Data/hora: 06/06/2024 00:51:01

Provedor de dados: 	Institutional Archive of Ifreme (ArchiMer)	
País: 	France	
Título: 	Prévention des mortalités estivales de naissain d'huîtres creuses. Expérimentations sur estran (Rivière d'Auray, été 1998). 1 : comparaison de différents lots de naissain. 2 : tentative "d'endurcissement» du naissain".	
Autores: 	Mazurie, Joseph; Kuntz, Gregoire; Claude, Serge; Hirata, Toshio.	
Data: 	1999-03	
Ano: 	1999	
Palavras-chave: 	Huître creuse; Mortalité; Estran; Vitalité; Endurcissement; Gigas oyster; Mortality; Intertidal zone; Vitality; Hardening.	
Resumo: 	Cupped oysters, Crassostrea gigas, often suffer abnormal mortalities during summer, at one year of age. Both scientists and professionnals are interested in finding practical methods to reduce these mortalities. The present study tries to answer two questions : 1- are there any differences of summer mortalities among various batches of spat available from spat collection areas (Arcachon and Charentes) ?  2- is it possible to improve summer survivals by wintering the spat at high air exposure locations (« hardening » procedure) ?  The first comparison did not reveal any significant difference between the 16 batches of spat tested (mortalities between 5 % and 30 %).  The second comparison in the same summer conditions was not able to show to any improvement from the « hardened » spat (all mortalities below 10 %). We can simply conclude from these two studies that no effect can be demonstrated in the years like 1998 unpropicious to mortalities.	
Tipo: 	Text	
Idioma: 	Francês	
Identificador: 	http://archimer.ifremer.fr/doc/00105/21665/19243.pdf	
Relação: 	http://archimer.ifremer.fr/doc/00105/21665/	
Formato: 	application/pdf	
Fonte: 	1999 Ifremer