Data/hora: 01/06/2024 09:40:19

Provedor de dados: | 5
País: | France
Título: | Programme général de recherche sur la nacre. Écophysiologie de l'huître perlière, approche des relations entre  la croissance de l'huître Pinctada  margaritifera  et le milieu dans le lagon de Takapoto
Autores: | Buestel, Dominique; Pouvreau, Stephane; Tiapari, Jerome; Bougrier, Serge; Chabirand, Jean-michel; Geairon, Philippe; Fougerouse, A.
Data: | 1995-06
Ano: | 1995
Palavras-chave: | Atoll; Pearl oyster; Carrying capacity; Growth; Pinctada margaritifera; Atoll; Huître perlière; Capacité Trophique; Croissance; Pinctada margaritifera.
Resumo: | A study of pearl oysters Pinctada margaritifera growth and mortality was done on a monthly basis between June 1990 and September 1991 in Takapoto atoll (Tuamotu archipelago). Meanwhile, sampling parameters representative of bivalves food showed a remarquable spatial stability whithin the lagoon. The amplitude of temporal variability varied in the order of some days. Carrying capacity appears low : energetic content of particulate material in waters is about 2 joules/liter, ten times lower than in temperate areas. On the opposite, seasonal effect is reduced and particulate food is always available. Oysters rearing conditions were appropriate during the studied period with a low mortality rate and a regular growth in size (from 97 mm to 136 mm). Pearls oysters regularly used the available energy without accumulating tissue reserves. Gonad maturation was continue during the year with a strong variability between individuals. Growth of reared oysters was faster than the growth of natural stock oysters. Two kinds of methods for a optimized management of pearl oyster culture are presented : regular acquisition on growth, rearing stocks and environnement data and direct determination of carrying capacity by analytic methods
Tipo: | Text
Idioma: | Francês
Identificador: | http://archimer.ifremer.fr/doc/1995/rapport-1642.pdf
Relação: | http://archimer.ifremer.fr/doc/00000/1642/
Formato: | application/pdf