Comparative susceptibility
of veliger larvae of four bivalve mollusks to a Vibrio alginolyticus
strain
A. Luna-González, A.N. Maeda-Martínez, J.C. Sainz,
F. Ascencio-Valle-2002
Diseases of Aquatic Organisms, 49(3): 221-226
Abstract:
The susceptibility of 7 d old veliger larvae of the
scallops Argopecten ventricosus and Nodipecten subnodosus, the
penshell Atrina maura, and the Pacific oyster Crassostrea gigas
to a pathogenic strain of Vibrio alginolyticus was investigated by
challenging the larvae with different bacterial concentrations in a
semi-static assay. The results indicate that the larvae of the 2 scallop
species are more susceptible to the V. alginolyticus strain than
those of the oyster and the penshell. Signs of the disease were similar to
bacillary necrosis described in previous work. Interspecies differences in
susceptibility to pathogens are discussed.
(Centro de Investigaciones Biológicas del Noroeste
S.C. (CIBNOR), PO Box 128, La Paz, Baja California Sur 23000, Mexico, e-mail
of A.N. Maeda-Martínez: amaeda@cibnor.mx)