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Habitat Environment and Feeding Habitat of Iksookimia koreensis and Cobitis lutheri (Pisces: Cobitidae) in the Mangyeong River, Korea  

Ko, Myeong-Hun (Faculty of Biological Science and Institute for Biodiversity, College of Natural Science, Chonbuk National University)
Park, Jong-Yeong (Faculty of Biological Science and Institute for Biodiversity, College of Natural Science, Chonbuk National University)
Kim, Su-Hwan (Faculty of Biological Science and Institute for Biodiversity, College of Natural Science, Chonbuk National University)
Publication Information
Korean Journal of Ichthyology / v.21, no.4, 2009 , pp. 253-261 More about this Journal
Abstract
Habitat environment and feeding habitat of Iksookimia koreensis and Cobitis lutheri were investigated in the Mangyeong River, Jeollabuk-do, Korea from 2005 to 2006. They together inhabit the upper and middle stream, but they showed differences in their microhabitat. I. koreensis inhabited the stony zones of relatively rapid waters with a water depth of 30~60 cm, whereas C. lutheri lived in the sandy zones of relatively slow waters with a depth of 30~100 cm. The two species were active during daylight hours from March to October but hibernated in the winter season. During hibernation I. koreensis still lived in the gravel and stone and C. lutheri burrowed in the sand. I. koreensis ingested mainly chironomid and other aquatic insects, whereas C. lutheri fed mainly on Chironomidae, Copepoda and Branchiopoda. The feeding rate of both species was highest in April and September, but they did not feed in the winter.
Keywords
Iksookimia koreensis; Cobitis lutheri; population ecology; feeding habits;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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