EM TERRA ROXA ESTRUTURADA
Provedor de dados: 65
Autores: Manfron,Paulo Augusto; Libardi,Paulo Leonel; Pauletto,Eloy Antonio; Moraes,Sérgio Oliveira.
Foi realizado um estudo para determinar o efeito de dois sistemas de preparo do solo na distribuição radicular do milho (Zea mays, L.), nas diversas camadas do perfil do solo, em Piracicaba, SP. As amostras foram monólitos de solo de 0,008m³ com raízes de milho, retiradas de trincheiras com 1,12 X 0,90 X 1,00m. Constatou-se que efetivamente ocorreu uma maior massa radicular e maior variabilidade na distribuição de raízes, no preparo do solo subsolado em relação ao solo não subsolado, mas não houve diferença significativa entre os tratamentos.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Preparo do solo; Distribuição radicular; Milho.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000300004

EFEITO DAS DIETAS CONTENDO CANA-DE-AÇÚCAR OU SILAGEM DE MILHO NO DESEMPENHO DE NOVILHOS EM CONFINAMENTO
Provedor de dados: 65
Autores: Brondani,Ivan Luiz; Restle,João.
RESUMO O experimento constou de 2 tratamentos. T1 - Concentrado mais cana-de-açúcar mais uréia e T2 - Concentrado mais silagem de milho. O Concentrado foi de igual composição e sua quantidade foi fixa para os dois tratamentos. A uréia foi adicionada ao T1 para que as duas dietas ficassem isonitrogenadas (12% de proteína bruta). Foram utilizados doze novilhos da raça Charolês, com idade média de 30 meses e peso médio inicial de 297,5kg. Os animais foram mantidos em confinamento até que a média de peso dos mesmos no tratamento atingisse aproximadamente 420kg. O ganho médio diário de peso foi de 1,12 e 1,46kg para T1 e T2 (P&lt;0,0016), respectivamente. O consumo de alimentos (MS) foi de 9,69 e 9,97kg/ dia (P&amp;gt;0,5693) e a conversão alimentar foi de 8,65...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Confinamento cana-de-açúcar; Silagem de milho.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000100013

MICORRIZAS
Provedor de dados: 65
Autores: Antoniolli,Zaida Ines; Kaminski,João.
As micorrizas são associações entre fungos da classe Zigomicetes e raízes de plantas vasculares, ocorrendo nos mais diversos ecossistemas terrestres. De acordo com a morfoanatomia podem ser dos tipos ecto, ectoendo e endomicorrizas. Os fungos endomicorrizicos vesículo-arbusculares (fMVA), ordem Glomales, formam associações com penetração inter e intracelular das hifas e produzem estruturas fungicas (arbúsculos e vesículas) na região do córtex das raízes. São simbiontes obrigatórios. Estimulam o crescimento das plantas aumentando substancialmente a absorção de fósforo, zinco e cobre em solos com disponibilidade subótima. O caráter da associação pode ser mutualístico, neutralístico ou, raramente, parasítico, dependendo dos fatores internos, espécies de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Micorrizas; Micorriza vesículo-arbuscular; MVA; Taxonomia de micorrizas.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000300013

LEVANTAMENTO DAS CARACTERÍSTICAS MICROBIOLÓGICAS DA ÁGUA POTÁVEL CONSUMIDA NA CIDADE DE POTIRENDABA - SP
Provedor de dados: 65
Autores: Hoffmann,Fernando Leite; Cruz,Crispin Humberto Garcia; Vinturim,Tânia Maria.
RESUMO Foram analisadas 14 amostras de água potável provenientes dos poços e reservatórios responsáveis pelo abastecimento da cidade de Potirendaba - SP. Das amostras analisadas 35,7% não reuniram as características necessárias para serem consideradas como água própria para consumo humano. Foram também detectados os pontos de contaminação e sugeridas algumas medidas para seu controle.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Água potável; Características microbiológicas.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000100011

MILHO DOCE
Provedor de dados: 65
Autores: Storck,Lindolfo; Lovato,Cláudio.
RESUMO O milho doce, originado de mutação do milho normal, é um milho especial para o consumo humano na forma de milho verde. No Brasil, este tipo de milho é um tanto desconhecido. Dado seu enorme potencial de consumo e de fonte de renda para os produtores hortigranjeiros, sua divulgação é oportuna e se faz necessária. Esta revisão trata da importância, da caracterização genética com implicações no melhoramento, do cultivo, consumo e conservação pós-colheita, principalmente, nos aspectos que o diferenciam do milho normal.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Milho doce; Genética; Melhoramento; Fisiologia.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000200012

GERMINAÇÃO DE SEMENTES DE MILHO TRATADAS COM FONTES E DOSES DE ZINCO E BORO
Provedor de dados: 65
Autores: Ribeiro,Nerinéia Dalfollo; Santos,Osmar Souza dos.
Com o objetivo de avaliar o poder germinativo das sementes de milho tratadas com fontes de zinco e boro, durante o armazenamento, foi conduzido um experimento no Departamento de Fitotecnia da Universidade Federal de Santa Maria, no período de outubro de 1989 a junho de 1990. Os tratamentos constituíram um fatorial 2x8, com os híbridos AG 64 e C 408 e os níveis zero, 60g/ha Zn + 2g/ha B das fontes Diol, Triol e Biocrop, 90g/ha Zn + 3g/ha B das fontes Diol e Triol, 60g/ha Zn e 2g/ha B da fonte Biocrop. Foram realizados testes de germinação em rolo de papel, logo após o tratamento das sementes e aos 30, 143 e 210 dias. As fontes zinco e boro Biocrop, isoladas e combinadas, não diferiram da testemunha, mostrando-se viáveis para o tratamento das sementes. A...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Milho; Tratamento de sementes; Zinco; Boro; Germinação.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000300012

