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A gender-disaggregated assessment of the South African hake resource, fitting directly to age-length keys: a new reference case

Authors: Rademeyer, Rebecca A; Butterworth, Doug S;

A gender-disaggregated assessment of the South African hake resource, fitting directly to age-length keys: a new reference case

Abstract

The assessment methodology for the hake resource is refined to take account of recommendations made by the Panel at the December 2008 International Stock Assessment Workshop to move to a gender-disaggregated model, and to fit directly to age data and estimate growth curve parameters directly in the likelihood maximisation process. This approach proves to remove the conflict between fits to catch-at-age and catch-at-length distributions evident in earlier assessments. The current M. paradoxus female spawning biomass is estimated to be at 76% of its MSY level, while the corresponding M. capensis estimate well above this level.

Country
South Africa
Related Organizations
Keywords

South African hake, age-length keys, gender-disaggregated assessment

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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