Bayesian estimation of humpback whale ( Megaptera novaeangliae) population abundance and movement patterns in southeastern Alaska
We used a mechanistic movement model within a Bayesian framework to estimate survival, abundance, and rate of increase for a population of humpback whales ( Megaptera novaeangliae ) subject to a long-term photographic capture–recapture effort in southeastern Alaska, USA (SEAK). Multiple competing mo...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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crcansciencepubl:10.1139/f2012-101 2024-05-19T07:41:45+00:00 Bayesian estimation of humpback whale ( Megaptera novaeangliae) population abundance and movement patterns in southeastern Alaska Hendrix, A.N. Straley, J. Gabriele, C.M. Gende, S.M. Chen, Yong 2012 http://dx.doi.org/10.1139/f2012-101 http://www.nrcresearchpress.com/doi/full-xml/10.1139/f2012-101 http://www.nrcresearchpress.com/doi/pdf/10.1139/f2012-101 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 69, issue 11, page 1783-1797 ISSN 0706-652X 1205-7533 journal-article 2012 crcansciencepubl https://doi.org/10.1139/f2012-101 2024-05-02T06:51:26Z We used a mechanistic movement model within a Bayesian framework to estimate survival, abundance, and rate of increase for a population of humpback whales ( Megaptera novaeangliae ) subject to a long-term photographic capture–recapture effort in southeastern Alaska, USA (SEAK). Multiple competing models were fitted that differed in movement, recapture rates, and observation error using deviance information criterion. The median annual survival probability in the selected model was 0.996 (95% central probability interval (CrI): 0.984, 0.999), which is among the highest reported for this species. Movement among areas was temporally dynamic, although whales exhibited high area fidelity (probability of returning to same area of ≥0.75) throughout the study. Median abundance was 1585 whales in 2008 (95% CrI: 1455, 1644). Incorporating an abundance estimate of 393 (95% confidence interval: 331, 455) whales from 1986, the median rate of increase was 5.1% (95% CrI: 4.4%, 5.9%). Although applied here to cetaceans in SEAK, the framework provides a flexible approach for estimating mortality and movement in populations that move among sampling areas. Article in Journal/Newspaper Humpback Whale Megaptera novaeangliae Alaska Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 69 11 1783 1797 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
We used a mechanistic movement model within a Bayesian framework to estimate survival, abundance, and rate of increase for a population of humpback whales ( Megaptera novaeangliae ) subject to a long-term photographic capture–recapture effort in southeastern Alaska, USA (SEAK). Multiple competing models were fitted that differed in movement, recapture rates, and observation error using deviance information criterion. The median annual survival probability in the selected model was 0.996 (95% central probability interval (CrI): 0.984, 0.999), which is among the highest reported for this species. Movement among areas was temporally dynamic, although whales exhibited high area fidelity (probability of returning to same area of ≥0.75) throughout the study. Median abundance was 1585 whales in 2008 (95% CrI: 1455, 1644). Incorporating an abundance estimate of 393 (95% confidence interval: 331, 455) whales from 1986, the median rate of increase was 5.1% (95% CrI: 4.4%, 5.9%). Although applied here to cetaceans in SEAK, the framework provides a flexible approach for estimating mortality and movement in populations that move among sampling areas. |
author2 |
Chen, Yong |
format |
Article in Journal/Newspaper |
author |
Hendrix, A.N. Straley, J. Gabriele, C.M. Gende, S.M. |
spellingShingle |
Hendrix, A.N. Straley, J. Gabriele, C.M. Gende, S.M. Bayesian estimation of humpback whale ( Megaptera novaeangliae) population abundance and movement patterns in southeastern Alaska |
author_facet |
Hendrix, A.N. Straley, J. Gabriele, C.M. Gende, S.M. |
author_sort |
Hendrix, A.N. |
title |
Bayesian estimation of humpback whale ( Megaptera novaeangliae) population abundance and movement patterns in southeastern Alaska |
title_short |
Bayesian estimation of humpback whale ( Megaptera novaeangliae) population abundance and movement patterns in southeastern Alaska |
title_full |
Bayesian estimation of humpback whale ( Megaptera novaeangliae) population abundance and movement patterns in southeastern Alaska |
title_fullStr |
Bayesian estimation of humpback whale ( Megaptera novaeangliae) population abundance and movement patterns in southeastern Alaska |
title_full_unstemmed |
Bayesian estimation of humpback whale ( Megaptera novaeangliae) population abundance and movement patterns in southeastern Alaska |
title_sort |
bayesian estimation of humpback whale ( megaptera novaeangliae) population abundance and movement patterns in southeastern alaska |
publisher |
Canadian Science Publishing |
publishDate |
2012 |
url |
http://dx.doi.org/10.1139/f2012-101 http://www.nrcresearchpress.com/doi/full-xml/10.1139/f2012-101 http://www.nrcresearchpress.com/doi/pdf/10.1139/f2012-101 |
genre |
Humpback Whale Megaptera novaeangliae Alaska |
genre_facet |
Humpback Whale Megaptera novaeangliae Alaska |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 69, issue 11, page 1783-1797 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f2012-101 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
69 |
container_issue |
11 |
container_start_page |
1783 |
op_container_end_page |
1797 |
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1799481367956815872 |