Data/hora: 01/06/2024 12:05:41

Provedor de dados: | 5
País: | France
Título: | Analyse et estimation des puissances de pêche
Autores: | Laurec, Alain.
Data: | 1977
Ano: | 1977
Palavras-chave: | Histoire Ifremer.
Resumo: | An analysis of the fishing power concepts leads to a distinction between local fishing power (at a given location). and overall fishing power. Overall fishing power takes into account the ability to detect and quickly exploit rich areas. In order to estimate local fishing power it is necessary to compare the catches of different ships operating in neighbouring areas. Such a comparison performed on two ships will give an estimate of their relative fishing powers. The closer the two ships are, the more reliable will be the estimate. A weighting function must be used, and this function is related to the spatial heterogeneity of the fish density. Such a function is provided by the variogram as defined by Matheron (1965). [NOT CONTROLLED OCR]
Tipo: | Text
Idioma: | Francês
Identificador: | http://archimer.ifremer.fr/doc/1977/publication-5169.pdf
Editor: | Conseil international pour l'exploration de la mer
Relação: | http://archimer.ifremer.fr/doc/00000/5169/
Formato: | application/pdf
Fonte: | Journal du Conseil international pour l'exploration de la mer (Conseil international pour l'exploration de la mer), 1977 , Vol. 37 , N. 2 , P. 173-185
Fonte: | Conseil international pour l'exploration de la mer