Fisheries and Aquatic Sciences

한국수산과학회 (The Korean Society of Fisheries and Aquatic Science)
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Infection of Enteromyxum leei in cultured starry flounder Platichthys stellatus

  • Sang Phil Shin (Department of Marine Life Science, Jeju National University) ;
  • Jehee Lee (Department of Marine Life Science, Jeju National University)
  • 투고 : 2023.01.10
  • 심사 : 2023.02.16
  • 발행 : 2023.03.31
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초록

Enteromyxum leei has been identified as the causative agent of emaciation disease in a wide range of marine fish hosts. In this study, we aimed to determine the effect of the parasitic infection of Enteromyxum species on starry flounder that were cultured in aquaculture farms of Jeju island in Korea. As the mortality of cultured olive flounder Paralichthys olivaceus because of E. leei infection increased, some fish farms on Jeju island attempted to culture the starry flounder Platichthys stellatus, as an alternative. Myxosporeans with a developmental stage similar to E. leei were found in the intestines of cultured starry flounders. The partial 18S rDNA of myxosporeans showed 100% similarity with E. leei. To reveal the effect of E. leei infection on starry flounder, the intensity of E. leei infection measured using quantitative polymerase chain reaction, and the condition factor (CF) of fish were measured and analyzed statistically. The results showed that high-intensity E. leei infection significantly decreased the CF of the starry flounder. However, the pathogenicity of E. leei to starry flounder is low, considering its mortality and clinical signs.

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과제정보

We appreciate Dr. Jin, Mr. Park and Ms. Lee of Jeju National University for their assistance including monitoring and dissection.

참고문헌

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