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Ecología trófica del pez palo, Percophis brasiliensis (Quoy y Gaimard, 1825) en el ecosistema costero argentino-uruguayo (34º' S-41º' S) OceanDocs
Milessi, A.C.; Marí, N.R..
A total of 1,255 stomachs of Brazilian flathead, Percophis brasiliensis, caught on commercial fleet vessels in the Argentine-Uruguayan Coastal Ecosystem between November 2008 and December 2009 was analyzed. 657 (52.4%) had content and 598 (47.6%) were empty. According to the Index of Relative Importance the species consumed, mainly, bony fishes (98.56%) followed by molluscs (1.37%) and crustaceans (0.05%). The most important preys were Trachurus lathami, (64.63%), Engraulis anchoita (27.37%) and squid Loligo sanpaulensis (1.36%). The increase of preys size was proportional to the predator length growth. The 4.25 trophic level value positions Percophis brasiliensis as a tertiary piscivorous consumer.
Tipo: Journal Contribution Palavras-chave: Stomach content Predation Trophic levels Coastal fisheries Percophis brasiliensis PSW; Argentina; Buenos Aires ASW; Uruguay marine environment.
Ano: 2012 URL: http://hdl.handle.net/1834/4905
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Aspectos de la pesca de la polaca (Micromesistius australis) por parte de la flota argentina en el período 1989 - 1995 OceanDocs
Wöhler, O.C.; Marí, N.R..
Basic aspects concerning southern blue whiting (Micromesistius australis) fishing by the Argentine fleet in the period 1989-1995 are analized. Catch and effort statistics, fleet operation modalities and spatial and temporary characteristics of fishing activities are included. The basic information to perform this analysis was collected from the fishing statistics provided by the Subsecretaría de Agricultura, Ganadería y Pesca of Argentina and from reports of the Observers Program on board of the commercial fleet. It was in 1989, when the first ship for surimi production entered the fishery, that southern blue whiting catches carried out by the Argentine fleet became important. As of 1989 catches increased in a steady way to stabilize at near 100,000 annual...
Tipo: Journal Contribution Palavras-chave: Catch statistics; Fishing grounds; Catch/effort; Fishing grounds; Http://aims.fao.org/aos/agrovoc/c_2947.
Ano: 1999 URL: http://hdl.handle.net/1834/2528
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