COMPONENTES E COMPOSIÇÃO QUÍMICA DO RESÍDUO DE LIMPEZA DO ARROZ E SUA UTILIZAÇÃO NA ALIMENTAÇÃO DE NOVILHAS LEITEIRAS
Provedor de dados: 65
Autores: Olivo,Clair Jorge; Ruviaro,Claiton; Brum,Ana Elisa Silveira de; Du Bois,Augusto Henrique Carlos; Ritter,Henrique; Schmidt,Marcus Carlos.
RESUMO Este experimento, conduzido em Santa Maria - RS, foi realizado objetivando estudar a composição, qualidade do resíduo de limpeza do arroz e sua utilização na alimentação de novilhas leiteiras. Para avaliação dos componentes (grãos inteiros, grãos chochos, grãos quebrados, cascas, palhas, sementes de capim arroz, impurezas, pó e pequenas partículas) e sua composição química foram utilizadas amostras de resíduo de limpeza do arroz (pós-secagem) oriundos da região de abrangência de Santa Maria (RS), em dois anos consecutivos. Os resultados demonstraram diferenças significativas (P&lt;0,05) em termos de proteína bruta e digestibilidade entre os componentes, mantendo-se no entanto, semelhança na composição química do resíduo entre as amostras de cada...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Resíduo de limpeza do arroz; Avaliação de subprodutos; Alimentação de novilhas leiteiras.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000200009

APROVEITAMENTO DO SORO DE QUEIJO PARA PRODUÇÃO DE METANO
Provedor de dados: 65
Autores: Manfron,Melânia Palermo; Oliveira,Antonio Joaquim de.
RESUMO O objetivo deste trabalho foi estudar a viabilidade da produção de metano através da utilização do soro oriundo da fabricação de queijos, bem como avaliar o comportamento de bactérias metanogênicas. Os biodigestores foram alimentados com soro de queijo, sem correção de pH, nas proporções de 1%, 5% e 10% do seu volume nominal e mantidos a 35° C. Foram utilizados cinco tempos de retenção (TR) e quatro sistemas de alimentação para tempos diferentes de adição de substrato. No 1° TR e 2° TR, o soro foi adicionado aos biodigestores em intervalos de 24 horas. No 3° TR a carga foi dividida em três alimentações e adicionada aos biodigestores em intervalos de 8 horas. No 4° TR foram realizadas oito alimentações diárias dos biodigestores, em intervalos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodigestores; Digestão anaeróbica; Tempo de retenção; Produção de meta no; Soro de queijo.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000100012

DIAGNÓSTICO DE LITÍASE ATRAVÉS DA CISTOGRAFIA COM DUPLO CONTRASTE EM CANINO
Provedor de dados: 65
Autores: Godoy,Carmem Lice Buchmann de; Wheeler,Juan Thomas; Pellegrini,Luiz Carlos de; Silva,Cândido Fontoura da.
RESUMO Relata-se um caso de cistolitíase em canino. Descreve-se a técnica utilizada para o exame radiológico, faz-se referência aos meios de contraste indicados, à composição química do cálculo e ao procedimento terapêutico.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Cistografia; Urolitíase; Duplo contraste.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000200010

INFLUÊNCIA DE ÉPOCAS DE SEMEADURA SOBRE O DESENVOLVIMENTO DA PLANTA, RENDIMENTO E QUALIDADE FISIOLÓGICA DE SEMENTES DE RABANETE
Provedor de dados: 65
Autores: Andriolo,Jerônimo Luiz; Buriol,Galileo Adeli.
RESUMO Com o objetivo de determinar as exigências bioclimáticas para o crescimento e desenvolvimento da planta, o rendimento, germinação e vigor das sementes produzidas, foram realizadas semeaduras de rabanete, cv. Saxa, nas datas de 12/ 06, 10/07, 20/08 e 29/09, em 1986, e de 02/06, 15/07, 21/08 e 20/09, em 1987, em Santa Maria, RS. Utilizou-se o delineamento experimental de blocos casualizados, com quatro repetições e população de 129 e 26 plantas na área útil, respectivamente em 1986 e 1987. Determinou se as datas de ocorrência da emergência, pendoamento, floração e maturação e o rendimento, germinação e vigor das sementes. Os resultados indicaram que a temperatura do ar e o elemento que mais influencia o crescimento e o desenvolvimento da planta. O...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rabanete; Épocas de semeadura; Rendimento de sementes; Qualidade de sementes; Temperatura base; Soma térmica.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000100006

RENDIMENTO DE GRÃOS, ÍNDICE DE COLHEITA E COMPONENTES DO RENDIMENTO DE TRÊS CULTIVARES DE ARROZ IRRIGADO
Provedor de dados: 65
Autores: Paranhos,Juçara Terezinha; Marchezan,Enio; Dutra,Luiz Marcelo Costa.
RESUMO O experimento foi conduzido em solo classificado como Planos-solo da Unidade de Mapeamento Vacacaí, no ano agrícola de 1986/87, no Campus da Universidade Federal de Santa Maria-RS. O objetivo do trabalho foi relacionar o rendimento de grãos, componentes do rendimento e índice de colheita de três cultivares de arroz irrigado (EEA 406, BLUEBELLE e BR-409), e que apresentam características morfológicas distintas quanto ao potencial de rendimento. O delineamento experimental foi o de blocos ao acaso com cinco repetições, sendo que os tratamentos foram constituídos pelas três cultivares. Os maiores rendimentos de grãos foram alcançados pelas cultivares BR-IRGA 409 e EEA 406, equivalentes entre si. A cultivar BLUEBELLE teve o menor rendimento de grãos,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rendimento de grãos; Índice de colheita; Componentes do rendimento arroz.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000200002

