Data/hora: 05/06/2024 10:09:04

Provedor de dados: | 5
País: | France
Título: | Capacity management, not stock status or economics, drives fleet dynamics in the Bay of Biscay ecosystem on a decadal time scale
Autores: | Rochet, Marie-joelle; Daures, Fabienne; Trenkel, Verena.
Data: | 2012-04
Ano: | 2012
Resumo: | This paper introduces a semiqualitative approach to analyse the joint dynamics of fleets and stocks in a multispecies, multifleet fishery. We ask whether changes in fleets affect resource dynamics and whether trends in resource influence fleet dynamics more than external drivers do. External drivers include vessel buyback, fuel price, and fish prices, as well as environmental fluctuations. Resource status is measured by abundance and length metrics; fleet capacity is measured by total horse power, and economic metrics such as profitability and earnings are examined as well. A maximum likelihood approach is used to identify the combined metric trends with the largest support in the data. The approach is applied to the French Bay of Biscay fisheries in 2000-2007. Combined-metric time trends suggest that decreases in fleet capacity did not result in decreasing fishing impacts; trends in stocks and fish prices were not the major drivers of changes in fleets either. Rather, the vessel buyback program might have been the main factor determining fleet dynamics over that period.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00076/18730/16336.pdf

DOI:10.1139/F2012-002

Editor: | Canadian Science Publishing, Nrc Research Press
Relação: | http://archimer.ifremer.fr/doc/00076/18730/
Formato: | application/pdf
Fonte: | Canadian Journal Of Fisheries And Aquatic Sciences (0706-652X) (Canadian Science Publishing, Nrc Research Press), 2012-04 , Vol. 69 , N. 4 , P. 695-710
Fonte: | 2012 NRC Research Press