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DAO 33:119-122 (1998)
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Abstract
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Pathogenic effects of Vibrio alginolyticus on larvae and postlarvae of the red abalone Haliotis rufescens
Casandra Anguiano-Beltrán1, Ricardo Searcy-Bernal1,*, M. Leonardo Lizárraga-Partida2
1Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Apartado Postal 453, Ensenada, B.C. 22860, México
2Centro de Investigación Científica y Educación Superior de Ensenada, Apartado Postal 2732,
Ensenada, B.C. 22860, México
*Addressee for correspondence. E-mail: casandra@faro.ens.uabc.mx
ABSTRACT: The pathogenicity of Vibrio alginolyticus on Haliotis rufescens veliger larvae and 4 d old postlarvae was tested in small-scale static bioassays with different bacterial concentrations (102 to 106 cells
ml-1). Larval and postlarval survival were evaluated at 24 and 48 h. Results suggest that V. alginolyticus can cause massive mortality in larvae of H. rufescens within 24 h at concentrations above 105 cell
ml-1, while a concentration of 106 cell ml-1 is required to produce the same effect in abalone postlarvae. The potential application of these results to hatchery conditions is discussed.
KEY WORDS: Abalone · Pathology · Vibrio alginolyticus
Published in DAO Vol.
33, No. 2
(1998) on June 19
ISSN: 0177-5103.
Copyright © Inter-Research, Oldendorf/Luhe, 1998
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