ESCALA PARA AVALIAÇÃO DA SEVERIDADE DE MANCHA DE MICOSFERELA EM MORANGUEIRO
Provedor de dados: 65
Autores: Balardin,Ricardo Silveiro; Verona,Luiz Augusto; Rebelo,José Angelo.
Foi elaborada escala de 1 a 5, com base na severidade (% de área foliar afetada), para avaliação da reação de germoplasma de morangueiro à mancha de micosferela por Mycosphaerella fragariae.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Morangueiro; Avaliação de severidade; Micosferela.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000300011

CITOGENÉTICA DE TRIGO E TRITICALES IRRADIADOS COM 60Co
Provedor de dados: 65
Autores: Manara,Núblea Teresa Felkl; Manara,Wilson; Baptistela,Vera Lúcia Dalcin; Ghani,Nadja Lídia; Tedesco,Solange Bósio.
RESUMO Foi estudado o comportamento meiótico de uma cultivar de trigo (RS1) e dois triticales (TSA1 X S - 8017 e TSA1 X Jacuí), irradiados com 60Co para detectar variabilidade quanto a fertilidade para fins de melhoramento. As dosagens de radiação utilizadas foram 35 e 37,5kr de 60Co para a cultivar de trigo e 30kr para os triticales. Foram avaliados o pareamento e a segregação dos cromossomos, bem como o índice meiótico, em células-mães dos grãos de pólen, nas gerações M1 e M3 utilizando-se o método do smear. Todos os genótipos avaliados apresentaram mais de 90% de suas células com pareamento normal. A segregação cromossômica mostrou variação entre os genótipos. O índice meiótico indicou que o trigo irradiado com menor dosagem de radiação apresentou a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Citogenética; Trigo; Triticale; Irradiação; 60Co.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000100002

INFLUÊNCIA DA UTILIZAÇÃO DE PASTAGENS DE INVERNO SOBRE A HABILIDADE MATERNA DE VACAS DE CORTE
Provedor de dados: 65
Autores: Ribeiro,Edson Luis de Azambuja; Restle,João; Silva,José Henrique Souza da; Pires,Cleber Cassol.
RESUMO Este trabalho teve como principal objetivo verificar o efeito da utilização de pastagem cultivada de inverno, por diferentes períodos, sobre a habilidade materna de vacas de corte. Foram utilizadas um total de 77 vacas Charolês e Aberdeen Angus com primeira cria ao pé, submetidas aos seguintes tratamentos: T1-Pastagem natural; T2 - Pastagem cultivada em setembro e outubro; T3 - Pastagem cultivada por duas horas diárias em julho e agosto; T4 - Pastagem cultivada por duas horas diárias em julho e agosto + pastagem cultivada em setembro e outubro. Com exceção do período em que os animais estavam em pastagem cultivada, como determinava cada tratamento, eles permaneceram juntos na mesma área de pastagem natural. A produção média diária de 1 leite das...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gado de corte; Produção de leite; Composição do leite; Ganho de peso; Peso ao desmame; Pastagem cultivada.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000100014

OCORRÊNCIA E DURAÇÃO DAS TEMPERATURAS MÍNIMAS DIÁRIAS DO AR PREJUDICIAIS À FECUNDAÇÃO DAS FLORES DO ARROZ EM SANTA MARIA, RS: .II - ESTIMATIVA DO NÚMERO DIÁRIO DE HORAS COM TEMPERATURAS BAIXAS
Provedor de dados: 65
Autores: Estefanel,Valduino; Buriol,Galileo Adeli; Schneider,Flavio Miguel; Heldwein,Arno Bernardo.
O presente trabalho objetivou testar os modelos analíticos utilizados por ANGELOCCI et al (1979), HELDWEIN (1983) e os propostos com ajustes para o verão de Santa Maria (Santa Maria, I, II e III) para estimar o número diário de horas com temperatura do ar ≤ 10, 11, 12, 13, 14, 15, 16 e 17,0°C, para os meses de dezembro, Janeiro, fevereiro e março para Santa Maria, RS. A comparação entre os valores obtidos diretamente dos termogramas e os estimados por cinco modelos analíticos (ANGELOCCI et al, 1979; HELDWEIN,1983; Santa Maria I, II e III) foi feita em função dos valores médios diários de horas dos dias com temperaturas baixas, coeficientes de determinação, linear e angular da equação de 1° grau entre os valores reais e os estimados. Verifica-se que é...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Horas de frio de verão; Arroz; Fecundação de flores.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000300001

