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Neoparamoeba sp. Infection on Gills of Olive Flounder, Paralichthys olivaceus in Korea  

Kim, Hyoung-Jun (Department of Aquatic Life Medicine, Pukyong National University)
Cho, Jae-Bum (Department of Aquatic Life Medicine, Pukyong National University)
Lee, Mu-Kun (Department of Aquatic Life Medicine, Pukyong National University)
Huh, Min-Do (Department of Aquatic Life Medicine, Pukyong National University)
Kim, Ki-Hong (Department of Aquatic Life Medicine, Pukyong National University)
Publication Information
Journal of fish pathology / v.18, no.2, 2005 , pp. 125-131 More about this Journal
Abstract
Amoebic gill disease of flounder, Paralichthys olivaceus was diagnosed at commerical culture facility in South Korea. The amoeba was identified as a species of the genus Neoparamoeba based on the morpholgical characteristics of trophozoites. Transmisson electron microscopy revealed the presence of a symbiotic organism, parasome in the cytoplasm and dense glycocalyx on the surface of the trophozoites. They lacked the boat-shaped microscales on the surface and contained numerous vacuoles and channels, mitochondria in the cytoplasm. Colonization of amoebae on gill tissue elicited extensive fusion and hyperplasia of gill lamella.
Keywords
Neoparamoeba; Amoebic gill disease; Olive flounder;
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