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- W2187198399 abstract "CPUE data derived from the Kawakawa CPUE standardization was used in Surplus Production model assessment. Non-informative priors were used on r, and K, assuming the population was at K when the catch time-series begins in 1950. Catch data was used from 1950 and key reference points, namely SMSY & MSY were estimated using the SIR algorithm. Since there is limited information on the CPUE dataset, the range of estimates on reference points is large. Results obtained though similar to the posterior based stock reduction method only based on catch series presented by Zhou et. al. (IOTC 2013), differ in their interpretation towards the latter half of the time-series. The stock status appears to be healthy and not overfished based on the timeseries used, though the model has convergence issues, and has a high degree of confounding in r and K estimates. Informative priors help the model converge, though the model is influenced to large extent by these priors. Due to the lack of contrast in the index of abundance data over the period, the model has difficulty estimating SMSY, though can still be useful for evaluating stock status and optimal yield targets. However, these should be used cautiously, and to a large extent the relative status of the stock is still highly uncertain." @default.
- W2187198399 created "2016-06-24" @default.
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- W2187198399 date "2013-01-01" @default.
- W2187198399 modified "2023-09-23" @default.
- W2187198399 title "Indian Ocean Kawakawa Assessment based on the Maldives Pole and Line CPUE Index" @default.
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