Two epizootic Perkinsus spp. events in commercial oyster farms at Santa Catarina, Brazil

Abstract Perkinsus spp. have been detected in various bivalve species from north‐east Brazil. Santa Catarina is a South Brasil state with the highest national oyster production. Considering the pathogenicity of some Perkinsus spp., a study was carried out to survey perkinsosis in two oyster species...

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Bibliographic Details
Published in:Journal of Fish Diseases
Main Authors: Luz Cunha, Ana C., Pontinha, Vitor de A., de Castro, Maria Alcina M., Sühnel, Simone, Medeiros, Sthefanie C., Moura da Luz, Ângela M., Harakava, Ricardo, Tachibana, Leonardo, Mello, Danielle F., Danielli, Naissa M., Dafre, Alcir L., Magalhães, Aimê R. M., P. Mouriño, José Luiz
Other Authors: Conselho Nacional de Desenvolvimento Científico e Tecnológico
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 2019
Subjects:
Barra
Pacific
Crassostrea gigas
Pacific oyster
Online Access:http://dx.doi.org/10.1111/jfd.12958
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfd.12958
https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.12958
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Summary:Abstract Perkinsus spp. have been detected in various bivalve species from north‐east Brazil. Santa Catarina is a South Brasil state with the highest national oyster production. Considering the pathogenicity of some Perkinsus spp., a study was carried out to survey perkinsosis in two oyster species cultured in this State, the mangrove oyster Crassostrea gasar and the Pacific oyster Crassostrea gigas . Sampling involved eight sites along the state coast, and oyster sampling was collected during the period between January 2013 and December 2014. For the detection of Perkinsus , Ray's fluid thioglycollate medium (RFTM) and histology were used, and for the identification of the species, PCR and DNA sequencing were used. Perkinsus spp. was found by RFTM in C. gigas and C. gasar from São Francisco do Sul. This pathology was also detected in C. gasar from Balneário Barra do Sul both, by RFTM and histology. Perkinsus marinus was identified in C. gigas and C. gasar from São Francisco do Sul and Perkinsus beihaiensis in C. gasar from Balneário Barra do Sul. This is the first report of P. marinus in C. gigas from South America. Results of this preliminary study suggest that both oyster species tolerate the species of Perkinsus identified, without suffering heavy lesions.

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