Korean Journal of Ichthyology (한국어류학회지)

The Ichthyological Society of Korea (한국어류학회)
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Review on the Fish Fauna of the Imha-Dam Reservoir in the Nakdonggang River System, Korea

낙동강 수계 임하호의 어류상 고찰

  • Received : 2018.06.22
  • Accepted : 2018.06.28
  • Published : 2018.06.30
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Abstract

Diversity of fish fauna and species list collected from the Imha-Dam Reservoir of the Nakdonggang River system were reviewed based on the published materials from 1992 to 2016. As a result of the present study, 46 freshwater fish species/subspecies belonging to 36 genera, 11 families, 4 orders were reported in the Imha-Dam Reservoir. Of them, Cyprinidae occupied 58.7% (27 species), Cobitidae 10.9% (5 spp.), Gobiidae 6.5% (3 spp.), and Siluridae, Centropomidae, Centrarchidae were 4.3% (2 spp.) in the number of species, respectively. The dominant species in the number of individuals was Erythroculter erythropterus (40.1%, 9,333 inds.), and the subdominant species was Opsariichthys uncirostris amurensis (9.8%, 2,281 inds.). Among 46 species/subspecies, 17 species (37.0%) were identified as endemic species to Korea. Three species were endangered fish species by the Ministry of Environment of Korea, five translocated species, and three exotic species were reported.

낙동강 수계의 임하호에 서식하는 담수어류의 다양성과 종 목록을 고찰하고자 1992년부터 2016년까지의 문헌을 분석하였다. 그 결과, 임하호 내에서 출현한 전체 어류는 총 4목 11과 36속 46종 23,269개체가 보고되었다. 잉어과가 27종(58.7%), 미꾸리과 5종 (10.9%), 망둑어과 3종 (6.5%), 메기과, 꺽지과, 검정우럭과가 각각 2종(4.3%)씩 보고되었다. 우점종은 9,333개체 (40.1%)가 출현한 강준치였고, 아우점종은 2,281개체(9.8%)가 출현한 끄리로 나타났다. 우리나라 고유종은 17종으로 출현어종 46종의 37.0%를 차지하였고, 환경부 지정 멸종위기종은 3종, 국내이입종은 5종, 외래종은 3종이 보고되었다.

Keywords

References

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