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

  • 제53권3호
  • /
  • Pages.219-227
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  • 2017
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  • 2671-9940(pISSN)
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  • 2671-9924(eISSN)
한국수산해양기술학회 (The Korean Society of Fisheries and Ocean Technology)
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Estimation of tuna longline hook depth for improved performance in Fiji

  • BAINVES, Viliame (Ministry of Fisheries, Central Division) ;
  • LEE, Chun-Woo (Division of Marine Production Management, Pukyong National University) ;
  • PARK, Subong (Department of Fisheries Physics, Pukyong National University)
  • 투고 : 2017.06.23
  • 심사 : 2017.08.07
  • 발행 : 2017.08.31
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초록

In pelagic longline, deploying the gear such that the depth of the hook is the same as that of the target fish is important to improve the fishing performance and selectivity. In this study, the depth of the tuna longline hook was estimated using the mass-spring model, catenary curve method, and secretariat of the pacific commission Pythagorean method in order to improve the performance of the longline gear in Fiji. The former two methods were estimated to be relatively accurate, and the latter showed a large error. Further, the mass-spring model accounted for the influence of tidal current in the ocean, which was found to be appropriate for use in field trials.

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참고문헌

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