Initial exploration of single-stock, two-stock and three-stock population models for humpback breeding stocks D, E1 and Oceania under different Antarctic stock boundaries assumptions

dc.contributor.authorRoss-Gillespie, Andrea
dc.contributor.authorButterworth, Doug S
dc.contributor.authorJohnston, Susan J
dc.date.accessioned2016-03-16T10:13:16Z
dc.date.available2016-03-16T10:13:16Z
dc.date.issued2013
dc.date.updated2016-03-16T09:44:21Z
dc.description.abstractA three-stock model with feeding and breeding ground interchange was proposed at IWC 64 for the assessment of Southern Hemisphere humpback whale breeding stocks D (West Australia), E1 (East Australia) and Oceania, with the aim of addressing some inconsistencies that arose in the single-stock assessments. First a two-stock (D+E1) and then a three-stock model with only mixing of stocks on the feeding grounds were developed, but it was found that neither removed these inconsistencies. It was found, however, that substantial improvements could be obtained by shifting the customary Antarctic stock boundaries to allow for more of the Antarctic catches to be allocated to breeding stock D. This paper presents the results of the single-stock, two-stock and three-stock models for both the original Antarctic boundaries, as well as the proposed new boundaries. The aim of the paper is to illustrate the effect of moving the boundaries and to provide a platform for further discussion and development at IWC 65.en_ZA
dc.identifier.apacitationRoss-Gillespie, A., Butterworth, D. S., & Johnston, S. J. (2013). <i>Initial exploration of single-stock, two-stock and three-stock population models for humpback breeding stocks D, E1 and Oceania under different Antarctic stock boundaries assumptions</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group. Retrieved from http://hdl.handle.net/11427/17849en_ZA
dc.identifier.chicagocitationRoss-Gillespie, Andrea, Doug S Butterworth, and Susan J Johnston <i>Initial exploration of single-stock, two-stock and three-stock population models for humpback breeding stocks D, E1 and Oceania under different Antarctic stock boundaries assumptions.</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group, 2013. http://hdl.handle.net/11427/17849en_ZA
dc.identifier.citationRoss-Gillespie, A., Butterworth, D. S., & Johnston, S. J. (2013). Assessment results for humpback breeding stocks D, E1 and Oceania following recommendations from SC 65a. SC/65b/SH04rev, presented to the IWC Scientific Committee, Slovenia.en_ZA
dc.identifier.ris TY - Working Paper AU - Ross-Gillespie, Andrea AU - Butterworth, Doug S AU - Johnston, Susan J AB - A three-stock model with feeding and breeding ground interchange was proposed at IWC 64 for the assessment of Southern Hemisphere humpback whale breeding stocks D (West Australia), E1 (East Australia) and Oceania, with the aim of addressing some inconsistencies that arose in the single-stock assessments. First a two-stock (D+E1) and then a three-stock model with only mixing of stocks on the feeding grounds were developed, but it was found that neither removed these inconsistencies. It was found, however, that substantial improvements could be obtained by shifting the customary Antarctic stock boundaries to allow for more of the Antarctic catches to be allocated to breeding stock D. This paper presents the results of the single-stock, two-stock and three-stock models for both the original Antarctic boundaries, as well as the proposed new boundaries. The aim of the paper is to illustrate the effect of moving the boundaries and to provide a platform for further discussion and development at IWC 65. DA - 2013 DB - OpenUCT DP - University of Cape Town KW - Antarctic stock KW - single-stock KW - population models KW - humpback breeding LK - https://open.uct.ac.za PB - University of Cape Town PY - 2013 T1 - Initial exploration of single-stock, two-stock and three-stock population models for humpback breeding stocks D, E1 and Oceania under different Antarctic stock boundaries assumptions TI - Initial exploration of single-stock, two-stock and three-stock population models for humpback breeding stocks D, E1 and Oceania under different Antarctic stock boundaries assumptions UR - http://hdl.handle.net/11427/17849 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/17849
dc.identifier.vancouvercitationRoss-Gillespie A, Butterworth DS, Johnston SJ. Initial exploration of single-stock, two-stock and three-stock population models for humpback breeding stocks D, E1 and Oceania under different Antarctic stock boundaries assumptions. 2013 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/17849en_ZA
dc.language.isoeng
dc.publisher.departmentMarine Resource Assessment and Management Groupen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subjectAntarctic stock
dc.subjectsingle-stock
dc.subjectpopulation models
dc.subjecthumpback breeding
dc.titleInitial exploration of single-stock, two-stock and three-stock population models for humpback breeding stocks D, E1 and Oceania under different Antarctic stock boundaries assumptionsen_ZA
dc.typeWorking Paperen_ZA
uct.type.publicationResearchen_ZA
uct.type.resourceResearch paperen_ZA
Files
Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Ross_Gillespie_Initial_exploration_2013.pdf
Size:
706.03 KB
Format:
Adobe Portable Document Format
Description:
License bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
license.txt
Size:
1.72 KB
Format:
Item-specific license agreed upon to submission
Description:
Collections