OPEN ACCESS plSSN : 0374-8111 | elSSN : 2287-8815
OPEN ACCESS plSSN : 0374-8111elSSN : 2287-8815
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kfas, vol. 55, no. 6, pp.946-953, December, 2022 DOI. https://doi.org/10.5657/KFAS.2022.0946

A Management Strategy Evaluation of the Current TAC (Total Allowable
Catch) Regulation in Korea: The Case of Chub Mackerel Scomber japonicus
Fisheries

김도율·서영일1·현상윤*
부경대학교 수산과학대 자원생물학과, 1국립수산과학원 연근해자원과

  • ABSTRACT

    Using the management strategy evaluation methods and data on the Korea chub mackerel Scomber japonicus where the state-space logistic production model is used as the operation and the estimation model respectivley, we examined the effects of both Dorn’s rule, α and the buffer value for ABC (allowable biological catch), which are used by the Korea fishery managers for decision rules. We set scenarios that have different pairs of buffer and α values, which include those currently used in the management in Korea. Under each sceanario, we projected the fish population biomass until year 2050, during which ABC is determined in each year with the decision rule. We used three kinds of performance measures: (i) whether the biomass in 2050 is overfished; (ii) the average of annual yields over the simulation period; and (iii) the variability of annual yields over the period. We found that the current practice (buffer=0.9, and α = 0.05) resulted in the best performance in terms of avoiding the “overfished” status. However, the current practice failed to reach the maximum average of the annual yields and led to larger uncertainty in the annual yields.

  • Keyword

    Allowable biological catch, Buffer, Dorn’s rule, Korea chub mackerel, MSE