Bonamia-like parasite found in the Suminoe oyster Crassostrea rivularis reared in France

Type Article
Date 1998-11
Language English
Author(s) Cochennec NathalieORCID1, Renault Tristan1, Boudry PierreORCID1, Chollet Bruno1, Gerard Andre1
Affiliation(s) 1 : IFREMER, Lab Gentet Aquaculture & Pathol, F-17390 La Tremblade, France.
Source Diseases Of Aquatic Organisms (0177-5103) (Inter-research), 1998-11 , Vol. 34 , N. 3 , P. 193-197
DOI 10.3354/dao034193
WOS© Times Cited 24
Keyword(s) Crassostrea rivularis, Suminoe oyster, bonamiosis, Bonamia-like parasite
Abstract

Considering the economic importance of the Pacific oyster Crassostrea gigas to the French shellfish industry, the appearance of major diseases in this species could cause dramatic decreases in production. Suminoe oysters, of the non-indigenous species Crassostrea rivularis (Gould), were introduced into France to test their ability to adapt to local conditions. These oysters were imported after careful examination, and were maintained in laboratory quarantine. Some mortalities occurred 7 mo after importation. Histological and electron microscope examinations of 9 dead specimens revealed a parasite presumed to be a Bonamia-Like protozoan. This is the first report concerning a parasite of the genus Bonamia in a species belonging to the genus Crassostrea. Thus, C. rivularis is not considered to be a suitable substitute for C, gigas in France.

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