GLM standardised CPUE abundance indices for orange roughy off Namibia from 1994 now updated to include records up to 2005
| dc.contributor.author | Brandão, Anabela | |
| dc.contributor.author | Butterworth, Doug S | |
| dc.date.accessioned | 2016-03-22T10:03:13Z | |
| dc.date.available | 2016-03-22T10:03:13Z | |
| dc.date.issued | 2006 | |
| dc.date.updated | 2016-03-22T10:02:01Z | |
| dc.description.abstract | GLM analyses are used to standardise the CPUE data for Namibian orange roughy in a manner that deals with tows that record zero catch of orange roughy. The possibility of there being a “learning” period of lower CPUE for a new vessel when it enters the fishery is taken into account. Further, to allow for areal expansion of the fishery at each aggregation, sub-aggregations are defined and CPUE trends estimated separately for each. Different methods for combining the results for the various sub-aggregations to provide a single index for an aggregation are considered. The standardised CPUE values for 2004 (i.e. the July 2004 – June 2005 fishing year) are more often below than above those for the previous year. | en_ZA |
| dc.identifier.apacitation | Brandão, A., & Butterworth, D. S. (2006). <i>GLM standardised CPUE abundance indices for orange roughy off Namibia from 1994 now updated to include records up to 2005</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group. Retrieved from http://hdl.handle.net/11427/18159 | en_ZA |
| dc.identifier.chicagocitation | Brandão, Anabela, and Doug S Butterworth <i>GLM standardised CPUE abundance indices for orange roughy off Namibia from 1994 now updated to include records up to 2005.</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group, 2006. http://hdl.handle.net/11427/18159 | en_ZA |
| dc.identifier.citation | Brandão, A., & Butterworth, D. S. (2006). GLM standardised CPUE abundance indices for orange roughy off Namibia from 1994 now updated to include records up to 2005. Namibian Ministry of Fisheries and Marine Resources document DWFWG/WkShop/Feb06/Doc, 2. | en_ZA |
| dc.identifier.ris | TY - Working Paper AU - Brandão, Anabela AU - Butterworth, Doug S AB - GLM analyses are used to standardise the CPUE data for Namibian orange roughy in a manner that deals with tows that record zero catch of orange roughy. The possibility of there being a “learning” period of lower CPUE for a new vessel when it enters the fishery is taken into account. Further, to allow for areal expansion of the fishery at each aggregation, sub-aggregations are defined and CPUE trends estimated separately for each. Different methods for combining the results for the various sub-aggregations to provide a single index for an aggregation are considered. The standardised CPUE values for 2004 (i.e. the July 2004 – June 2005 fishing year) are more often below than above those for the previous year. DA - 2006 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2006 T1 - GLM standardised CPUE abundance indices for orange roughy off Namibia from 1994 now updated to include records up to 2005 TI - GLM standardised CPUE abundance indices for orange roughy off Namibia from 1994 now updated to include records up to 2005 UR - http://hdl.handle.net/11427/18159 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/18159 | |
| dc.identifier.vancouvercitation | Brandão A, Butterworth DS. GLM standardised CPUE abundance indices for orange roughy off Namibia from 1994 now updated to include records up to 2005. 2006 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/18159 | en_ZA |
| dc.language | eng | 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.title | GLM standardised CPUE abundance indices for orange roughy off Namibia from 1994 now updated to include records up to 2005 | en_ZA |
| dc.type | Working Paper | en_ZA |
| uct.type.filetype | Text | |
| uct.type.filetype | Image | |
| uct.type.publication | Research | en_ZA |
| uct.type.resource | Research paper | en_ZA |