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	Provedor de dados OceanDocs (19) ArchiMer (12) AgEcon (4) Acta Agron. (Palmira) (1) Neotropical Ichthyology (1) Autor Bodoy, Alain (4) Hansen, J.E. (4) Baud, Jean-pierre (3) Bacher, Cedric (2) Geairon, Philippe (2) Haure, Joel (2) Pájaro, M. (2) Abud,Eddie Aristizabal (1) Buratti, C.C. (1) Cabreira, A.G. (1) Caryo, Chrystelle (1) Cayre, P. (1) Contreras-Martínez,Julieta (1) Cordier, Jean (1) Deslous-paoli, Jean-marc (1) Diop, M. (1) Diouf, Sidiya (1) Direction des Pêches Maritimes (1) Dreno, Jean-paul (1) Dupuy, Beatrice (1) Mais... Palavra-chave Stocks (37) Http://aims.fao.org/aos/agrovoc/c_28772 (8) Artisanal fishing (7) Ostréiculture (6) Crassostrea gigas (5) Pelagic fisheries (5) Fishing effort (4) Baie de Bourgneuf (3) Biomass (3) Biomasse (3) Croissance (3) Echantillonnage (3) Ecosystems (3) Fisheries (3) Fishermen (3) Http://aims.fao.org/aos/agrovoc/c_24027 (3) Huîtres creuses (3) Production (3) Abundance (2) Canoe fisheries (2) Mais... Tipo do documento Text (12) Journal Contribution (7) Conference Paper or Presentation (4) Report (4) Theses and Dissertations (4) Book (2) Info:eu-repo/semantics/article (2) Conference Material (1) Other (1) Mais... Ano 2017 (1) 2015 (1) 2013 (4) 2011 (2) 2010 (1) 2009 (3) 2008 (2) 2006 (1) 2005 (2) 2003 (3) 2002 (2) 2001 (1) 2000 (1) 1999 (1) 1998 (1) 1992 (1) 1991 (1) 1990 (1) 1988 (2) 1987 (4) Mais... País Belgium (19) France (12) United States (4) Brazil (1) Colombia (1) Idioma Francês (18) Inglês (10) Espanhol (8) Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 37 Primeira ... 1 2 ... Última A methology for the stocks assessments of cultivated oysters among along the French Atlantic coasts ArchiMer Bacher, Cedric; Baud, Jean-pierre; Bodoy, Alain; Deslous-paoli, Jean-marc; Dreno, Jean-paul; Heral, Maurice; Maurer, Daniele; Prou, Jean. An assessment of the reared stocks of the Pacific oyster (Crassostrea gigas ) has been recently conducted on the major French areas of molluscs culture. The methodology proposed included both estimates of densities obtained by subsampling in the field, and aerial photographs which covered the cultivated, intertidal area. The size and the number of samples were designed to reach a precision of 10% on the final assessment in each area. The field work consisted in weighing and counting the oyster in unit areas of 0.5 m2 for the bottom culture or in trays or bags, for the off bottom technique. These results give a better knowledge of the technique evolution and of the general structures in the cultivated areas. Tipo: Text Palavras-chave: Modeling; Estimation; Stocks; Crassostrea gigas; Oysters. Ano: 1986 URL: http://archimer.ifremer.fr/doc/1986/acte-2864.pdf Aménagement des pêcheries maritimes artisanale au Sénégal: bilan et perspectives OceanDocs Diouf, Sidiya. Tipo: Theses and Dissertations Palavras-chave: Fisheries management; Maritime space; Stocks; Fishing gear; Fishing zone; Artisanal fishing. Ano: 2006 URL: http://hdl.handle.net/1834/4999 AN ECONOMIC ANALYSIS OF A FOOD SECURITY COMMODITY RESERVE: COMMODITY VS. CASH AgEcon Young, C. Edwin; Westcott, Paul C.; Hoffman, Linwood A.; Lin, William W.; Rosen, Stacey L.. The cost of operating the Food Security Commodity Reserve as a commodity reserve was compared with the cost of a cash reserve to purchase food aid supplies only in the period of need. Preliminary simulation results reveal the cash reserve to be less costly in almost all cases. Tipo: Conference Paper or Presentation Palavras-chave: Food aid; Agricultural policy; Stocks; Agricultural and Food Policy; Food Security and Poverty. Ano: 1999 URL: http://purl.umn.edu/21622 Analyse de l'état des stocks d'albacore (Thunnus albacares) et