Sensitivity of abalone assessment model to having no recent commercial data
| dc.contributor.author | Plagányi, Éva E | |
| dc.contributor.author | Butterworth, Doug S | |
| dc.date.accessioned | 2016-03-18T12:02:37Z | |
| dc.date.available | 2016-03-18T12:02:37Z | |
| dc.date.issued | 2008 | |
| dc.date.updated | 2016-03-18T12:00:28Z | |
| dc.description.abstract | The consequences of absence of availability of commercial data for the assessment of abalone in zones A and B are examined by assuming an absence of commercial data over the past five years. This results in the extent of uncertainty about current resource size roughly doubling, and of about current poaching levels roughly increasing by a factor of 1.5 for Zone A and 2.5 (i.e. more than double) for Zone B. These results point towards a substantial deterioration in ability to assess the abalone resource with reasonable precision in the next few years in the absence of trend information previously provided by CPUE data. | en_ZA |
| dc.identifier.apacitation | Plagányi, É. E., & Butterworth, D. (2008). <i>Sensitivity of abalone assessment model to having no recent commercial data</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group. Retrieved from http://hdl.handle.net/11427/17999 | en_ZA |
| dc.identifier.chicagocitation | Plagányi, Éva E, and Doug Butterworth <i>Sensitivity of abalone assessment model to having no recent commercial data.</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group, 2008. http://hdl.handle.net/11427/17999 | en_ZA |
| dc.identifier.citation | Plagányi, É., & Butterworth, D. (2008). Sensitivity of abalone assessment model to having no recent commercial data. Unpublished, University of Capetown | en_ZA |
| dc.identifier.ris | TY - Working Paper AU - Plagányi, Éva E AU - Butterworth, Doug AB - The consequences of absence of availability of commercial data for the assessment of abalone in zones A and B are examined by assuming an absence of commercial data over the past five years. This results in the extent of uncertainty about current resource size roughly doubling, and of about current poaching levels roughly increasing by a factor of 1.5 for Zone A and 2.5 (i.e. more than double) for Zone B. These results point towards a substantial deterioration in ability to assess the abalone resource with reasonable precision in the next few years in the absence of trend information previously provided by CPUE data. DA - 2008 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2008 T1 - Sensitivity of abalone assessment model to having no recent commercial data TI - Sensitivity of abalone assessment model to having no recent commercial data UR - http://hdl.handle.net/11427/17999 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/17999 | |
| dc.identifier.vancouvercitation | Plagányi ÉE, Butterworth D. Sensitivity of abalone assessment model to having no recent commercial data. 2008 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/17999 | 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.subject.other | Abalone assessment model | |
| dc.subject.other | commercial data | |
| dc.title | Sensitivity of abalone assessment model to having no recent commercial data | en_ZA |
| dc.type | Working Paper | en_ZA |
| uct.type.publication | Research | en_ZA |
| uct.type.resource | Research paper | en_ZA |