2018 updated south coast rock lobster assessment results

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dc.contributor.authorJohnston, Susan
dc.contributor.authorButterworth, Doug S
dc.date.accessioned2020-03-02T12:43:06Z
dc.date.available2020-03-02T12:43:06Z
dc.date.issued2019
dc.description.abstractThe 2017 assessment of the resource for South Coast rock lobster is updated given the two further years of catch-at-length data and one further year of CPUE data now available. Recruitment is estimated to have decreased over the last two seasons for which this is now estimable (2007 and 2008). The spawning biomass trajectory decreases slightly over recent years. Current spawning biomass is estimated to be 29% of K. The Reference Case (RC) MSY estimate is 358 MT at a Bsp/K of 0.29. Fmsy is estimated to be 0.29, though MSY-related estimates are heavily dependent on assumptions made about the stock-recruitment relationship. The RC model estimates that the resource is currently at Bmsy.en_US
dc.identifier.apacitationJohnston, S., & Butterworth, D. (2019). <i>2018 updated south coast rock lobster assessment results</i> ,Faculty of Science ,Department of Mathematics and Applied Mathematics. Retrieved from http://hdl.handle.net/11427/31445en_ZA
dc.identifier.chicagocitationJohnston, Susan, and Doug Butterworth <i>2018 updated south coast rock lobster assessment results.</i> ,Faculty of Science ,Department of Mathematics and Applied Mathematics, 2019. http://hdl.handle.net/11427/31445en_ZA
dc.identifier.citationJohnston, S. & Butterworth, D. 2019. <i>2018 updated south coast rock lobster assessment results</i>. ,Faculty of Science ,Department of Mathematics and Applied Mathematics. http://hdl.handle.net/11427/31445 .en_ZA
dc.identifier.ris TY - Report AU - Johnston, Susan AU - Butterworth, Doug AB - The 2017 assessment of the resource for South Coast rock lobster is updated given the two further years of catch-at-length data and one further year of CPUE data now available. Recruitment is estimated to have decreased over the last two seasons for which this is now estimable (2007 and 2008). The spawning biomass trajectory decreases slightly over recent years. Current spawning biomass is estimated to be 29% of K. The Reference Case (RC) MSY estimate is 358 MT at a Bsp/K of 0.29. Fmsy is estimated to be 0.29, though MSY-related estimates are heavily dependent on assumptions made about the stock-recruitment relationship. The RC model estimates that the resource is currently at Bmsy. DA - 2019 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PY - 2019 T1 - 2018 updated south coast rock lobster assessment results TI - 2018 updated south coast rock lobster assessment results UR - http://hdl.handle.net/11427/31445 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/31445
dc.identifier.vancouvercitationJohnston S, Butterworth D. 2018 updated south coast rock lobster assessment results. 2019 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/31445en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Mathematics and Applied Mathematicsen_US
dc.publisher.facultyFaculty of Scienceen_US
dc.title2018 updated south coast rock lobster assessment resultsen_US
dc.typeReporten_US
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