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http://dx.doi.org/10.5657/KFAS.2012.0493

Simulation-based Yield-per-recruit Analysis of Pacific cod Gadus macrocephalus in Southeastern Korean Coastal Waters  

Cha, Hyung Kee (Subtropical Fisheries Research Center, Southwest Sea Fisheries Research Institute, National Fisheries Research and Development Institute)
Jung, Sukgeun (School of Marine Biomedical Sciences, Jeju National University)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.45, no.5, 2012 , pp. 493-498 More about this Journal
Abstract
We derived biological reference points for Pacific cod Gadus macrocephalus in southeastern Korean waters by applying a yield-per-recruit analysis based on a daily simulation that adopted size-dependent fecundity, growth, and natural mortality functions. This showed that the yield per recruit of Pacific cod can be maximized at an instantaneous rate of fishing mortality (F)=0.37 $yr^{-1}$ under the current regulations, where the minimum catch size ($L_c$)=30 cm in total length (TL). The maximum economic yield was estimated to be attained at $L_c$=35-45 cm TL, if F>1 $yr^{-1}$ but at $L_c$=35-40 cm TL, if F<1 $yr^{-1}$. Despite great uncertainty in the stock assessment, to develop fisheries management plans for the sustainable exploitation of Pacific cod in southeastern Korean waters, it is necessary to estimate F using capture-recapture or other expedient methods.
Keywords
Pacific cod; Gadus macrocephalus; Yield per recruit analysis; Stock assessment;
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Times Cited By KSCI : 5  (Citation Analysis)
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