The Effect of Time-correlated Uncertainty on the Management of Yellowfin Tuna Stocks
نویسندگان
چکیده
Yellowfin assessments depend on accurate data on catch and on good indices of abundance that can be used to fit production models. Current catch statistics compiled by ICCAT seem accurate, but historic catches may have been at least partially under-reported. In this paper we investigate the effect that different historic patterns of under-reporting have in the assessment. We do this by fitting biomass dynamic models to simulated data where underreporting is random and linearly decreasing.
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