Data/hora: 05/06/2024 14:18:20

Provedor de dados: | 5
País: | France
Título: | Croissance de l'huître creuse Crassostrea gigas dans le bassin de Marennes-Oléron de 1987 à 1998
Autores: | Le Moine, Olivier; Geairon, Philippe.
Data: | 2000
Ano: | 2000
Palavras-chave: | Marennes Oleron bay; Crassostrea gigas; Monitoring network; Oyster growth and production; Marennes Oléron; Crassostrea gigas; Réseau de surveillance; Production; Croissance.
Resumo: | This report aims to study the oyster Crassostrea gigas growth and production over a 12 years time's span in the Bay of Marennes Oleron. Results of 12 years of oyster growth did not show any significant oyster biological productivity decrease, nor trend. In contrast, annual growth showed a large variability, which will be correlated with environmental conditions. Moreover, annual growth variability was greater than the variability due to site location, but the Ronce experimental site. The later, located in the south west part of the Bay of Marennes Oleron, has been the leading oyster growth site since 1989. The annual shell growth variability was greater than oyster dry meat weight fluctuation. Both 1990 and 1991 years were characterized by the largest growth rates over the last decade. Site ranking from one year to another was variable with regard to shell weight and dry meat weight. The oyster growth observed during the fall was mostly correlated to a shell weight increase. During the last decade, only 25% of experimental sites were characterized by a fall and limited oyster meat growth. A significant 4-6% lipids concentration decrease was correlated with the summer spawning event. The carbohydrates concentration did not show any significant trend over the early monitoring development. High protein concentrations as well as the proteins-carbohydrates-lipids sum of concentration are correlated with high oyster growth rates.
Tipo: | Text
Idioma: | Francês
Identificador: | http://archimer.ifremer.fr/doc/2000/rapport-1588.pdf
Relação: | http://archimer.ifremer.fr/doc/00000/1588/
Formato: | application/pdf