Data/hora: 10/06/2024 11:42:14

Provedor de dados: 	5	
País: 	France	
Título: 	Modelling seasonal and annual variation in size at functional maturity in the European lobster (Homarus gammarus) from self-sampling data	
Autores: 	Laurans, Martial; Fifas, Spyros; Demaneche, Sebastien; Brerette, Stéphane; Debec, Olivier.	
Data: 	2009-10	
Ano: 	2009	
Palavras-chave: 	Self sampling; Homarus gammarus; Functional maturity; Catchability.	
Resumo: 	Fishers from Le Croisic (France) measure all the lobsters (Homarus gammarus) they capture, indicating their sex and whether the females are ovigerous or non-ovigerous. Between 2003 and 2006 and mainly between April and September, 16 884 lobsters were measured in this manner. These self-sampled data were used to study catchability and functional maturity of lobsters. The sex ratio was 50%, and catchability did not change if a female was ovigerous or non-ovigerous. With the help of a logistic function, a relationship was established between body size and the proportion of ovigerous females. For the study area, 100% of the females were mature upon reaching a carapace length (CL) of 115 mm, and the proportion of ovigerous females reached 70% each year. The L50 value evolved over a CL of 103–106 mm. From the size when 100% of the females matured (115 mm), there was a larger proportion of ovigerous females than in other studies carried out in more northern European areas.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/2009/publication-7319.pdf

DOI:10.1093/icesjms/fsp166	
Editor: 	Oxford university press	
Relação: 	http://archimer.ifremer.fr/doc/00000/7319/	
Formato: 	application/pdf	
Fonte: 	ICES Journal of Marine Science (1054-3139) (Oxford university press), 2009-10 , Vol. 66 , N. 9 , P. 1892-1898	
Fonte: 	2009 ICES/CIEM