Epizootiological study of rickettsiosis of the Saint-Jacques scallop Pecten maximus

Type Article
Date 1991-04
Language English
Author(s) Le Gall G1, Mialhe Eric1, Chagot D1, Grizel Henri1
Affiliation(s) 1 : IFREMER, PATHOL & GENET INVERTEBRES MARINS LAB, BP 133, F-17390 LA TREMBLADE, FRANCE.
Source Diseases Of Aquatic Organisms (0177-5103) (Inter-research), 1991-04 , Vol. 10 , N. 2 , P. 139-145
DOI 10.3354/dao010139
WOS© Times Cited 30
Abstract Rickettsia-like microorganisms were described in gill endothelial cells during mass mortalities of Saint-Jacques scallops Pecten maximus in Saint-Brieuc Bay (North Brittany, France) during winter 1985-86. In order to evaluate the epizootiological significance of rickettsiosis of scallops, an analytical and descriptive epizootiological study was undertaken. The study included the geographic distribution, incidence and severity of the disease for several northern European and French scallop populations. Since the center of French scallop production is in Saint-Brieuc Bay, epizootiological investigations were concentrated in this area. Dissemination appeared to be by horizontal transmission. The pathogenic significance of the rickettsia-like organism in mortalities of P. maximus is discussed.
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