Consulta: subjectFacets:"Mussel"
Registros recuperados: 62
Data/hora: 05/06/2024 17:11:05

Содержание Zn, Cu, Pb, Cd в гонадах культивируемых Mytilus galloproincialis Lam.
Provedor de dados: 13
Autores: Челядина, Н. С.; Вялова, О. Ю.; Смирнова, Л. Л.
Показана сезонная изменчивость содержания Zn, Cu, Cd, Pb в гонадах самцов и самок. Концентрация РЬ увеличивалась с ростом массы генеративной ткани моллюска, вариабельность этого показателя выше у сам­цов. Медь в генеративной ткани самок содержалась в меньшем количестве, по сравнению с самцами, но её концентрирование стабильно на всех изучаемых стадиях гаметогенеза. Выявлены положительная корреляция между содержанием цинка и кадмия и отрицательная между содержанием цинка и свинца в гонадах мидий.
Tipo: Journal Contribution
Palavras-chave: Тяжёлые металлы; Вариабельность; Мидия; Гонады; Heavy metal; Variability; Mussel; Gonads; Black Sea Heavy metals Variability Gonads Heavy metals Gonads http://aims.fao.org/aos/agrovoc/c_2223 http://aims.fao.org/aos/agrovoc/c_34291.
Ano: 2005
URL: http://repository.ibss.org.ua/dspace/handle/99011/238

Ртуть в мидиях Mytilus galloprivincialis Lam. из бухт крымского побережья Черного моря
Provedor de dados: 13
Autores: Рябушко, В. И.; Егоров, В. Н.; Козинцев, А. Ф.; Костова, С. К.; Шинкаренко, В. К.
Исследовано содержание ртути в мягких тканях и раковинах мидии Mytilus galloprovincialis Lam. из бухт Крымского побережья Черного моря в зависимости от индивидуального возраста моллюсков. Линейные размеры мидии (L, мм) в зависимости от времени (t, годы) хорошо аппроксимируются экспоненциальной функцией: L = L0 + b lg t, а концентрация ртути (C, мкг/гсух): C = C0 + b1 lg t. Коэффициенты уравнения отражают различия в экологических условиях обитания животных и уровнях загрязнения среды. Индивидуальный возраст двустворчатых моллюсков является хорошим интегральным биомаркером для изучения распределения токсикантов, в частности ртути, в популяциях мидий из различных районов шельфа Черного моря. Зависимость между содержанием ртути в мягких тканях мидий из...
Tipo: Journal Contribution
Palavras-chave: Мидия; Возраст; Ртуть; Черное море; Mussel; Age; Mercury; The Black Sea Age Mercury Age Mercury http://aims.fao.org/aos/agrovoc/c_186 http://aims.fao.org/aos/agrovoc/c_4751.
Ano: 2002
URL: http://repository.ibss.org.ua/dspace/handle/99011/144

Особенности содержания гликогена и липидов у мидий  в зоне берегоукрепительных сооружений  Одесского прибрежья
Provedor de dados: 13
Autores: Иванович, Г. В.; Лисовская, В. И.
Изучали особенности содержания гликогена и липидов (суммарных) и их взаимосвязь в теле мидий Mytilus galloprovincialis Lmk в обрастаниях гидротехнических сооружений в районе мыса Ланжерон Одесского залива. Весной происходит накопление гликогена, и в июне – июле его содержание достигает максимума –  3.3 – 4.9 % на сырую массу; во вторую половину лета оно уменьшается до 1,2 – 1.6 %, а к осени снова восстанавливается, но менее интенсивно – до 1.8 – 3.3 % на сырую массу. Наибольшее содержание липидов  наблюдается в мае (в среднем 1.3 % на сырую массу) и в октябре (1.5 %). Летом оно минимально: в июле – августе в среднем 0,8 %. Накопление и расходование гликогена и липидов связано с функциональными процессами жизненного цикла в организме мидий. Наилучшее...
Tipo: Journal Contribution
Palavras-chave: Мидии Mytilus galloprovincialis; Гликоген; Липиды; Одесский залив; Mussel; Ontogenesis; Power budget; Somatic production; Generative production; Reproduction effort.
Ano: 2004
URL: http://repository.ibss.org.ua/dspace/handle/99011/134

Особенности фильтрации мидии в опытах с «двухслойной водой» и влияние сезонного термоклина на мидийные поселения  в Чёрном море
Provedor de dados: 13
Autores: Заика, В. Е.
Иловая форма мидии Mytilus galloprovincialis обитает в Чёрном море на глубинах, где проходит скачок плотности, вызванный сезонным термоклином. В лаборатории создавали скачок плотности (с помощью «двухслойной воды» по солёности) и проверяли эффект фильтрации мидий. Установлено, что струя из выводного сифона моллюска не нарушает границы между двумя слоями, даже когда она расположена всего в 10 см над мидией, причем разность солёности двух слоёв не превышала 0.5 ‰. Мидия очищает от взвеси только нижний слой воды. Обсуждены экологические следствия.
Tipo: Journal Contribution
Palavras-chave: Мидия; Фильтрация; Скачок плотности; Mussel; Filtration; Density jamp Density Filtration Density Filtration http://aims.fao.org/aos/agrovoc/c_2186 http://aims.fao.org/aos/agrovoc/c_2900.
Ano: 2007
URL: http://repository.ibss.org.ua/dspace/handle/99011/298

Сезонная динамика содержания тяжёлых металлов в мидии (Mytilus galloprovincialis) из бухты  Казачья Чёрного моря
Provedor de dados: 13
Autores: Козинцев, А. Ф.
Исследована сезонная динамика концентрации Cd, Cu, Fe, Ni, Pb и Zn в мягких тканях и раковинах двустворчатых моллюсков Mytilus galloprovincialis Lam. из Казачьей бухты Чёрного моря. Показано, что для концентраций железа, никеля, кадмия и свинца в мягких тканях мидий достоверно существует  периодичность изменений в течение года. Концентрации железа, никеля, кадмия и цинка достоверно увеличиваются, а концентрация свинца уменьшается с ростом температуры воды. Для раковин моллюсков получена периодичность изменения концентраций железа, кадмия и цинка. Концентрация химических элементов в мягких тканях мидий достоверно выше, чем в раковинах. Казачья бухта по санитарно-гигиеническим нормам концентрации исследованных тяжёлых металлов является перспективной...
Tipo: Journal Contribution
Palavras-chave: Мидия; Тяжёлые металлы; Сезонная динамика; Чёрное море; Mussel; Heavy metals; Season dynamics; Black Sea Heavy metals Mussel culture Seasonal variations Heavy metals http://aims.fao.org/aos/agrovoc/c_2223.
Ano: 2006
URL: http://repository.ibss.org.ua/dspace/handle/99011/274

Таксономический состав и количественное развитие мейобентоса рыхлых грунтов в условиях марикультуры Mytilus galloprovincialis Lam., 1819
Provedor de dados: 13
Autores: Лысых, Н. М.
Изучена сезонная динамика таксономического состава и плотности поселений мейобентоса рыхлых грунтов в условиях мидийного хозяйства в б. Казачья (район г. Севастополя, Черное море). Отмечены представители 16 крупных таксонов при доминировании Nematoda, Harpacticoida и Foraminifera. Обнаружены пики плотности поселения мейобентоса для исследованных станций под мидийной фермой в летний, осенний и зимний периоды, в контрольной точке - в весенне-летний период. Отличия в таксономическом составе мейобентоса района мидийной фермы и контрольной станции не наблюдались. Полученные данные по таксономической структуре, количественному развитию мейобентоса в целом и его лидирующих групп, показателей соотношения численности нематод и копепод (N/C ratio) свидетельствуют об...
Tipo: Journal Contribution
Palavras-chave: Мейобентос; Нематодно-копеподное соотношение; Мидия; Марикультура; Meiobenthos; Nematode / copepod ratio; Mussel; Mariculture Mussel culture Meiobenthos Meiobenthos http://aims.fao.org/aos/agrovoc/c_12481.
Ano: 2005
URL: http://repository.ibss.org.ua/dspace/handle/99011/231

О соотношении соматической и генеративной продукции у черноморской мидии  (Mytilus galloprovincialis Lam.) в онтогенезе
Provedor de dados: 13
Autores: Золотницкий, А. П.
Исследованы энергетический баланс и изменение соматической (Ps) и генеративной (Pg) продукции у черноморской мидии (Mytilus galloprovincialis Lam) в онтогенезе. Показано, что в ходе индивидуального развития, параллельно с возрастанием генеративной прироста, происходит компенсаторное снижение величины соматической продукции. Связь между указанными переменными описывается уравнением: Ps = 0.35Pg -0..38. Прирост органического вещества раковины на протяжении 3-летнего цикла выращивания также характеризовался слабым отрицательным трендом. Впервые приведены данные о величине репродуктивного усилия (RE) у черноморской мидии и его соотношению с удельной генеративной продукцией (PG). В процессе роста PG колеблется возле величины, равной 0.28, тогда как RE...
Tipo: Journal Contribution
Palavras-chave: Мидия; Онтогенез; Энергетический бюджет; Соматическая продукция; Генеративная продукция; Репродуктивное усилие; Mussel; Ontogenesis; Power budget; Somatic production; Generative production; Reproduction effort Mussel culture.
Ano: 2004
URL: http://repository.ibss.org.ua/dspace/handle/99011/133

