This study investigated the species composition and bycatch status of fishes by fyke net between June and November 2020 in Asanho lake and Chungjuho lake. During the survey period, the catches in Asanho lake were identified as 2,931 individuals of 16 species from a total of six families and in Chungjuho lake were identified as 1,645 individuals of 14 species from a total of eight families. The dominant species in Asanho lake was Erythroculter erythropterus which accounted for 59.6% of the the total number of individuals and 40.5% of the total biomass caught. The dominant species in Chungjuho lake was Lepomis macrochirus which accounted for 48.2% of the the total number of individuals and Erythroculter erythropterus which accounted for 60.2% of the total biomass caught. The bycatch rates of non-commercial species in Asanho lake and Chungjuho lake were 77.0% and 82.6%, respectively. As a result of analyzing the frequency distribution of the total length of Carassius auratus and Siniperca scherzeri, which were the dominant species among commercial species, the bycatch rate of small individuals was 87.1%, and 42.7%, respectively.

서 론
재료 및 방법
결과 및 고찰
    수온
    아산호 어류의 종 조성 및 혼획률
    충주호 어류의 종 조성 및 혼획률
    아산호와 충주호의 군집구조 비교
    소형개체의 혼획률
결 론
사 사

• 허민아(한국수산해양공학연구소 선임연구원) | Min Ah HEO (Senior researcher, Korea Institute of Fisheries and Ocean Engineering, Busan 48508, Korea)
• 안희춘(한국수산해양공학연구소 연구소장) | Heui Chen AN (Director of Research, Korea Institute of Fisheries and Ocean Engineering, Busan 48508, Korea)
• 이완옥(한국수산해양공학연구소 책임연구원) | Wan Ok LEE (Principal Researcher, Korea Institute of Fisheries and Ocean Engineering, Busan 48508, Korea)
• 편용범(한국수산해양공학연구소 부소장) | Yong Beam PYEON (Deputy director of Research, Korea Institute of Fisheries and Ocean Engineering, Busan 48508, Korea)
• 김성훈(부경대학교 해양생산시스템관리학부 교수) | Seong Hun KIM (Professor, Department of Marine Production System Management, Pukyong National University, Busan 48513, Korea) Corresponding author