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Reunion island pelagic longline fishery characterization and standardization of albacore catch rates ArchiMer
Coelho, Rui; Nikolic, Natacha; Evano, Hugues; Miguel, N; Santos; Bourjea, Jerome.
This document presents a characterization of the Reunion Island pelagic longline fishery, with a first description of the albacore catches, catch-at-size, and the standardized catch per unit of effort (CPUE) series for the period 1992-2013. The spatial catch and effort analysis revealed the major areas of operation of the fishery, and the identification of the fishery core region closer to the Reunion Island area. The trends in the albacore catch-at-size were analyzed annually, and compared between the seasons and regions of operation of the fishery. The albacore nominal CPUEs were calculated as number of fish per 1000 hooks, and were standardized using Generalized Linear Models (GLMs). Four different modeling approaches were used (including Tweedie,...
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Ano: 2014 URL: http://archimer.ifremer.fr/doc/00208/31926/30344.pdf
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Technical mitigation measures for sharks and rays in fisheries for tuna and tuna-like species: turning possibility into reality ArchiMer
Poisson, Francois; Abascal Crespo, Francisco; Ellis, Jim R.; Chavance, Pierre; Pascal, Bach; Santos, Miguel. N.; Seret, Bernard; Korta, Maria; Coelho, Rui; Ariz, Javier; Murua, Hilario.
Tuna fisheries have been identified as one of the major threats to populations of other marine vertebrates, including sea turtles, sharks, seabirds and marine mammals. The development of technical mitigation measures (MM) in fisheries is part of the code of conduct for responsible fisheries. An in-depth analysis of the available literature regarding bycatch mitigation in tuna fisheries with special reference to elasmobranchs was undertaken. Studies highlighting promising MMs were reviewed for four tuna fisheries (longline, purse seine, driftnets and gillnet, and rod and line – including recreational fisheries). The advantages and disadvantages of different MMs are discussed and assessed based on current scientific knowledge. Current management measures for...
Tipo: Text Palavras-chave: Mitigation; Elasmobranch; Bycatch; Pelagic; Mortality; Tuna regional fishery management organizations.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00364/47474/47493.pdf
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