Ртуть в мидиях Mytilus galloprivincialis Lam. из бухт крымского побережья Черного моря
Provedor de dados: 13
Autores: Шинкаренко, В. К.; Егоров, В. Н.; Рябушко, В. И.; Козинцев, А. Ф.; Костова, С. К.
Исследовано содержание ртути в мягких тканях и раковинах мидии Mytilus galloprovincialis Lam. из бухт Крымского побережья Черного моря в зависимости от индивидуального возраста моллюсков. Линейные размеры мидии (L, мм) в зависимости от времени (t, годы) хорошо аппроксимируются экспоненциальной функцией: L = L0 + b lg t, а концентрация ртути (C, мкг/гсух): C = C0 + b1 lg t. Коэффициенты уравнения отражают различия в экологических условиях обитания животных и уровнях загрязнения среды. Индивидуальный возраст двустворчатых моллюсков является хорошим интегральным биомаркером для изучения распределения токсикантов, в частности ртути, в популяциях мидий из различных районов шельфа Черного моря. Зависимость между содержанием ртути в мягких тканях мидий из...
Tipo: Journal Contribution
Palavras-chave: Мидия; Возраст; Ртуть; Черное море; Mussel; Age; Mercury; The Black Sea Age Mercury Age Mercury http://aims.fao.org/aos/agrovoc/c_186 http://aims.fao.org/aos/agrovoc/c_4751.
Ano: 2002
URL: http://repository.ibss.org.ua/dspace/handle/99011/144

Поселение черноморской мидии на бетонной набережной Севастопольской бухты (Чёрное море)
Provedor de dados: 13
Autores: Соловьева, О. В.
Впервые исследовано поселение мидий на набережной Севастопольской бухты в районе между мысами Николаевским и Хрустальным. Получены данные о численности, биомассе, размерном распределении и фильтрационной активности данного вида в исследуемом районе в теплое и холодное время года.
Tipo: Journal Contribution
Palavras-chave: Мидия; Биомасса; Размерный состав; Численность; Севастопольская бухта; Чёрное море; Mussel; Biomass; Dimensional structure; Abundance; Sevastopol bay; Black Sea Abundance Biomass Mussel culture Biomass http://aims.fao.org/aos/agrovoc/c_926.
Ano: 2005
URL: http://repository.ibss.org.ua/dspace/handle/99011/237

О некоторых закономерностях продукционных процессов в популяциях черноморской мидии (Mytilus  galloprovincialis Lam.), выращиваемой на разных типах искусственных субстратов
Provedor de dados: 13
Autores: Золотницкий, А. П.
Исследованы закономерности протекания продукционных процессов в популяциях мидии (Mytilus galloprovincialis Lam.), выращиваемых на разных типах искусственных субстратах - коллекторах. Показано, что амплитуда и скорость продуцирования биомассы мидии в значительной степени определяются архитектоникой искусственных субстратов, а также начальной плотностью осевшего спата. Дана количественная характеристика продукции, элиминации и стационарной биомассы (урожая) моллюсков в процессе их культивирования в различных районах Черного моря.
Tipo: Journal Contribution
Palavras-chave: Мидия; Популяция; Продукция; Элиминация; Искусственный субстрат; Черное море; Mussel; Population; Production; Elimination; Artificial substratum; Black Sea.
Ano: 2006
URL: http://repository.ibss.org.ua/dspace/handle/99011/307

Морфо-функциональные характеристики эритроидных элементов гемолимфы Anadara inaequivalvis в условиях экспериментальной аноксии
Provedor de dados: 13
Autores: Новицкая, Н. В.; Солдатов, А. А.
Swelling and lysis of hemolymph erythroid elements of Anadara inaequivalvis were observed under experimental anoxia conditions. Mainly late generation cells was destroyed. It’s accompanied by increase of geometrical parameters of erythrocytes and their nucleuses.
Tipo: Book Section
Palavras-chave: Mussel; Anoxia; Hemolymph; Erythroid elements.
Ano: 2010
URL: http://repository.ibss.org.ua/dspace/handle/99011/1862

Пространственно-временная динамика численности личинок черноморских Bivalvia в весенний период и ее связь с гидрофизическими особенностями района
Provedor de dados: 13
Autores: Казанкова, И. И.; Немировский, М. С.
Установлено, что фенология личинок Bivalvia в поверхностных и глубинных горизонтах в прибрежных водах Севастополя различна, что может быть связано с особенностями температурного режима верхних и нижних слоев, а также наличием в обследуемом районе двух разнонаправленных течений. Обнаружено соответствие вертикального распределения планктонной и бентосной частей популяций двустворок. В целом, для весеннего периода характерна новая генерация личинок Mytilus galloprovincialis (скальных и иловых популяций), Cerastoderma glaucum, Acanthocardia pauсicostata, Parvicardium exiguum, Mya arenaria, Abra sp., Fabulina fabula и Loripes lucinalis. Великонхи A. pauсicostata, P. exiguum, M. arenaria, а также Modiolus phasealinus в черноморском планктоне идентифицированы...
Tipo: Journal Contribution
Palavras-chave: Планктон; Личинки Bivalvia; Мидия; Акантокардиум; Динамика численности и вертикальное распределение личинок; Plankton; Larvae of Bivalvia; Mussel; Acanthocardium; Dynamiс of larval number; Vertical larval distribution Plankton Plankton http://aims.fao.org/aos/agrovoc/c_5950.
Ano: 2003
URL: http://repository.ibss.org.ua/dspace/handle/99011/156

Влияние антропогенного фактора на гидрохимические условия, мидию Mytilus galloprovincialis Lam. и её эндосимбионты в Балаклавской бухте
Provedor de dados: 13
Autores: Попов, М. А.; Ковригина, Н. П.; Мачкевский, В. К.; Лозовский, В.Л.; Козинцев, А. Ф.
The variability range and average sizes of hydrochemical parameters during 2000-2007 in the Balaklava bay and near shore is presented. An influence of the anthropogenic factor on decline of mussel grown rates and also on change of number and qualitative structure of their endosymbionts is shown.
Tipo: Book Section
Palavras-chave: Balaklava bay; Hydrochemical parameters; Mussel; Endosymbionts.
Ano: 2010
URL: http://repository.ibss.org.ua/dspace/handle/99011/1880

Biological effects of the "Erika" oil spill on the common mussel (Mytilus edulis)
Provedor de dados: 5
Autores: Bocquene, Gilles; Chantereau, Sebastien; Clerendeau, Christelle; Beausir, Emilie; Menard, Dominique; Raffin, Bernard; Minier, Christophe; Burgeot, Thierry; Leszkowicz, Annie Pfohl; Narbonne, Jean-françois.
A 3-year survey was made of several biological markers in mussels (Mytilus edulis) exposed in situ to the oil that came ashore after the wreck of the "Erika" tanker on the Brittany (France) coast in December 1999. The mussel response was assessed using a set of 7 biomarkers, most of them related to the metabolism of organic contaminants. After a series of validation tests, data was evaluated for only 5 biomarkers: acety1cholinesterase (AChE), glutathione S-transferase (GST), catalase (CAT), malondialdehyde (MDA) and deoxyribonucleic acid (DNA) adducts. No significant reductions in GST or CAT levels were observed, levels of DNA adducts and MDA were high during the 6 months immediately following the accident and levels of AChE were significantly lower during...
Tipo: Text
Palavras-chave: Mytilus edulis; Mussel; Biomarkers; Monitoring; Survey; PAH; Polycyclic aromatic hydrocarbon; Oil spill.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-403.pdf

Novel observations underlying the fast growth of suspension-feeding shellfish in turbid environments: Mytilus edulis
Provedor de dados: 5
Autores: Hawkins, Ajs; Smith, Rfm; Bayne, Bl; Heral, Maurice.
For the tirst time for any benthic filter-feeder, this study documents each component process of nutrient acquisition through natural tidal variations of food availabillty. The organic content of seston available during both neap and spring tides in the bay of Marennes-Oléron. France, decreased from 28 to 8 % with mcreasing seston concentration from 10 to about 90 mg total particulate mass 1(1). Throughout this tidal variation, the blue mussel Mylilus edulis L. cleared more water of particles as seston availability increased. Rejection of fillered material as pseudofaeces prior to ingestion remained a constant fraction of about 0 .93 x the mass of filtered material, so that ingestion rate showed no signs of stabilising at even the highest food...
Tipo: Text
Palavras-chave: Seston composition; Tidal variation; Mussel; Mytilus edulis; Feeding behaviour; Selection efficiency; Absorption efficiency; Net energy balance.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00040/15080/12419.pdf

