ASAP Review and Discussion

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Presentation transcript:

ASAP Review and Discussion 2016 MS Spotted Seatrout SA ASAP Review and Discussion

Data input Length-at-age Sex Ratio Weight-at-length Age-at-maturity Natural mortality rate Catch-at-age Commercial Catch Indices of abundance

Estimated parameters 2 Fishery Selectivity parameters – Logistic selectivity A50 and Slope 1 stock-recruitment parameters (unexploited SSB and steepness). 2 initial catchability coefficients 1 for the fishery-independent index and 1 for the fishery-dependent index). 44 full fishing mortality rates 22 recruitment deviations (1993-2014) 4 index (gillnet) parameters

Sensitivity Using a fixed natural mortality rate of 0.2 y-1. Including only the fishery-independent IOA Including only the fishery-dependent IOA Use standardized fishery-independent IOA Using a fixed steepness parameter of 0.95 Using a fixed steepness parameter of 0.90 Using a fixed steepness parameter of 0.80 Using a fixed steepness parameter of 0.70 Using a fixed steepness parameter of 0.60