RAIVA ANIMAL: CASUÍSTICA DO CENTRO DE DIAGNÓSTICO VETERINÁRIO DA UNIVERSIDADE FEDERAL DE SANTA MARIA ENTRE OS ANOS DE 1983 a 1990
Provedor de dados: 65
Autores: Oliveira,Clóvis de; Weiblen,Rudi; Canabarro,Terezinha Flores.
RESUMO Descreve-se 186 casos suspeitos de raiva animal enviados ao Centro de Diagnóstico Veterinário da Universidade Federal de Santa Maria-RS, Brasil, entre os anos de 1983 a 1990. O material enviado (cérebro), era proveniente de diferentes regiões do Estado sendo submetido a três provas diagnósticas: imunofluorescência direta (IFD), prova biológica (inoculação em camundongos lactentes) e histopatologia. Das 185 amostras testadas pela IFD, 30 (16,12%) apresentaram resultado positivo. Pela inoculação em camundongos das 101 amostras testadas, 10 (9,90%) apresentaram resultado positivo, enquanto pelo histopatológico, de 163 amostras testadas, 29(17,79%) mostraram-se positivas.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Raiva; Métodos de diagnóstico.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000100010

AVALIAÇÃO DOS MEIOS PBS E WHITTEN NO CULTIVO DE MORULAS DE Mus musculus
Provedor de dados: 65
Autores: Bernardi,Mari Lourdes; Mezzalira,Alceu; Rubin,Mara Iolanda Batistella; Bertani,Giovani; Kreutz,Luiz Carlos.
RESUMO A fim de estabelecer um parâmetro para a avaliação da viabilidade após o descongelamento, os resultados do cultivo de embriões frescos de camundongos, no meio PBS Modificado sem a adição de C02, foram comparados aos resultados obtidos após o cultivo no meio de Whitten Modificado em atmosfera com 5% de C02. Foram coletadas 1458 mórulas provenientes de fêmeas Mus musculus da cepa Suíço Albina CF 1, previamente superovuladas com 6-8UI de eCG e 6-8UI de HCG, com intervalo de 48 horas. Destas, 1051 foram cultivadas em PBS Modificado acrescido de 20% de SFB, a 37°C e 95% de umidade. As restantes 407 foram cultivadas no meio de Whitten Modificado, acrescido de 3% de BSA, a 37°C, 95% de umidade e 5% de C02. As avaliações foram realizadas com 24h de cultivo,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Meios de cultivo; Camundongos; Mórulas; Tampão fosfato; Tampão bicarbonato.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000200008

INFLUÊNCIA DA ÉPOCA DE SEMEADURA SOBRE O RENDIMENTO E QUALIDADE FISIOLÓGICA DE SEMENTES DE PEPINO
Provedor de dados: 65
Autores: Andriolo,Jerônimo Luiz; Heldwein,Arno Bernardo.
RESUMO Semeaduras de pepino, cv. Meio Comprido Fortuna, foram realizadas nas datas de 06/10, 01/12 e 04/01, no ano de 1987/ 88 e de 17/10, 14/11 e 12/12, no ano de 1988/89, no Campo Experimental do Departamento de Fitotecnia da UFSM, com o objetivo de determinar o rendimento, germinação e vigor das sementes produzidas. O delineamento experimental utilizado foi de blocos casualizados, com quatro repetições e 20 plantas na área útil das parcelas (5m²). Determinou-se a data de ocorrência e a duração dos subperíodos fenológicos da semeadura ate o inicio da floração feminina das plantas e desta ate o inicio da maturação dos frutos. Após a colheita realizou-se a contagem do número de frutos produzidos e a determinação do rendimento, germinação e vigor das...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pepino; Épocas de semeadura; Rendimento de sementes; Qualidade de sementes.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000100005

COMPARAÇÃO ENTRE DOIS MÉTODOS DE ESCOVAÇÃO PARA ANTISSEPSIA DAS MÃOS DOS COMPONENTES DA EQUIPE CIRÚRGICA
Provedor de dados: 65
Autores: Grumadas,Carmen Esther Santos; Raiser,Alceu Gaspar; Paiva,Maria de Graça de Souza; Wouk,Antônio Felipe de Figueiredo; Albuquerque,Antonio Jorge Dreon de; Souza,Felipe Pohl de; Badke,Manoel Renato Teles.
Foi selecionada uma amostra composta por 16 acadêmicos do Curso de Medicina Veterinária da Universidade Federal de Santa Maria, para que fossem verificadas possíveis diferenças entre dois métodos de escovação das mãos dos componentes da equipe cirúrgica. Os métodos comparados foram o da escovação anatômica e o cronológico com escovação ininterrupta das unhas e cutículas durante três minutos, associando a massagem com antisséptico na mão, antebraço e cotovelo. Foi utilizada água corrente e solução de iodo polivinilpirrolidona a 10% em ambos os métodos. Cada braço foi submetido à colheita de amostras para cultura bacteriológica em três regiões: cutícula do dedo médio; espaço interdigital entre polegar e indicador e cotovelo. Foram avaliados três tempos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antissepsia das mãos; Cirurgia; Iodo polivinil-pirrolidona.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000300006

INTERSEXUALIDADE EM HUSKY SIBERIANO: RELATO DE UM CASO
Provedor de dados: 65
Autores: Loreto,Élgion Lúcio da Silva; Schoenau,Luciana Silveira Flores; Flores,Renato Zamora.
RESUMO Hermafroditismo e pseudo-hermafroditismo são fenômenos relativamente raros em cães. Descreve-se aqui um possível caso de pseudo-hermafroditismo masculino. O cão em estudo apresentava genitália ambígua, sendo tratado até os quatro meses de idade como fêmea. O estudo da cromatina do X em mucosa bucal foi negativo e o cariótipo de sangue periférico apresentou 78, XY cromossomos. A análise radiológica evidenciou uma uretra de trajeto feminino e a presença de uma estrutura piriforme compatível com vagina cranial, o que justificava a presença de incontinência urinária. Com relação a aspectos etológicos, o animal manifestava comportamento masculino.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Intersexualidade; Pseudo-hermafroditismo; Genitália ambígua; Incontinência urinária.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000200011

