Results for a "Replacement Yield" Model Fit to Catch and Survey Data for the South and West Coasts Kingklip Resource of South Africa

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dc.contributor.authorBrandão, Anabela
dc.contributor.authorButterworth, Doug S
dc.date.accessioned2016-11-15T13:50:39Z
dc.date.available2016-11-15T13:50:39Z
dc.date.issued2016-10
dc.description.abstractGiven the addition of updated and further data, the previous approach used to compute replacement yields (RY) for kingklip no longer provides satisfactory estimates of survey catchability q. Over a range of q values on the South coast from 0.1 to 0.7, the estimated RY increases from 760 to 1814 tons, compared to the previous estimate of 1614 tons. Correspondingly for the West coast, the RY decreases from 4253 to 2435 tons, compared to the previous estimate of 4102 tons. Suggestions are made of how the DWG might take this matter forward to develop catch limit recommendations based on the RY approach.en_ZA
dc.identifier.apacitationBrandão, A., & Butterworth, D. S. (2016). <i>Results for a "Replacement Yield" Model Fit to Catch and Survey Data for the South and West Coasts Kingklip Resource of South Africa</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group. Retrieved from http://hdl.handle.net/11427/22536en_ZA
dc.identifier.chicagocitationBrandão, Anabela, and Doug S Butterworth <i>Results for a "Replacement Yield" Model Fit to Catch and Survey Data for the South and West Coasts Kingklip Resource of South Africa.</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group, 2016. http://hdl.handle.net/11427/22536en_ZA
dc.identifier.citationBrandão, A. and Butterworth, D.S. 2016. Results for a "Replacement Yield" model fit to catch and survey data for the South and West Coasts kingklip resource of South Africa. DAFF Branch Fisheries document. FISHERIES/2016/OCT/SWG-DEM/73: 9ppen_ZA
dc.identifier.ris TY - Working Paper AU - Brandão, Anabela AU - Butterworth, Doug S AB - Given the addition of updated and further data, the previous approach used to compute replacement yields (RY) for kingklip no longer provides satisfactory estimates of survey catchability q. Over a range of q values on the South coast from 0.1 to 0.7, the estimated RY increases from 760 to 1814 tons, compared to the previous estimate of 1614 tons. Correspondingly for the West coast, the RY decreases from 4253 to 2435 tons, compared to the previous estimate of 4102 tons. Suggestions are made of how the DWG might take this matter forward to develop catch limit recommendations based on the RY approach. DA - 2016-10 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2016 T1 - Results for a "Replacement Yield" Model Fit to Catch and Survey Data for the South and West Coasts Kingklip Resource of South Africa TI - Results for a "Replacement Yield" Model Fit to Catch and Survey Data for the South and West Coasts Kingklip Resource of South Africa UR - http://hdl.handle.net/11427/22536 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/22536
dc.identifier.vancouvercitationBrandão A, Butterworth DS. Results for a "Replacement Yield" Model Fit to Catch and Survey Data for the South and West Coasts Kingklip Resource of South Africa. 2016 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/22536en_ZA
dc.languageengen_ZA
dc.publisher.departmentMarine Resource Assessment and Management Groupen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.rightsCreative Commons Attribution 4.0 International (CC BY 4.0)*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_ZA
dc.titleResults for a "Replacement Yield" Model Fit to Catch and Survey Data for the South and West Coasts Kingklip Resource of South Africaen_ZA
dc.typeWorking Paperen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceWorking paperen_ZA
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