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http://dx.doi.org/10.11626/KJEB.2014.32.4.382

The Infection of Heterosporis anguillarum in Cultured Shortfin Eel (Anguilla bicolor pacifica)  

Kim, Jin-Do (Pathology Division, Aquaculture Research Institute, National Fisheries Research & Development Institute)
Do, Jeong-Wan (Pathology Division, Aquaculture Research Institute, National Fisheries Research & Development Institute)
Choi, Hye-Sung (Pathology Division, Aquaculture Research Institute, National Fisheries Research & Development Institute)
Jo, Hyae-In (Pathology Division, Aquaculture Research Institute, National Fisheries Research & Development Institute)
Lee, Nam-Sil (New strategy Research Center, NFRDI)
Kim, Young-Dae (Korea Fisheries Resource Agency)
Publication Information
Korean Journal of Environmental Biology / v.32, no.4, 2014 , pp. 382-388 More about this Journal
Abstract
Shortfin eel (Anguilla bicolor pacifica) is a species of commercial importance and its production is greatly affected due to the infection by Heterosporis anguillarum. In this study, we evaluated the effect of H. anguillarum infection on the growth of Shortfin eel. A disease that trunk muscle of cultured shortfin eel, Anguilla bicolor pacifica, were irregular and resulted in death, breakout of the commercial eel culture farm. We observed that the trunk muscle of infected eels were irregular and represented white or yellowish externally. Histopathologically, a great numbers of large or small spores and sporophorocysts were also observed in degenerated muscle layer. The cloning of specific gene of H. anguillarum, encoding small subunit ribosomal RNA (SSU-rRNA) was amplified by the polymerase chain reaction(PCR) from the muscle lesion of diseased eel. The size of clone gene is well matched with the size of small subunit ribosomal RNA of H. anguillarum and thus confirming the infection by H. anguillarum.
Keywords
eel; H. anguillarum; histological change; small subunit ribosomal RNA(SSU-rRNA);
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