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상업적 어업과 유어낚시 어획량을 활용한 한국 연근해 갈치(Trichiurus lepturus)의 자원평가 KCI 등재

Stock assessment of largehead hairtail (Trichiurus lepturus) in Korean waters using commercial and recreational catch data

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  • URLhttps://db.koreascholar.com/Article/Detail/449050
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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

Largehead hairtail (Trichiurus lepturus) is a commercially important warm-water species widely distributed in Korean coastal and offshore waters as well as adjacent waters. Recently, recreational fishing catches of this species have increased substantially, raising concerns about their contribution to total fishing pressure and the potential bias in stock assessment based solely on commercial catches. In this study, recreational fishing catches of largehead hairtail from 1970 to 2023 were reconstructed and combined with commercial catches to estimate total removals. Stock assessments were conducted using the CMSY (Catch-MSY) method under two scenarios: one using only commercial catches and the other incorporating recreational catches into the total catches. The results indicate that the current stock status of largehead hairtail is not overfished (B/BMSY > 1) and not subject to overfishing (F/FMSY < 1). However, the probability of overfishing increased compared to the scenario using only commercial catches when including recreational catches. This suggests that stock status may be overestimated if recreational removals are ignored. These findings highlight the importance of incorporating recreational fishing into stock assessments and indicate that systematic management of recreational fisheries should be implemented alongside commercial fisheries to ensure the sustainable use of the stock.

목차
서 론
재료 및 방법
    모델
    자원평가 시나리오
    어획량 자료
    회복탄력성(Resilience) 정보
    상대 자원량 (B/k)에 대한 가정
    모델 진단
결과 및 고찰
    어획량
    자원상태
    모델 진단
결 론
References
부 록
저자
  • 김민주(국립부경대학교 대학원 블루푸드융합협동과정 학생) | Min-Ju KIM (Graduate student, Interdisciplinary Program of Blue Food, Pukyong National University, Busan 48513, Korea)
  • 이성일(국립부경대학교 해양생산시스템관리학부 교수) | Sung-Il LEE (Professor, Division of Marine Production System Management, Pukyong National University, Busan 48513, Korea) Corresponding author