Réseau de Pathologie des Mollusques - Secteurs Nord-Loire - Année 1999. Bilan des travaux de la cellule zoosanitaire de La Trinité-sur-Mer
Provedor de dados: 5
Autores: Martin, Anne-genevieve; Tige, Gilbert; Hirata, Toshio; Le Coguic, Yvette; Chollet, Bruno; Robert, Maeva; Thebault, Anne.
Within the context of the mollusc pathology monitoring network, this report assesses the follow-up and work done by the zoosanitary unit of Trinité-sur-Mer on the whole of the French farming and bed areas of the North Loire for the year 1999.
Tipo: Text
Palavras-chave: Herpes virus; Pathology; Mortality; Britanny (France); Normandy; Clam; Abalone; Cockle; Mussel; Pacific cupped oyster; European flat oyster; Herpès virus; Pathologie; Mortalité; Bretagne; Normandie; Naissain; Palourde; Ormeau; Coque; Moule; Huître creuse; Huître plate.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/rapport-1921.pdf

The impact of groundwater discharges on mercury partitioning, speciation and bioavailability to mussels in a coastal zone (Reprinted from Marine Chemistry, vol 104, pg 143-155, 2007)
Provedor de dados: 5
Autores: Laurier, Fabien; Cossa, Daniel; Beucher, Charlotte; Breviere, Emily.
The Mussel Watch program conducted along the French coasts for the last 20 years indicates that the highest mercury concentrations in the soft tissue of the blue mussel (Mytilus edulis) occur in animals from the eastern part of Seine Bay on the south coast of the English Channel, the "Pays de Caux". This region is characterized by the presence of intertidal and submarine groundwater discharges, and no particular mercury effluent has been reported in its vicinity. Two groundwater emergence systems in the karstic coastal zone of the Pays de Caux (Etretat and Yport with slow and fast water percolation pathways respectively) were seasonally sampled to study mercury distribution, partitioning and speciation in water. Samples were also collected in the...
Tipo: Text
Palavras-chave: Mussel; Estuaries; Groundwater seepage; Bioavailability; Speciation; Mercury.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-4704.pdf

PCDD/F and PCB multi-media ambient concentrations, congener patterns and occurrence in a Mediterranean coastal lagoon (Etang de Thau, France)
Provedor de dados: 5
Autores: Castro Jimenez, J; Deviller, Genevieve; Ghiani, A; Loos, R; Mariani, G; Skejo, H; Umlauf, G; Wollgast, J; Laugier, Thierry; Heas Moisan, K; Leaute, Frederique; Munschy, Catherine; Tixier, Celine; Tronczynski, Jacek.
Ambient concentrations, congener patterns and multi-media distribution of PCDD/Fs and PCBs were determined in air, water, sediment and mussels in a semi-enclosed marine ecosystem (Thau lagoon, France). Sigma 2,3,7,8-PCDD/F and Sigma 7ICES PCB air concentrations (0.2-1.4 and 31-57 pg m(-3), respectively) were typical of rural areas. Concentrations in the water column were very low for PCDD/Fs (163-476 fg L-1) and low for PCBs (138-708 pg L-1). PCDD/F and PCB concentrations found in surface sediment (0.15-1.6 and 2.5-33 ng g(-1) d.w., respectively) and mussel (13-21 pg g(-1) d.w. and 10-39 ng g(-1) d.w., respectively) were medium levels. PCDD/F congener patterns observed in air, water particulate phase and sediments were similar suggesting direct coupling...
Tipo: Text
Palavras-chave: Water column; Mussel; Air Sediment; POPs.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4807.pdf

Improving detoxification Efficiency of PSP-contaminated oysters (Crassostrea gigas Thunberg)
Provedor de dados: 5
Autores: Lassus, Patrick; Bardouil, Michele; Baron, Regis; Berard, Jean-baptiste; Masselin, Pierre; Truquet, Philippe; Pitrat, Jp.
Shellfish production, and production of marine bivalve molluscs in particular, is the main form of marine aquaculture in the European Union, with a production estimated at 1,200,000 tons in 1999 (Food and Agricultural Organization). Moreover, aquaculture production is rapidly expanding throughout Europe and is becoming a major economic resource in developing areas such as Northern Greece, Ireland, and northwestern Spain. These shellfish, mainly mussels, oysters, and clams, are produced in a natural environment. Due to variations in their environment, these otherwise edible species may however become unsafe for human consumption. Potential problems are amplified due to the nature of shellfish themselves: as they are filter feeders, they consume large...
Tipo: Text
Palavras-chave: Detoxification; PSP toxin; Toxic algae; Bioaccumulation; Contaminant; Clam; Mussel; Oyster; Shellfish culture.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-2271.pdf

Repartition de la chlorophylle a dans l'etang de Thau: Richesse nutritive pour les mollusques d'elevage
Provedor de dados: 5
Autores: Tournier, Henri; Pichot, Yves.
This study concerns the determination of phytoplanktonic pigment concentrations in the lagoon of Thau at 14 sampling stations which were surveyed 36 times during 1986. The evolution of the main pigment chlorophyll a)is described for the whole year. The object of this work is to determine if the phytoplanktonic pigment abundance is related to the nutritive richness of the lagoon water where oysters and mussels are bred.
Tipo: Text
Palavras-chave: Oyster culture; Mussel; Nutritive value; Photosynthetic pigments; Chlorophylls.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/publication-1762.pdf

Exposure of marine mussels Mytilus spp. to polystyrene microplastics: Toxicity and influence on fluoranthene bioaccumulation
Provedor de dados: 5
Autores: Paul-pont, Ika; Lacroix, Camille; Gonzalez Fernandez, Carmen; Hegaret, Helene; Lambert, Christophe; Le Goic, Nelly; Frere, Laura; Cassone, Anne-laure; Sussarellu, Rossana; Fabioux, Caroline; Guyomarch, Julien; Albentosa, Marina; Huvet, Arnaud; Soudant, Philippe.
The effects of polystyrene microbeads (micro-PS; mix of 2 and 6 μm; final concentration: 32 μg L−1) alone or in combination with fluoranthene (30 μg L−1) on marine mussels Mytilus spp. were investigated after 7 days of exposure and 7 days of depuration under controlled laboratory conditions. Overall, fluoranthene was mostly associated to algae Chaetoceros muelleri (partition coefficient Log Kp = 4.8) used as a food source for mussels during the experiment. When micro-PS were added in the system, a fraction of FLU transferred from the algae to the microbeads as suggested by the higher partition coefficient of micro-PS (Log Kp = 6.6), which confirmed a high affinity of fluoranthene for polystyrene microparticles. However, this did not lead to a modification...
Tipo: Text
Palavras-chave: Microplastics; Fluoranthene; Mussel; Depuration; Oxidative system.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00344/45502/45848.pdf

Étude de la formation d'adduits et de 8-oxodguo à l'ADN de moule, Mytilus sp: perspectives d'utilisation dans le milieu marin en tant que biomarqueurs de génotoxicité des hydrocarbures aromatiques polycycliques
Provedor de dados: 5
Autores: Akcha, Farida.
In the aim to develop biomarkers of genotoxicity for the biomonitoring of the marine environment,the formation of DNA adducts and oxidized DNA bases was studied for the sentinel organism, Mytilus sp, following exposure to B[a]P via the trophic supply. DNA adducts and 8-oxo-7,8-dihydro-2'-désoxyguanosine (8-oxodGuo) were respectively measured by 32P post-labeling technique and high performance liquid chromatography coupled to electrochemical detection. The developped model of exposure was validated for the realisation of toxicological studies in Mytilus sp. The bioavailability of B[a]P for the exposed organisms and its biotransformation resulted in variations in most of the measured enzymatic biomarkers of exposure. Such an exposure allowed the expression...
Tipo: Text
Palavras-chave: Moule; B[a]P; Adduits; 8-oxodGuo; Biomarqueurs; Mussel; B[a]P; Adducts; 8-oxodGuo; Biomarkers.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00076/18770/16349.pdf

Impact on non target organisms of anti-marine wood-borer treatments. Evaluation of stress imposed by treatments on organisms from test sites
Provedor de dados: 5
Autores: Goulletquer, Philippe; Geairon, Philippe; Faury, Nicole; Razet, Daniel; Soletchnik, Patrick; Gras, Paul; Adessi, L.
In European waters, significant economic damages to wooden structures are caused by bivalves molluscs and crustaceans. Treatments like copper-chrome-arsenic mixtures (CCA) were designed to prevent settlement of these wood borer species. However, limited and conflicting evidence regarding the toxicity to non-target organisms are available in the literature. This report aims to provide insights regarding the CCA leachates' toxicity to an important aquaculture species, the blue mussel Mytilus edulis for which much information on normal and stressed physiology is available for purposes of comparisons. The mussels are usually considered as a particularly suitable species for biological monitoring (Smaal and Widdows, 1994). To address the CCA leachate issue, two...
Tipo: Text
Palavras-chave: Bivalvia; Mussel; Mytilus edulis; Copper-chrome-arsenic (CCA); Treatment; Feeding; Absorption.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00043/15437/12788.pdf