de listao (Katsuwonus pelamis) de l'Atlantique au 30 septembre 1980 OceanDocs Fonteneau, A.; Cayre, P.. L'article analyse l'état des stocks d'albacore et de listao d'après les informations les plus récents disponibles. Le modéle de production géréralisé est employé en utilisant des données améliorées opue FISM. L'analyse conclue que le stock d'albacore est fortement exploité à un niveau proche de ou légérement supérieure à la prise anuuelle équilibrée.. La production par par recrue de la pêcherie est probablement à un niveau élevé du fait de l'importance captures de gros albacores réalisés par les senneurs et les palangriers. Celle-ci pourrait probablement être améliorée en réduisant les prises de petits albacores hors taille qui demeurent très importantes, tant chez les senneurs que chez les canneurs. Le même modéle appliqué au stock de listao n'a pas... Tipo: Report Palavras-chave: Fishery biology; Stocks; Tuna fisheries; Fishing vessels statistics; Stocks; Fishery biology; Http://aims.fao.org/aos/agrovoc/c_28772; Http://aims.fao.org/aos/agrovoc/c_2937. Ano: 1980 URL: http://hdl.handle.net/1834/2890 Applying a non-parametric bootstrap technique to assess the accuracy of biomass estimates of argentine anchovy (Engraulis anchoita) northern stock (34º S-41º S) with the Daily Egg Production Method. 1993-2008 period OceanDocs Pájaro, M.; Hansen, J.E.; Leonarduzzi, E.. Engraulis anchoita northern stock reproductive biomass (SSB) during the 1993-2008 period was estimated applying the Daily Egg Production Method (DEPM) and accuracy of estimates assessed using a bootstrap technique (SW Atlantic Ocean, Argentine Sea). The basic data were collected in different research surveys carried out in late Spring, at the peak of the spawning season. The aim of this work was to build reliable confidence intervals around the estimates of the mean reproductive biomass applying a non-parametric bootstrap method. Resampling methods are becoming increasingly popular as statistical tools as they are robust and do not require the assumption of any particular distribution of the basic data. This is especially relevant when assessing the DEPM... Tipo: Journal Contribution Palavras-chave: Spawning; Stocks; Fecundity; Biomass; Statistical analysis. Ano: 2013 URL: http://hdl.handle.net/1834/5494 COMMODITY INDEX FUNDS AND PRICE SWINGS: CONDITIONS OF CAUSALITY AgEcon Gohin, Alexandre; Cordier, Jean. The role played by “speculators” during the 2007/08 food price spike is lively disputed. Our analysis focuses on the increasing participation of index funds in agricultural commodity futures markets before the food price spike. Our central theme is to determine if their prespike massive entry does prepare the subsequent crisis by maintaining low stock levels. We develop a theoretical model explaining the behaviour of speculators and traders on futures and cash markets. We allow index funds to inflict an informational externality on commercial traders that is supposed to induce a lower desire to hold stock. We find out that, once the production decisions of commercial traders are taken into account into the model, the increased net long position of index... Tipo: Conference Paper or Presentation Palavras-chave: Futures markets; Commodity price; Index funds; Stocks; Food Consumption/Nutrition/Food Safety; Risk and Uncertainty. Ano: 2010 URL: http://purl.umn.edu/91283 Composición química y perfil de ácidos grasos de la anchoíta bonaerense en función del tamaño de los ejemplares y la zona de pesca OceanDocs Massa, A.E.; Fernández Compás, A.S.; Pennisi Farell, S.C.; Manca, E.A.. The aim of this study was to determine the chemical composition and fatty acids profile present in Argentine anchovy (Engraulis