Back-tracking biomass estimates to 1932 using results from a "Replacement Yield" model fit to catch and survey data for the South Coast kingklip resource off South Africa for estimates of current status relative to MSY-related reference points
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2014
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University of Cape Town
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Abstract
Back-tracking biomass values to 1932 for each posterior replicate of a Bayesian “Replacement Yield” model applied to the total annual catches and the survey abundance estimates for the South African kingklip resource off the South coast by Brandão and Butterworth (2013) results in both a mean and median current (2012) depletion of about 40%. This suggests current status close to BMSY, which taken together with the recent increasing trend in survey abundance estimates suggests a current fishing mortality less than FMSY.
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Brandão, A., & Butterworth, D. S. (2014). Back-tracking biomass estimates to 1932 using results from a "Replacement Yield" model fit to catch and survey data for the South Coast kingklip resource off South Africa for estimates of current status relative to MSY-related reference points. MARAM: University of Cape Town.