한국어류학회지 (Korean Journal of Ichthyology)

  • 제30권3호
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  • Pages.155-160
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  • 2018
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  • 1225-8598(pISSN)
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  • 2288-3371(eISSN)
한국어류학회 (The Ichthyological Society of Korea)
권호 표지

멸종위기어류 한둑중개 Cottus hangiongensis(Pisces: Cottidae)의 분포양상 및 멸종위협 평가

Distribution Aspect and Extinction Threat Evaluation of the Endangered Species, Cottus hangiongensis (Pisces: Cottidae) in Korea

  • 고명훈 (이화여자대학교 에코과학부) ;
  • 한미숙 (이화여자대학교 에코과학부) ;
  • 권선만 (국립생물자원관)
  • 투고 : 2018.08.16
  • 심사 : 2018.09.15
  • 발행 : 2018.09.30
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초록

우리나라 멸종위기어류 한둑중개 Cottus hangiongensis의 분포양상 및 멸종위협 등급을 평가하기 위해 2011년부터 2017년까지 분포조사를 실시하였다. 한둑중개의 분포 결과를 1954~1985년, 1981~2003년, 2004~2012년, 2011~2017년으로 나누어 비교한 결과, 분포하천 수는 각각 30개, 24개, 10개, 19개 하천으로 나타나 점차적으로 감소하는 경향을 보였다. 본 조사(2011~2017)에서 새롭게 확인된 하천은 아야진천과 척산천 2개였으며, 과거에 출현하였으나 본 조사에서 확인되지 않은 하천은 15개였다. 한둑중개의 서식지는 공통적으로 하천 하류부의 물이 맑고 유속이 빠르며 하상은 돌과 큰돌이 있는 여울부였다. IUCN 적색목록 기준지침서에 따라 멸종위협 등급을 평가하면, 한둑중개 개체수는 1981~2003년에 비해 보의 축조와 하천공사, 서식지의 질적 하락 등의 이유로 30% 이상 감소한 것으로 추정되어 취약 (VU, A2ac)으로 평가하였다.

The distribution aspect and extinction threat evaluation of the endangered species, Cottus hangiongensis were investigated from 2011 to 2017 in Korea for this study. The distribution reports of C. hangiongensis were divided into 1954~1985, 1981~2003, 2004~2012, and 2011~2017. The number of habited streams decreased gradually to 30, 24, 10, and 19 streams, respectively. In this study (2011~2017), C. hangiongensis was newly found in two streams (Ayajincheon and Chuksancheon), but 15 streams that appeared in the past are not in this study. The main habitat of C. hangiongensis was the downstream riffle of clean water with fast velocity and cobble-boulder bottoms. Given this evidence as noted for more than a 30% reduction in population after 2003, due to construction wear, river work and the qualitative decline of the habitat, C. hangiongensis is now considered to be Vulnerable (VU A2ac) based on the IUCN Red List categories and criteria.

키워드

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