Further applications of statistical catch-at-age assessment methodology to the 2J3K-O Greenland halibut resource

 

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dc.contributor.author Butterworth, Doug S
dc.contributor.author Rademeyer, Rebecca A
dc.date.accessioned 2016-04-19T11:54:05Z
dc.date.available 2016-04-19T11:54:05Z
dc.date.issued 2009
dc.identifier.citation Butterworth, D. S., & Rademeyer, R. A. (2009). Further applications of statistical catch-at-age assessment methodology to the 2J3K-O Greenland halibut resource. MARAM: University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/18983
dc.description.abstract The initial applications of statistical catch-at-age analysis to commercial catch and survey information in Butterworth and Rademeyer (2009a) are updated to take temporal variability in survey selectivity-at-age into account, and an associated updated Baseline assessment B2 is developed. Sensitivity of the results of B2 to a wide range of alternative specifications is explored. Generally results are more positive than for the most recent XSA assessment. However the SCAA results are not entirely satisfactory because of a conflict evident between survey trends and the proportions-at-age data, which underlies the wide-ish range of results that can be obtained. The overall impression gained from these analyses is that the status of the 2J3K-O Greenland halibut resource is less robustly determined than might be inferred from past XSA assessments. en_ZA
dc.language eng en_ZA
dc.title Further applications of statistical catch-at-age assessment methodology to the 2J3K-O Greenland halibut resource en_ZA
dc.type Working Paper en_ZA
dc.date.updated 2016-04-19T11:49:49Z
uct.type.publication Research en_ZA
uct.type.resource Research paper en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Science en_ZA
dc.publisher.department Marine Resource Assessment and Management Group en_ZA
uct.type.filetype Text
uct.type.filetype Image


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