Overall results for the effect of the presence of an observer on catches made by the pelagic fleet

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dc.contributor.authorSomhlaba, S
dc.contributor.authorBrandão, Anabela
dc.contributor.authorButterworth, Doug S
dc.date.accessioned2016-03-15T09:11:41Z
dc.date.available2016-03-15T09:11:41Z
dc.date.issued2005
dc.date.updated2016-03-15T09:08:26Z
dc.description.abstractThe analysis of the observer data for the pelagic fishery is taken further for the complete data base from 1999 to 2004. Previously the analysis had been based on steel vessels (Somhlaba et al., 2005); those findings showed that there were statistically significant positive effects on catches given the presence of an observer on the steel vessels. The results below include the analysis of the combined data for all three categories of vessels: bait, ordinary and steel vessels. Sardine and anchovy data were analysed in detail using one model but with two different error structures: one lognormal (henceforth termed LogCPUE) and the other Poisson (henceforth termed catch).en_ZA
dc.identifier.apacitationSomhlaba, S., Brandão, A., & Butterworth, D. S. (2005). <i>Overall results for the effect of the presence of an observer on catches made by the pelagic fleet</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group. Retrieved from http://hdl.handle.net/11427/17793en_ZA
dc.identifier.chicagocitationSomhlaba, S, Anabela Brandão, and Doug S Butterworth <i>Overall results for the effect of the presence of an observer on catches made by the pelagic fleet.</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group, 2005. http://hdl.handle.net/11427/17793en_ZA
dc.identifier.citationSomhlaba, S., Brandão, A., & Butterworth, D. S. (2005). Overall results for the effect of the presence of an observer on catches made by the pelagic fleet. Unpublished report MCM, South Africa. SWG/DEC2005/PEL/06.en_ZA
dc.identifier.ris TY - Working Paper AU - Somhlaba, S AU - Brandão, Anabela AU - Butterworth, Doug S AB - The analysis of the observer data for the pelagic fishery is taken further for the complete data base from 1999 to 2004. Previously the analysis had been based on steel vessels (Somhlaba et al., 2005); those findings showed that there were statistically significant positive effects on catches given the presence of an observer on the steel vessels. The results below include the analysis of the combined data for all three categories of vessels: bait, ordinary and steel vessels. Sardine and anchovy data were analysed in detail using one model but with two different error structures: one lognormal (henceforth termed LogCPUE) and the other Poisson (henceforth termed catch). DA - 2005 DB - OpenUCT DP - University of Cape Town KW - results KW - observer KW - pelagic fleet LK - https://open.uct.ac.za PB - University of Cape Town PY - 2005 T1 - Overall results for the effect of the presence of an observer on catches made by the pelagic fleet TI - Overall results for the effect of the presence of an observer on catches made by the pelagic fleet UR - http://hdl.handle.net/11427/17793 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/17793
dc.identifier.vancouvercitationSomhlaba S, Brandão A, Butterworth DS. Overall results for the effect of the presence of an observer on catches made by the pelagic fleet. 2005 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/17793en_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.subjectresults
dc.subjectobserver
dc.subjectpelagic fleet
dc.titleOverall results for the effect of the presence of an observer on catches made by the pelagic fleeten_ZA
dc.typeWorking Paperen_ZA
uct.type.publicationResearchen_ZA
uct.type.resourceResearch paperen_ZA
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