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http://dx.doi.org/10.7847/jfp.2022.35.2.247

Isolation of atypical Aeromonas salmonicida in cultured starry flounder (Platichthys stellatus)  

Wi-Sik, Kim (Department of Aqualife Medicine, Chonnam National University)
Min-Su, Kwon (Department of Aqualife Medicine, Chonnam National University)
Hwi-Jin, Kim (Department of Aqualife Medicine, Chonnam National University)
Myung-Joo, Oh (Department of Aqualife Medicine, Chonnam National University)
Kyoung-Hui, Kong (Department of Aqualife Medicine, Chonnam National University)
Publication Information
Journal of fish pathology / v.35, no.2, 2022 , pp. 247-250 More about this Journal
Abstract
About 6.7% mortality was reported in a starry flounder (Platichthys stellatus) aquaculture farm in 2022. Most of the diseased fish showed a loss of pectoral fin, hemorrhages on muscle and gills, pale gills, enlarged spleen, and nodules on kidney. Parasites, fungi or viruses (viral hemorrhagic septicemia virus and hirame novirhabdovirus) were not detected from diseased fish. However, numerous bacteria were isolated from liver, spleen and kidney. Nucleotide sequences of the A-protein-encoding virulence array protein gene (vapA) of the bacteria showed 99.93% identity with Aeromonas salmonicida subsp. masoucida. This study is the first report of isolation of atypical A. salmonicida in cultured starry flounder in Korea.
Keywords
Atypical; Aeromonas salmonicida; infection; starry flounder; Platichthys stellatus;
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