Data/hora: 05/06/2024 03:38:18

Provedor de dados: 	Institutional Archive of Ifreme (ArchiMer)	
País: 	France	
Título: 	Evolution du peuplement halieutique de la baie de Vilaine au cours des décennies 1980 et 1990	
Autores: 	Desaunay, Yves; Guerault, Daniel.	
Data: 	2003-02	
Ano: 	2003	
Palavras-chave: 	Habitat; Survey; Bay of Vilaine; Fish community; Habitat; Suivi; Baie de Vilaine; Poissons; Peuplement.	
Resumo: 	A beam trawl survey of the Bay of Vilaine was conducted from 1981 to 1997. Changes in the commercial fish community were analyzed by comparing the characteristics at the year and decadal scales. The community structure and nursery function of the Bay were steady during the period. However, specific richness, assiduity and distribution indices demonstrated a reduction in the second decade. The global abundance fell from 105.8 ind.ha-1 to 31.3 ind.ha-1. This trend was less marked for the external more marine stratum, which exhibited the lowest densities. The results are discussed in terms of ecological meaning of such a community, compared with the overall demersal fish community. The reasons of the decrease are questioned regarding nursery habitat, local fishing pressure and estuarine habitat management. Such a survey provide reference points to monitor the coastal ecosystem health.	
Tipo: 	Text	
Idioma: 	Francês	
Identificador: 	http://archimer.ifremer.fr/doc/2003/rapport-1288.pdf	
Relação: 	http://archimer.ifremer.fr/doc/00000/1288/	
Formato: 	application/pdf