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Feeding Ecology of the Endangered Korean Endemic Miho Spine Loach, Cobitis choii (Pisces: Cobitidae) in Geumgang River, Korea  

Ko, Myeong-Hun (Division of EcoScience, Ewha Womans University)
Bang, In-Chul (Department of Life Sciences and Biotechnology, Soonchunhyang University)
Publication Information
Korean Journal of Ichthyology / v.30, no.2, 2018 , pp. 92-99 More about this Journal
Abstract
Feeding ecology of endangered Korean endemic miho spine loach, Cobitis choii, was investigated in Jicheon Stream, Geumgang River, Korea to provide ecological characteristics and baseline data for its restoration. C. choii is active during daylight hours above sand from March to October when the water temperature exceeded $13^{\circ}C$, but tended hibernate in the stream bottoms (sand) in the winter months (November~February) when the water temperature was lower than $13^{\circ}C$. They fed (index of relative importance, IRI) mainly Diptera (69.9%), Copepoda (23.2%), Arcellidae (2.3%), Branchiopoda (2.0%) and Ploima (2.0%). And their small juvenile (age 0+) fed mainly small size, Ploima and Branchiopoda, however, they ate mainly large size, Chilonomidae, while growing to adult fish (age 2+~3+).
Keywords
Cobitis choii; endangered fish; feeding ecology; activity period;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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