Data/hora: 04/06/2024 01:47:41

Provedor de dados: 	5	
País: 	France	
Título: 	Application to the albacore (Thunnus alalunga.) monthly catch per unit of effort (C. P. U. E.) by the Atlantic Japanese longline fishery	
Autores: 	Laurec, Alain; Le Gall, Jean-yves.	
Data: 	1975-06	
Ano: 	1975	
Palavras-chave: 	Histoire Ifremer.	
Resumo: 	Two different statistical techniques of analysis have been worked out in order to analyse the components of available data of catch per unit of effort (C. P. U. E. by month), used as an abundance index, for the Atlantic Japanese tuna longline fishery harvesting north-southern stocks of albacore (Thunnus alalunga). These techniques have been developed in order to estimate different components of this abundance index, such as yearly trend, a seasonal component, fishing effort impact, and unknown residual component. Both techniques combine these components either in an additive model or multiplicative one and allow to assign to the trend a continuous or discrete (stepwise) shape. The first technique is simple, it is called " moving average " and applies exclusively to complete sets of data without blank. The second technique is more powerful, it is a generalization of the first one, it uses the regressive methods and applies to complete or incomplete sets of data. [NOT CONTROLLED OCR]	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/1975/publication-5085.pdf	
Editor: 	Far Seas Fisheries Research Laboratory	
Relação: 	http://archimer.ifremer.fr/doc/00000/5085/	
Formato: 	application/pdf	
Fonte: 	Bulletin of the Far Seas Fisheries (Far Seas Fisheries Research Laboratory), 1975-06 , N. 12 , P. 181-204	
Fonte: 	Far Seas Fisheries Research Laboratory