Essai de réimplantation de Crassostrea angulata en France. Résistance au chambrage et comportement des hybrides C. angulata - C. gigas

The inability to rear the oysters C. gigas and O. edulis in certain Brittany waters has prompted us to conduct breeding trials with C. angulata C. gigas and their hybrids. Results have revealed that all the strains tested were sensitive to Tributyl tin (TBT), showing atnormal shell thickness and the...

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Bibliographic Details
Main Authors: Bougrier, Serge, Raguenes, Gerard, Bachere, Evelyne, Tige, Gilbert, Grizel, Henri
Format: Conference Object
Language:French
Published: Counc. Meet. of the Int. Counc. for the Exploration of the Sea, (Copenhagen (Denmark)), (9 Oct 1986) 1986
Subjects:
TBT
Breeding trials
Hubrids
Crassostrea gigas
Crassostrea angulata
Chambrage
Croisement
Hybrides
Online Access:https://archimer.ifremer.fr/doc/1986/acte-3102.pdf
https://archimer.ifremer.fr/doc/00000/3102/
Description
Summary:The inability to rear the oysters C. gigas and O. edulis in certain Brittany waters has prompted us to conduct breeding trials with C. angulata C. gigas and their hybrids. Results have revealed that all the strains tested were sensitive to Tributyl tin (TBT), showing atnormal shell thickness and their growth was lower than C. gigas. In addition, C. angulata was still affected by the presence of the Iridovirus in France. L'impossibilité d'élever les huîtres C. gigas et O. edulis dans certaines rivières de Bretagne nous a conduit à réaliser des essais avec C. angulata et des hybrides obtenus de croisements entre cette espèce et C. gigas. Les résultats ont montré que toutes les souches testées sont sensibles au chambrage de à l'action du TBT et que leur croissance est inférieure à celle de C. gigas. Enfin l'Iridovirose décrite en France est toujours présente et affecte encore C. angulata.

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