Bayesian assessments using models which allow for interchange on the breeding grounds of Southern Hemisphere humpback whale breeding Sub stocks C1 and C3
| dc.contributor.author | Johnston, Susan J | |
| dc.contributor.author | Butterworth, Doug S | |
| dc.date.accessioned | 2016-04-01T09:31:23Z | |
| dc.date.available | 2016-04-01T09:31:23Z | |
| dc.date.issued | 2009 | |
| dc.date.updated | 2016-04-01T09:29:14Z | |
| dc.description.abstract | Bayesian stock assessment results for breeding sub-stocks C1 and C3 using models which allow for interchange on the breeding grounds as well as mixing on the feeding grounds are illustrated for four models – the sabbatical, tourist and migrant models and the resident model (for which interchange is set to zero.) Results are also presented for a range of sensitivity tests. The availability of photo-id data allows the estimation of interchange rates. The estimates of these interchange rates are generally low with posterior median estimates all below 6% p.a., and estimated trajectories are fairly similar for all models considered. With single exceptions, current (2006) posterior median population sizes relative to pre-exploitation levels are all estimated to exceed 80% for C1 and 90% for C3. | en_ZA |
| dc.identifier.apacitation | Johnston, S. J., & Butterworth, D. (2009). <i>Bayesian assessments using models which allow for interchange on the breeding grounds of Southern Hemisphere humpback whale breeding Sub stocks C1 and C3</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group. Retrieved from http://hdl.handle.net/11427/18501 | en_ZA |
| dc.identifier.chicagocitation | Johnston, Susan J, and DS Butterworth <i>Bayesian assessments using models which allow for interchange on the breeding grounds of Southern Hemisphere humpback whale breeding Sub stocks C1 and C3.</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group, 2009. http://hdl.handle.net/11427/18501 | en_ZA |
| dc.identifier.citation | Johnston, S. J., & Butterworth, D. S. (2009). Bayesian assessments using models which allow for interchange on the breeding grounds of Southern Hemisphere humpback whale breeding sub-stocks C1 and C3. IWC document SC/61/SH27. | en_ZA |
| dc.identifier.ris | TY - Working Paper AU - Johnston, Susan J AU - Butterworth, DS AB - Bayesian stock assessment results for breeding sub-stocks C1 and C3 using models which allow for interchange on the breeding grounds as well as mixing on the feeding grounds are illustrated for four models – the sabbatical, tourist and migrant models and the resident model (for which interchange is set to zero.) Results are also presented for a range of sensitivity tests. The availability of photo-id data allows the estimation of interchange rates. The estimates of these interchange rates are generally low with posterior median estimates all below 6% p.a., and estimated trajectories are fairly similar for all models considered. With single exceptions, current (2006) posterior median population sizes relative to pre-exploitation levels are all estimated to exceed 80% for C1 and 90% for C3. DA - 2009 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2009 T1 - Bayesian assessments using models which allow for interchange on the breeding grounds of Southern Hemisphere humpback whale breeding Sub stocks C1 and C3 TI - Bayesian assessments using models which allow for interchange on the breeding grounds of Southern Hemisphere humpback whale breeding Sub stocks C1 and C3 UR - http://hdl.handle.net/11427/18501 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/18501 | |
| dc.identifier.vancouvercitation | Johnston SJ, Butterworth D. Bayesian assessments using models which allow for interchange on the breeding grounds of Southern Hemisphere humpback whale breeding Sub stocks C1 and C3. 2009 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/18501 | 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 | Bayesian assessment | |
| dc.subject.other | humpback whale | |
| dc.subject.other | interchange | |
| dc.title | Bayesian assessments using models which allow for interchange on the breeding grounds of Southern Hemisphere humpback whale breeding Sub stocks C1 and C3 | en_ZA |
| dc.type | Working Paper | en_ZA |
| uct.type.filetype | Text | |
| uct.type.publication | Research | en_ZA |
| uct.type.resource | Research paper | en_ZA |