Farmed bivalve loss due to seabream predation in the French Mediterranean Prevost Lagoon
Provedor de dados: 5
Autores: Richard, Marion; Forget, Fabien; Mignucci, Alexandre; Mortreux, Serge; Le Gall, Patrik; Callier, Myriam; Weise, Am; Mckindsey, Cw; Bourjea, Jerome.
Bivalve predation by seabream has been observed worldwide and is a major concern for bivalve farmers. Farmed bivalve-seabream interactions must be better understood to ensure the sustainability of bivalve aquaculture. The objectives of this study were to characterize gilthead seabream Sparus aurata presence in a bivalve farm in Prevost Lagoon (Mediterranean Sea) using acoustic telemetry and to evaluate monthly losses of mussels Mytilus galloprovincialis and oysters Crassostrea gigas due to seabream predation over an 18 mo period inside the farm and at an unprotected experimental platform. Large (281 to 499 mm TL) seabream were more commonly detected in the bivalve farm than were small (200 to 280 mm TL) seabream. In contrast to small seabream, 90% of large...
Tipo: Text
Palavras-chave: Shellfish culture; Sparus aurata; Size; Acoustic telemetry; Crassostrea gigas; Mytilus galloprovincialis; Oyster; Mussel.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00663/77515/79299.pdf

Modélisation de la bioaccumulation de métaux traces (Hg, Cd, Pb, Cu et Zn) chez la moule, Mytilus galloprovincialis, en milieu méditerranéen
Provedor de dados: 5
Autores: Casas, Stellio.
Monitoring coastal contamination of trace metals using bivalve molluscs as quantitative bioindicators is widely used in many international monitoring programs. The bioaccumulation of metal within an organism results from the interaction between physiological (growth, loss of weight, absorption, accumulation), chemical (metal concentration, speciation, bioavailability) and environmental factors (temperature, SPM, chlorophyll). By utilizing the parameters above in this study, it appears that modeling metal dynamics in marine mussels is a reliable tool. The model allows understanding the bioaccumulation process which results from the interactions between biological, chemical and environmental factors. One of the objective of this study was to couple a...
Tipo: Text
Palavras-chave: Biomonitoring; Dynamic Energy Budget; Model; Trace metals; Bioaccumulation; Mytilus galloprovincialis; Mussel; Bioindicator; Surveillance; Budget énergétique dynamique; Modèle; Métaux traces; Bioaccumulation; Mytilus galloprovincialis; Moule; Bioindicateur.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/these-356.pdf

Differential distribution and defence involvement of antimicrobial peptides in mussel
Provedor de dados: 5
Autores: Mitta, Guillaume; Vandenbulcke, Franck; Noel, Thierry; Romestand, Bernard; Beauvillain, Jean Claude; Salzet, Michel; Roch, Philippe.
In previous papers, we characterised 3 types of 4-kDa, cysteine-rich, cationic antimicrobial peptides: MGDs (for Mytilus galloprovincialis defensins), mytilins and myticins, which are abundant in the mussel hemocytes. In the present work, me revealed a differential distribution of the cells expressing the different genes. In addition, using confocal and electron microscopy, we confirmed that defensins and mytilins were partially located in different sub-types of circulating hemocytes although the peptides can be located in the same cell, and even in the same granule. We also demonstrated that mytilins exert their microbicidal effect within the cells through the process of phagosome-mytilin granule fusion leading to the co-location of ingested bacteria and...
Tipo: Text
Palavras-chave: Innate immunity; Hemocyte; Mussel; Myticin; Mytilin; Defensin; Antimicrobial.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/publication-413.pdf

Harmful Algal Blooms (HABs) and Black Mussel Mytilus galloprovincialis (Linnaeus, 1758) Culture in Izmir Bay (Iskele-Urla)-Turkey: Preliminary Results on the Annual Feeding Cycle Using a Qualitative Approach
Provedor de dados: 5
Autores: Lok, Aynur; Metin, Gulnur; Acarli, Sefa; Goulletquer, Philippe.
Considering the filtration capacity of mussels to qualitative particle selection, our study focused directly on ingested species by assessing mussel stomach content of various size classes (1-5 cm) over a year (August 97-June 98) rather than monitoring seawater samples. Different size of mussels (1, 2, 3, 4, 5 cm in length) was sampled monthly from the sides of fish cage floats in Urla-Izmir. Stomach contents were analyzed under microscope and different plankton species were grouped taxonomically. Bacillariophycea, Dinophyceae, Oxyphceae, Euglenophyceae as phytoplanktonic species were observed in the stomach contents of mussels as well as zooplanktonic species including Ciliata, Cladocera, Copepod, bivalve and gastropod larvae. Over the sampling period,...
Tipo: Text
Palavras-chave: Mussel; Mytilus galloprovincialis; Harmful; Phytoplankton; Stomach content; Aegean Sea.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00032/14329/11621.pdf

Comparaison des performances d'élevage de moules en 4 sites mytilicoles de la baie de Vilaine, de février 2000 à février 2001
Provedor de dados: 5
Autores: Mazurie, Joseph; Bouget, Jean-francois; Claude, Serge; Fleury, Pierre-gildas; Langlade, Aime.
Mussel samples have been placed in plastic-mesh bags hung on wood poles (« bouchots »), at 4 locations of a mussel culture area in the bay of Vilaine (South Brittany, France). They have been monitored for one year, from February 2000 to February 2001. The recorded growth have been rather fast (plus 1.2 g per month between April and September), and mortalities moderate (between 15% to 25%), with better results in southern stations, further from the estuary.  Among the physico-chemical parameters recorded, the most striking were very low salinities (below 10 g/l) recorded for days, after heavy rains. They provoqued a valve closure of mussels (recorded by a « valvometer »). Some physiological indicators being tested (muscle force and hermeticity) seemed to...
Tipo: Text
Palavras-chave: Valve movements; Hermeticity; Muscle strength; Mortality; Growth; South Brittany; Bay of Vilaine; Mytilus edulis; Mussel; Écartements valvaires; Herméticité; Force musculaire; Mortalité; Croissance; Bretagne sud; Baie de Vilaine; Mytilus edulis; Moule.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/rapport-6373.pdf

Comparative study on the contamination and decontamination of Japanese oyster Crassostrea gigas and blue mussel Mytilus edulis by oxytetracycline and oxolinic acid
Provedor de dados: 5
Autores: Pouliquen, Hervé; Le Bris, Hervé; Buchet, Vincent; Pinault, Louis.
Marine fish farms use many antibacterial agents to prevent or fight bacterial diseases. The major part of the orally supplied drugs reach the environment, either directly due to excessive feeding and reduced appetite of the cultured fish, or indirectly after passing through the fish. Some of the drugs entering the environment may be taken up by bivalves. Comparative contamination and decontamination of Japanese oyster Crassostrea gigas and blue mussel Mytilus edulis were studied when these bivalves were kept during 10 d in seawater containing oxytetracycline (OTC) or oxolinic acid (OA) at concentrations of 0.15 and 1.50 mg l(-1). After the 10 d exposure at the seawater concentrations of 0.15 and 1.50 mg l(-1), OTC and OA concentrations in bivalve tissues...
Tipo: Text
Palavras-chave: Mussel; Oxolinic acid; Oxytetracycline; Oyster.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00282/39359/39437.pdf

Effects of dissolved mercury on embryogenesis, survival and growth of Mytilus galloprovincialis mussel larvae
Provedor de dados: 5
Autores: Beiras, R; His, Edouard.
The effects of Hg concentrations ranging from 0 (control) to 1024 mu g l(-1) upon embryogenesis, survival and growth of Mytilus galloprovincialis mussel larvae were investigated. Embryogenesis was abnormal in 50% of the individuals at 10 mu g l(-1). The 48 h LC(50) for D-shaped, early umbonate, late umbonate and eyed larvae were 51, 164, 322 and 383 pg l(-1) respectively. The LC(50) was an allometric function of ash-free dry weight with exponent b = 0.60. Larval growth was significantly reduced after 6 d exposure to 4 mu g Hg l(-1) and after 10 d exposure to 2 mu g l(-1). No significant differences in lethal or sublethal sensitivity to Hg were found between M. galloprovincialis and previously studied Crassostrea gigas embryos and larvae. The implications...
Tipo: Text
Palavras-chave: Mercury; Mytilus; Mussel; Larva; Growth; Embryo; Bioassay; Ecotoxicology.
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00258/36946/35665.pdf

