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어군탐지기를 활용한 청평호 어업 구간의 어류 분포 연구
Fish Distribution Research Using Fishfinder at Fishery Area in the Cheongpyeong Reservoir 원문보기

생태와 환경 = Korean journal of ecology and environment, v.54 no.4, 2021년, pp.384 - 389  

백승호 (주식회사 에코리서치) ,  박상현 (주식회사 에코리서치) ,  송미영 (국립수산과학원 중앙내수면연구소) ,  김정희 (주식회사 에코리서치)

초록
AI-Helper 아이콘AI-Helper

본 연구는 2020년 10월 23일에 경기도 가평군 설악면에 위치한 청평호에서 수행되었으며, 어군탐지기를 이용해 획득한 자료를 기반으로 어류의 수평 및 수직 분포 패턴을 분석하였다. 어군탐지 조사가 수행된 구간의 총 수면적은 782,853 m2였으며, 수심(water depth, WD)이 10~12 m인 구간이 전체 수면적의 31.7%로 가장 넓게 분포하는 것으로 나타났다. 다양한 WD 구간별로 어류의 개체 밀도 산출 결과, 4~6 m 구간에서 0.98 개체/100 m2로 가장 높게 나타나, 수면적 대비 가장 많은 어류가 분포하는 것으로 확인되었다. Heat map 분석 결과 청평호 구간에서는 가평대교의 우안측에서 어류의 밀도가 가장 높게 나타났으며, 이러한 수평 분포 특성에서 특별한 경향성은 확인할 수 없었다. 어류의 수직분포 분석 결과, 어류가 관측된 수심(Fish depth, FD)이 6 m 이하인 경우가 전체 관측 대비 86.6%로 나타났다. 수심 대비 어류의 관측 수심(Relative height, RH) 분석 결과, 수심이 깊어질수록 어류가 상대적으로 표층에 분포하는 경향성을 확인할 수 있었다. 이와 관련해서는 수체의 수심별 수온 차이 등 다양한 원인이 있을 것으로 예상되며 추가적인 연구가 필요하다.

Abstract ▼ AI-Helper 아이콘AI-Helper

This study was conducted on October 23, 2020 at the Cheongpyeong Reservoir located in Seorakmyeon, Gapyeong-gun, Gyeonggi-do, and analyzed the horizontal and vertical distribution patterns of fish based on data obtained using fishfinder. The total surface area of fishfinder survey conducted was 782,...

주제어

#acoustic   #echo-sounder   #fish density   #inland fishery   #sonar  

참고문헌 (38)

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