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Registros recuperados: 62
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A multimetric-index approach using fisheries data to assess fish assemblage structure in relation to salinity gradient in a tropical West African estuary ArchiMer
Kantoussan, J.; Ecoutin, J. M.; Lae, R.; Thiaw, O. T.; Tito De Morais, L..
This study examines the effects of increasing salinity on fish assemblage structure in the Casamance Estuary, Senegal. using a series of indices. The study data were derived from commercial fishery surveys conducted between April and July 2005. Analysis of within-trophic-group diversity in the Casamance Estuary shows a significant drop in the diversity of apex predators in the upper. more saline reaches of the estuary. By contrast. primary consumers adapted well to salinity changes and exhibited higher taxonomic diversity in the upper reaches of the estuary than in the lower reaches. The findings also indicate decreases in average sizes of the landed species and the trophic levels among fish catches in the direction of the upper reaches. However, the catch...
Tipo: Text Palavras-chave: Biological indicators; Casamance Estuary; Ecosystem monitoring; Fishery statistics; Inverse hypersaline estuary; Senegal; Taxonomic diversity.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00451/56222/57945.pdf
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Aménagement des ressources halieutiques au Sénégal: partenariat et démarche préventive OceanDocs
Ndiaye, O..
Le gouvernement du Sénégal s’est engagé, en élaborant le Plan directeur des pêches en 1998, à mettre en oeuvre « une politique de gestion prudentielle » de la ressource halieutique, conformément au Code de conduite pour une pêche responsable (FAO,1995). D’où l'intérêt d’examiner les contraintes à la conservation et à l’exploitation durable de la ressource et comment lever ces contraintes. La situation des pêches est caractérisée par un état critique de la ressource halieutique du fait de plusieurs facteurs, la surpêche entrant en première ligne. Plusieurs contraintes ont été identifiées. Les principales sont l’absence d'une démarche de planification dans la gestion des ressources halieutiques, le problème de l'appropriation de la réglementation, la...
Tipo: Report Palavras-chave: Fishery management; Fishing; Environmental charts; Fishery oceanography; Fishery regulations; Fishing effort; Fishery statistics; Fishery resources; Fishery management; Fishery oceanography; Fishing; Fishing effort; Fishery resources; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_2938; Http://aims.fao.org/aos/agrovoc/c_26950; Http://aims.fao.org/aos/agrovoc/c_24027; Http://aims.fao.org/aos/agrovoc/c_2942.
Ano: 2000 URL: http://hdl.handle.net/1834/1524
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Boletín Estadístico Pesquero (2002-2007) OceanDocs
A partir de la firma del Proyecto de Gestión Pesquera DINARA-FAO (UTF/URU/025/URU) en setiembre de 2007, se comenzó a conformar una Unidad de Economía Pesquera, la cual estuvo dirigida a fortalecer la capacidad de recolección y análisis estadístico de la información socio-económica del sector. Esta Unidad ha permitido compilar y analizar información estadística pesquera entre los años 2002 y 2007 y ponerla a disposición del público en este Boletín Estadístico Pesquero, reanudando así, luego de varios años, una serie de publicaciones de importancia clave para el sector pero también para la sociedad civil en general, dado que los recursos pesqueros constituyen parte del patrimonio nacional. El trabajo conjunto de técnicos de DINARA y especialistas...
Tipo: Other Palavras-chave: Fishery statistics; Fishing vessels statistics; Fishermen statistics; Trade; Trade; Http://aims.fao.org/aos/agrovoc/c_7848.
Ano: 2008 URL: http://hdl.handle.net/1834/2949
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Boletín Estadístico Pesquero 2008 OceanDocs
A partir de la firma del Proyecto de Gestión Pesquera DINARA-FAO (UTF/URU/025/URU), en septiembre de 2007, se comenzó a conformar una Unidad de Economía Pesquera. Sus objetivos se focalizaron en fortalecer la capacidad de recolección y análisis estadístico de la información socio-económica del sector. En el 2008 esta Unidad compiló y realizó un análisis de la información comprendida entre los años 2002 y 2007, reanudando luego de varios años esta publicación histórica. La misma fue un éxito en todo sentido, especialmente para consulta de los diferentes actores del sector. La aceptación y receptividad que ha tenido dicha publicación nos motiva y obliga a continuar en esta línea, rumbo a la obtención de un producto de valor y utilidad, basado exclusivamente...
Tipo: Book Palavras-chave: Fishery statistics; Fisheries; Trade; Fisheries; Trade; Http://aims.fao.org/aos/agrovoc/c_2934; Http://aims.fao.org/aos/agrovoc/c_7848.
