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Stock assessment of elkhorn sculpin (Alcichthys alcicornis) along the Uljin area in the East Sea of Korea
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  • Stock assessment of elkhorn sculpin (Alcichthys alcicornis) along the Uljin area in the East Sea of Korea
  • Stock assessment of elkhorn sculpin (Alcichthys alcicornis) along the Uljin area in the East Sea of Korea
저자명
Lee. Soo-Jeong,Zhang. Chang-Ik,Choi. Young-Min,Lee. Dong-Woo,Lee. Jae-Bong
간행물명
한국어업기술학회지
권/호정보
2013년|49권 4호|pp.432-439 (8 pages)
발행정보
한국어업기술학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

This study was performed to assess the current stock condition of elkhorn sculpin along the Uljin area in the East Sea of Korea. To assess the state of the stock, yield-per-recruit (YPR) and spawning biomass-perrecruit (SBPR) analyses were performed. Estimates of $F_{max}$ and $F_{0.1}$ were 2.10/year and 0.48/year, respectively, and those of $F_{35%}$ and $F_{40%}$ were 0.66/year and 0.54/year, respectively. Current fishing mortality was estimated at 0.63/year and the current age at first capture was 2.41years. $F_{40%}$ was set as the target reference point of the stock. SBPR at $F_{40%}$ and current SBPR were estimated to be 41.85g and 37.77g, respectively. Estimated FOTY which is the fishing mortality for the overfished threshold yield was 0.49/year. The ratio of SBPR/$SBPR_{MSY}$ was calculated as 0.90 and that of $F/F_{OTY}$ was 1.05. The ratio of $t_c/t_{c;opt}$ was calculated as 1.15 and that of $F/F_{OTY}$ was 1.17. Therefore, the current stock condition of elkhorn sculpin along the Uljin area of Korea has not been overfished, however, it indicates that a light overfishing is going on this stock.