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Approche de l'impact écologique de la pêcherie thonière au filet maillant dérivant en Atlantique nord-est ArchiMer
Goujon, Michel; Antoine, Loic; Collet, Anne; Fifas, Spyros.
This document presents the results of a study on the impact of the french albacore tuna drift net fishery, mainly at the dolphins population level. Data collected during two embarked observers campains in 1992 and 1993 and the results of a sighting survey in 1993 give an estimation of the population size of common and striped dolphins (61 888 and 73 843) and mean values of ratio fishing of mortality (0.7 and 1.6%). A model was built in order to simulate the effect of the 5% upper limits of fishing mortality (1.5 and 3%). These values would leed to an annual rate of decrease of -1 %. It is unlikely that such values would jeopardize the survival and the presence of these species. Total incidental catches represent 15% of these total catch; albacore tuna...
Tipo: Text Palavras-chave: Impact écologique; Filets maillants; Mammifères marins; Germon; Ecological impact; Drift nets; Marine mammals; Albacore.
Ano: 1993 URL: https://archimer.ifremer.fr/doc/1993/rapport-6862.pdf
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Contamination par les organochlorés des dauphins de Commerson des îles Kerguelen ArchiMer
Abarnou, Alain; Robineau, Daniel; Michel, Pierre.
Top predators like marine mammals have been intensively used for monitoring the contamination of the marine environment, particularly in industrialized coastal areas of the Northern Atlantic Ocean. Such data concerning contamination in the Southern hemisphere are very scarce. Samples were taken in the fatty protuberance of the forehead (melon) from eleven Commerson's dolphins (Cephalorhynchus commersonii, Lacépède, 1804) caught in the coastal waters of the Kerguelen Islands (Southern Indian Ocean). They were analyzed for DDT, PCB and HCB, using capillary gaz chromatography. The levels of contamination [DDT= 1 150 ± 650, PCB = 1 150 ± 770, HCB=500±300ng/g of extracted matter (lipids)] are between ten and a hundred times Jess than those found in similar...
Tipo: Text Palavras-chave: Organochlorés; Mammifères marins; Océan austral; Iles Kerguelen; Organochlorines; Marine mammals; Southern Ocean; Kerguelen Islands.
Ano: 1986 URL: http://archimer.ifremer.fr/doc/00111/22273/19948.pdf
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Guide de la mensuration des poissons, mollusques, crustacés et mammifères marins en halieutique ArchiMer
Badts, Vincent; Bertrand, Jacques.
This guide presents the rules of measurement of fishes, mollusks, shellfishes and marine mammals applicable to the halieutic observations coordinated by lfremer, including the actions driven within the framework of control networks coordinated at the international level, in particular within the European regulation on the data collection regulation (OCR).
Tipo: Text Palavras-chave: Mensuration; Taille; Poissons; Mollusques; Crustacés; Mammifères marins; Halieutique; Protocoles; Measurement; Size; Fishes; Mollusks; Shellfishes; Marine mammals; Halieutic; Protocols.
Ano: 2009 URL: https://archimer.ifremer.fr/doc/00503/61477/65257.pdf
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