Bilan des travaux de la cellule zoosanitaire de La Trinité Sur Mer. Réseau de Pathologie des Mollusques.  Secteurs Nord-Loire. Année 1998
Provedor de dados: 5
Autores: Martin, Anne-genevieve; Tige, Gilbert; Hirata, Toshio; Kuntz, Gregoire; Le Coguic, Yvette.
Within the context of the mollusc pathology monitoring network, this report assesses the follow-up and work done by the zoosanitary unit of Trinité-sur-Mer on the whole of the French farming and bed areas of the North Loire for the year 1998.
Tipo: Text
Palavras-chave: Herpes virus; Pathology; Mortality; Britanny (France); Normandy; Clam; Abalone; Cockle; Mussel; Pacific cupped oyster; European flat oyster; Herpès virus; Pathologie; Mortalité; Bretagne; Normandie; Naissain; Palourde; Ormeau; Coque; Moule; Huître creuse; Huître plate.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/rapport-1920.pdf

Impact on non target organisms of anti-marine wood-borer treatments. Evaluation of stress imposed by treatments on organisms form test sites - Final Report
Provedor de dados: 5
Autores: Goulletquer, Philippe; Geairon, Philippe; Faury, Nicole; Razet, Daniel; Soletchnik, Patrick; Adessi, L.; Gras, Paul.
Experiments were canied out to assess the copper-chrome-arsenic (CCA) trealment effeets on the Blue mussel Mytilus edulis physiology. Experimental design included two complementary approaches: 1) scope for growth esrimates based upon the energy balance between respiration energy loss and energy gained from feeding processes. 2) a biological early waming system for valve behavior monitoring under CCA exposures. Various temperature range (seasonal effeet). physiological status (mature &amp; immature mussels) as weil as CCA concentrations (from 0 to 48kg/m3) and rime exposure were tested. Significant monality rates for the experimental mussel populations were recorded in alI experimental modalities but the 2kg/m3 CCA treatment concentration. Overall results...
Tipo: Text
Palavras-chave: Bivalvia; Mussel; Mytilus edulis; Copper-Chrome-Arsenic (CCA); Treatment; Feeding; Absorption.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00077/18795/16372.pdf

Bilan de l'état zoosanitaire des mollusques en Méditerranée française : 1988-2001
Provedor de dados: 5
Autores: Pichot, Yves.
The fact that molluscs from the Mediterranean have benefited from a privileged zoosanitary condition compared to those of the other French coasts has for a long time limited the control of farms and natural fields in this area. It is only in the early 70's, because of the pathological problems and risks observed in other areas that Mediterranean molluscs started to be stictly under zoosanitory control. This control was however limited until the early 90's. With the implementation of the European directives 91/67 and 95/70 for the protection of molluscs against diseases and their propagation, with the creation in 1992 of REPAMO- IFREMER (with a watch unit in the Mediterranean), the control of molluscs in the Mediterranean has considerably improved. Since...
Tipo: Text
Palavras-chave: Méditerranée; Zoosanitaire; Mortalité; Huître plate; Ostrea edulis; Huître creuse; Crassostrea gigas; Moule; Mytilus galloprovincialis; Palourde; Tapes decussatus; Telline; Donas trunculus; Mediterranean; Zoosanitary; Mortality; Flat oyster; Ostrea edulis; Pacific cupped oyster; Crassostrea gigas; Mussel; Mytilus galloprovincialis; Clam; Tapes decussatus; Coquina clam; Donax trunculus.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00145/25579/23717.pdf

The impact of groundwater discharges on mercury partitioning, speciation and bioavailability to mussels in a coastal zone
Provedor de dados: 5
Autores: Laurier, Fabien; Cossa, Daniel; Beucher, Charlotte; Breviere, Emily.
The Mussel Watch program conducted along the French coasts for the last 20 years indicates that the highest mercury concentrations in the soft tissue of the blue mussel (Mytilus edulis) occur in animals from the eastern part of Seine Bay on the south coast of the English Channel, the "Pays de Caux". This region is characterized by the presence of intertidal and submarine groundwater discharges, and no particular mercury effluent has been reported in its vicinity. Two groundwater emergence systems in the karstic coastal zone of the Pays de Caux (Etretat and Yport with slow and fast water percolation pathways respectively) were seasonally sampled to study mercury distribution, partitioning and speciation in water. Samples were also collected in the...
Tipo: Text
Palavras-chave: Mussel; Estuaries; Groundwater seepage; Bioavailability; Speciation; Mercury.
Ano: 2007
URL: https://archimer.ifremer.fr/doc/2007/publication-3113.pdf

L'éthoxyrésorufine-o-déethylase, les adduits à l'ADN et les mocronuclei dans les organismes marins. Application à la surveillance des effets biologiques sur les côtes françaises
Provedor de dados: 5
Autores: Burgeot, Thierry.
Three biomarkers [ethoxyresorufm-o-deethylase (EROD), DNA adducts and micronuclei (MN) were studied for biomonitoring applications along French coasts. EROD was developed at an experirnental stage in two pilot sites, Seine Bay and Fos sur Mer, using the dab (Limanda limanda), dragon et (Callionymus lyra), red mullet (Mullus barbatus) and comber (Serranus hepatus) as target species. Higbest EROD activity was observed in the subestuarial part of Seine Bay and at the stations closest to sources of pollution from Cortiou and Fos sur Mer. The suitable number of fish for detection of a significant difference between two EROD activities was deterrnined as a function of sampling variance and a preselected statistical power. A preliminary study on hepatocytes in a...
Tipo: Text
Palavras-chave: Ethoxyrésorufine-o-déethylase; Adduits à l'ADN; Micronuclei; Poisson; Moule; Huître; Biosurveillance; Ethoryresorufin-o-deethylase; DNA adducts; Micronuclei; Fish; Mussel; Oyster; Biomonitoring.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00443/55462/56984.pdf

Effect of Azadinium spinosum on the feeding behaviour and azaspiracid accumulation of Mytilus edulis
Provedor de dados: 5
Autores: Jauffrais, Thierry; Contreras, Andrea; Herrenknecht, Christine; Truquet, Philippe; Sechet, Veronique; Tillmann, Urban; Hess, Philipp.
Azadinium spinosum, a small toxic dinoflagellate, was recently isolated and identified as a primary producer of azaspiracid toxins (AZAs). Previous experiments related to AZA accumulation in blue mussels upon direct feeding with A. spinosum revealed increased mussel mortality and had negative effects on the thickness of the digestive gland tubules. Therefore we conducted follow up experiments in order to study effects of A. spinosum on mussel feeding behaviour. Individual assessment of mussel feeding time activity (FTA), clearance rate (CR), filtration rate (TFR), absorption rate (AR), faeces and pseudofaeces production were carried out on mussel fed either toxic (A. spinosum) or non-toxic (Isochrisis aff. galbana (T-Iso)) diets. Furthermore, AZA...
Tipo: Text
Palavras-chave: Bivalve molluscs; Mussel; Ecophysiology; AZA biotransformation; AZA accumulation; Trophic transfer; Dinoflagellate; Azaspiracid.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00090/20174/17832.pdf

Modelling spatio-temporal variability of Mytilus edulis (L.) growth by forcing a dynamic energy budget model with satellite-derived environmental data
Provedor de dados: 5
Autores: Thomas, Yoann; Mazurie, Joseph; Alunno-bruscia, Marianne; Bacher, Cedric; Bouget, Jean-francois; Gohin, Francis; Pouvreau, Stephane; Struski, Caroline.
In order to assess the potential of various marine ecosystems for shellfish aquaculture and to evaluate their carrying capacities, there is a need to clarify the response of exploited species to environmental variations using robust ecophysiological models and available environmental data. For a large range of applications and comparison purposes, a non-specific approach based on ‘generic’ individual growth models offers many advantages. In this context, we simulated the response of blue mussel (Mytilus edulis L.) to the spatio-temporal fluctuations of the environment in Mont Saint-Michel Bay (North Brittany) by forcing a generic growth model based on Dynamic Energy Budgets with satellite-derived environmental data (i.e. temperature and food). After a...
Tipo: Text
Palavras-chave: Mussel; DEB; SeaWifs; Aquaculture; Site Selection; Resource Management.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00037/14836/14537.pdf

Gill transcriptomic analysis in fast- and slow-growing individuals of Mytilus galloprovincialis
Provedor de dados: 5
Autores: Prieto, Daniel; Markaide, Pablo; Urrutxurtu, Iñaki; Navarro, Enrique; Artigaud, Sebastien; Fleury, Elodie; Ibarrola, Irrintzi; Urrutia, Miren Bego.
The molecular basis underlying the mechanisms at the origin of growth variation in bivalves is still poorly understood, although several genes have been described as upregulated in fast-growing individuals. In the present study, we reared mussel spat of the species Mytilus galloprovincialis under diets below the pseudofaeces threshold (BP) and above the pseudofaeces threshold (AP). After 3 months, F and S mussels from each condition were selected to obtain 4 experimental groups: FBP, SBP, FAP and SAP. We hypothesized that the nurturing conditions during the growing period would modify the molecular basis of their growth rate differences. To decipher the molecular mechanisms underlying the growth variation, the gill transcriptomes for the four mussel groups...
Tipo: Text
Palavras-chave: Fast-growing; Mussel; Gill; Transcriptome.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00503/61490/65293.pdf

