An indirect investigation of the possible influence of port on the estimation of observer effects on catch rates in the pelagic fishery

dc.contributor.authorSomhlaba, S
dc.contributor.authorBrandão, Anabela
dc.contributor.authorPlagányi, Éva E
dc.contributor.authorButterworth, Doug S
dc.date.accessioned2016-03-16T09:30:01Z
dc.date.available2016-03-16T09:30:01Z
dc.date.issued2006
dc.date.updated2016-03-16T08:05:24Z
dc.description.abstractEarlier GLM analyses of catch per hour data for sardine and anchovy to determine observer effects have suggested statistically significant increases in this catch rate with observers on the vessels over January-to June for the sardine fishery, and over May to October for the anchovy fishery (Somhlaba et al. 2006). This in turn has raised the possibility that this may reflect (and provide quantification of the extent of) slippage in the catching operations conducted without observers present.en_ZA
dc.identifier.apacitationSomhlaba, S., Brandão, A., Plagányi, É. E., & Butterworth, D. S. (2006). <i>An indirect investigation of the possible influence of port on the estimation of observer effects on catch rates in the pelagic fishery</i> University of Cape Town. Retrieved from http://hdl.handle.net/11427/17843en_ZA
dc.identifier.chicagocitationSomhlaba, S, Anabela Brandão, Éva E Plagányi, and Doug S Butterworth <i>An indirect investigation of the possible influence of port on the estimation of observer effects on catch rates in the pelagic fishery.</i> University of Cape Town, 2006. http://hdl.handle.net/11427/17843en_ZA
dc.identifier.citationSomhlaba, S., Brandão, A., Plagányi, É.E. & Butterworth, D.S. (2006). An indirect investigation of the possible influence of port on the estimation of observer effects on catch rates in the pelagic fishery. Marine and Coastal Management document: WG/MAY2006/PEL/04: 1-4.en_ZA
dc.identifier.ris TY - Working Paper AU - Somhlaba, S AU - Brandão, Anabela AU - Plagányi, Éva E AU - Butterworth, Doug S AB - Earlier GLM analyses of catch per hour data for sardine and anchovy to determine observer effects have suggested statistically significant increases in this catch rate with observers on the vessels over January-to June for the sardine fishery, and over May to October for the anchovy fishery (Somhlaba et al. 2006). This in turn has raised the possibility that this may reflect (and provide quantification of the extent of) slippage in the catching operations conducted without observers present. DA - 2006 DB - OpenUCT DP - University of Cape Town KW - observer effect KW - catch rates KW - pelagic fishery LK - https://open.uct.ac.za PB - University of Cape Town PY - 2006 T1 - An indirect investigation of the possible influence of port on the estimation of observer effects on catch rates in the pelagic fishery TI - An indirect investigation of the possible influence of port on the estimation of observer effects on catch rates in the pelagic fishery UR - http://hdl.handle.net/11427/17843 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/17843
dc.identifier.vancouvercitationSomhlaba S, Brandão A, Plagányi ÉE, Butterworth DS. An indirect investigation of the possible influence of port on the estimation of observer effects on catch rates in the pelagic fishery. 2006 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/17843en_ZA
dc.languageengen_ZA
dc.publisherUniversity of Cape Townen_ZA
dc.publisher.departmentMarine Resource Assessment and Management Groupen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subjectobserver effect
dc.subjectcatch rates
dc.subjectpelagic fishery
dc.titleAn indirect investigation of the possible influence of port on the estimation of observer effects on catch rates in the pelagic fisheryen_ZA
dc.typeWorking Paperen_ZA
uct.type.publicationResearchen_ZA
uct.type.resourceResearch paperen_ZA
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