Estimation of abundance and population dynamics of the Antarctic blue whale in the Antarctic Ocean south of 60°S, from 70°E to 170°W
Abstract The Antarctic blue whale population size has decreased due to commercial whaling, and it is listed as endangered by the International Union for Conservation of Nature. Its population status has received widespread attention and the abundance of Antarctic blue whales has been estimated throu...
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crwiley:10.1111/mms.13006 2024-09-09T19:07:01+00:00 Estimation of abundance and population dynamics of the Antarctic blue whale in the Antarctic Ocean south of 60°S, from 70°E to 170°W Hamabe, Kohei Matsuoka, Koji Kitakado, Toshihide 2023 http://dx.doi.org/10.1111/mms.13006 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.13006 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mms.13006 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 39, issue 2, page 671-687 ISSN 0824-0469 1748-7692 journal-article 2023 crwiley https://doi.org/10.1111/mms.13006 2024-08-22T04:16:06Z Abstract The Antarctic blue whale population size has decreased due to commercial whaling, and it is listed as endangered by the International Union for Conservation of Nature. Its population status has received widespread attention and the abundance of Antarctic blue whales has been estimated through surveys conducted by international and national programs. This study estimated the abundance of Antarctic blue whales south of 60°S from 70°E to 170°W using data collected during Japanese national surveys. Furthermore, using this information and existing abundance estimates from the IDCR‐SOWER surveys conducted by the International Whaling Commission, we estimated and forecasted the population trajectory of the Antarctic blue whale since the beginning of its exploitation using Bayesian state‐space surplus production models. The abundance estimate for 2009 was 476, 95% CI [242, 972], corresponding to 0.8%, 95% CI [0.3, 1.9] of the prewhaling levels, and the intrinsic growth rate in this population was low at 0.042, 95% CI [0.009, 0.093]. This analysis suggests that the population size in this region is lower than that during prewhaling. The input of new abundance estimates in the future is expected to accurately estimate population dynamics compared with the current assessment. Article in Journal/Newspaper Antarc* Antarctic Antarctic Ocean Blue whale Wiley Online Library Antarctic Antarctic Ocean The Antarctic Marine Mammal Science 39 2 671 687 |
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Wiley Online Library |
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description |
Abstract The Antarctic blue whale population size has decreased due to commercial whaling, and it is listed as endangered by the International Union for Conservation of Nature. Its population status has received widespread attention and the abundance of Antarctic blue whales has been estimated through surveys conducted by international and national programs. This study estimated the abundance of Antarctic blue whales south of 60°S from 70°E to 170°W using data collected during Japanese national surveys. Furthermore, using this information and existing abundance estimates from the IDCR‐SOWER surveys conducted by the International Whaling Commission, we estimated and forecasted the population trajectory of the Antarctic blue whale since the beginning of its exploitation using Bayesian state‐space surplus production models. The abundance estimate for 2009 was 476, 95% CI [242, 972], corresponding to 0.8%, 95% CI [0.3, 1.9] of the prewhaling levels, and the intrinsic growth rate in this population was low at 0.042, 95% CI [0.009, 0.093]. This analysis suggests that the population size in this region is lower than that during prewhaling. The input of new abundance estimates in the future is expected to accurately estimate population dynamics compared with the current assessment. |
format |
Article in Journal/Newspaper |
author |
Hamabe, Kohei Matsuoka, Koji Kitakado, Toshihide |
spellingShingle |
Hamabe, Kohei Matsuoka, Koji Kitakado, Toshihide Estimation of abundance and population dynamics of the Antarctic blue whale in the Antarctic Ocean south of 60°S, from 70°E to 170°W |
author_facet |
Hamabe, Kohei Matsuoka, Koji Kitakado, Toshihide |
author_sort |
Hamabe, Kohei |
title |
Estimation of abundance and population dynamics of the Antarctic blue whale in the Antarctic Ocean south of 60°S, from 70°E to 170°W |
title_short |
Estimation of abundance and population dynamics of the Antarctic blue whale in the Antarctic Ocean south of 60°S, from 70°E to 170°W |
title_full |
Estimation of abundance and population dynamics of the Antarctic blue whale in the Antarctic Ocean south of 60°S, from 70°E to 170°W |
title_fullStr |
Estimation of abundance and population dynamics of the Antarctic blue whale in the Antarctic Ocean south of 60°S, from 70°E to 170°W |
title_full_unstemmed |
Estimation of abundance and population dynamics of the Antarctic blue whale in the Antarctic Ocean south of 60°S, from 70°E to 170°W |
title_sort |
estimation of abundance and population dynamics of the antarctic blue whale in the antarctic ocean south of 60°s, from 70°e to 170°w |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1111/mms.13006 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.13006 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mms.13006 |
geographic |
Antarctic Antarctic Ocean The Antarctic |
geographic_facet |
Antarctic Antarctic Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Ocean Blue whale |
genre_facet |
Antarc* Antarctic Antarctic Ocean Blue whale |
op_source |
Marine Mammal Science volume 39, issue 2, page 671-687 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/mms.13006 |
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Marine Mammal Science |
container_volume |
39 |
container_issue |
2 |
container_start_page |
671 |
op_container_end_page |
687 |
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1809821064023244800 |