Amoebic gill infection in coho salmon Oncorhynchus kisutch farmed in Korea
| Autor: | Wi-Sik Kim, Kyoung-Hui Kong, Jong-Oh Kim, Myung-Joo Oh |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Gills
0301 basic medicine Gill endocrine system animal structures food.ingredient Tubulina Zoology Aquaculture macromolecular substances Aquatic Science Biology 18S ribosomal RNA Amoeba (genus) Fish Diseases 03 medical and health sciences food Phylogenetics Republic of Korea Animals Phylogeny Ecology Evolution Behavior and Systematics Amoebic gill disease Ecology business.industry Amebiasis 04 agricultural and veterinary sciences Oncorhynchus kisutch biology.organism_classification 030104 developmental biology 040102 fisheries 0401 agriculture forestry and fisheries Oncorhynchus business Bacteria |
| Zdroj: | Diseases of Aquatic Organisms. 121:75-78 |
| ISSN: | 1616-1580 0177-5103 |
| DOI: | 10.3354/dao03037 |
| Popis: | About 70% mortality occurred in cultured coho salmon Oncorhynchus kisutch at a marine farm in the South Sea of Korea in 2014. Diseased fish showed greyish or pale patches on the gills, with no internal signs of disease. No bacteria or viruses were isolated from diseased fish, but numerous amoebae were found on the gills. Histopathological examinations revealed extensive hyperplastic epithelium and lamellar fusion in the gills. Numerous amoebae were seen between gill filaments. The amoebae had a 630 bp partial 18S rRNA gene fragment specific to Neoparamoeba perurans. Phylogenetic analysis based on partial 18S rRNA gene nucleotide sequences revealed that this Korean amoeba belonged to the N. perurans group. This is the first report of N. perurans infection in Korea. |
| Databáze: | OpenAIRE |
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