Induction and elimination of bulky benzo[a]pyrene-related DNA adducts and 8-oxodGuo in mussels Mytilus galloprovincialis exposed in vivo to B[a]P-contaminated feed
Provedor de dados: 5
Autores: Akcha, Farida; Burgeot, Thierry; Budzinski, H; Pfohla Leszkowicz, A; Narbonne, J.
With the aim of developing biomarkers of polycyclic aromatic hydrocarbon (PAH) genotoxicity for biomonitoring of the marine environment, the formation of DNA adducts and oxidative DNA damage was studied in the sentinel organism Mytilus. Mussels M. galloprovincialis were exposed for 21 d to different doses of benzo[a]pyrene (B[a]P) (50 and 100 mg B[a]P kg(-1) dry wt mussel d(-1)) via trophic intake. The kinetics of B[a]P concentration in whole mussel tissues was determined in both groups, and a dose-response study was conducted for both gill B[a]P-related DNA adducts and 8-oxo-7, 8-dihydro-2'-deoxyguanosine (8-oxodGuo) formation in gill and digestive gland DNA. Exposure was followed by a 10 d depuration period to study mussel recovery. Although B[a]P was...
Tipo: Text
Palavras-chave: DNA repair; 8 oxodGuo; DNA adducts; Mussel; BaP.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/publication-813.pdf

Contamination chimique du milieu marin : de la mesure à l'évaluation des risques
Provedor de dados: 5
Autores: Abarnou, Alain.
This activity report entitled (“Chemical contamination of the marine environment: from measurement to risk assessment”) summarizes the main stages my career at Ifremer from November 1975 to june 2013. The first chapter deals with the seawater chlorination and chlorinated waters released into the sea, the identification and the conditions of the formation of various by-product of these processes. The second chapter concerns PCBs, their nature, their chemical analysis in environmental matrices. PCBs are considered as the best examples of persistant and bioaccumulable compounds and therefore, in all this report they are flagship contaminants to which other groups of studied substances are compared. The third chapter refers to studies performed within marine...
Tipo: Text
Palavras-chave: Chlore; Chloration de l’eau de mer; Oxydant; Bromoforme; Impact environnemental; Mécanismes réactionnels; Désinfection; Polluants organiques persistants (POP); PCB; Dioxines; HAP; PBDE; Chlordécone; Baie de Seine; Organismes marins; Moules; Poissons; Surveillance environnementale; Analyse; Bioaccumulation; Chlorine; Seawater chlorination; Oxidizing agent; Bromoform; Environmental impact; Reaction mechanisms; Disinfection; Persitsent organic pollutants (POPs); PCBs; Dioxins; PAHs; PBDEs; Chlordecone (kepone); Baie de Seine; Marine organisms; Mussel; Fish; Environmental monitoring; Chemical analysis; Bioaccumulation.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00168/27946/26237.pdf

Faecal contamination of echinoderms: first report of heavy     Escherichia coli     loading of sea urchins from a natural growing area
Provedor de dados: 5
Autores: Bouchoucha, Marc; Piquet, Jean-come; Chavanon, Fabienne; Dufresne, C.; Le Guyader, Soizick.
Although little evidence existed to support that view, European countries and in particular France, have regarded echinoderms, including sea urchins, as low risk in terms of feacal contamination. It is hypothesized that the sea urchins mode of feeding, which is based on grazing and differs from bivalve molluscs, would prevent it from concentrating high levels of Escherichia coli. Here, we monitored E. coli levels in sea urchins (Paracentrotus lividus) and in filter-feeder mussels (Mytillus galloprovincialis), collected concurrently from the same natural area over a 1-year period to verify this assumption. Sea urchins were collected on the seafloor, whereas mussels were collected from the water column at a depth of 4 m. Our results showed heavy bacterial...
Tipo: Text
Palavras-chave: E. coli; Fecal contamination; Mussel; Sea urchin; Shellfish monitoring program.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00310/42086/41400.pdf

NMR structure of mussel mytilin, and antiviral-antibacterial activities of derived synthetic peptides
Provedor de dados: 5
Autores: Roch, Philippe; Yang, Y; Toubiana, Mylene; Aumelas, A.
Mytilin is a 34-residue antibacterial peptide from the mussel Mytilus galloprovincialis, which in addition possesses in vitro antiviral activity. The three-dimensional solution structure of the synthetic mytilin was established by using 1H NMR and consists of the common cysteine-stabilized alpha beta motif close to the one observed in the mussel defensin MGD-1. Mytilin is characterized by 8 cysteines engaged in four disulfide bonds (2-27, 6-29, 10-31, and 15-34) only involving the beta-strand II. Hydrophilic and hydrophobic areas of mytilin account for 63% and 37%, respectively, a ratio very close to that of MGD-1 (64% and 36%). One linear and three cyclic fragments were designed from the interstrand loop sequence known to retain the biological activities...
Tipo: Text
Palavras-chave: Shrimp; Molluscs; Mussel; Antibacterial activity; WSSV; Viral protection; Beta hairpin structure; NMR; Mytilin; Antimicrobial peptide.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4485.pdf

A first genetic linkage map of the blue mussel Mytilus edulis
Provedor de dados: 5
Autores: Lallias, Delphine; Hecquet, Céline; Boudry, Pierre; Lapegue, Sylvie; Beaumont, Andy.
The blue mussel, Mytilus edulis, is widely distributed in the northern hemisphere, from the White Sea to the Atlantic coast of southern France, and is an economically important species (1 million tons per year, FAO, 2002). At present however, little domestication has been achieved with bivalves, in contrast to agricultural crops, livestock and horticultural species like tomatoes, where selection and production is entirely controlled by man. For bivalves, despite their economic importance, no lines with selected characteristics have been taken to the production scale. There is therefore a need to make up for lost time. Our interest in genetic mapping sprang from some results showing a genetic component to some economically important traits like growth and...
Tipo: Text
Palavras-chave: QTLs; AFLP; Genetic; Mussel; Mytilus edulis; Genetic linkage map.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/acte-3465.pdf

The French mussel industry : present status and perspectives
Provedor de dados: 5
Autores: Prou, Jean; Goulletquer, Philippe.
The French mussel industry produces around 60,000 metric tons on a yearly basis using two common species: Mytilus edulis, which is widely distributed along the Atlantic coastline, and Mytilus galloprovincialis, distributed mainly on Mediterranean shores. This production represents only half of the yearly consumption of mussels in France, leading to large imports from Spain and the Netherlands. Most imports occur between September and March, when the Atlantic production is reduced because of low meat quality due to spawning events. Although a public mussel fishery still exists, most production is based upon 3 culture techniques: on-bottom culture, longline and suspended culture, and bouchot-type culture, with the latter being developed in the l3lh century....
Tipo: Text
Palavras-chave: Mussel; On bottom culture; Suspended culture; Longline culture; French; Production; Mytilus galloprovincialis; Mytilus edulis.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/publication-2802.pdf

Etude et modélisation de la dynamique des populations de bivalves en élevage (Crassostrea gigas et Mytilus galloprovincialis) dans le bassin de Thau (Méditerranée, France) et des ascidies solitaires associées
Provedor de dados: 5
Autores: Gangnery, Aline.
The total standing stock of bivalves cultured in Thau Lagoon (France) that is mainly constituted of the Pacific oyster, Crassostrea gigas, and the Mediterranean mussel, Mytilus galloprovincialis, vary between 14,000 and 20,000 tons within a year. These variations were attributed to the rearing cycle of molluscs in the lagoon but also to their growth performances. Oysters cultured in the Thau Lagoon presented the best growth rate ever reported whereas trophic conditions are low : mean concentrations in organic particulate matter and total chlorophyll a averaged 1 mg.l-1 and 1.2 µg.l-1, respectively. The development of a growth model shows that temporal pattern (i.e. seasonality) of bivalve growth is explained by water temperature and spatial pattern is...
Tipo: Text
Palavras-chave: Lagoon ecosystem; Resource management; Rearing strategies; Production; Standing stock; Hydrobiology; Growth; Shellfish culture; Ascidiella aspersa; Mussel; Oyster; Ecosystème lagunaire; Gestion des ressources; Stratégies d'élevage; Production; Stock; Hydrobiologie; Croissance; Conchyliculture; Ascidiella aspersa; Moule; Huître.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/these-102.pdf

