수산해양교육연구 (Journal of Fisheries and Marine Sciences Education)

  • 제18권1호
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  • Pages.19-30
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  • 2006
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  • 1229-8999(pISSN)
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  • 2288-2049(eISSN)
한국수산해양교육학회 (The Korean Society for Fisheries and Marine Sciences Education)
권호 표지

우리나라 멸치자원량추정을 위한 잉여생산모델과 최대엔트로피모델의 비교분석

A Comparative Analysis of Surplus Production Models and a Maximum Entropy Model for Estimating the Anchovy's Stock in Korea

  • 투고 : 2006.03.18
  • 심사 : 2006.03.31
  • 발행 : 2006.04.30
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초록

For fishery stock assessment and optimum sustainable yield of anchovy in Korea, surplus production(SP) models and a maximum entropy(ME) model are employed in this paper. For determining appropriate models, five traditional SP models-Schaefer model, Schnute model, Walters and Hilborn model, Fox model, and Clarke, Yoshimoto and Pooley (CYP) model- are tested for effort and catch data of anchovy that occupies 7% in the total fisheries landings of Korea. Only CYP model of five SP models fits statistically significant at the 10% level. Estimated intrinsic growth rates are similar in both CYP and ME models, while environmental carrying capacity of the ME model is quite greater than that of the CYP model. In addition, the estimated maximum sustainable yield(MSY), 213,287 tons in the ME model is slightly higher than that of CYP model (198,364 tons). Biomass for MSY in the ME model, however, is calculated 651,000 tons which is considerably greater than that of the CYP model (322,881 tons). It is meaningful in that two models are compared for noting some implications about any significant difference of stock assessment and their potential strength and weakness.

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참고문헌

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