Ano: 2009 URL: http://hdl.handle.net/1834/3244
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Conseil Présidentil sur la Pêche OceanDocs
Tipo: Book Palavras-chave: Artisanal fishing; Coastal fisheries; Fish catch statistics; Fishermen; Fishery management; Fishery development; Fishery oceanography; Fishing effort; Fishery protection; Fishery statistics; Freshwater fish; Marine fisheries; Pelagic fisheries; Aquaculture statistics; Aquaculture; Aquaculture development; Fishermen; Fishery management; Fishery oceanography; Marine fisheries; Aquaculture; Coastal fisheries; Fishing effort; Pelagic fisheries; Http://aims.fao.org/aos/agrovoc/c_2936; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_2938; Http://aims.fao.org/aos/agrovoc/c_4611; Http://aims.fao.org/aos/agrovoc/c_550; Http://aims.fao.org/aos/agrovoc/c_1696; Http://aims.fao.org/aos/agrovoc/c_24027; Http://aims.fao.org/aos/agrovoc/c_5659.
Ano: 2008 URL: http://hdl.handle.net/1834/2892
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Data-Recording System and Sampling Strategy in the Western Indian Ocean Purse-Seine Fishery OceanDocs
Thomas, A.; Dufour, O.; Pianet, R.; Morón, J..
The present data-recording system used in the Seychelles to compile the tuna purse-seine statistics in the WIO was established by ORSTOM at the beginning of the fishery (1982/3) for the French fleet, and then extended to the Seychelles Fishing Authority (SFA) and Madagascar in 1991-92 for all fleets. After several modifications, it has been working efficiently for the last ten years, making it possible to build a very comprehensive tuna database for the purse-seine fleets since the beginning of the fishery. The extension to Madagascar started in 1992, within the framework of the Regional Tuna Project. A specific laboratory, the(Unité Statistique Thonière d’Antsiranana (USTA) was installed, the work being done in collaboration between ORSTOM, the Direction...
Tipo: Report Palavras-chave: Fishery statistics; Purse seiners; Fishery data.
Ano: 1995 URL: http://hdl.handle.net/1834/515
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Diagnostic des pêcheries du poulpe (Octopus vulgaris) dans les eaux sous juridiction sénégalaise: Rapport définitif OceanDocs
Les seiches, poulpes, calmars et nautiles forment la Classe des Céphalopodes de l’Embranchement des Mollusques de grande taille, exclusivement marins. Leur croissance est rapide, leur arrivée à la maturité sexuelle précoce et leur durée de vie courte. Le poulpe a une très large aire de distribution incluant les eaux maritimes tropicales. Elle abonde surtout en Méditerranée, dans les eaux japonaises (Océan Pacifique) et dans l’Atlantique Centre-Est qui s’étend du Maroc à l’Angola. La pêche du poulpe s’est développée au large du Sahara dans les années 1960. Son importance dans la zone du COPACE notamment, au Maroc, en Mauritanie et au Sénégal, s’expliquerait par la raréfaction de ses prédateurs potentiels (Serranidés, Sparidés). Au Sénégal, elle est...
Tipo: Working Paper Palavras-chave: Cephalopod fisheries; Reproduction; Fishing gear; Fishery industry; Catching methods; Fishing nets; Season regulations; Fishing effort; Fishing rights; Fishery regulations; Living resources; Commercial legislation; Octopus fisheries; Fishery statistics.
Ano: 2009 URL: http://hdl.handle.net/1834/4573
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Données économiques maritimes françaises 1997 ArchiMer
Kalaydjian, Regis.
The purpose of this book is to value the economic significance of marine-related activities in France. Each industrial, or public non-commercial, sector is characterized by key figures relating to annual turnover, value added, employment and budget. These figures are accompanied with qualitative information on the recent development, current situation and future perspectives of the sector in terms of markets, employment and technological progress. Public and private R&D is also allowed for. Given the diversity of marine-related activities, this information aims at enabling the reader to assess their importance from a comparative angle. From the sector-based approach it is possible to draw certain conclusions. Notably, commercial activities contributed...
Tipo: Text Palavras-chave: France; Fishery economics; Living resources; Marine transportation; Fishery statistics.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/2001/rapport-1347.pdf
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Données économiques maritimes françaises 1998 ArchiMer
Kalaydjian, Regis.
The purpose of this book is to value the economic significance of marine-related activities in France. Each industrial, or public non-commercial, sector is characterized by key figures relating to annual turnover, value added, employment and budget. These figures are accompanied with qualitative information on the recent development, current situation and future perspectives of the sector in terms of markets, employment and technological progress. Public and private R&D, and the protection of coastal and marine environment are also allowed for. Given the diversity of marine-related activities, this information aims at enabling the reader to assess their importance from a comparative angle.