anchoita) northern population as a function of fish size and fishing area (SW Atlantic Ocean, Argentine Sea). Samples were collected during the northern stock assessment cruise of the Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP) carried out on board of FRV Capitán Oca Balda in Spring 2008 (OB-02/2008). The fishing trawls were performed between 34º 35' S and 40º 19' S. The area was divided in two zones: the northern, between 34º S-38º S, strongly influenced by the mixohaline waters of the Río de la Plata River estuary and the southern, between 38º S-41º S, that included the El Rincón coastal area. In each... Tipo: Journal Contribution Palavras-chave: Fishing grounds; Stocks; Chemical composition; Fatty acids; Size. Ano: 2013 URL: http://hdl.handle.net/1834/5499 Distribución de desovantes y estimación de variables reproductivas del efectivo norteño de merluza (Merluccius hubbsi) (35º'S-41º'S) durante mayo de 2009 OceanDocs Rodrigues, K.A.; Macchi, G.J.. Spawning and reproductive variables of the northern hake stock were analyzed using macroscopic and histologic gonad information derived from samples collected in May 2009. The study includes estimates of batch fecundity, spawning frequency, oocyte dry weight and size at first maturity. During May 2009 the reproductive activity of the northern hake stock took place mainly near the 50 m isobath, north of 37° S. Spawning occurred within a temperature range of 9 °C-15 °C that coincided with a bottom thermal front. Size at first maturity, much lower than that reported at the beginning of the 1980s, showed differences between males (27.16 cm TL) and females (32.84 cm TL). The reproductive frequency was estimated at one spawning every 13 days and mean batch... Tipo: Journal Contribution Palavras-chave: Stocks; Spawning populations; Histology; Fecundity; Gadoid fisheries; Merluccius hubbsi; Marine environment. Ano: 2011 URL: http://hdl.handle.net/1834/4883 Distribution spatiale des stocks de poissons récifaux démersaux d'intérêt commercial et effort de pêche en Province Nord de Nouvelle-Calédonie (Pacifique occidental) ArchiMer Letourneur, Yves; Labrosse, Pierre; Kulbicki, Michel. Fish from lagoon and reef in New Caledonia are mainly caught by artisanal fisheries and subsistence fishing. The present study aimed at estimating these fish standing stocks, at finding the main factors influencing the spatial distribution of these fish, and at estimating the maximum sustainable yield with considerations for socio-economic aspects sensu late. A total of 1406 stations was surveyed in the Northern Province of New Caledonia. Sampling was stratified according to three zones (north, east and west) and three biotopes (coral reefs, near-reef areas and lagoon bottoms). This work demonstrates the existence of important fish stocks of commercial interest in reefal and lagoonal waters of the Northern Province, estimated at about 138 300 t. The... Tipo: Text Palavras-chave: Ichtyofaune démersale; Récifs coralliens; Fonds de lagon; Pêche artisanale; Stocks; Demersal ichthyofauna; Coral reefs; Lagoon bottoms; Artisanal fishing; Standing stocks. Ano: 2000 URL: https://archimer.ifremer.fr/doc/00323/43383/42827.pdf El canibalismo como mecanismo regulador denso-dependiente de mortalidad natural en la anchoíta argentina Engraulis anchoita. Su relación con las estrategias reproductivas de la especie. OceanDocs Pájaro, M.. Cannibalism is not an abnormal behaviour and it can be observed in a wide number of animals. In Pisces, cannibalism may be the result of endogenous intraspecific factors (nutritional state, size, age, state of development) or exogenous intraspecific factors (food, density, light). Nevertheless, external fertilization and the high