Seasonal variations in the call presence of bearded seals in relation to sea ice in the southern Chukchi Sea
The seasonal habitat use of bearded seals is important information in terms of conservation of this species. However, their distribution outside the breeding season has not been well documented. We investigated seasonal variations in the call occurrence of bearded seals by using passive acoustic mon...
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/79231 2023-05-15T15:09:48+02:00 Seasonal variations in the call presence of bearded seals in relation to sea ice in the southern Chukchi Sea Jimbo, Mina Mizuguchi, Daisuke Shirakawa, Hokuto Tsujii, Koki Fujiwara, Amane Miyashita, Kazushi Mitani, Yoko http://hdl.handle.net/2115/79231 https://doi.org/10.1007/s00300-019-02569-2 eng eng Springer http://hdl.handle.net/2115/79231 Polar biology, 42(10): 1953-1958 http://dx.doi.org/10.1007/s00300-019-02569-2 An acknowledgement in the following form should be included, together with a link to the published version on the publisher’s website: “This is a post-peer-review, pre-copyedit version of an article published in Polar biology. The final authenticated version is available online at: http://dx.doi.org/10.1007/s00300-019-02569-2”. Erignathus barbatus Passive acoustic monitoring Sea ice Vocal activity 468 article (author version) fthokunivhus https://doi.org/10.1007/s00300-019-02569-2 2022-11-18T01:05:43Z The seasonal habitat use of bearded seals is important information in terms of conservation of this species. However, their distribution outside the breeding season has not been well documented. We investigated seasonal variations in the call occurrence of bearded seals by using passive acoustic monitoring in the southern Chukchi Sea, which has some of the greatest benthic biomass in the Pacific sector of the Arctic Ocean. Underwater sounds were recorded between 2012 and 2015. Calls of bearded seals were detected from mid-September or early October to the end of each recording period (mid-May 2013, early March 2014, and mid-June 2015). Two peaks in call occurrence were noted; the first peak occurred during the open-water periods in November, and the second peak occurred during ice-covered periods. This suggest that bearded seals utilize the southern Chukchi Sea not only for the breeding site but also for the autumn foraging site. We could complement the information about the southward autumn migration pattern of bearded seals, and the southern Chukchi Sea was suggested as the south limit of bearded seals' autumn distribution. Additionally, their vocal activity during autumn in this site was suggested to have some role in social interaction. Our results indicated that the southern Chukchi Sea would be an important monitoring site for understanding the habitat use and the vocal activity of bearded seals, especially outside the breeding season. Article in Journal/Newspaper Arctic Arctic Ocean Chukchi Chukchi Sea Erignathus barbatus Polar Biology Sea ice Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Arctic Arctic Ocean Chukchi Sea Pacific Polar Biology 42 10 1953 1958 |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
Erignathus barbatus Passive acoustic monitoring Sea ice Vocal activity 468 |
spellingShingle |
Erignathus barbatus Passive acoustic monitoring Sea ice Vocal activity 468 Jimbo, Mina Mizuguchi, Daisuke Shirakawa, Hokuto Tsujii, Koki Fujiwara, Amane Miyashita, Kazushi Mitani, Yoko Seasonal variations in the call presence of bearded seals in relation to sea ice in the southern Chukchi Sea |
topic_facet |
Erignathus barbatus Passive acoustic monitoring Sea ice Vocal activity 468 |
description |
The seasonal habitat use of bearded seals is important information in terms of conservation of this species. However, their distribution outside the breeding season has not been well documented. We investigated seasonal variations in the call occurrence of bearded seals by using passive acoustic monitoring in the southern Chukchi Sea, which has some of the greatest benthic biomass in the Pacific sector of the Arctic Ocean. Underwater sounds were recorded between 2012 and 2015. Calls of bearded seals were detected from mid-September or early October to the end of each recording period (mid-May 2013, early March 2014, and mid-June 2015). Two peaks in call occurrence were noted; the first peak occurred during the open-water periods in November, and the second peak occurred during ice-covered periods. This suggest that bearded seals utilize the southern Chukchi Sea not only for the breeding site but also for the autumn foraging site. We could complement the information about the southward autumn migration pattern of bearded seals, and the southern Chukchi Sea was suggested as the south limit of bearded seals' autumn distribution. Additionally, their vocal activity during autumn in this site was suggested to have some role in social interaction. Our results indicated that the southern Chukchi Sea would be an important monitoring site for understanding the habitat use and the vocal activity of bearded seals, especially outside the breeding season. |
format |
Article in Journal/Newspaper |
author |
Jimbo, Mina Mizuguchi, Daisuke Shirakawa, Hokuto Tsujii, Koki Fujiwara, Amane Miyashita, Kazushi Mitani, Yoko |
author_facet |
Jimbo, Mina Mizuguchi, Daisuke Shirakawa, Hokuto Tsujii, Koki Fujiwara, Amane Miyashita, Kazushi Mitani, Yoko |
author_sort |
Jimbo, Mina |
title |
Seasonal variations in the call presence of bearded seals in relation to sea ice in the southern Chukchi Sea |
title_short |
Seasonal variations in the call presence of bearded seals in relation to sea ice in the southern Chukchi Sea |
title_full |
Seasonal variations in the call presence of bearded seals in relation to sea ice in the southern Chukchi Sea |
title_fullStr |
Seasonal variations in the call presence of bearded seals in relation to sea ice in the southern Chukchi Sea |
title_full_unstemmed |
Seasonal variations in the call presence of bearded seals in relation to sea ice in the southern Chukchi Sea |
title_sort |
seasonal variations in the call presence of bearded seals in relation to sea ice in the southern chukchi sea |
publisher |
Springer |
url |
http://hdl.handle.net/2115/79231 https://doi.org/10.1007/s00300-019-02569-2 |
geographic |
Arctic Arctic Ocean Chukchi Sea Pacific |
geographic_facet |
Arctic Arctic Ocean Chukchi Sea Pacific |
genre |
Arctic Arctic Ocean Chukchi Chukchi Sea Erignathus barbatus Polar Biology Sea ice |
genre_facet |
Arctic Arctic Ocean Chukchi Chukchi Sea Erignathus barbatus Polar Biology Sea ice |
op_relation |
http://hdl.handle.net/2115/79231 Polar biology, 42(10): 1953-1958 http://dx.doi.org/10.1007/s00300-019-02569-2 |
op_rights |
An acknowledgement in the following form should be included, together with a link to the published version on the publisher’s website: “This is a post-peer-review, pre-copyedit version of an article published in Polar biology. The final authenticated version is available online at: http://dx.doi.org/10.1007/s00300-019-02569-2”. |
op_doi |
https://doi.org/10.1007/s00300-019-02569-2 |
container_title |
Polar Biology |
container_volume |
42 |
container_issue |
10 |
container_start_page |
1953 |
op_container_end_page |
1958 |
_version_ |
1766340917589966848 |