Data/hora: 03/06/2024 02:22:49

Provedor de dados: | 5
País: | France
Título: | Spatio-temporal organization patterns of demersal assemblages of the east coast of Corsica (Mediterranean Sea)
Autores: | Gaertner, Jean-claude; Bertrand, Jacques; Samani, D; Souplet, Arnauld.
Data: | 2005-06
Ano: | 2005
Palavras-chave: | Corsica; Mediterranean Sea; Stability; Multiway table analysis; Trawl surveys; Fish assemblages; Spatial structures.
Resumo: | The paper deals with the spatio-temporal organization patterns demersal assemblages along the east coast of Corsica. We analysed data collected by the first standardized experimental bottom trawl surveys performed in this region from 1994 to 1999 (MEDITS programme). The use of a multiway table method (STATIS-CoA) showed that the spatial organization pattern of the demersal assemblages of eastern Corsica was highly stable during the period studied. This pattern was structured around three bathymetric areas (i) the continental shelf (between 50 to 200 m depth), (ii) the upper slope (from 200 to 500 m) and (iii) the deeper slope (from 500 to 800 m), but it did not show any heterogeneity in relation with latitude. Along the cast coast of Corsica-characterized by one of the lowest fishing pressure rates within the whole northern Mediterranean Sea and by the scarcity of information on fishing patterns-our results contribute to the basic information required for multispecies fishery management. They suggest that all the trawlable areas along the cast coast of Corsica could be considered as a single biogeographical unit, possibly split up into three bathymetric strata. Furthermore, if compared with results from studies carried out in Mediterranean regions with more intensive fishing rates, our results might provide a quantitative basis for achieving a better understanding of the impact of fishing pressure on organization patterns of demersal assemblages.
Tipo: | Text
Idioma: | Inglês
Identificador: | http://archimer.ifremer.fr/doc/2005/publication-692.pdf
Editor: | Observatoire Océanologique de Banyuls sur mer
Relação: | http://archimer.ifremer.fr/doc/00000/692/
Formato: | application/pdf
Fonte: | Vie et Milieu / Life &amp; Environment (0240-8759) (Observatoire Océanologique de Banyuls sur mer), 2005-06 , Vol. 55 , N. 2 , P. 81-89
Fonte: | 2005 Observatoire Océanologique de Banyuls sur mer