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

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
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A study on the risk scoring and risk index for the ecosystem-based fisheries assessment

생태계 기반 어업평가의 위험도 추정에 관한 개선연구

  • Park, Hee Won (Fisheries Resources Management Division, National Fisheries Research and Development Institute) ;
  • Zhang, Chang Ik (Division of Marine Production System Management, Pukyong National University) ;
  • Kwon, You Jung (Fisheries Resources Management Division, National Fisheries Research and Development Institute) ;
  • Seo, Young Il (Fisheries Resources Management Division, National Fisheries Research and Development Institute) ;
  • Oh, Taeg-Yun (Fisheries Resources Management Division, National Fisheries Research and Development Institute)
  • 박희원 (국립수산과학원 자원관리과) ;
  • 장창익 (부경대학교 해양생산시스템관리학부) ;
  • 권유정 (국립수산과학원 자원관리과) ;
  • 서영일 (국립수산과학원 자원관리과) ;
  • 오택윤 (국립수산과학원 자원관리과)
  • Received : 2013.10.31
  • Accepted : 2013.11.13
  • Published : 2013.11.30
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Abstract

This study identified problems of the existing ecosystem-based fisheries assessment approach, and suggested new methods for scoring risk and for the estimation of fishery risk index. First, risk scores of zero to two for target and limit reference points for each indicator were replaced by those of zero to three, and the risk scores were calculated from new formulae which were developed in this study. Second, a new method for estimating fishery risk index (FRI) was developed in this study, considering the level of indicators. New method was applied to the Korean large purse seine fishery, large pair trawl fishery and drag net fishery. More precise and detailed risk scores were obtained from the new method, which can explain the risks by the wider range of both risk levels for 'better than target' and 'beyond limit'. The new method for estimating FRI could avoid the basic problem related with duplicated computations of fishery-level indicators, which improved the estimated FRI to be more accurate. Also, a method for estimating variance of FRI using the bootstrap was proposed in this study.

Keywords

References

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Cited by

  1. Ecosystem-based resource assessment on coastal fisheries of Uljin in East Sea of Korea vol.50, pp.4, 2014, https://doi.org/10.3796/KSFT.2014.50.4.567