Browsing by Subject "Catch-at-Length"
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- ItemRestrictedFurther updates of an assessment of the Namibian hake resource, including both catch-at-age and catch-at-length information(2004) Rademeyer, Rebecca A; Butterworth, Doug SAn earlier version of this paper was presented in February as an assessment of the Namibian hake resource based on both catch-at-age and catch-at-length information. Age-length keys for the Namibian hake are available for 1993, 1999 and 2000 and for those years, the catch-at-age data are used as input. For the years where no age-length keys are available, catch-at-length data have been used to fit the model. This follows the recommendation made by the January 2004 BENEFIT-NRF-BCLME Stock Assessment Workshop. More recent additions to the paper include examination of the effects of taking account of the January 2004 survey result, and of CPUE data from seven vessels that fished both before and after Namibian independence in 1990.