Tipo: Text Palavras-chave: France; Fishery economics; Living resources; Marine transportation; Fishery statistics.
Ano: 1999 URL: https://archimer.ifremer.fr/doc/1999/rapport-1312.pdf
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Données économiques maritimes françaises 1999 ArchiMer
Kalaydjian, Regis.
This document presents a survey of the sea-related activities in France, i.e. those of the commercial sector (exploitation of mineral and living resources, manufacturing industries, services) and those of the non-commercial public sector (Navy, State services, education, safety, marine research). A chapter is devoted to the protection of the coastal and marine environment. Each activity of the commercial sector is described by key-figures (turnover, value added, employment); the description of the non-commercial public sector includes data on costs, including personnel costs. In addition to these figures, qualitative information is given on the recent development, present situation and future prospect of each activity. This set of data and information...
Tipo: Text Palavras-chave: France; Fishery economics; Living resources; Marine transportation; Fishery statistics.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/2000/rapport-1346.pdf
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Etat de la Peche des Sparides du Golfe du Lion. Application de Deux Modeles de Gestion (Schaefer, 1957; Beverton et Holt, 1957) aux Stocks de Pagellus erythrinus et Boops boops. ArchiMer
In the Gulf of Lion, only three species of Sparidae present a true economical interest : The pandora, the bogue and the gilt head bream. They totalize 90% of the catches of this family. The model of Schaefer is inapplicable to the pandora and bogue stocks and the author could not determine an optimal fishing effort for these two species. The important heterogeneity of size and equipment of the trawlers and the notable imprecision of the fishery statistics explain, perhaps, the inadequacies of this logistic model to this fishing. The author has defined the potentialities of the production of the pandora and bogue stock using the analytical model of Beverton and Holt. He verifies that an increase of the yield corresponds to a decrease of the fishing effort....
Tipo: Text Palavras-chave: Boops boops; Pagellus erythrinus; Boops boops; Fishery statistics; Pagellus erythrinus; Yield; Fishery statistics; Fishing effort; Yield; Stock assessment; Fishing effort; Mathematical models; Stock assessment; Fishery management; Mathematical models.
Ano: 1980 URL: http://archimer.ifremer.fr/doc/1980/publication-1928.pdf
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Identification et définition des termes nécessaires à la révision de la convention sur les conditions minimales d'accés des pays de la CSRP OceanDocs
Talla, M.D..
Commissions Sous Régionale des Pêches, Dakar (Sénégal) IUCN, Dakar (Sénégal)
Tipo: Book Palavras-chave: Fishery resources; Resource surveys; Artisanal fishing; Fishery management; Fishery regulations; Fishery statistics; Fishing effort; Fishing vessels; Fish inspection; Quality control; Stocks; Fishery management; Stocks; Fishery resources; Fishing effort; Fishing vessels; Fish inspection; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_28772; Http://aims.fao.org/aos/agrovoc/c_2942; Http://aims.fao.org/aos/agrovoc/c_24027; Http://aims.fao.org/aos/agrovoc/c_2954; Http://aims.fao.org/aos/agrovoc/c_10877.
Ano: 2008 URL: http://hdl.handle.net/1834/2894
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La Lettre du CNROP OceanDocs
IMROP.
Sommaire: Pour un aménagement cohérent de nos ressources halieutiques - La ZEE mauritanniene - L'arrêt de pêche; une mesure pour qoui faire? - La page statistique - Vie du CNROP
Tipo: Other Palavras-chave: Marine environment; Fishery resources; Fishery statistics; Fishing policy.
Ano: 1998 URL: http://hdl.handle.net/1834/251
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La Lettre du CNROP OceanDocs
IMROP.
Sommaire: Mot du directeur - La ZEE mauritanniene - La mise aux normes sanitaires des produits et établissements de pêche en Mauritanie - La préservation des juvéniles de poulpe - La page statistique - Vie du CNROP
Tipo: Other Palavras-chave: Octopus; Fisheries resources; Normes sanitaires; Juvéniles; Ressources halieutiques; Poulpe; CNROP; Produits de la pêche; Fishery products; Sanitary engineering; Octopus fisheries; Fishery statistics.
Ano: 1999 URL: http://hdl.handle.net/1834/258
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La necessite d'un systeme statistique integre pour l'evaluation des resultats economiques de la peche maritime. ArchiMer
Abgrall, J; Congar, R.
This study highlights the economic interrelations among all boats, focusing on two particular cases, on the one hand the French Channel trawler fleet (1978 to 1980), the Quebec trawler fleet (1974 to 1982) on the other. The present results show the extent of changes in vessel profit or loss productivity and the sacrifice owners and crew have to make in order to survive. Results also show the disparities of situations between the different sorts of vessels within a common bioeconomic environment.
