An updated assessment of the Agulhas sole resource, Austroglossus pectoralis.

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dc.contributor.authorGlazer, Jean
dc.contributor.authorButterworth, Doug S
dc.date.accessioned2019-11-19T09:32:59Z
dc.date.available2019-11-19T09:32:59Z
dc.date.issued2018-10
dc.description.abstractButterworth and Glazer (2014) reported results from the application of a simple form of the dynamic Schaefer model to account for a large drop in sole CPUE over the period 2009-2013. The two hypotheses considered were (i) the drop in CPUE was a consequence of decreasing catchability and (ii) the drop in CPUE was a consequence of decreasing productivity. The model was applied again in 2016 (Butterworth et al., 2016) and 2017 (Glazer et al., 2017). Results from the assessment conducted in 2017 yielded more positive future projections for the most pessimistic scenario (a decrease in productivity, where effort remains at its current reduced level into the future). Recent biomasses were estimated to be higher and projected to decrease more slowly if the 2013 effort level was maintained. Given that data are now available for 2017, the assessment model has once again been updated, with results reported here. These point to yet a more positive resource situation.en_US
dc.identifier.apacitationGlazer, J., & Butterworth, J. (2018). <i>An updated assessment of the Agulhas sole resource, Austroglossus pectoralis</i> ,Faculty of Science ,Department of Mathematics and Applied Mathematics. Retrieved from http://hdl.handle.net/11427/30611en_ZA
dc.identifier.chicagocitationGlazer, Jean, and Jean Butterworth <i>An updated assessment of the Agulhas sole resource, Austroglossus pectoralis.</i> ,Faculty of Science ,Department of Mathematics and Applied Mathematics, 2018. http://hdl.handle.net/11427/30611en_ZA
dc.identifier.citationGlazer, J., Butterworth, J. 2018-10. An updated assessment of the Agulhas sole resource, Austroglossus pectoralis.en_ZA
dc.identifier.ris TY - Report AU - Glazer, Jean AU - Butterworth, Jean AB - Butterworth and Glazer (2014) reported results from the application of a simple form of the dynamic Schaefer model to account for a large drop in sole CPUE over the period 2009-2013. The two hypotheses considered were (i) the drop in CPUE was a consequence of decreasing catchability and (ii) the drop in CPUE was a consequence of decreasing productivity. The model was applied again in 2016 (Butterworth et al., 2016) and 2017 (Glazer et al., 2017). Results from the assessment conducted in 2017 yielded more positive future projections for the most pessimistic scenario (a decrease in productivity, where effort remains at its current reduced level into the future). Recent biomasses were estimated to be higher and projected to decrease more slowly if the 2013 effort level was maintained. Given that data are now available for 2017, the assessment model has once again been updated, with results reported here. These point to yet a more positive resource situation. DA - 2018-10 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PY - 2018 T1 - An updated assessment of the Agulhas sole resource, Austroglossus pectoralis TI - An updated assessment of the Agulhas sole resource, Austroglossus pectoralis UR - http://hdl.handle.net/11427/30611 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/30611
dc.identifier.vancouvercitationGlazer J, Butterworth J. An updated assessment of the Agulhas sole resource, Austroglossus pectoralis. 2018 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/30611en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Mathematics and Applied Mathematicsen_US
dc.publisher.facultyFaculty of Scienceen_US
dc.titleAn updated assessment of the Agulhas sole resource, Austroglossus pectoralis.en_US
dc.typeReporten_US
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