Korean Journal of Ichthyology (한국어류학회지)

The Ichthyological Society of Korea (한국어류학회)
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First Record of the Japanese Fluvial Sculpin, Cottus pollux (Scorpaeniformes: Cottidae) from Korea

한국산 둑중개과(쏨뱅이목) 첫기록종, Cottus pollux

  • Bong Han Yun (Department of Biology, Soonchunhyang University) ;
  • Yong Hwi Kim (Department of Biology, Soonchunhyang University) ;
  • In-Chul Bang (Department of Biology, Soonchunhyang University)
  • 윤봉한 (순천향대학교 생명과학과) ;
  • 김용휘 (순천향대학교 생명과학과) ;
  • 방인철 (순천향대학교 생명과학과)
  • Received : 2022.08.25
  • Accepted : 2022.10.21
  • Published : 2022.12.31
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Abstract

Two sculpin specimens (79.3~100.8 mm standard length) were collected from the upper reach of Deokdongcheon Stream, a tributary of the Hyeongsangang River, in Korea. They were identified as Cottus pollux by characteristics such as the absence of palatine teeth, 12~13 unbranched pectoral fin rays, pelvic fins without obvious bands or spots, and the absence of a blackish band on the head or anterior part of the body. A phylogenetic analysis based on the nuclear ITS1 gene and mitochondrial cytb gene indicated that the specimens formed a clade with Japanese C. pollux, supporting the morphological species identification. We propose a new Korean name for the species: "Min-mu-nui-dug-jung-gae"

대한민국 경상북도 경주시 암곡동 형산강 지류인 덕동천 상류에서 둑중개과 (Cottidae) 둑중개속(Cottus)에 속하는 어류 2개체 (표준체장 79.3~100.8 mm)를 채집하였다. 이들은 구개골에 이빨이 없는 점, 가슴지느러미의 기조가 분지되지 않고 기조수가 12~13개인 점, 배지느러미에 뚜렷한 반점이나 무늬가 없는 점, 그리고 머리 또는 몸 앞쪽에 검은색 띠가 없는 점 등에서 C. pollux로 동정되었다. 또한, 핵 DNA의 ITS1 유전자 영역과 미토콘드리아 DNA의 cytb 유전자 영역을 이용한 분자계통학적 분석 결과, 본 표본은 일본산 C. pollux와 동일한 유전적 clade를 형성하여 상기 형태학적 특징에 의한 종 동정 결과를 뒷받침하였다. 신한국명으로는 대한민국에 분포하는 둑중개 및 한둑중개와 달리 배지느러미에 반점이나 무늬가 없는 형태적 특징에 따라 '민무늬둑중개'를 제안한다.

Keywords

Acknowledgement

We would like to express our sincere gratitude to all the staff members of Korea National Park Service and Mu Sung Sung who helped us collect the samples studied. This study was carried out with the support of Soonchunhyang University Research Fund.

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