Occurrence of exotic eels in natural waters of South Korea |
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| Authors: | Yang-Ki Hong Jung-Eun Kim Jeong-Ho Lee Mi-Young Song Hee-Won Park |
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| Institution: | 1. Inland Fisheries Research Institute, National Institute of Fisheries Science, Gapyeong, Republic of Korea;2. Inland Aquaculture Research Center, National Institute of Fisheries Science, Changwon, Republic of Korea |
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| Abstract: | We surveyed the proportion of anguillid eel species inhabiting South Korea natural waters. From September 2014 to August 2015, 429 eels were collected in various habitats for identification using morphological features and DNA-based molecular methods. We found 424 Japanese eels (Anguilla japonica, 98.8%), two European eels (A. anguilla, 0.5%), one American eel (A. rostrata, 0.23%), one tropical eel (A. marmorata, 0.23%), and one short-finned eel (A. bicolor pacifica, 0.23%). Three (A. anguilla, A. rostrata, and A. bicolor pacifica) are exotic species to the natural waters of South Korea; this study is the first record of their distribution in this region. Specifically, A. anguilla was found in the Lake Soyang and Cheongpyeong, while A. rostrata was found only in the Lake Cheongpyeong, and A. bicolor pacifica was found in the Geum River estuary. |
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| Keywords: | Identification Anguilla anguilla A rostrata A bicolor pacifica exotic species |
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