Assessment of the South African sardine resource using data from 1984-2011: results for a two stock hypothesis at the posterior mode
| dc.contributor.author | De Moor, Carryn L | |
| dc.contributor.author | Butterworth, Doug S | |
| dc.date.accessioned | 2016-03-31T10:53:27Z | |
| dc.date.available | 2016-03-31T10:53:27Z | |
| dc.date.issued | 2013 | |
| dc.date.updated | 2016-03-31T10:51:40Z | |
| dc.description.abstract | As part of the process of updating the assessment of the South African sardine resource, a model of a sardine two mixing-stock hypothesis has been developed. This hypothesis postulates a “west” stock distributed west of Cape Agulhas and a “south” stock distributed south-east of Cape Agulhas, with movement from the “west” to the “south” stock in November as recruits age to 1 year olds. de Moor and Butterworth (2012a, 2013) presented some initial results for a two mixing-stock model. Work on modelling this hypothesis has continued to try to ascertain in which areas the model may be over-parameterised and which “unimportant” parameters can be fixed at constant values without unduly influencing key results. Further testing of model assumptions has also been undertaken. In this document further results for the model of a two sardine mixing-stock hypothesis are presented and a base case operating model is proposed. | |
| dc.identifier.apacitation | De Moor, C. L., & Butterworth, D. S. (2013). <i>Assessment of the South African sardine resource using data from 1984-2011: results for a two stock hypothesis at the posterior mode</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group. Retrieved from http://hdl.handle.net/11427/18454 | en_ZA |
| dc.identifier.chicagocitation | De Moor, Carryn L, and Doug S Butterworth <i>Assessment of the South African sardine resource using data from 1984-2011: results for a two stock hypothesis at the posterior mode.</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group, 2013. http://hdl.handle.net/11427/18454 | en_ZA |
| dc.identifier.citation | de Moor, C. L., & Butterworth, D. S. (2013). Assessment of the South African sardine resource using data from 1984-2011: results for a two stock hypothesis at the posterior mode. FISHERIES. | en_ZA |
| dc.identifier.ris | TY - Working Paper AU - De Moor, Carryn L AU - Butterworth, Doug S AB - As part of the process of updating the assessment of the South African sardine resource, a model of a sardine two mixing-stock hypothesis has been developed. This hypothesis postulates a “west” stock distributed west of Cape Agulhas and a “south” stock distributed south-east of Cape Agulhas, with movement from the “west” to the “south” stock in November as recruits age to 1 year olds. de Moor and Butterworth (2012a, 2013) presented some initial results for a two mixing-stock model. Work on modelling this hypothesis has continued to try to ascertain in which areas the model may be over-parameterised and which “unimportant” parameters can be fixed at constant values without unduly influencing key results. Further testing of model assumptions has also been undertaken. In this document further results for the model of a two sardine mixing-stock hypothesis are presented and a base case operating model is proposed. DA - 2013 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2013 T1 - Assessment of the South African sardine resource using data from 1984-2011: results for a two stock hypothesis at the posterior mode TI - Assessment of the South African sardine resource using data from 1984-2011: results for a two stock hypothesis at the posterior mode UR - http://hdl.handle.net/11427/18454 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/18454 | |
| dc.identifier.vancouvercitation | De Moor CL, Butterworth DS. Assessment of the South African sardine resource using data from 1984-2011: results for a two stock hypothesis at the posterior mode. 2013 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/18454 | 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 | Assessment of the South African sardine resource using data from 1984-2011: results for a two stock hypothesis at the posterior mode | 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 |