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Prey Preference of Liobagrus somjinensis in Yo Stream, Somjin River, Namwon-si, Korea  

Kim, Su Hwan (National Institute of Ecology)
Park, Jong Young (Faculty of Biological Science and Institute for Biodiversity, Chonbuk National University)
Publication Information
Korean Journal of Ichthyology / v.26, no.2, 2014 , pp. 118-124 More about this Journal
Abstract
As part of researching the feeding habit of Liobagrus somjinensis, the study of its stomach contents and benthic aquatic macroinvertebrates fauna at the waters the fish was collected were carried out monthly from January to December 2010 in Yo stream, Somjin River Sikjeong-dong, Namwon-si, Jeollabuk-do, Korea. In the survey of the stomach contents, the prey organisms are all aquatic insects consisting of 5 orders, 14 classes and 16 species. They fed mainly on Trichoptera and Ephemeroptera including dominant insects such as Hydropsyche kozhantschikovi (79.1%), Chironomidae spp. (48.7%), Baetiella tuberculata (34.2%) at the occurrence rate. Based the result, L. somjinensis appeared to be an aquatic insect feeder that consumes only benthic aquatic insects. The feeding rate of L. somjinensis was the highest in November, whereas it was the lowest in December to next February when they did not feed in the winter season. A survey of the benthic aquatic macroinvertebrates fauna was accompanied for prey preference at the waters. They have 7 orders, 20 classes and 27 species, and among them, two species, Hydropsyche kozhantschikovi (39.0%) and Epeorus pellucidus (18.1%), were aquatic dominant insects. Among 7 orders interestingly, Odonata and Megaloptera, known as having a larger size than other aquatic insects, were not found at the stomach contents. As a result, Liobagrus somjinensis most prefer Hydropsyche kozhantscikovi which is the most dominant species with relatively a smaller size at the waters the study was performed.
Keywords
Liobagrus somjinensis; stomach contents; Hydropsyche kozhantscikovi;
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Times Cited By KSCI : 8  (Citation Analysis)
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1 김형수.양 현.홍양기. 2012. 만경강 수계 고산천에 서식하는 퉁사리 Liobagrus obesus의 자연산란장 특성. 한국어류학회지, 24: 183-190.
2 박인석.설동원.강언종.김치홍. 2006. 퉁가리과(Amblycipitidae) 어류 계측형질 특징. 한국어류학회지, 18: 209-215.
3 서원일.한경호.윤성민.김춘철.황선영.이성훈.이충렬.손영목.김익수. 2006. 퉁사리 Liobagrus obesus의 초기생활사. 발생과 생식, 10: 41-45.
4 손영목. 1987. 한국산 퉁가리과 어류의 계통분류학적 연구. 중앙대학교 박사학위논문, 81pp.
5 손영목.변화근. 2004. 금강에 서식하는 퉁사리 Liobagrus obesus의 식성. 한국어류학회지, 16: 336-340
6 손영목.이지현. 1989. 한국산 퉁가리속 어류의 핵형분석. 한국어류학회지, (1,2): 64-72.
7 손영목.주영일. 1988. 한국산 퉁가리속(Genus Liobagrus) 어류의 생태. 한국육수학회지, 21: 234-251.
8 원두희.권순직.전영철. 2005. 한국의 수서곤충. (주) 생태계조사단, 415pp.
9 윤희남.김기동.전용락.이중효.박영준. 2013. 오대산 일대에 서식하는 열목어와 산천어의 식성. 한국어류학회지, 25(2):90-105.
10 윤희남.김종명.배양섭.채병수. 2007. 남한강 지류에 서식하는 퉁가리 Liobagrus andersoni의 식성. 한국어류학회지, 19(3):236-245.
11 최낙현.서원일.김춘철.박충국.허승준.윤성민.한경호.이원교. 2008. 한국 특산종 자가사리 Liobagrus mediadiposalis의 산란행동 및 초기생활사. 한국수산과학회지, 41(6): 478-484.
12 Mori, T. 1936. Description on new genera and three new species of Siluroidae from Choseon. Zoological Magazine, 48: 671-675, pl. 24. (in Japanese)
13 Park, J.Y. and S.H. Kim. 2010. Liobagrus somjinensis, a new species of torrent catfish (Siluriformes: Amblycipitidae) from Korea. Ichthyological Exploration of Freshwaters, 21: 345-352.
14 Pinkas, L., M.S. Oliphant and I.L.K. Iverson. 1971. Food habits of albacore, bluefin tuna, and bonito in California waters. Calif. Dep. Fish Game, Fish Bull., 152: 1-105.
15 Regan, C.T. 1908. On freshwater fishes from Corea. Proceedings of the Zoological Society of London, 1908, pp. 59-63.
16 Son, Y.M., I.S. Kim and I.Y. Choo. 1987. A new species of torrent catfish, Liobagrus obesus from Korea. Korean Journal of Limnology, 20: 21-29.