Data/hora: 08/06/2024 01:31:09

Provedor de dados: | Institutional Archive of Ifreme (ArchiMer)
País: | France
Título: | Is a management framework based on spawning-stock biomass indicators sustainable ? A viability approach
Autores: | De Lara, Michel; Doyen, Luc; Guilbaud, Therese; Rochet, Marie-joelle.
Data: | 2007-05
Ano: | 2007
Palavras-chave: | Viability; Sustainable management; Indicators; ICES precautionary approach.
Resumo: | Fisheries management agencies have to drive resources on sustainable paths, i.e. within defined boundaries for an indefinite time. The viable-control approach is proposed as a relevant method to deal with sustainability. We analyse the ICES precautionary approach (PA) by means of the notion of viability domain, and provide a mathematical test for sustainability. It is found that the PA based on spawning-stock biomass (SSB) and fishing mortality (F) indicators is sustainable only when recruits make a significant contribution to SSB. In this case, advice based upon SSB, with an appropriate reference point, is sufficient to ensure sustainability. In all other cases, SSB is not a sufficient metric of stock productivity and must be complemented with other management indicators to ensure sustainability. The approach is illustrated with numerical applications to the northern hake and Bay of Biscay anchovy.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/2007/publication-2821.pdf

DOI:10.1093/icesjms/fsm024

Editor: | Oxford university press
Relação: | http://archimer.ifremer.fr/doc/00000/2821/
Formato: | application/pdf
Fonte: | ICES Journal of Marine Science (1054-3139) (Oxford university press), 2007-05 , Vol. 64 , N. 4 , P. 761-767
Fonte: | 2007 ICES/CIEM