O USO DE ENXERTO AUTÓGENO CÓRTICO-ESPONJOSO HETEROTÓPICO NA OSTEOSÍNTESE DE MANDÍBULA COM PERDA DE SEGMENTO EM CÃES
Provedor de dados: 65
Autores: Raiser,Alceu Gaspar; Rahal,Sheila Canevese; Santos,Murilo Nogueira dos.
RESUMO Vinte e um cães sem raça definida com idade entre 6 meses e 7 anos, peso médio de 10kg foram submetidos à fratura iatrogênica da mandíbula com perda de segmento de aproximadamente 1cm. A reconstituição foi feita mediante transplante autógeno heterotópico e imobilização com pino intramedular ou diferentes tipos de circlagem. A principal causa relacionada às falhas foi a necrose térmica conseqüente à secção da mandíbula com serra vibratória.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fratura de mandíbula; Enxerto ósseo; Cirurgia de cão.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000100009

AVALIAÇÃO DA VARIAÇÃO DE IMUNOGLOBULINA SÉRICA APÓS PLASMOTERAPIA EM POTROS PURO SANGUE DE CORRIDA
Provedor de dados: 65
Autores: Luz,Inês Nicoloso Castro da; Corte,Flávio Desessards De La; Alda,Joaquin Lopez de; Silva,Carlos Antonio Mondino.
Cinqüenta éguas Puro Sangue de Corrida (PSC) e seus produtos foram utilizados como material deste trabalho. Verificou-se os níveis de imunoglobulinas (Ig) séricas dos produtos antes e após a aplicação de plasma pelo teste da turvação pelo sulfato de zinco (TSZ) avaliado no espectrofotômetro ou visualmente, pelas proteínas totais e pela eletroforese. Os potros foram tratados com plasma endovenoso, porém, o volume máximo utilizado (2000ml) não aumentou significativamente os níveis de Ig. A elevação obtida foi compatível com o volume aplicado.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Potro recém-nascido; Plasmoterapia; Munodeficiência.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000300009

TESTE DE GERMINAÇÃO EM PORONGO: Lagenaria siceraria (Mol.) Standi
Provedor de dados: 65
Autores: Bisognin,Dilson Antonio; Irigon,Diana Lisakovski; Martinazzo,Alcimar Antonio.
RESUMO O experimento foi conduzido no Laboratório Didático de Análise de Sementes, da Universidade Federal de Pelotas, RS, com o objetivo de determinar as condições ideais de temperatura e substrato para o teste de germinação em sementes de porongo, bem como o número de dias para a primeira contagem e o período de duração do mesmo. Os tratamentos foram formados pelas combinações das temperaturas 25 °C e 30 °C constantes e 20 - 30°C alternadas, e substratos de papel germitest, umedecido numa proporção de água (ml) de 2,0, 2,5 e 3,0 vezes o seu peso seco, e areia peneirada, esterilizada, seca ao ar e umedecida com 270ml de água para cada 3kg. Utilizaram-se 200 sementes (4 x 50) por tratamento e por lote estudado (quatro) proveniente de diferentes locais da...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Teste de germinação; Porongo; Lagenaria siceraria.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000200001

OCORRÊNCIA E DURAÇÃO DAS TEMPERATURAS MÍNIMAS DIÁRIA DO AR PREJUDICIAIS À FECUNDAÇÃO DAS FLORES DO ARROZ EM SANTA MARIA, RS. l - PROBABILIDADES DE OCORRÊNCIA
Provedor de dados: 65
Autores: Buriol,Galileo Adeli; Schneider,Flávio Miguel; Estefanel,Valduino; Hoffmann,Alexandre.
RESUMO Utilizando os valores das temperaturas mínimas diárias do ar registradas na Estação Climatológica Principal de Santa Maria, RS, determinou-se as probabilidades de ocorrência do número de dias, por decêndio ou mês, das seqüências de varias durações e da duração da maior seqüência de dias consecutivos, em cada mês, com temperaturas mínimas do ar prejudiciais à fecundação das flores da cultura do arroz (Oriza sativa L.). Os resultados evidenciam que na época de floração existe risco de ocorrência de temperaturas mínimas do ar prejudiciais à fecundação das flores do arroz e que este risco é menor no mês de fevereiro.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arroz; Frio; Floração; Dano; Probabilidade.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000100003

INFLUÊNCIA DA PROTEÇÃO AMBIENTAL COM ESTUFA DE POLIETILENO TRANSPARENTE SOBRE O CRESCIMENTO E DESENVOLVIMENTO DO PIMENTÃO
Provedor de dados: 65
Autores: Andriolo,Jerônimo Luiz; Buriol,Galileo Adeli; Streck,Nereu Augusto; Fiorin,Jackson.
RESUMO Determinou-se a influência do ambiente interno de uma estufa de polietileno tipo capela sobre a produção de matéria seca dos órgãos da planta (raízes, caule, folhas e frutos), área foliar e rendimento de frutos de pimentão, cv. Cascadura Ikeda. O experimento foi conduzido no Departamento de Fitotecnia da UFSM, em Santa Maria, RS, com semeaduras realizadas em 05/09/89, em ambiente natural, e em 19/04/90, 04/05/90 e 26/07/90, no interior da estufa. Os parâmetros de crescimento foram determinados em intervalos de 14 dias e as variáveis meteorológicas foram registradas diariamente durante todo o período de experimentação. Os resultados mostraram que o crescimento das partes vegetativas aéreas da planta e o número de frutos foram mais elevados no...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crescimento; Pimentão; Estufa; Capsicum annuum.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000200004