Genetic linkage mapping in the blue mussel Mytilus edulis and the European flat oyster Ostrea edulis, and the search for Quantitative Trait Loci of resistance to a disease in O. edulis.
Provedor de dados: 5
Autores: Lallias, Delphine.
Genetic linkage maps consist of ordering molecular markers across the genome and require a high number of markers for a good coverage of the genome. Such maps represent a framework which enables the identification and localisation of Quantitative Trait Loci (QTLs) for traits of interest, such as growth or disease resistance, with the final aim of achieving genetic improvement through marker-assisted selection (MAS). Data on bivalves are scarce. No genetic map has yet been constructed in any mussel or flat oyster species. We report construction of a preliminary genetic linkage map in the blue mussel, Mytilus edulis (n=14). Amplified Fragment Length Polymorphism (AFLP) markers were used in a mapping family containing 86 full-sibs issued from a controlled...
Tipo: Text
Palavras-chave: Microsatellite; AFLP; Mussel; Flat oyster; QTL; Genetic mapping; Microsatellite; AFLP; Moule; Huître plate; QTL; Cartographie génétique.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/these-2603.pdf

Mixotrophy in the deep sea: a dual endosymbiotic hydrothermal mytilid assimilates dissolved and particulate organic matter
Provedor de dados: 5
Autores: Riou, Virginie; Colaco, Ana; Bouillon, Steven; Khripounoff, Alexis; Dando, Paul; Mangion, Perrine; Chevalier, Emilie; Korntheuer, Michael; Santos, Raphael; Dehairs, Frank.
Bathymodiolus azoricus mussels thrive 840 to 2300 m deep at hydrothermal vents of the Azores Triple Junction on the Mid-Atlantic Ridge. Although previous studies have suggested a mixotrophic regime for this species, no analysis has yet yielded direct evidence for the assimilation of particulate material. In the present study, tracer experiments in aquaria with C-13- and N-15-labelled amino acids and marine cyanobacteria demonstrate for the first time the incorporation of dissolved and particulate organic matter in soft tissues of vent mussel. The observation of phytoplanktonic tests in wild mussel stomachs highlights the occurrence of in situ ingestion of sea-surface-derived material. Particulate organic carbon fluxes in sediment traps moored away from...
Tipo: Text
Palavras-chave: Bathymodiolus azoricus; Particulate and dissolved material; Nitrogen and carbon assimilation; Deep sea; Hydrothermal vent; Mussel.
Ano: 2010
URL: https://archimer.ifremer.fr/doc/00005/11589/8230.pdf

Multibeam sonar detection of suspended mussel culture grounds in the open sea: Direct observation methods for management purposes
Provedor de dados: 5
Autores: Brehmer, Patrice; Vercelli, Catherine; Gerlotto, Francois; Sanguinede, Fabien; Pichot, Yves; Guennegan, Yvon; Buestel, Dominique.
The exploitation of offshore mussel farms is becoming important throughout the world, but monitoring this activity remains a difficult task. Here, we propose a specific method for this purpose. A total of 140 long-lines were monitored on a mussel culture ground in the French Mediterranean Sea during four experimental surveys deploying multibeam sonar devices mounted on poles (Reson Seabat 6012, 455 kHz) on small boats. This allowed geo-referenced observations to be made of the submerged mussel long-lines, as well as three-dimensional (3D) drawings of the long-line structures and the sea bed shapes, using long-line longitudinal sonar sampling. Three sonar data-analysis methods were applied: (i) direct two-dimensional (2D) visual interpretation of raw sonar...
Tipo: Text
Palavras-chave: Management; Sonar; Open sea; Long line; Mussel.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1672.pdf

PCDD/F, PBDE, and nonylphenol contamination in a semi-enclosed bay (Masan Bay, South Korea) and a Mediterranean lagoon (Thau, France)
Provedor de dados: 5
Autores: Hong, Sang Hee; Munschy, Catherine; Kannan, Narayanan; Tixier, Celine; Tronczynski, Jacek; Moisan, Karine; Shim, Won Joon.
Chemical contamination of the coastal marine environment by polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) was assessed along with emerging contaminants such as polybrominated diphenyl ethers (PBDEs) in an industrially well-developed country (France) and a fast-developing country (Korea). Other chemicals, i.e. nonylphenol (NP) and 5 beta(H)-cholestan-3 beta-ol (coprostanol) were determined to trace industrial waste and/or domestic inputs. These compounds were analyzed in coastal sediments and mussels in two enclosed coastal water bodies: Masan Bay (South Korea) and Thau lagoon (France). The overall levels of target organic contaminants were higher in Masan Bay than in Thau lagoon. The mean concentrations of 17 PCDD/Fs,...
Tipo: Text
Palavras-chave: Waste chemical tracer; Organohalogen contaminant; Mussel; Sediment; Marine environment.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6941.pdf

Effect of food supply on the detoxification in the blue mussel, Mytilus edulis, contaminated by diarrhetic shellfish toxins
Provedor de dados: 5
Autores: Marcaillou-le Baut, Claire; Haure, Joel; Mondeguer, Florence; Courcoux, Anne; Dupuy, Beatrice; Penisson, Christian.
The objective of this study was to identify a possible effect of food on the acceleration of decontamination in blue mussels, Mytilus edulis, containing diarrhetic toxins belonging to the okadaic acid (OA) structural group. An experimental protocol was designed to describe and compare the decontamination kinetics and detoxification rates of naturally OA-contaminated mussels that had either received or not received food for three weeks. The protocol was applied in two trials (in June 2006 and June 2007, called Ker06 and Ker07), conducted one year apart on samples of mussels collected in the same area, at the same season. Okadaic acid (OA), the main lipophilic toxin produced by the toxic alga Dinophysis acuminata, was analysed over the course of the...
Tipo: Text
Palavras-chave: Mussel; Feeding; Digestive gland; Depuration; Okadaic acid; Acyl esters; Marine lipophilic biotoxins; Mass spectrometry.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00025/13650/10883.pdf

Nickel and vanadium contamination of benthic invertebrates following the "Erika" wreck
Provedor de dados: 5
Autores: Chiffoleau, Jean-francois; Chauvaud, Laurent; Amouroux, David; Barats, Aurélie; Dufour, Aurélie; Pecheyran, Christophe; Roux, Nathalie.
Levels of nickel and vanadium, trace metals found in high concentration in the oil spilled from the "Erika" tanker off Brittany (France) in December 1999 (41 +/- 1 and 87 +/- 3 mg kg(-1) respectively), have been monitored over a one-year period following this accidental event in several benthic invertebrates. Ni and V in mussels (Mytilus edulis) and oysters (Crassostrea gigas) soft tissues were analysed twice a month by graphite furnace atomic absorption spectrometry and a scallop (Pecten maximus) shell daily growth bands were sampled every three bands by laser ablation and analysed by ICP-MS for these two contaminants. Survey data for mollusc tissues were compared with reference data arising from the national monitoring database. Ni concentrations in...
Tipo: Text
Palavras-chave: Monitoring; Scallop shell; Oyster; Mussel; Vanadium; Nickel; Oil spill.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-402.pdf

Effects of dissolved mercury on embryogenesis, survival, growth of Mytilus galloprovincialis mussel larvae
Provedor de dados: 5
Autores: Beiras, Ricardo; His, Edouard.
The effects of Hg concentrations ranging from 0 (control) to 1024 µg 1-1 upon embryogenesis, survival and growth of Mytilus galloprovincialis mussel larvae were investigated . Embryogenesis was abnormal in 50 % of the individuals at 10µg 1-1. The 48 h LC50 for D-shaped, early umbonate, late umbonate and eyed larvae were 51, 164, 322 and 383 µg 1- 1 respectively. The LC50 was an allometric function of ash-free dry weight with exponent b = 0.60. Larval growth was significantly reduced alter 6 d exposure to 4 µg Hg 1-1 and alter 10 d exposure to 2 µg 1-1. No significant differences in lethal or sublethal sensitivity to Hg were found between M. galloprovincialis and previously studied Crassostrea gigas embryos and larvae. The implications of these findings for...
Tipo: Text
Palavras-chave: Mercury; Mytilus galloprovincialis; Mussel; Larvae; Growth; Embryonic development; Bioassay; Ecotoxicology.
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00037/14868/12192.pdf

In situ hybridization detection of initial infective stages of Marteilia refringens (Paramyxea) in its host Mytilus galloprovincialis
Provedor de dados: 5
Autores: Carrasco, N; Arzul, Isabelle; Berthe, Franck; Furones, M.
Tipo: Text
Palavras-chave: Mussel; Marteilia refringens; In situ hybridization; Gills; Early stages; Connective tissue.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-3941.pdf

Suivi de la reproduction de l'huître creuse Crassostrea gigas et de la moule Mytilus edulis dans le bassin de Marennes-Oléron. Bilan de trois années d'observation de 1997 à 2000. Rappels sur la reproduction de C. gigas et la technique de pêche de larves
Provedor de dados: 5
Autores: Arnaud, Christophe; Faury, Nicole; Bouquet, Jean-paul; Guesdon, Stephane.
Monitoring of reproduction in the oyster Crassostrea gigas, and more particularly in the mussel Mytilis edulis were conducted, in the Marennes-Oléron Bay each year, from June to September. This report gives the main results obtained in 1997, 1998, 1999,2000 and compares the results between years. It also summarises the fishing techniques used and gives information on larval development in the annexes. NOT CONTROLLED OCR
Tipo: Text
Palavras-chave: Marennes Oléron; Larvae; Reproduction; Mussel; Oyster; Marennes Oléron; Larves; Reproduction; Moule; Huître.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/rapport-3883.pdf

