Stochastic projections for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity

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dc.contributor.authorBrandão, Anabela
dc.contributor.authorButterworth, Doug S
dc.date.accessioned2019-06-20T10:11:19Z
dc.date.available2019-06-20T10:11:19Z
dc.date.issued2018-10
dc.description.abstractFor stochastic future recruitment and for annual catch levels of 0, 200, 400, 575 and 675 tonnes, the median of the spawning biomass estimates for the New Base case model drops initially, but returns to its current level within a decade. However, for variants of this model that attempt to improve the fit to the trotline CPUE or which adjust the projected recruitments to reflect a possible regime shift, only annual catches in the range of 200 to 400 tonnes maintain the spawning biomass above the current level at the end of a 20 year period. This suggests that consideration should perhaps be given to recommending some decrease in the present annual TAC of 575 tonnes.en_US
dc.identifier.apacitationBrandão, A., & Butterworth, D. (2018). <i>Stochastic projections for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity</i> ,Faculty of Science ,Department of Mathematics and Applied Mathematics. Retrieved from http://hdl.handle.net/11427/30231en_ZA
dc.identifier.chicagocitationBrandão, Anabela, and Doug Butterworth <i>Stochastic projections for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity.</i> ,Faculty of Science ,Department of Mathematics and Applied Mathematics, 2018. http://hdl.handle.net/11427/30231en_ZA
dc.identifier.citationBrandão, A., Butterworth, D. 2018-10. Stochastic projections for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity.en_ZA
dc.identifier.ris TY - Report AU - Brandão, Anabela AU - Butterworth, Doug AB - For stochastic future recruitment and for annual catch levels of 0, 200, 400, 575 and 675 tonnes, the median of the spawning biomass estimates for the New Base case model drops initially, but returns to its current level within a decade. However, for variants of this model that attempt to improve the fit to the trotline CPUE or which adjust the projected recruitments to reflect a possible regime shift, only annual catches in the range of 200 to 400 tonnes maintain the spawning biomass above the current level at the end of a 20 year period. This suggests that consideration should perhaps be given to recommending some decrease in the present annual TAC of 575 tonnes. DA - 2018-10 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PY - 2018 T1 - Stochastic projections for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity TI - Stochastic projections for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity UR - http://hdl.handle.net/11427/30231 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/30231
dc.identifier.vancouvercitationBrandão A, Butterworth D. Stochastic projections for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity. 2018 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/30231en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Mathematics and Applied Mathematicsen_US
dc.publisher.facultyFaculty of Scienceen_US
dc.titleStochastic projections for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinityen_US
dc.typeReporten_US
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