INSOLAÇÃO E RADIAÇÃO SOLAR NA REGIÃO DE SANTA MARIA, RS: DISPONIBILIDADE E VARIABILIDADE
Provedor de dados: 65
Autores: Buriol,Galileo Adeli; Estefanel,Valduino; Schneider,Flávio Miguel; Berlato,Moacir Antonio.
RESUMO A disponibilidade e a variabilidade da insolação e da densidade de fluxo da radiação solar global incidente foram determinadas para vários locais da região de Santa Maria, RS. Utilizaram-se dados diários destes elementos climáticos, registrados nas estações experimentais de Silvicultura da Boca do Monte (Santa Maria), Fitotécnica de Júlio de Castilhos e de Forragicultura de São Gabriel da Secretaria da Agricultura e Abastecimento e das estações meteorológicas de Santa Maria (cidade) e Departamento de Fitotecnia (Santa Maria) pertencentes ao Instituto Nacional de Meteorologia. Concluiu-se que a disponibilidade de insolação e de densidade de fluxo da radiação solar global incidente de Júlio de Castilhos é maior que a de São Gabriel e a de Santa Maria,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Radiação solar; Insolação; Disponibilidade; Variabilidade; Probabilidade.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000200005

RISCOS DE OCORRÊNCIA DE TEMPERATURAS MÍNIMAS DO AR PREJUDICIAIS AOS CULTIVOS AGRÍCOLAS NA REGIÃO DE SANTA MARIA, RS
Provedor de dados: 65
Autores: Estefanel,Valduíno; Schneider,Flávio Miguel; Buriol,Galileo Adeli; Didoné,Ivo Antonio.
Utilizando-se dados meteorológicos diários registrados em Julio de Castilhos, Santa Maria e São Gabriel determinaram-se as datas prováveis de ocorrência das primeiras e das últimas temperaturas mínimas do ar iguais ou menores que -7°C, -6°C, ... e +7°C, a 5cm do solo relvado e a 5cm do solo desnudo. Obtiveram-se tabelas com as datas prováveis de ocorrência das primeiras e das últimas temperaturas acima citadas, considerando diversos níveis de probabilidades. Constatou-se que, em média, a data provável de ocorrência da primeira temperatura menor ou igual a determinado nível térmico a 5cm do solo desnudo acontece 6,4 dias após ter ocorrido a 5cm do solo relvado e 39 dias antes de ocorrer no abrigo meteorológico. Já a data provável de ocorrência da última...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Temperatura mínima do ar; Temperatura mínima de relva.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000300002

DIAGNÓSTICO DE Anaplasma marginale UTILIZANDO-SE SANGUE COAGULADO PARA A DETERMINAÇÃO DA PARASITEMIA
Provedor de dados: 65
Autores: Stobbe,Neusa Saltiél; Fortes,Elinor; Silva,Nilton Rogério Santos da; Chaplin,Eunice Leonora; Paiva,Maria de Graça de Souza; Araújo,Flávio Antônio Pacheco de.
Um bovino esplenectomizado foi inoculado com os agentes da Tristeza Parasitária e observado, durante 40 dias, quanto à temperatura corporal, hematócrito e quadro clínico. Amostras de sangue, com e sem anticoagulante, foram coletadas da jugular nos 8°, 10°, 12°, 22°, 24° e 26° dias pós-inoculação, confeccionando-se lâminas de sangue através das técnicas de Distensão Fina, Distensão de Gota de Coágulo e Esfregaço de Fragmento de Coágulo. O corante de Giemsa puro e diluído foi utilizado para coloração das lâminas. A parasitemia por Anaplasma marginale foi mensurada através de percentagem em todas as lâminas e utilizada para a avaliação do desempenho das técnicas. Os resultados obtidos foram satisfatórios, principalmente quando utilizado o corante diluído,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Distensão; Gota de coágulo; Fragmento de coágulo; Giemsa; Hemozoários.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000300008

TORACOTOMIA EM BLOCO NO CÃO
Provedor de dados: 65
Autores: Moura,Amaury Regis de; Wheeler,Juan Thomás; Fialho,Sérgio Amaro Guimarães; Stainki,Daniel Roulin; Natalini,Cláudio Corrêa; Lopes,Sonia Terezinha dos Anjos.
A técnica de toracotomia em bloco foi realizada em 12 cães com um regime anestésico constando de acetilpromazina e tiopental sódico. Após a intubação orotraqueal foi utilizado um minirespirador automático à pressão positiva intermitente. A parede torácica foi aberta com uma incisão em forma de "U invertido", ficando a base da letra "U" paralela a coluna vertebral, distando 4 a 5cm aproximadamente da mesma e mais duas perpendiculares, sendo a primeira mais cranial, no espaço compreendido entre a quarta e quinta costelas, estendendo-se de cima para baixo até a junção costo-condral; a segunda, mais caudal, no espaço intercostal entre a nona e décima costelas, estendendo-se até a inserção da porção muscular do diafragma. A diérese de pele e músculos foi...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cirurgia canina; Toracotomia.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000300007