Seston dynamics and bivalve feeding in the Bay of Marennes-Oléron (France)
Provedor de dados: 5
Autores: Zurburg, Wouter; Smaal, Aad; Heral, Maurice; Dankers, Norbert.
Within the framework of an investigation into the carrying capacity of the Bay of Marennes-Oléron (France) for bivalve culture, the in situ uptake of suspended particulate material by oysters (Crassostrea gigas) and mussels (Mytilus edulis) was determined in experiments with benthic ecosystem tunnels. Very high fluctuations in seston quantity and quality were observed within and between tidal cycles. The percentage of organic carbon was inversely related to seston quantity at low concentrations. Organic carbon was diluted by resuspension of material rich in inorganic matter. At high seston concentrations a constant level of about 2% organic carbon was found. The CIN ratio was relatively constant throughout the seasons and fairly low (6.5 to 8.4). Owing to...
Tipo: Text
Palavras-chave: Microphytobenthos; Chlorophyll; Feeding; Mussel; Oyster; Seston quality; Seston load.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/1994/publication-6843.PDF

Hydrocarbon pollution along Moroccan coasts and BPH activity in the mussel Perna perna
Provedor de dados: 5
Autores: Azdi, M.; Moukrim, A.; Burgeot, Thierry; Budzinski, H.; Chiffoleau, Jean-francois; Kaaya, A.; Zekhnini, A.; Narbonne, J. F.; Guarrigues, Ph.
Specimens of the mussel Perna perna were collected along Moroccan coasts to determine the concentrations of polycyclic aromatic hydrocarbons ( PAHs) bioaccumulated in the tissues, and to measure benzo[ a] pyrene hydroxylase (BPH) activity. Chemical analysis of PAHs show that the Mediterranean (Nador, Martil, Tanger) and central Atlantic coasts ( from Rabat to Jorf Lihoudi) are those most contaminated ( 351 245 ng.g(-1) dry weight in Tanger). The mussel contaminants were of mixed origin for most of the locations with non negligible inputs of petrogenic origin in many of them. Baseline levels of PAHs were between 6 and 55 ng.g(-1) dry weight. BPH activity showed significant correlation (r(s) = 0.64, P &lt; 0.05) with total PAH concentrations at the six most...
Tipo: Text
Palavras-chave: Mussel; Perna perna; Moroccan coasts; Polycyclic aromatic hydrocarbons; Benzoapyrene hydroxylase; Baseline level.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/00000/10995/12929.pdf

Suivi annuel de l'activité catalase chez des moules et des palourdes originaires de la lagune de Bizerte
Provedor de dados: 5
Autores: Dellali, M; Romeo, M; Aissa, P.
The variations of catalase activity, which is a biochemical biomarker of exposure to an oxidative stress, were followed month by month (from May 1998 to May 1999) in Mediterranean clams (Ruditapes decussatus) collected at three stations (J, A and F), and mussels (Mytilus galloprovincialis) collected at two stations (J and C) in Lake Bizerte (Tunisia). Several oceanographic parameters were measured together with catalase activity in the animals to evaluate the quality of waters in the lake. Whatever the station taken into consideration, catalase activity in clams significantly varied as a function of the season, with marked increases in September, when the quality of waters was poor. Clams originating from station A presented the highest mean activity...
Tipo: Text
Palavras-chave: Biomarqueur; Catalase; Lagune de Bizerte; Moule; Palourde; Biomarker; Catalase; Lake Bizerte; Mussel; Clam.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00322/43354/42859.pdf

Variation in the distribution of Corbicula species (Mollusca: Bivalvia: Corbiculidae) after 25 years of its introduction in the Río de la Plata, Argentina
Provedor de dados: 103
Autores: Reshaid,Yamila; Cao,Luciana; Brea,Francisco; Blanche,María Ortiz; Torres,Santiago; Darrigran,Gustavo.
ABSTRACT In 1981, Corbicula fluminea (Müller, 1774) and C. largillierti (Philippi, 1844) were recorded at the Río de la Plata River. During the 1980’s, C. largillierti was found on a continuous fringe in the shore of that river, while C. fluminea was only found North of Buenos Aires’ harbor. Ten years later, C. fluminea spread to Punta Indio, while C. largillierti remained restricted to tributary streams. The density and size frequency distribution of both species were compared with previous data from samples performed in the same area in 1985-1989. The aim of this research was to determine whether the densities of both species decreased; whether C. fluminea is still more abundant than C. largillierti; and whether the size frequency distributions indicate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bivalves; Freshwater; Invasion; Invertebrates; Mussel.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702017000100336

Sperm ultrastructure of Mytella (Bivalvia) populations from distinct habitats along the northern coast of São Paulo State, Brazil
Provedor de dados: 47
Autores: Orlandi Introíni,Gisele; Martins Maester,Fernanda; Pedini Pereira Leit,Fosca; Recco-Pimentel,Shirlei Maria.
Ultrastructural analyses of bivalve spermatozoa are relevant in studies that aim to identify taxonomic traits for the purposes of discriminating species and conducting phylogenetic studies. In the present work, spermatozoa of mussel specimens of the genus Mytella, collected from two populations living in distinct habitats, were examined by electron microscopy. The objective was to identify sperm ultrastructural taxonomic traits that could be used to differentiate Mytella species. The specimens were from populations that live in intertidal zones on the southeast coast of Brazil, either buried in muddy-sand sediment or anchored to rocky substrates. The acrosomal vesicle was conical and long, the axial rod extended from the nucleus to the acrosome, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mytilidae; Spermatozoa; Electron microscopy; Mussel.
Ano: 2010
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452010000300002

Biochemical characterization and inhibitory effects of dinophysistoxin-1, okadaic acid and microcystine l-r on protein phosphatase 2a purified from the mussel Mytilus chilensis.
Provedor de dados: 48
Autores: RIVAS,MARIELLA; GARCÍA,CARLOS; LIBERONA,JOSÉ L; LAGOS,NÉSTOR.
Protein phosphatases are involved in many cellular processes. One of the most abundant and best studied members of this class is protein phosphatase type-2A (PP2A). In this study, PP2A was purified from the mussel Mytilus chilensis. Using both SDS-PAGE and size exclusion gel filtration under denaturant conditions, it was confirmed that the PP2A fraction was essentially pure. The isolated enzyme is a heterodimer and the molecular estimated masses of the subunits are 62 and 28 kDa. The isolated PP2A fraction has a notably high p-NPP phosphatase activity, which is inhibited by NaCl. The hydrolytic p-NPP phosphatase activity is independent of the MgCl2 concentration. The time courses of the inhibition of the PP2A activity of p-NPP hydrolysis by increasing...
Tipo: Journal article
Palavras-chave: Chile; Diarrhetic Shellfish Poisoning (DSP); Mussel; Mytilus chilensis; Protein Phosphatase 2A; Microcystine L-R.
Ano: 2000
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602000000300005

The effect of temperature and salinity on the physiological rates of the mussel Perna perna (Linnaeus 1758)
Provedor de dados: 52
Autores: Resgalla Jr.,Charrid; Brasil,Elisângela de Souza; Salomão,Luis Carlos.
The aim of this work was to study the rates of respiration, clearance, excretion and absorption efficiency at different temperature and salinity under laboratory conditions for Perna perna. Results showed variations in physiological rates and in acclimatization capacity which, taken together, enabled to understand its behavior in the environment, as well as to estimate its scope for growth. All experiments were carried out in static conditions, in ten replicas with one mussel by flasks. Perna perna was capable of achieving acclimatization for both clearance and absorption efficiency (15 to 30 ºC), but it achieved only partial acclimatization for respiration and excretion under chronic temperature conditions. The clearance and respiration rates increased...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mussel; Perna perna; Physiological rates; Temperature; Salinity; Net growth efficiency.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000300019

Effects of aerial exposure on antioxidant defenses in the brown mussel Perna perna
Provedor de dados: 52
Autores: Almeida,Eduardo Alves de; Bainy,Afonso Celso Dias.
Investigations were carried out to evaluate the antioxidant defenses in digestive gland of mussels Perna perna held in air for 4 hours, exposed to air for 4 hours followed by submersion in water for 30 minutes, and constantly submerged for 4.5 hours. No differences were observed in CAT and GPx activities and in the levels of total GSH. Mussels exposed to air had significantly higher SOD activity, possibly related to a preparative mechanism of defense against oxidative stress during reoxygenation.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Hypoxia; Mussel; Perna perna; Aerial exposure.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000300007