A preliminary evaluation of the potential use of pelagic survey data in setting the horse mackerel PUCL

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dc.contributor.authorFurman, Liam B
dc.contributor.authorButterworth, Doug S
dc.date.accessioned2016-04-05T09:40:05Z
dc.date.available2016-04-05T09:40:05Z
dc.date.issued2011
dc.date.updated2016-04-05T08:15:56Z
dc.description.abstractThe existing population model for the horse-mackerel resource is extended to take commercial catch-at-length information from the mid-water trawl fishery and demersal surveys into account to allow the estimation of recruitment variations, which are correlated with the results for horse-mackerel abundance (considered to primarily reflect recruits) from the November pelagic surveys. Correlation is better with results for the West coast only from these surveys, rather than with those for the assessment area as a whole. At this stage the conclusion is either that these November survey estimates are (for whatever reason) a relatively weak predictor of incoming horse-mackerel recruitment strength, or that there are problems with the modelling of the demersal/midwater data which require further attention.en_ZA
dc.identifier.apacitationFurman, L. B., & Butterworth, D. S. (2011). <i>A preliminary evaluation of the potential use of pelagic survey data in setting the horse mackerel PUCL</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group. Retrieved from http://hdl.handle.net/11427/18558en_ZA
dc.identifier.chicagocitationFurman, Liam B, and Doug S Butterworth <i>A preliminary evaluation of the potential use of pelagic survey data in setting the horse mackerel PUCL.</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group, 2011. http://hdl.handle.net/11427/18558en_ZA
dc.identifier.citationFurman, L. B. & Butterworth, D.S. (2011). A preliminary evaluation of the potential use of pelagic survey data in setting the horse mackerel PUCL. FISHERIES.en_ZA
dc.identifier.ris TY - Working Paper AU - Furman, Liam B AU - Butterworth, Doug S AB - The existing population model for the horse-mackerel resource is extended to take commercial catch-at-length information from the mid-water trawl fishery and demersal surveys into account to allow the estimation of recruitment variations, which are correlated with the results for horse-mackerel abundance (considered to primarily reflect recruits) from the November pelagic surveys. Correlation is better with results for the West coast only from these surveys, rather than with those for the assessment area as a whole. At this stage the conclusion is either that these November survey estimates are (for whatever reason) a relatively weak predictor of incoming horse-mackerel recruitment strength, or that there are problems with the modelling of the demersal/midwater data which require further attention. DA - 2011 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2011 T1 - A preliminary evaluation of the potential use of pelagic survey data in setting the horse mackerel PUCL TI - A preliminary evaluation of the potential use of pelagic survey data in setting the horse mackerel PUCL UR - http://hdl.handle.net/11427/18558 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/18558
dc.identifier.vancouvercitationFurman LB, Butterworth DS. A preliminary evaluation of the potential use of pelagic survey data in setting the horse mackerel PUCL. 2011 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/18558en_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.titleA preliminary evaluation of the potential use of pelagic survey data in setting the horse mackerel PUCLen_ZA
dc.typeWorking Paperen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceResearch paperen_ZA
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