Data/hora: 03/06/2024 05:09:00

Provedor de dados: | 5
País: | France
Título: | Les campagnes d'évaluation du stock de coquilles Saint-Jacques en Manche orientale : méthodologie et estimation des indices d'abondance
Autores: | Vigneau, Joel; Fifas, Spyros; Foucher, Eric.
Data: | 2001-04
Ano: | 2001
Palavras-chave: | Eastern Channel; Bay of Seine; Dredge; Pecten maximus; Scallop; Survey; Assessment; Manche orientale; Baie de Seine; Drague; Pecten maximus; Coquille Saint Jacques; Campagne; Evaluation.
Resumo: | The methodology used for obtaining absolute abundance indices for Eastern Channel scallop is described in this paper. For the survey (COMOR), stratified multi-stage random sampling is used. The number of sampled units is computed based on variance estimates from the last survey. Knowledge of gear (Brittany dredge with a diving plate) selectivity and efficiency parameters is required for estimating total exploitable biomass and absolute abundance indices by age and strata. Details of the mathematical development of all estimators are given. A non parametric bootstrap provides confidence intervals for all estimates.
Tipo: | Text
Idioma: | Francês
Identificador: | http://archimer.ifremer.fr/doc/2001/rapport-6550.pdf
Relação: | http://archimer.ifremer.fr/doc/00000/6550/
Formato: | application/pdf