Data/hora: 01/06/2024 04:47:25

Provedor de dados: | 5
País: | France
Título: | Amélioration de l'évaluation des stocks de mollusques cultivés en Charente- Maritime
Autores: | Bacher, Cedric; Deslous-paoli, Jean-marc; Heral, Maurice; Prou, Jean.
Data: | 1986-04
Ano: | 1986
Palavras-chave: | Modélisation; Estimation; Echantillonnage; Mollusques; Marennes Oléron; Evaluation stocks.
Resumo: | The expansion of shellfish culture businesses (oysters, mussels, clams...) gives way to a competition for the use of limited food resources, especially in the Marennes-Oléron basin where water circulation is slow. Increasing the amount of cultivated molluscs leads, from a biological point of view, to:- a drop in growth performances- a rise in chronic mortalities, higher and higher, due to a weakness in the physiological state with a lack of stocks which would have compensated the habitat seasonal shortages (end of winter, etc...)- a greater weakness to diseases, linked to a deficient physiological state and a density rise which increases the proximity rate and thus, parasite propagation speed.For these primary reasons, and for the future of oyster culture, it is necessary to acquire a number of data. In the first place, it is important to have a good estimation of cultivated stocks and to monitor the cultivated population's growth and mortality.
Tipo: | Text
Idioma: | Francês
Identificador: | http://archimer.ifremer.fr/doc/1986/rapport-3841.PDF
Relação: | http://archimer.ifremer.fr/doc/00000/3841/
Formato: | application/pdf