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제주도 서북 해역에서의 우점종 생물량 추정에 환경 유전자의 적용에 관한 시범 연구 KCI 등재

A pilot study on the application of environmental DNA to the estimation of the biomass of dominant species in the northwestern waters of Jeju Island

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수산해양기술연구 (Journal of the Korean Society of Fisheries and Ocean Technology)
한국수산해양기술학회(구 한국어업기술학회) (The Korean Society of Fisheriers and Ocean Technology)
초록

Using environmental DNA (eDNA) in the fisheries and oceanography fields, research on the diversity of biological species, the presence or absence of specific species and quantitative evaluation of species has considerably been performed. Up to date, no study on eDNA has been tried in the area of fisheries acoustics in Korea. In this study, the biomass of a dominant species in the northwestern waters of Jeju Island was examined using 1) the catch ratio of the species from trawl survey results and 2) the ranking ratio of the species from the eDNA results. The dominant species was Zoarces gillii, and its trawl catch ratio was 68.2% and its eDNA ratio was 81.3%. The Zoarces gillii biomass from the two methods was 7199.4 tons (trawl) and 8584.6 tons (eDNA), respectively. The mean and standard deviation of the acoustic backscattering strength values (120 kHz) from the entire survey area were 135.5 and 157.7 m 2 /nm 2 , respectively. The strongest echo signal occurred at latitude 34° and longitude 126°15’ (northwest of Jeju Island). High echo signals were observed in a specific oceanographic feature (salinity range of 32-33 psu and the water temperature range of 19-20℃). This study was a pilot study on evaluating quantitatively aquatic resources by applying the eDNA technique into acoustic-trawl survey method. Points to be considered for high-quality quantitative estimation using the eDNA to fisheries acosutics were discussed.

목차
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재료 및 방법
    현장조사
    데이터 처리
결과 및 고찰
결 론
References
저자
  • 강명희(경상국립대학교 해양경찰시스템학과/해양산업연구소) | Myounghee KANG (Department of Maritime Police and Production System/Institute of Marine Industry, Gyeongsang National University, Tongyeong 53064, Korea)
  • 박경동((주)수산자원생태연구소) | Kyeong-Dong PARK (Institute of Fisheries Resources Ecology, Busan 48498, Korea)
  • 민은비(제주대학교) | Eunbi MIN (Division of Fisheries Science, Chonnam National University, Yeosu 59626, Korea)
  • 이창헌(제주대학교) | Changheon LEE (Training Ship, Jeju National University, Jeju 63243, Korea)
  • 강태종(전남대학교 수산과학과) | Taejong KANG (Division of Fisheries Science, Chonnam National University, Yeosu 59626, Korea)
  • 오태건(한국수산자원공단 자원조성팀) | Taegeon OH (Resources Enhancement Division, Korea Fisheries Resources Agency, Busan 46041, Korea)
  • 임병권(한국수산자원공단 자원조성팀) | Byeonggwon LIM (Resources Enhancement Division, Korea Fisheries Resources Agency, Busan 46041, Korea)
  • 황두진(전남대학교 해양기술학부) | Doojin HWANG (School of Marine Technology, Chonnam National University, Yeosu 59626, Korea)
  • 김병엽(제주대학교 실습선) | Byung-Yeob KIM (Training Ship, Jeju National University, Jeju 63243, Korea) Corresponding author