fecundity of teleost fish tend to increase egg cannibalism, in particular among filter feeding fishes such as anchovies. In the present work, two important Argentine anchovy Engraulis anchoita stocks were studied. The first is to the north of 41°S, and spawns during spring on the coastal and shelf waters of Buenos Aires Province,Argentina, and Uruguay. The second one inhabits the Patagonian region, from 41°S to 47°S. It spawns... Tipo: Theses and Dissertations Palavras-chave: Feeding behaviour; Cannibalism; Natural mortality; Fish larvae; Fish eggs; Spawning seasons; Stocks; Food preferences; Reproduction; Stocks; Food preferences; Feeding behaviour; Cannibalism; Fish larvae; Reproduction; Http://aims.fao.org/aos/agrovoc/c_28772; Http://aims.fao.org/aos/agrovoc/c_3024; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_9580; Http://aims.fao.org/aos/agrovoc/c_2924; Http://aims.fao.org/aos/agrovoc/c_6507. Ano: 1998 URL: http://hdl.handle.net/1834/1476 Estimation des stocks d'huître japonaise en élevage en 1988, dans le bassin de Marennes-Oléron et aspects méthodologiques ArchiMer 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 Estimation des stocks d'huîtres creuses en élevage dans la Baie de Bourgneuf en octobre 1985 ArchiMer Baud, Jean-pierre; Hommebon, Prestal. L'estimation de la biomasse réalisée en octobre 1985 en baie de Bourgneuf montre que les stocks en élevage étaient de 38 817 tonnes d'huîtres, avec une précision de 6,8%, ce chiffre se décomposant en 22 791 tonnes de collecteurs (précision 17%) et 17 727 tonnes de poches (précision 10,3%). La biomasse sur les zones cultivées est de 5,9 kg.m2. Le pourcentage d'exploitation des zones concédées est de 62,8% et le coefficient de conversion en zone exploitée de 0,219. Le traitement des données fait également apparaître une surcharge (stock au mètre linéaire) de la strate des collecteurs de 2 ans et plus. Cette surcharge se trouve accentuée par l'agencement en doubles rangées des tables sur les concessions. Tipo: Text Palavras-chave: Ostréiculture; Stocks; Densité; Production; Baie de Bourgneuf; Vendée. Ano: 1987 URL: http://archimer.ifremer.fr/doc/00171/28239/26497.pdf Estimation des stocks d'huîtres cultivées dans la Baie de Bourgneuf en 1986 ArchiMer Baud, Jean-pierre; Haure, Joel. Une estimation du stock d'huîtres creuses, en élevage dans la Baie de Bourgneuf, a été effectuée en octobre 1986 . Le stock s'élevait à cette période à 37 821 tonnes avec une précision de 5 %. Ce chiffre se décompose en 22 327 tonnes de collecteurs (précision 13 %) et 15 123 tonnes de poches (précision 12 %) . La biomasse moyenne sur les zones d'élevage est estimée à 6,1 kg .m-1 avec un pourcentage d'exploitation des secteurs concédés égal à 58, 59 % et un taux d'occupation, en zone exploitée de 0, 228 . Il n'y a pas de différence sensible avec le stock global et l'estimation des superficies exploitées en 1985. Cependant l'amélioration du plan d'échantillonnage a permis de mettre en évidence une décroissance des rendements du Nord vers le Sud de la Baie de... Tipo: Text Palavras-chave: Ostréiculture; Stocks; Densité; Croissance; Production huître creuse; Baie de Bourgneuf. Ano: 1987 URL: http://archimer.ifremer.fr/doc/00048/15891/13313.pdf Estimation des stocks d'huîtres cultivées dans le bassin de Marennes-Oléron en 1986 ArchiMer Bodoy, Alain; Bacher, Cedric; Geairon, Philippe. Une estimation du stock d' huîtres creuses en élevage dans le bassin de Marennes-Oléron a été effectuée en août 1986 . Le stock s'élevait alors à 90 000 tonnes, avec une précision de 8,4 %. Ce stock se répartit en 30 300 tonnes pour l'élevage à plat et 59 700 tonnes pour l'élevage en surélevé. Il s'est donc produit une augmentation des tonnages en élevage