Tipo: Text Palavras-chave: Quebec; Canada; ANW; Marketing; Fishery statistics; Economic analysis; Fishery economics.
Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/publication-1801.pdf
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Le ceteau Dicologoglossa cunetata (Moreau), sa biologie et sa peche dans le sud du golfe de Gasgogne. ArchiMer
Forest, A.
This study deals with D.cuneata, a small soleid listed among the spp of NEAFC Recommendation 2 and exploited by the 'artisanal' trawlers in the South of the Bay of Biscay. The gonads/gutted fish wt ratio has been calculated throughout a yr, and shows that young Dicologoglossa are able to reproduce at age-group II. Spawning takes place during the 3rd quarter. Growth has been determined by otolith reading and length frequency analysis; Bertalanffy's and Gompertz's equations parameters have been studied, and attempts to estimate the instantaneous rate of total mortality have been made. The results are: male Z 3-5=0.74 and 0.83, female Z 3-5=0.96 and 1.35. Selectivity experiments carried out on board of R/V 'La Palagia' give a selection factor of 3.9. The...
Tipo: Text Palavras-chave: Microchirus; Dicologoglossa cuneata; Population structure; Gear selectivity; Total mortality; Population characteristics; Fishing effort; Artisanal fishing; Reproductive organs; Growth; Fishery statistics.
Ano: 1975 URL: http://archimer.ifremer.fr/doc/1975/publication-2003.pdf
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Le crabe girafe Ranina ranina, aux Seychelles: biologie et exploitation OceanDocs
de Moussac, G..
Commercial catches of the crabe girafe, Ranina ranina in the Seychelles are analyses. Male crabs are dominant in the catch (65_310= male to 35_310= female) Large individuals present in the catch (exceeding 115mm) are all males. The size at first maturity for female crabs is 89.5mm. One spawning season is observed annually, around December Von Bertalanffy growth estimates obtained from length frequency data using the Hasselblad method to separate the modes followed by modal progressions, are as follows: Males: L oo = 160mm, k = 0.24 per year: Females: L oo = 137mm, k = 0.12 per year. Alternative estimates are also given using the Von, Bertalanffy equation assuming seasonally oscillating growth. The total mortality which corresponds to the natural mortality...
Tipo: Report Palavras-chave: Fishery statistics; Catch statistics; Fishery biology.
Ano: 1988 URL: http://hdl.handle.net/1834/5115
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Le Maigre, Argyrosomus regius (Asso, 1801) (Pisces, Perciformes, Sciaenidae) du Golfe de Gascogne et des eaux plus septentrionales ArchiMer
Quero, Jean-claude; Vayne, Jean-jacques.
The meagre (Argyrosmus regius ) of Bay of Biscay is found along the coast and in the Gironde Estuary from spring to autumn, and in deeper waters during the cold season. It is never abundant at the north of the Pertuis charentais. The young individuals and adults do not have the same distribution. Spawning takes place between mid May and late July in the Gironde Estuary. The young fish feed on small crustaceans and the adults on pelagic fishes. Growth is rapid. The meagre emits loud grunts and the fishermen of the Gironde use these noises to locate the fish and to position their nets.
Tipo: Text Palavras-chave: Pisces; Environmental effects; Fishery statistics; Fishery biology; Distribution records.
Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/publication-1766.pdf
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Les prises accessoires effectuees lors de la peche de la Civelle d'anguille (Anguilla anguilla L.), Etude preliminaire en Loire et en Vilaine. ArchiMer
Gascuel, Didier; Elie, Pierre.
The study of 41 samples, which were perfomed in the Loire and Vilaine estuaries, during elver fishing seasons 1979-80 and 1980-81, allowed us to define a rapid method of sample analysis in laboratory. The fish catches of one-year old and over were not abundant (eel, mullet, sprat, flounder, sole); on the other hand, larval stages of herring, flounder and also of mullet, sole and sprat were caught in large quantities. In addition, there were numerous catches of brown shrimp and species of trophic interest such as goby and macroplanktonic crustaceans. It is noteworthy that the by-catches are numerous during the fishing season.
Tipo: Text Palavras-chave: Anguilla anguilla; Fishery statistics.
Ano: 1982 URL: http://archimer.ifremer.fr/doc/1982/publication-1882.pdf
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Les statistiques de pêche ArchiMer
Delpech, Jean-paul.
The french statistical fishery system is briefly presented and informations are given relative to landings, fishing effort, data network and system actors.
Tipo: Text Palavras-chave: Fishery statistics; Production; Fishing effort.
Ano: 1998 URL: https://archimer.ifremer.fr/doc/00447/55810/62263.pdf
Registros recuperados: 62
Primeira ... 1234 ... Última
 

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