DAO 98:201-207 (2012)  -  DOI: https://doi.org/10.3354/dao02439

Crassostrea gigas oysters as a shrimp farm bioindicator of white spot syndrome virus

C. Vazquez-Boucard1,*, C. Escobedo-Fregoso1, Ma. de J. Duran-Avelar2, L. Mercier1, R. Llera-Herrera1, C. Escobedo-Bonilla3, N. Vibanco-Perez2

1Biomedicine, Biochemistry and Molecular Laboratory, Centro de Investigaciones Biológicas del Noroeste, La Paz 23090, Baja California Sur, Mexico
2Universidad Autónoma de Nayarit, Tepic 63155, Nayarit, Mexico
3Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional, IPN, Guasave 81101, Sinaloa, Mexico

ABSTRACT: This study explored whether Crassostrea gigas oysters can be used as a bioindicator of white spot syndrome virus (WSSV) in shrimp farm water canals. Bioassays showed that C. gigas can accumulate WSSV in their gills and digestive glands but do not become infected, either by exposure to seawater containing WSSV or by cohabitation with infected shrimp. The use of a WSSV nested PCR to screen oysters placed in water canals at the entry of a shrimp farm allowed WSSV to be detected 16 d prior to the disease occurring. The finding that C. gigas can concentrate small amounts of WSSV present in seawater without being harmed makes it an ideal sentinel species at shrimp farms.


KEY WORDS: WSSV · Disease management · Bivalve · Sentinel species


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Cite this article as: Vazquez-Boucard C, Escobedo-Fregoso C, Duran-Avelar MdJ, Mercier L, Llera-Herrera R, Escobedo-Bonilla C, Vibanco-Perez N (2012) Crassostrea gigas oysters as a shrimp farm bioindicator of white spot syndrome virus. Dis Aquat Org 98:201-207. https://doi.org/10.3354/dao02439

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