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A methodology for acoustic assessment in very shallow waters (less than 8 m) IRD
Gerlotto, François; Hernandez Corujo, C.; Claro, R..
Une méthodologie de prospection acoustique et de traitement des données pour l'évaluation des biomasses est proposée pour les systèmes lagonaires tropicaux, à fond plat, profondeurs faibles (de 3 à 8 m) et houle réduite. Les méthodes de mesure de l'angle d'échantillonnage et de déconvolution des TS #in situ$ sont adaptées de la littérature pour ce cas particulier. L'application de cette méthodologie au golfe de Batabano (Cuba) montre que les meilleures évaluations de biomasses sont obtenues par comptage, et que la précision des mesures dépend étroitement des conditions extérieures : prospection de nuit exclusivement, mer plate et absence de lune. (Résumé d'auteur)
Tipo: Text Palavras-chave: METHODOLOGIE; PROSPECTION ACOUSTIQUE; POISSON; BIOMASSE; LAGON.
Ano: 1990 URL: http://www.documentation.ird.fr/hor/fdi:31200
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Situación actual de los recursos pesqueros del Archipiélago Sabana-Camagüey, Cuba OceanDocs
Claro, R.; García Arteaga, J.P.; Gobert, B.; Cantelar Ramos, K.; Valle Gómez, S.V.; Pina Amargos, F..
The main objectives of the present study were to describe the historical development of finfish fisheries in the Archipelago Sabana-Camagüey and adjacent northeast region (Cuba), and to assess the current status of fisheries resources. Species and size composition of trawl, trap, and gillnet catches were surveyed, fisheries statistics from fishing enterprises of the area were analysed, and experienced fishermen were interviewed. The historical evolution of catches and changes in fishing effort since 1962 is described. After a growth phase in catches resulting from increasing fishing effort, the fisheries reached a level of overexploitation by the second half of the 70s. The reduction of fishing effort and the establishment of some regulations has...
Tipo: Journal Contribution Palavras-chave: Fishery resources; Catch/effort; Catch composition; Fishery resources; Catch composition; Http://aims.fao.org/aos/agrovoc/c_2942; Http://aims.fao.org/aos/agrovoc/c_1384.
Ano: 2004 URL: http://hdl.handle.net/1834/3050
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