Acquisition of susceptibility to Vibrio penaeicida in Penaeus stylirostris postlarvae and juveniles

Type Article
Date 1998-12
Language English
Author(s) Goarant Cyrille1, Regnier France1, Brizard Raphael1, Marteau Anne-Laure1
Affiliation(s) 1 : IFREMER, Nouvelle Caledonie, Lab Rech Aquacole, Stn Aquaculture St Vincent, Noumea 98845, New Caledonia.
Source Aquaculture (0044-8486) (Elsevier Science Bv), 1998-12 , Vol. 169 , N. 3-4 , P. 291-296
DOI 10.1016/S0044-8486(98)00380-9
WOS© Times Cited 17
Keyword(s) Penaeus stylirostris, Vibrio sp., diseases and their control crustaceans

Vibriosis is a major disease problem in shrimp aquaculture, affecting all developmental stages, from larvae in hatchery tanks to juveniles and broodstock in growout ponds. However, bacterial strains responsible for vibriosis in the successive stages are usually considered to be different, and virulence specificity has been reported both at the species and at the stage levels. The so-called « Syndrome 93 » is a seasonal juvenile vibriosis caused by Vibrio penaeicida which affects Penaeus stylirostris in growout ponds and broodstock tanks in New Caledonia. This pathology does not cause any mortality in hatchery or nursery phases. An experimental infection design using balneation of postlarvae and early juveniles in V. penaeicida suspensions was used to evaluate the developmental stage at which shrimp become sensitive to this vibriosis. We demonstrated that the acquisition of susceptibility to this pathogen is very sudden and correlated with the acquisition of the definitive rostral formula, and from this draw conclusions regarding virulence mechanisms of V. penaeicida in P. stylirostris.

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