Assessment of the South African Hake resource taking its two-species nature into account

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dc.contributor.authorRademeyer, Rebecca A
dc.contributor.authorButterworth, Doug S
dc.contributor.authorPlagányi, Éva E
dc.date.accessioned2016-03-08T15:28:46Z
dc.date.available2016-03-08T15:28:46Z
dc.date.issued2008
dc.date.updated2016-03-08T10:22:56Z
dc.description.abstractThe commercially valuable hake fishery off South Africa consists of two morphologically similar species, the shallow-water Cape hake Merluccius capensis and the deep-water Cape hake M. paradoxus. Because catch-and effort statistics collected from the fishery are not species-disaggregated, previous published quantitative assessment methods have treated the two hake species as one. Furthermore, recent evidence suggests that (although treated as two separate populations in past assessments) the South and West coasts components of each species form a single stock. This paper describes the development of the first fully species-disaggregated coast-wide baseline assessment of the South African hake resource. M. paradoxus is estimated to be currently at <10% of its pre-exploitation level whereas M. capensis is estimated to be well above its maximum sustainable yield level. By taking into consideration the primary sources of uncertainty in this assessment, a Reference Set of 24 operating models is developed to be used in Operational Management Procedure testing.en_ZA
dc.identifierhttp://dx.doi.org/10.2989/AJMS.2008.30.2.7.557
dc.identifier10.2989/AJMS.2008.30.2.7.557
dc.identifier.apacitationRademeyer, R. A., Butterworth, D. S., & Plagányi, É. E. (2008). Assessment of the South African Hake resource taking its two-species nature into account. <i>African Journal of Marine Science</i>, http://hdl.handle.net/11427/17585en_ZA
dc.identifier.chicagocitationRademeyer, Rebecca A, Doug S Butterworth, and Éva E Plagányi "Assessment of the South African Hake resource taking its two-species nature into account." <i>African Journal of Marine Science</i> (2008) http://hdl.handle.net/11427/17585en_ZA
dc.identifier.citationRademeyer, R. A., Butterworth, D. S., & Plagányi, É. E. (2008). Assessment of the South African hake resource taking its two-species nature into account. African Journal of Marine Science, 30(2), 263-290. DOI: http://dx.doi.org/10.2989/AJMS.2008.30.2.7.557en_ZA
dc.identifier.issn1814-232Xen_ZA
dc.identifier.ris TY - Journal Article AU - Rademeyer, Rebecca A AU - Butterworth, Doug S AU - Plagányi, Éva E AB - The commercially valuable hake fishery off South Africa consists of two morphologically similar species, the shallow-water Cape hake Merluccius capensis and the deep-water Cape hake M. paradoxus. Because catch-and effort statistics collected from the fishery are not species-disaggregated, previous published quantitative assessment methods have treated the two hake species as one. Furthermore, recent evidence suggests that (although treated as two separate populations in past assessments) the South and West coasts components of each species form a single stock. This paper describes the development of the first fully species-disaggregated coast-wide baseline assessment of the South African hake resource. M. paradoxus is estimated to be currently at <10% of its pre-exploitation level whereas M. capensis is estimated to be well above its maximum sustainable yield level. By taking into consideration the primary sources of uncertainty in this assessment, a Reference Set of 24 operating models is developed to be used in Operational Management Procedure testing. DA - 2008 DB - OpenUCT DP - University of Cape Town J1 - African Journal of Marine Science LK - https://open.uct.ac.za PB - University of Cape Town PY - 2008 SM - 1814-232X T1 - Assessment of the South African Hake resource taking its two-species nature into account TI - Assessment of the South African Hake resource taking its two-species nature into account UR - http://hdl.handle.net/11427/17585 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/17585
dc.identifier.urihttp://www.tandfonline.com/doi/abs/10.2989/AJMS.2008.30.2.7.557
dc.identifier.vancouvercitationRademeyer RA, Butterworth DS, Plagányi ÉE. Assessment of the South African Hake resource taking its two-species nature into account. African Journal of Marine Science. 2008; http://hdl.handle.net/11427/17585.en_ZA
dc.languageengen_ZA
dc.publisherNational Inquiry Services Centreen_ZA
dc.publisher.departmentMarine Resource Assessment and Management Groupen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.sourceAfrican Journal of Marine Scienceen_ZA
dc.source.urihttp://www.ajol.info/index.php/ajms
dc.titleAssessment of the South African Hake resource taking its two-species nature into accounten_ZA
dc.typeJournal Articleen_ZA
uct.subject.keywordsfisheries stock assessmenten_ZA
uct.subject.keywordshakeen_ZA
uct.subject.keywordsmultistocksen_ZA
uct.subject.keywordsReference Seten_ZA
uct.subject.keywordsSouth Africaen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceArticleen_ZA
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