qui est de 9,4 % entre 1985 et 1986. L'augmentation de tonnage concerne surtout l 'élevage en surélevé, et plus particulièrement les huîtres fixées sur collecteurs. La séparation des classes d'âge au niveau des collecteurs a permis d'améliorer la précision des estimations. Elle a également permis de montrer l'importance de la classe d'âge de 1 an (16 900 tonnes), qui correspond au captage particulièrement... Tipo: Text Palavras-chave: Ostréiculture; Stocks; Croissance; Production; Huîtres creuses. Ano: 1987 URL: http://archimer.ifremer.fr/doc/00048/15903/13331.pdf Estimation des stocks d'huîtres sauvages sur les zones non concédées de la partie vendéenne de la Baie de Bourgneuf en 2004 ArchiMer Martin, Jean-louis; Haure, Joel; Dupuy, Beatrice; Nourry, Max; Palvadeau, Hubert; Papin, Mathias; Penisson, Christian; Thouard, Emmanuel. La baie de Bourgneuf est un bassin de 34000 ha dont l'activité ostréicole représente à elleseule plus de 95% du chiffre d'affaire local réalisé par la production conchylicole. Lesdifférentes études qui ont été réalisées ont montré que le stock d'huîtres en élevage (40000t) et la production annuelle (13000 t) qui en est issue variaient peu au cours des années (Barillé-Boyer et al., 1997, Haure et al. , 2003). Toutefois, les performances de croissance, ainsi que la qualité des huîtres produites sont médiocres et place ce bassin au dernier rang des sites français de production (données du réseau REMORA). Plusieurs études ont été entreprises, pour expliquer ce phénomène, par l'approche de la capacité trophique de cet écosystème et l'estimation des biomasses... Tipo: Text Palavras-chave: Conchyliculture; Biomasse; Stocks; Huîtres creuses; Crassostrea gigas; Baie de Bourgneuf. Ano: 2005 URL: http://archimer.ifremer.fr/doc/00048/15877/13299.pdf Estimation of carbon stocks under different soil uses in the central highlands of Mexico Acta Agron. (Palmira) Álvarez-Arteaga*,Gustavo; García-Fajardo,Belina; Orozco-Hernández,María Estela; Mireles-Lezama,Patricia; Contreras-Martínez,Julieta. Abstract The loss of organic carbon stocks from the soil and their expulsion into the atmosphere due to the effect of anthropogenic activities must be understood as a problem that goes beyond the environmental to the social and economic context, with the soil degradation being just one of its many impacts. While the accumulation of carbon in the soil depends naturally on the interaction among a series of biotic and abiotic factors, management practices often cause the deterioration of its physical, chemical and biological properties, and, thus, increase the levels of mineralization and a reduction in carbon stocks. This research was undertaken in the municipality of San José del Rincón, State of Mexico, in volcanic soils under different conditions of soil... Tipo: Info:eu-repo/semantics/article Palavras-chave: Stocks; Bulk density; Organic material; Management practices; Forest soils. Ano: 2017 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000100021 ESTRUTURAÇÃO DE UM ÍNDICE DE PREÇOS DE AÇÕES DO AGRONEGÓCIO BRASILEIRO LISTADAS NA BOVESPA AgEcon Souza, Waldemar Antonio da Rocha; Silva, Rodolfo Margato; Martines-Filho, Joao Gomes. O agronegócio brasileiro vem assumindo forte predominância no cenário econômico, destacando-se como principal responsável pelos crescentes volumes de exportação do País. As empresas que compõem esse segmento apresentam características econômico-financeiras particularizadas, correlacionadas com as condicionantes intrínsecas do setor. O presente estudo objetiva elaborar e analisar uma metodologia para captar a evolução de dado conjunto de ativos financeiros relacionados ao agronegócio brasileiro, particularmente as ações de companhias