University of Cape Town
FISHERIES_2020_OCT_SWG-DEM_19.pdf (1.88 MB)

Updated 2020 horse mackerel assessments and projections

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posted on 2021-01-29, 10:33 authored by Susan HollowaySusan Holloway, Doug ButterworthDoug Butterworth
This document reports updated 2020 horse mackerel assessments, along with constant midwater catch projections for the base case model and seven model sensitivities. These models include exploring alternative values for natural mortality at age, and fixing 2015 and 2016 recruitment residuals to zero, and changing the values assumed for the catchability for Autumn survey and for the stock-recruitment steepness.



Department of Mathematics and Applied Mathematics, University of Cape Town