Further updated West Coast rock lobster operating models for super-areas A1+2 and A8+

Johnston, Susan J; Butterworth, Doug S

Further updated West Coast rock lobster operating models for super-areas A1+2 and A8+

Working Paper

2011

Publisher

University of Cape Town

Department

Marine Resource Assessment and Management Group

Faculty

Faculty of Science

Abstract

At the previous SWG meeting (23 March 2011) results of updated operating models for all five super-areas of the west coast rock lobster resource were presented (Johnston and Butterworth 2011). The SWG requested that two of the operating models be re-run following discussions at the meeting. These re-runs are: Area 1+2: Re-run the model with the constraint that all estimable recruitment parameters must be 1.0, when expressed as a proportion of the pristine recruitment. Area 8+: Re-run the model with updated values for both the trapboat and hoopnet CPUE series. Glazer and Butterworth (2011a,b) report updated CPUE values. These values have been updated to include Area 8 sub-areas and to take into account Areas 10-14 as recommended.