Journal of the Korean Society of Fisheries and Ocean Technology (수산해양기술연구)

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
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Change of fishing power index by technological development in the offshore squid jigging fishery

근해오징어채낚기어업에서 어로기술발달에 따른 어획성능지수 변동

  • OH, Taeg-Yun (Dokdo Fisheries Research Center, National Institute of Fisheries Science) ;
  • SEO, Young-Il (Coastal Water Fisheries Resources Research Division, National Institute of Fisheries Science) ;
  • CHA, Hyung-Kee (Coastal Water Fisheries Resources Research Division, National Institute of Fisheries Science) ;
  • JO, Hyun-Su (Department of Marine Industry and Shipping Science and Technology (Marine Production System Major), Kunsan National University) ;
  • AN, Young-Su (Center of Training Ship Operation Management, College of Marine Science, Gyeongsang National University) ;
  • LEE, Yoo-Won (Training Ship, Pukyong National University)
  • 오택윤 (국립수산과학원 독도수산연구센터) ;
  • 서영일 (국립수산과학원 연근해자원과) ;
  • 차형기 (국립수산과학원 연근해자원과) ;
  • 조현수 (군산대학교 해양생산시스템전공) ;
  • 안영수 (경상대학교 실습선운영관리센터) ;
  • 이유원 (부경대학교 실습선)
  • Received : 2018.06.18
  • Accepted : 2018.08.13
  • Published : 2018.08.31
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Abstract

Squid is one of the important fisheries resources in Korea. Therefore, squid has been designated and managed as a target species of total allowable catch (TAC) since 2007, but the catch amount is gradually decreasing. The analysis was conducted to identify the change of relative fishing power index to develop the vessel and gear technology that may have improved the fishing efficiency of the offshore squid jigging fishery from 1960s to 2010s. Gross tonnage per fishing vessel increased with the increase in size until 1990, but then gradually decreased to 41.0 tons in 2000 and 37.1 tons in 2010. The illuminating power (energy consumption) by fishing lamps increased to 180 kW in 2005 and stabilized to 120 kW in 2015. Jigging machine started to be supplied to fishing vessels from the early 1970s, and fish finders began to be supplied in the early 1980s and gradually increased. Therefore, the relative fishing power index in the offshore squid jigging fishery increased from 1.0 in 1980 to 1.1 in 1990, to 3.5 in 2000 and to 2.5 in 2010, but the increment rate slowed down gradually. The results are expected to contribute to reasonable fisheries stock management.

Keywords

References

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