Korean Journal of Ichthyology (한국어류학회지)

The Ichthyological Society of Korea (한국어류학회)
권호 표지

Habitat Segregation and Prey Selectivity on Cohabitation Fishes, Phoxinus phoxinus and Rhynchocypris kumgangensis

연준모치, Phoxinus phoxinus와 금강모치, Rhynchocypris kumgangensis의 서식지 분리와 먹이 선택

백현민;송호복;심하식;김영건;권오길

  • Published : 20020000
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Abstract

The authors investigated habitat segregation and prey selectivity of two cohabitants, Phoxinus phoxinus and Rhynchocypris kumgangensis, in Dongdaecheon, Jeongsoen-gun, Kangwon-do, Korea, from April to October 2001. P. phoxinus dominated the upper reaches of the stream, whereas R. kumgangensis dominated the middle and lower reaches of the upprer stream. P. phoxinus inhabited zones of relatively slow water velocity in the bottom layer, but R. kumgangensis lived zones of relatively high water velocity in the middle and upper layers of the cohabitat. P. phoxinus ingested mainly Ephemeroptera, Trichophtera, Diptera in spring, and Diptera in summer and autumn. R. kumgangensis fed mainly on terrestrial insects in spring and summer, and Diptera in autumn.

Keywords

References

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