Data/hora: 03/06/2024 17:39:22

Provedor de dados: | 5
País: | France
Título: | Mise au point d'un outil de caractérisation de l'état physiologique des cheptels d'huîtres. Etude expérimentale sur des familles génétiques de l'huître creuse Crassostrea gigas
Autores: | De Ambroggi, Céline.
Data: | 2001
Ano: | 2001
Palavras-chave: | Mortalité; Crassostrea gigas; Familles gééntiques; Métabolisme; Respiration; Mortality; Crassostrea gigas; Genetic family; Metabolism; Respiration.
Resumo: | This study is in keeping with the comprehension of summer mortalities that affects Crassostrea gigas Pacific cupped oysters' spa!. The aim is to characterize genetic families in a physiologic way, and to compare these families qualities with the noticed mortalities. The employed approach consists, on the one hand, in characterising Iivestocks qualities with instantaneous measurings of respiration and biometry. They respectively allow to estimate basic metabolism and to calculate state index. On the other hand, it consists in measuring differently degrees of resistance by the observation of respiration and mortality after thermal stresses. This study allowed to show that the environment and the stresses only act as indications of a pre-existent wealilless, inherited from the parents. In a thermal stress state, the energetic demand of some families significantly increases, whereas it stays at the same level for others, displaying phenotypic differences of parental origin. This characterisation tool permitted to identify the genetic families in physiological  groups, and to observe the regrouping of a only male's descendants. These observations express the genetic transmission of physiologie performances. Moreover, this tool seems to permit the physiological characterization of the high mOliality families, but doesn't allow to identify the low mortality families.
Tipo: | Text
Idioma: | Francês

Identificador:

http://archimer.ifremer.fr/doc/00412/52321/53090.pdf

http://archimer.ifremer.fr/doc/00412/52321/

Formato: | application/pdf

Fonte:

2001 Ifremer, ESITPA

info:eu-repo/semantics/openAccess

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