Data/hora: 02/06/2024 06:28:31

Provedor de dados: 	20	
País: 	Belgium	
Título: 	Pesca comercial y captura por unidad de esfuerzo de la merluza (Merluccius hubbsi) entre 34º S-41º S durante el período 1986-2005 y evidencias sobre cambios en la distribución y composición por tallas del recurso

Commercial fishing and catch per unit of effort of hake (Merluccius hubbsi) between 34º S-41º S during the 1986-2005 period and evidence of changes in the resource size distribution and composition	
Autores: 	Irusta, G.; Castrucci, R.; Simonazzi, M.	
Data: 	2010-04-28	
Ano: 	2009	
Palavras-chave: 	Catch/effort; Commercial fishing; Catch statistics; Fishing effort; Size distribution; Exclusive economic zone; Gadoid fisheries; Marine environment; Marine environment; Fishing effort; Http://aims.fao.org/aos/agrovoc/c_4610; Http://aims.fao.org/aos/agrovoc/c_24027.	
Resumo: 	The activity of the hake (Merluccius hubbsi) commercial offshore ice chilling fleet and its relation to concentration, distribution and population areas of the stock distributed between 34ºS - 41ºS is described. The catch per unit of effort (CPUE) for the 1986-2005 period was estimated applying the General Linear Model. Data derived from the offshore fishing logs provided by the Argentine Secretary of Agriculture, Farming, Fishing and Food Administration and the information obtained in research cruises carried out in 1994, 1996-2001, 2003-2005 to evaluate the resource population abundance. During the main fishing time in the sector (quarter 2) and up until 1991 the fleet scattered within the Argentine-Uruguayan Common Fishing Zone (SW Atlantic). Later on the activity concentrated south of 39ºS where catches and the nominal effort reached their maximum value to decrease northerly as a result of the depletion of stock concentration and the development of the hake fishery in the Patagonian area. The zone south of 39º S is a sector of low concentrations where adult individuals prevail and a transfer zone of the fleet towards Patagonian fishing grounds (41ºS - 48ºS). The annual CPUE estimated with the General Linear Model decreased by 49% in the study period. As of 2000 the fishery became variable as regards catches, fishing effort and operation areas and more dependent on important recruitments as a consequence of the marked decrease of adults population abundance.	
Tipo: 	Journal Contribution	
Idioma: 	Espanhol	
Identificador: 	INIDEP informe técnico, 74. p. 1-37

0327-9642

http://hdl.handle.net/1834/3462	
Editor: 	Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero