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	Provedor de dados ArchiMer (1) Autor Lorance, Pascal (1) Marandel, Florianne (1) Trenkel, Verena M. (1) Palavra-chave Bayes (1) Censored data (1) Data poor (1) Population dynamics (1) State-space model (1) Stock assessment (1) Thornback ray (1) Mais... Tipo do documento Text (1) Ano 2016 (1) País France (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última A Bayesian state-space model to estimate population biomass with catch and limited survey data: application to the thornback ray (Raja clavata) in the Bay of Biscay ArchiMer Marandel, Florianne; Lorance, Pascal; Trenkel, Verena M.. The thornback ray (Raja clavata) in the Bay of Biscay is presumed to have declined during the 20th Century. To evaluate this decline and estimate biomass trajectories, a hypothetical catch time series was created for the period 1903-2013. A Bayesian state-space biomass production model with a Schaefer production function was fitted to the hypothetical catch time series and to a shorter research vessel Catch Per Unit Eeffort (CPUE) time series (1973-2013, with missing years). A censored likelihood made it possible to obtain biomass estimates without a CPUE time series or only with an estimate of biomass depletion. A simulation-estimation approach showed a high sensitivity of results to the prior for the intrinsic growth rate. The model provided biomass... Tipo: Text Palavras-chave: Population dynamics; Stock assessment; Data poor; Censored data; Bayes; Thornback ray; State-space model. Ano: 2016 URL: http://archimer.ifremer.fr/doc/00359/47032/46947.pdf Registros recuperados: 1 Primeira ... 1 ... Última

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