Projections under the selected Management Procedure for Greenland Halibut

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dc.contributor.authorRademeyer, Rebecca
dc.contributor.authorButterworth, Doug S
dc.date.accessioned2020-01-20T07:00:13Z
dc.date.available2020-01-20T07:00:13Z
dc.date.issued2018
dc.description.abstractFigures 1 to 5 plot the projected 95, 90 and 80% probability envelopes as well as the projected medians under the revised Management Procedure adopted in 2017 for Greenland Halibut for a series of quantities (annual catch, recruitment, and the five survey indices of abundance together with the composite index which combines the five) for the following SCAA-based Operating Models: - OM1 (the Baseline, using data including 2016 and the O3 set of surveys), - OM2 (larger recruitment variability with R=0.6), - OM4 (loRec – the recruitment of the first 8 years of the projections are at 50% of the level predicted by the stock-recruit function), - OM7 (110TAC – future catches are taken as 110% of the TAC) and - OM8 (noplus – zero selectivity for the plus group). The probability envelopes have been computed from a 9-point averaging approach (see Appendix below) from 500 replicates. The 9-point approach was selected as it offered a reasonable trade-off between preserving trend and eliminating “jaggedness” from Monte Carlo variation.en_US
dc.identifier.apacitationRademeyer, R., & Butterworth, D. (2018). <i>Projections under the selected Management Procedure for Greenland Halibut</i> ,Faculty of Science ,Department of Mathematics and Applied Mathematics. Retrieved from http://hdl.handle.net/11427/30768en_ZA
dc.identifier.chicagocitationRademeyer, Rebecca, and Doug Butterworth <i>Projections under the selected Management Procedure for Greenland Halibut.</i> ,Faculty of Science ,Department of Mathematics and Applied Mathematics, 2018. http://hdl.handle.net/11427/30768en_ZA
dc.identifier.citationRademeyer, R., Butterworth, D. 2018. Projections under the selected Management Procedure for Greenland Halibut.en_ZA
dc.identifier.risTY - Report AU - Rademeyer, Rebecca AU - Butterworth, Doug AB - Figures 1 to 5 plot the projected 95, 90 and 80% probability envelopes as well as the projected medians under the revised Management Procedure adopted in 2017 for Greenland Halibut for a series of quantities (annual catch, recruitment, and the five survey indices of abundance together with the composite index which combines the five) for the following SCAA-based Operating Models: - OM1 (the Baseline, using data including 2016 and the O3 set of surveys), - OM2 (larger recruitment variability with R=0.6), - OM4 (loRec – the recruitment of the first 8 years of the projections are at 50% of the level predicted by the stock-recruit function), - OM7 (110TAC – future catches are taken as 110% of the TAC) and - OM8 (noplus – zero selectivity for the plus group). The probability envelopes have been computed from a 9-point averaging approach (see Appendix below) from 500 replicates. The 9-point approach was selected as it offered a reasonable trade-off between preserving trend and eliminating “jaggedness” from Monte Carlo variation. DA - 2018 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PY - 2018 T1 - Projections under the selected Management Procedure for Greenland Halibut TI - Projections under the selected Management Procedure for Greenland Halibut UR - http://hdl.handle.net/11427/30768 ER -en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/30768
dc.identifier.vancouvercitationRademeyer R, Butterworth D. Projections under the selected Management Procedure for Greenland Halibut. 2018 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/30768en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Mathematics and Applied Mathematicsen_US
dc.publisher.facultyFaculty of Scienceen_US
dc.titleProjections under the selected Management Procedure for Greenland Halibuten_US
dc.typeReporten_US
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