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Change of relative fishing power index from technological development in the offshore large powered purse seine fishery

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  • URLhttps://db.koreascholar.com/Article/Detail/327885
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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

Lots of fishery stocks are overexploited and the overcapacity exists in Korean fishing fleets. One of the reasons is technological development, which increases the efficiency of the vessels continuously. The analysis was conducted to identify the change of fishing power index to develop the vessel and gear technology that may have improved the fishing efficiency of the offshore large powered purse seine fishery from 1960s to 2010s. Gross tonnage and horse power per fishing vessel was increased annually. Fishing gear material was changed to the knotless webbing to settle faster. Fishing equipments was modernized and supply rate was also increased. Therefore the relative fishing power index in the offshore large powered purse seine fishery increased from 0.4 in 1970 to 1.0 in 1980, to 1.5 in 2000 and to 1.6 in 2010, but the rate of increase slowed down gradually. The results are expected to contribute to reasonable fishery stock management.

저자
  • 서영일 | Young-Il SEO
  • 황강석 | Kang-Seok HWANG
  • 차형기 | Hyung-Kee CHA
  • 오택윤(국립수산과학원 연근해자원과) | Taeg-Yun OH (Fisheries Resources Management Division, National Institute of Fisheries Science, Busan 46083, Korea)
  • 조현수(국립수산과학원 연근해자원과) | Hyun-Su JO (Fisheries Resources Management Division, National Institute of Fisheries Science, Busan 46083, Korea)
  • 김병엽(국립수산과학원 연근해자원과) | Byung-Yeob KIM (Fisheries Resources Management Division, National Institute of Fisheries Science, Busan 46083, Korea)
  • 류경진(국립수산과학원 연근해자원과) | Kyong-Jin RYU (Fisheries Resources Management Division, National Institute of Fisheries Science, Busan 46083, Korea)
  • 이유원(국립수산과학원 연근해자원과) | Yoo-Won LEE (Fisheries Resources Management Division, National Institute of Fisheries Science, Busan 46083, Korea) Corresponding author