Is the length distribution of C1 and C3 humpback whale catches consistent with an age-structured version of the resident model
| dc.contributor.author | Müller, Andrea | |
| dc.contributor.author | Butterworth, Doug S | |
| dc.contributor.author | Johnston, Susan J | |
| dc.date.accessioned | 2016-03-31T09:27:54Z | |
| dc.date.available | 2016-03-31T09:27:54Z | |
| dc.date.issued | 2009 | |
| dc.date.updated | 2016-03-31T09:26:38Z | |
| dc.description.abstract | A sex- and age-structured BALEEN II population model is fitted to population abundance and trend as well as photo-id capture-recapture data for the C1 and C3 humpback whale breeding sub-stocks. The model is of the “Resident” type, i.e. no interchange between breeding grounds, though the whales do mix on the feeding grounds. Uniform selectivity on the 1+ population is assumed for both regions. A particular aim is to address the question of whether length distribution differences between the two regions are a reflection of different levels of past exploitation. Comparison with length distribution data for both regions does however indicate a greater proportion of larger males than anticipated in the C3 catches, and the reverse effect for both males and females in the C1 catches. | en_ZA |
| dc.identifier.apacitation | Müller, A., Butterworth, D. S., & Johnston, S. J. (2009). <i>Is the length distribution of C1 and C3 humpback whale catches consistent with an age-structured version of the resident model</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group. Retrieved from http://hdl.handle.net/11427/18442 | en_ZA |
| dc.identifier.chicagocitation | Müller, Andrea, Doug S Butterworth, and Susan J Johnston <i>Is the length distribution of C1 and C3 humpback whale catches consistent with an age-structured version of the resident model.</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group, 2009. http://hdl.handle.net/11427/18442 | en_ZA |
| dc.identifier.citation | Müller, A., Butterworth, D. S., & Johnston, S. J. (2009). Is the length distribution of c1 and c3 humpback whale catches consistent with an age-structured version of the resident model?. International Whaling commission Document: sc/61/sh29, 1-34. | en_ZA |
| dc.identifier.ris | TY - Working Paper AU - Müller, Andrea AU - Butterworth, Doug S AU - Johnston, Susan J AB - A sex- and age-structured BALEEN II population model is fitted to population abundance and trend as well as photo-id capture-recapture data for the C1 and C3 humpback whale breeding sub-stocks. The model is of the “Resident” type, i.e. no interchange between breeding grounds, though the whales do mix on the feeding grounds. Uniform selectivity on the 1+ population is assumed for both regions. A particular aim is to address the question of whether length distribution differences between the two regions are a reflection of different levels of past exploitation. Comparison with length distribution data for both regions does however indicate a greater proportion of larger males than anticipated in the C3 catches, and the reverse effect for both males and females in the C1 catches. DA - 2009 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2009 T1 - Is the length distribution of C1 and C3 humpback whale catches consistent with an age-structured version of the resident model TI - Is the length distribution of C1 and C3 humpback whale catches consistent with an age-structured version of the resident model UR - http://hdl.handle.net/11427/18442 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/18442 | |
| dc.identifier.vancouvercitation | Müller A, Butterworth DS, Johnston SJ. Is the length distribution of C1 and C3 humpback whale catches consistent with an age-structured version of the resident model. 2009 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/18442 | 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 | humpback whale | |
| dc.subject.other | age-structured version of the resident model | |
| dc.title | Is the length distribution of C1 and C3 humpback whale catches consistent with an age-structured version of the resident model | 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 |