Korean Journal of Ichthyology (한국어류학회지)

The Ichthyological Society of Korea (한국어류학회)
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A New Species of Cyprinid Fish, Zacco koreanus with Redescription of Z. temminckii (Cyprinidae) from Korea

한국산 피라미속 어류 1 신종 Zacco koreanus 기재와 갈겨니 Z. temminckii의 재기재

  • Kim, Ik-Soo (Faculty of Biological Sciences, Chonbuk National University) ;
  • Oh, Min-Ki (Faculty of Biological Sciences, Chonbuk National University) ;
  • Hosoya, Kazumi (Department of Fisheries, Faculty of Agriculture, Kinki University)
  • 김익수 (전북대학교 자연과학대학 생물학과) ;
  • 오민기 (전북대학교 자연과학대학 생물학과) ;
  • Received : 2004.12.04
  • Accepted : 2005.02.28
  • Published : 2005.03.31
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Abstract

A new chub, Zacco koreanus sp. nov., is described on the basis of 104 specimens from six localities in Korea. The new species is distinguished from other Zacco species by the following characteristics: 9~10 scales above lateral line to dorsal fin origin, yellowish anterolateral side of body, no hemicircular red blotch on the upper margin of the eyes, reddish anterior margin of pectoral fin, larger orbit diameter and narrow interorbital width. The new species is widely distributed in the most streams of Korea, except the Yeongsan R., while Zacco temminckii is restricted in the Dongjin R., Yeongsan R., Seomjin R., Tamjin R. and Nakdong R. in Korea. When the two species occurred sympatrically in the same stream, Z. koreanus sp. nov. prefered mostly rapid lotic environments while Z. temminckii inhabited lentic ones. The Korean Z. temminckii was redescribed herein. A key to the Zacco species of Korea and Japan is provided.

우리나라 영산강을 제외한 남부의 여러 하천에서 채집된 갈겨니로 알려진 표본 가운데 체측상부비늘 수가 9~10개이고, 체측 전반부가 노란색을 띠고, 동공상단에 붉은색 반점이 없으며, 가슴지느러미 앞쪽 가장자리는 붉은색을 띤 104개의 개체들은 전형적인 갈겨니 Zacco temminckii와 잘 구별되어, 신종 Zacco koreanus로 기재하고 새로운 국명을 "참갈겨니"로 지칭하여 갈겨니 Z. temminckii와 비교하였다. 갈겨니는 영산강, 동진강, 섬진강, 탐진강, 낙동강의 우리나라 남부에서만 분포하지만, 참갈겨니는 영산강을 제외한 대부분의 하천에 분포한다. 이 두 종이 혼서하는 수역에서는 갈겨니는 주로 정수역에 서식하지만 참갈겨니는 비교적 빠른 유수역을 선호하였다. 한국과 일본의 피라미속 어류의 종 검색표를 제시하였다.

Keywords

References

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