Is the length distribution of C1 and C3 humpback whale catches consistent with an age-structured version of the resident model
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 mi...
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University of Cape Town
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ftunivcapetownir:oai:localhost:11427/19657 2023-05-15T16:35:48+02:00 Is the length distribution of C1 and C3 humpback whale catches consistent with an age-structured version of the resident model Müller, Andrea Butterworth, Doug S Johnston, Susan J 2009 application/pdf http://hdl.handle.net/11427/19657 https://open.uct.ac.za/bitstream/11427/19657/1/M%c3%bcller_Is_length_distribution_2009.pdf eng eng University of Cape Town Faculty of Science Marine Resource Assessment and Management Group http://hdl.handle.net/11427/19657 https://open.uct.ac.za/bitstream/11427/19657/1/M%c3%bcller_Is_length_distribution_2009.pdf humpback whale age-structured version of the resident model Working Paper 2009 ftunivcapetownir 2022-09-13T05:52:47Z 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. Report Humpback Whale University of Cape Town: OpenUCT |
institution |
Open Polar |
collection |
University of Cape Town: OpenUCT |
op_collection_id |
ftunivcapetownir |
language |
English |
topic |
humpback whale age-structured version of the resident model |
spellingShingle |
humpback whale age-structured version of the resident model Müller, Andrea Butterworth, Doug S Johnston, Susan J Is the length distribution of C1 and C3 humpback whale catches consistent with an age-structured version of the resident model |
topic_facet |
humpback whale age-structured version of the resident model |
description |
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. |
format |
Report |
author |
Müller, Andrea Butterworth, Doug S Johnston, Susan J |
author_facet |
Müller, Andrea Butterworth, Doug S Johnston, Susan J |
author_sort |
Müller, Andrea |
title |
Is the length distribution of C1 and C3 humpback whale catches consistent with an age-structured version of the resident model |
title_short |
Is the length distribution of C1 and C3 humpback whale catches consistent with an age-structured version of the resident model |
title_full |
Is the length distribution of C1 and C3 humpback whale catches consistent with an age-structured version of the resident model |
title_fullStr |
Is the length distribution of C1 and C3 humpback whale catches consistent with an age-structured version of the resident model |
title_full_unstemmed |
Is the length distribution of C1 and C3 humpback whale catches consistent with an age-structured version of the resident model |
title_sort |
is the length distribution of c1 and c3 humpback whale catches consistent with an age-structured version of the resident model |
publisher |
University of Cape Town |
publishDate |
2009 |
url |
http://hdl.handle.net/11427/19657 https://open.uct.ac.za/bitstream/11427/19657/1/M%c3%bcller_Is_length_distribution_2009.pdf |
genre |
Humpback Whale |
genre_facet |
Humpback Whale |
op_relation |
http://hdl.handle.net/11427/19657 https://open.uct.ac.za/bitstream/11427/19657/1/M%c3%bcller_Is_length_distribution_2009.pdf |
_version_ |
1766026101283356672 |