Data/hora: 14/06/2024 08:44:01

Provedor de dados: | 5
País: | France
Título: | An overview on the use of precautionary approach and tuna management
Autores: | Fonteneau, Alain; Fromentin, Jean-marc.
Data: | 2000
Ano: | 2000
Palavras-chave: | Tunas; Precautionay approach; Atlantic; Management; Assessment.
Resumo: | This paper develops a critical overview of the various problems and uncertainties faced in tuna stock assessment, management and conservation. This presentation is based on Atlantic tunas, but also on various tuna stocks worldwide. Tuna jisheries management is characterized by major uncertainties in the stock assessment; since these stock assessments are always done only on jishery data which are often biased. Fortunately most tuna stocks are showing a strong resistance to overfishing. These major characteristics of tuna stocks and jisheries, and the bias in the scientific analysis, are presented and discussed. As a result, many of the reference point recommended for the precautionary approach applied to jisheries are often quite inappropriate for tuna stocks and jisheries. It is quite clear however that the precautionary approach could help to manage and to conserve tuna stocks, primarily because of these large uncertainties in most stock assessments. This precautionary management policy should carefully evaluate the risk of taking measures which are unnecessary in terms of stock conservation, and which could have deleterious efJects on the jishery economy. Precautionary management should be based primarily on reference indices which are neutral and unbiased, giving little weight for instance to sequential population analysis results (too often biased), and more importance to strong selected indices such as sizes taken, size of the areas jished versus size of their habitat, trend of catches, etc?
Tipo: | Text
Idioma: | Inglês
Identificador: | http://archimer.ifremer.fr/doc/00194/30564/28984.pdf
Editor: | ICCAT
Relação: | http://archimer.ifremer.fr/doc/00194/30564/
Formato: | application/pdf
Fonte: | Collective Volume of Scientific Papers (1021-5212) (ICCAT), 2000 , Vol. 51 , N. 6 , P. 2085-2094
Fonte: | ICCAT