Data/hora: 01/06/2024 11:42:55

Provedor de dados: | 5
País: | France
Título: | La pêcherie du tourteau Cancer pagurus sur les cotes de Bretagne Sud : déplacements, croissance, reproduction
Autores: | Le Foll, Anne.
Data: | 1982
Ano: | 1982
Palavras-chave: | Reproduction; Growth; Migration; South Brittany; Northern Biscay; Fishery; Cancer pagurus; Edible crab; Reproduction; Croissance; Migration; Bretagne sud; Nord Gascogne; Pêche; Cancer pagurus; Crabe tourteau.
Resumo: | Targeted fishing of the edible crab Cancer pagurus has progressively replaced that of overfished lobster and spiny lobster stocks.  Over the past few years it has become a significant activity for small-scale fishing vessels from various harbours on the Channel and the Atlantic French coast. Official figures show that national landings amounted to 10,000 tonnes in 1980. In spite of this fishery being recent, drops in yield in some areas have brought about changes in the way it is exploited, with more distant fishing grounds and redeployments.  This doctoral thesis study was conducted in relation with the Scientific and Technical Institute of Maritime Fisheries (ISTPM), contributing to the implementation of a rational edible crab management policy.  Following an introduction to coastal fisheries in southern Brittany describing the fleet and catches, the author analyses the species' biological parameters. The first part presents the study of their movements using tagging and recapture. The second part is devoted to growth, comparing the results of various approaches and proposing an estimation of Von Bertalanffy growth model parameters.  The third part is a detailed study of crab reproduction, determining the size at first maturity of males and females and females fecundity.
Tipo: | Text
Idioma: | Francês
Identificador: | http://archimer.ifremer.fr/doc/1982/these-1204.pdf
Editor: | Université de Bretagne occidentale
Relação: | http://archimer.ifremer.fr/doc/00000/1204/
Formato: | application/pdf