An indirect investigation of the possible influence of port on the estimation of observer effects on catch rates in the pelagic fishery
dc.contributor.author | Somhlaba, S | |
dc.contributor.author | Brandão, Anabela | |
dc.contributor.author | Plagányi, Éva E | |
dc.contributor.author | Butterworth, Doug S | |
dc.date.accessioned | 2016-03-16T09:30:01Z | |
dc.date.available | 2016-03-16T09:30:01Z | |
dc.date.issued | 2006 | |
dc.date.updated | 2016-03-16T08:05:24Z | |
dc.description.abstract | 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. | en_ZA |
dc.identifier.apacitation | Somhlaba, 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/11427/17843 | en_ZA |
dc.identifier.chicagocitation | Somhlaba, 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/11427/17843 | en_ZA |
dc.identifier.citation | Somhlaba, 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.uri | http://hdl.handle.net/11427/17843 | |
dc.identifier.vancouvercitation | Somhlaba 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/11427/17843 | en_ZA |
dc.language | eng | en_ZA |
dc.publisher | University of Cape Town | en_ZA |
dc.publisher.department | Marine Resource Assessment and Management Group | en_ZA |
dc.publisher.faculty | Faculty of Science | en_ZA |
dc.publisher.institution | University of Cape Town | |
dc.subject | observer effect | |
dc.subject | catch rates | |
dc.subject | pelagic fishery | |
dc.title | An indirect investigation of the possible influence of port on the estimation of observer effects on catch rates in the pelagic fishery | en_ZA |
dc.type | Working Paper | en_ZA |
uct.type.publication | Research | en_ZA |
uct.type.resource | Research paper | en_ZA |