ÍNDICE DE ÁREA FOLIAR DE TRÊS CULTIVARES DE ARROZ IRRIGADO
Provedor de dados: 65
Autores: Paranhos,Juçara Terezinha; Dutra,Luiz Marcelo Costa; Marchezan,Enio; Aude,Maria Isabel da Silva.
RESUMO O experimento foi conduzido em solo classificado como Planossolo, Unidade de Mapeamento Vacacaí, ano agrícola de 1986/87, no Campus da Universidade Federal de Santa Maria-RS. O objetivo do trabalho foi avaliar o comportamento do índice de área foliar em três cultivares de arroz irrigado (EEA 406, BLUEBELLE e BR-IRGA 409), as quais apresentam características morfológicas distintas. O delineamento experimental foi o de blocos ao acaso com cinco repetições, sendo que os tratamentos foram constituídos pelas três cultivares. A cultivar EEA 406 apresentou os maiores valores de área foliar e índice de área foliar (IAF), em todos os estádios de desenvolvimento, sendo seguida das cultivares BLUEBELLE e BR-IRGA 409. Para as três cultivares o tamanho do limbo...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Área foliar; Índice de área foliar; Arroz.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000100004

ARTROPLASTIA CAPSULAR DE COLONNA MODIFICADA PARA CÃES: ADAPTAÇÃO AO TRATAMENTO DA DISPLASIA E LUXAÇÃO COXOFEMORAL
Provedor de dados: 65
Autores: Wheeler,Juan Thomas; Natalini,Cláudio; Raiser,Alceu Gaspar; Pellegrini,Luis Carlos de.
RESUMO A técnica de artroplastia capsular de Colonna padronizada para cães por WHEELER et al (1991) foi adaptada em 10 cães: cinco portadores de displasia, quatro de luxação e um com displasia e luxação coxofemoral. No pré e pós-operatório os animais foram avaliados clinica e radiologicamente. Um deles foi sacrificado e submetido a estudo anátomo e histopatológico. A técnica adotada proporcionou alívio da dor. A recuperação funcional foi excelente em 50% dos casos e boa nos demais.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diplasia coxofemoral; Luxação coxofemoral; Cirurgia canina.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000200006

ARTROPLASTIA CAPSULAR DE COLONNA MODIFICADA PARA CÃES: PADRONIZAÇÃO DA TÉCNICA
Provedor de dados: 65
Autores: Wheeler,Juan Thomas; Raiser,Alceu Gaspar; Santos,Murilo Nogueira dos; Natalini,Cláudio Correia.
RESUMO Em oito cães sadios, considerados livres de displasia procurou-se adaptar a técnica de artroplastia capsular de Colonna, utilizada em humanos para o tratamento da luxação coxofemoral congênita. Os animais foram submetidos às avaliações clínica e radiológica pré e pós-operatório e após período de observação variável, sacrificados para estudo anátomo-histopatológico. A técnica cirúrgica consistiu em abordagem crâneo-dorsal da articulação coxofemoral, aprofundamento do acetábulo, cobrimento da cabeça femoral com pericárdio homogêneo, reconstituição da cápsula articular e estruturas abordadas. O período de recuperação funcional variou de 20 a 45 dias. Os resultados obtidos mostraram melhora na congruência entre a cabeça femoral e fossa acetabular.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Articulação coxofemoral; Displasia coxofemoral; Cirurgia canina; Artroplastia.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000100008

EFEITO DA TRIFLURALINA SOBRE A ATIVIDADE BIOLÓGICA EM DOIS SOLOS
Provedor de dados: 65
Autores: Giracca,Ecila Maria Nunes; Antoniolli,Zaida Inês; Pasqualetto,Antonio; Hoff,Flávio; Miotti,Jorge.
A influência da Trifluralina 600 CE sobre a atividade microbiana e taxa de liberação de CO2 foi estudada com amostras de solos da Unidade de Mapeamento São Pedro e Cruz Alta, incubados a 80% da capacidade de campo ou saturados, com tratamentos equivalendo a 2 e 4 litros por hectare, com cinco repetições, durante 140 dias. A cada sete dias foram efetuadas titulações de CO2 liberado. Posteriormente foi executado bioensaio com Sorghum bicolor L. Moench para análise da persistência do produto no solo. O herbicida nas dosagens usadas não afetou a atividade microbiana. A persistência do herbicida mostrou diferença significativa entre plântulas anormais para os dois solos em capacidade de campo, o mesmo não ocorrendo quando a germinação foi em solos saturados.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trifluralina 600 CE; Atividade microbiana; CO2 evoluído.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000300005

DIAGNÓSTICO DE GESTAÇÃO POR ULTRA-SONOGRAFIA
Provedor de dados: 65
Autores: Neves,Jairo Pereira.
Apresentam-se as vantagens, os princípios fundamentais da técnica e a situação atual do diagnóstico de gestação por ultra-sonografia nas espécies bovina, eqüina e ovina. Entre as vantagens da ultra-sonografia para o diagnóstico de gestação destaca-se a precocidade, a inocuidade, o diagnóstico de prenhez gemelar e a possibilidade de estimar a viabilidade embrionária. O diagnóstico de gestação por ultra-sonografia possibilita um reconhecimento precoce e seguro desse estado com reflexos econômicos positivos e imediatos.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diagnóstico de gestação; Ecografia; Vaca; Égua; Ovelha.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000300014

