Data/hora: 09/06/2024 04:14:48

Provedor de dados: | 5
País: | France
Título: | Echantillonnage des populations naturelles de mollusques compétiteurs trophiques des huîtres cultivées Crassostrea gigas du bassin de Marennes-Oléron : aspects méthodologiques
Autores: | Sauriau, Pierre-guy.
Data: | 1986-10-09
Ano: | 1986
Palavras-chave: | Cerastoderma edule; Macoma balthica; Marennes Oleron Bay; Crassostrea gigas; Stock assessment; Cerastoderma edule; Macoma balthica; Marennes Oléron; Crassostrea gigas; Echantillonnage.
Resumo: | The main problems involved in making biomass and density estimates of benthic mol1uscs are the choice of a sampling plan, the level of systematic errors and random errors. A stratified random sampling after optimum allocation was used in the case. The benthic molluscs estimates (biomass or density) are highly variable, due to their aggregated distribution. The sampling gear used is a Smith Mc-lntyre grab which introduce a bias in the estimates. Nevertheless, the Macoma baLthica community was predominant in the bay but Cerastoderma edul.e appeared to be the dominant specie.
Tipo: | Text
Idioma: | Francês
Identificador: | http://archimer.ifremer.fr/doc/1986/acte-2971.pdf
Editor: | Counc. Meet. of the Int. Counc. for the Exploration of the Sea, (Copenhagen (Denmark)), (9 Oct 1986)
Relação: | http://archimer.ifremer.fr/doc/00000/2971/
Formato: | application/pdf