abertas do setor negociadas na Bolsa de Valores de São Paulo (BOVESPA), com o intuito de delinear as suas características próprias comparativamente a outros instrumentos disponíveis no mercado de capitais. Com base na... Tipo: Conference Paper or Presentation Palavras-chave: Agronegócio; Índice; Ações; BOVESPA; Metodologia; Agribusiness; Index; Stocks; BOVESPA; Methodology; Agribusiness. Ano: 2008 URL: http://purl.umn.edu/108571 Estudio de la morfometría de las sagittae en poblaciones de sciaenidos marinos de aguas cálidas del Perú y aguas templado-frías de Argentina OceanDocs Volpedo, A.. Otoliths (sagitta, asteriscus and lapillus)are complex structures composed of calcium carbonate, other minerals, and a protein matrix. Otoliths are located in the internal ear of the teleost fishes. The shape and structure of otoliths are specific for each species. For this reason, otoliths are used to identify species in biological and ecological studies.Sciaenids conform a group of fishes of commercial importance, so the handling of this resource is a high-priority topic for the local and national economies of countries that exploit these species. The purpose of this work is to study different aspects of the sagittae of marine sciaenids from Argentina and Peru. The morphology, morphometry and chemical composition has been analyzed in relation to the... Tipo: Theses and Dissertations Palavras-chave: Otoliths; Morphometry; Identification keys; Indicator species; Dimensions; Trace metals; Environmental factors; Stocks; Coastal fisheries; Otoliths; Dimensions; Environmental factors; Stocks; Indicator species; Coastal fisheries; Http://aims.fao.org/aos/agrovoc/c_27091; Http://aims.fao.org/aos/agrovoc/c_2283; Http://aims.fao.org/aos/agrovoc/c_2594; Http://aims.fao.org/aos/agrovoc/c_28772; Http://aims.fao.org/aos/agrovoc/c_35790; Http://aims.fao.org/aos/agrovoc/c_1696. Ano: 2001 URL: http://hdl.handle.net/1834/3132 Etude diagnostic de la pêcherie de mulets sur la grande côte du Sénégal OceanDocs Tipo: Book Palavras-chave: Mullet fisheries; Reproduction; Growth; Migrations; Ecology; Stocks; Landing statistics; Inland fisheries; Fishing gear; Exploitation; Canoe fisheries; Marketing; Artisanal fishing; Fishing licenses; Mesh regulations; Protected areas; Reef fisheries; Fishing effort. Ano: 2009 URL: http://hdl.handle.net/1834/4578 Etude sur le savoir écologique des pêcheurs artisans des petits pélagiques en Afrique du Nord-Ouest OceanDocs Sall, A.. Agriculture, Nature and Food Quality, Den Haag (Netherlands); Ministerie Van Buitenlandse Zaken, Brussel (Belgium); Wageningen International, Wageningen (Netherlands) Tipo: Report Palavras-chave: Fisheries; Artisanal fishing; Fishermen; Fishing effort; Canoe fisheries; Coastal zone; Fishery engineering; Protected resources; Pelagic fisheries; Cycles; Sexual reproduction; Multispecies fisheries; Stocks; Ocean currents; Winds; Biomass; Upwelling; Ecosystems; Maritime legislation; Size; Biomass; Ecosystems; Fisheries; Fishermen; Stocks; Ocean currents; Winds; Size; Fishing effort; Pelagic fisheries; Sexual reproduction; Multispecies fisheries; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_2482; Http://aims.fao.org/aos/agrovoc/c_2934; Http://aims.fao.org/aos/agrovoc/c_2936; Http://aims.fao.org/aos/agrovoc/c_28772; Http://aims.fao.org/aos/agrovoc/c_12883; Http://aims.fao.org/aos/agrovoc/c_8401; Http://aims.fao.org/aos/agrovoc/c_7093; Http://aims.fao.org/aos/agrovoc/c_24027; Http://aims.fao.org/aos/agrovoc/c_5659; Http://aims.fao.org/aos/agrovoc/c_26876; Http://aims.fao.org/aos/agrovoc/c_4987. Ano: 2009 URL: http://hdl.handle.net/1834/3671 Registros recuperados: 37 Primeira ... 1 2 ... Última

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