INFLUÊNCIA DA ÉPOCA DE SEMEADURA SOBRE A FENOLOGIA DAS PLANTAS, RENDIMENTO E QUALIDADE FISIOLÓGICA DE SEMENTES DE CHICÓRIA
Provedor de dados: 65
Autores: Andriolo,Jerônimo Luiz; Buriol,Galileo Adeli; Berto,James Luiz.
RESUMO Foram realizadas semeaduras de chicória, cv. Crespa, nas datas de 25/05, 18/06, 31/07 e 20/08, em 1987 e em 06/05, 30/06, 26/07 e 18/08, em 1988. Utilizou-se o delineamento experimental de blocos casualizados, com quatro repetições e espaçamento de 0,60m e 0,20m entre fileiras e plantas, respectivamente. Determinaram-se, para cada época, as datas de emergência, pendoamento, floração e maturação das plantas e o rendimento e qualidade das sementes. Também determinou-se a temperatura base de crescimento e a soma térmica para cada um dos subperíodos fenológicos. Os resultados mostraram que as melhores épocas de semeadura ocorrem nos meses de maio e junho, que o fotoperíodo crescente e as temperaturas elevadas aceleram o ciclo, reduzem o crescimento, o...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chicória; Épocas de semeadura; Rendimento de sementes; Qualidade de sementes; Temperatura base; Soma térmica.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000200003

AVALIAÇÃO DE Baculovirus anticarsia FORMULADO
Provedor de dados: 65
Autores: Silva,Mauro Tadeu Braga da.
RESUMO Na safra de 1989/90 foram conduzidos ensaios, em Cruz Alta, RS, objetivando avaliar a eficiência de Baculovirus anticarsia formulado, de diferentes origens, no controle da lagarta da soja , Anticarsia gemmatalis. Os ensaios foram delineados em blocos ao acaso, com oito tratamentos e quatro repetições, sendo o tamanho das parcelas de 6m x 10m. Entre as parcelas deixou-se 10m de bordadura e entre blocos 5m, visando evitar a contaminação pelo vírus. Usou-se nas aplicações um pulverizador costal de precisão (CO2), equipado com bicos cônicos JD 10-1, que gastou 115 litros de calda por hectare a uma pressão de 60 lb/pol². Naquele momento, as plantas de soja, cv. CEP 16-Timbó, encontravam-se no estádio V9 e com 0,7 m de altura. O numero de lagartas vivas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Baculovirus anticarsia; Anticarsia gemmatalis; Inseticida biológico; Soja.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000100001

BIODIGESTÃO ANAERÓBICA: UMA ALTERNATIVA PARA USINAS DE LATICÍNIOS
Provedor de dados: 65
Autores: Manfron,Melânia Palermo.
RESUMO O objetivo deste trabalho foi mostrar a viabilidade da utilização de biodigestores anaeróbicos na redução do DQO e DBO nos resíduos de laticínios e como fonte de energia, através da produção de metano (CH4). O processo apresenta basicamente três estágios importantes na compreensão das fermentações anaeróbicas, devido aparecer inúmeros microrganismos interatuantes na degradação do substrato. A biodigestão anaeróbica é bastante sensível à variações ambientais, o que ocasiona um desequilíbrio nas populações bacterianas afetando o rendimento e a velocidade do processo. Entretanto, hoje é uma alternativa nobre para o tratamento de efluentes líquidos industriais e, principalmente, os de usinas de laticínios que geram efluentes com elevada carga orgânica.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodigestores; Biodigestão anaeróbica; Produção de metano.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000100015

AVALIAÇÃO DA DISPONIBILIDADE E DA QUALIDADE DE UMA PASTAGEM NATURAL
Provedor de dados: 65
Autores: Rosito,Jumaida Maria; Denardin-Saldanha,Carmen Elizabeth; Uhde,Leonir Terezinha.
Este trabalho foi realizado numa área de pastagem natural de 1,5ha localizada no Campus da UFSM (Santa Maria, RS). Com o uso do Método Botanal, foram efetuados levantamentos nos meses de fevereiro, maio e outubro de 1985 e em maio de 1986. O objetivo do trabalho foi a determinação da disponibilidade total da pastagem (em kg MS/ha), a contribuição dos seus principais componentes para esta disponibilidade e a determinação da qualidade da pastagem através dos teores de PB, fibra detergente neutra (FDN) e lignina encontrados. Com relação aos componentes da pastagem, Paspalum notatum destacou-se pela sua contribuição, que se manteve praticamente constante nos quatro períodos de amostragem. Axonopus affinis evidenciou uma queda nos valores de contribuição para a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pastagem natural; Qualidade da pastagem; Composição botânica; Produção da pastagem.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000300010

INFLUÊNCIA DO PRÉ-TRATAMENTO E DA CONCENTRAÇÃO DE LACTOSE NA VIABILIDADE DE MÓRULAS Mus musculus CONGELADAS PELO MÉTODO ULTRA-RÁPIDO
Provedor de dados: 65
Autores: Mezzalira,Alceu; Rubin,Mara Iolanda Batistella.
RESUMO Duzentos e vinte e cinco embriões de camundongos foram congelados em vapor de nitrogênio, em quatro diferentes tratamentos. No tratamento I (n=57), os embriões foram submetidos a um pré-tratamento em glicerol 5,0, sendo posteriormente colocados em uma solução de glicerol 5,0M + lactose 0,25M. No tratamento II (n=54), o procedimento foi semelhante, porém com a utilização de 0,5M de lactose. No tratamento III (n=57), os embriões foram colocados diretamente na solução de glicerol 5,0M + lactose 0,25M. No tratamento IV (n=57), o procedimento foi semelhante ao tratamento III, porém com a utilização de lactose 0,5M. Os embriões foram mantidos por 5 minutos em cada solução, sendo em seguida envasados em grupos de 6 a 12, em palhetas de 0,25ml. O...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Congelamento ultra-rápido; Pré-tratamento; Lactose.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781991000200007