Data/hora: 07/06/2024 08:47:46

Provedor de dados: | 5
País: | France

Título:

Fluctuations des captures de civelles (Anguilla Anguilla L.) et analyse de la variation de leur capturabilité dans l'estuaire de l'Adour

Fluctuations of glass-eels (Anguilla Anguilla L..) catches and variability of their catchability in the Adour estuary

Autores: | De Casamajor, Marie-noelle; Bru, N.; Prouzet, Patrick.
Data: | 2001
Ano: | 2001
Palavras-chave: | Capturabilité; Civelle; Estuaire de l'Adour; Phase lunaire; Catchability; Glass eels; Migratory behaviour; Adour estuary.
Resumo: | Analysis of glass eels catches from 1927 to 1998 in the Adour estuary showed different periods of successive decrease. Fishing periods between 1985 to 1993 were studied iwn order to observe impact of hydroclimatic conditions on the level of catch per unit of effort. This study took place in January when glass eels accessibility by the fishery was generally the highest. With hand and trawl netting that filtered the upper part of the water column, only individuals located close to the surface were accessible. Consequently, factors acting on the migration of glass eels in the water column have a great importance on the fishing success. Among environmental conditions, moon phase and temperature influence were determinant factors on catch variability but a lack of relationship between tide coefficient and catches is found. These studies showed the importance of night brightness on the migratory behaviour of glass eels and consequently on the accessibility of that species by the fishery.
Tipo: | Text
Idioma: | Francês

Identificador:

https://archimer.ifremer.fr/doc/00480/59145/61773.pdf

DOI:10.1051/kmae/2001057

https://archimer.ifremer.fr/doc/00480/59145/

Editor: | EDP Sciences
Formato: | application/pdf
Fonte: | Bulletin Français de la Pêche et de la Pisciculture (0767-2861) (EDP Sciences), 2001 , N. 357-360 , P. 387-404

Fonte:

info:eu-repo/semantics/openAccess

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