This study analyzed the selectivity of Octopus minor using the extended SELECT model in netpots. The data used for the analysis were collected from ten sea trials conducted between 2009 and 2010 using cylindrical octopus traps with six mesh sizes (16, 18, 20, 22, 24, and 26 mm). The selectivity analysis was performed using two models: the p-fixed split model and the p-estimated split model, depending on whether the encounter probability (split parameter) was estimated. The model fit was evaluated by comparing the model deviation and AIC values. The results showed that octopus catch decreased as mesh size increased, with a general tendency for larger individuals to be caught. The 16 mm trap, which had the smallest mesh size, accounted for 25.9% of the total octopus catch by number of individuals while the 22 mm trap, a commercial mesh size, accounted for 14.1%. The CPUE based on weight was highest for the 18 mm trap. The selectivity analysis results indicated that the p-estimated split model provided the best fit, and the 50% selection length for the 22 mm trap was 64.57 mm. In this study, reliability of various models was considered in the mesh selectivity analysis, and the findings are intended to serve as basic data for improving relevant regulations and deriving scientific research results.

서 론
자료 및 방법
    시험방법
    망목선택성 추정법
결과 및 고찰
    해상시험결과
    망목선택성 곡선 추정
결 론
사 사
References

• 김성훈(국립부경대학교 해양생산시스템관리학부 교수) | Seonghun KIM (Professor, Division of Marine Production System Management, Pukyong National University, Busan, 48513, Republic of Korea)
• 백세나(국립부경대학교 대학원 해양생산관리학부 수산물리학전공 학생) | Sena BAEK (Student, Department of Marine Production Management Major of Fisheries Physics, Pukyong National University, 45 Yongso-ro, Nam-Gu, Busan 48513, Republic of Korea)
• 김병관(국립수산과학원 연구협력과 연구원) | Pyungkwan KIM (Researcher, Department of Cooperation Division, National Institute of Fisheries Science, Busan 46083, Korea) Corresponding author