The migration of fin whales into the southern Chukchi Sea as monitored with passive acoustics
Abstract Fin whales (Balaenoptera physalus) undergo seasonal migration in the Arctic Sea. Because their migration and distribution is likely affected by changes in global climate, we aimed to examine the migration timing of fin whales, and the relationship with prey availability within the oceanogra...
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Oxford University Press (OUP)
2016
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsv271 http://academic.oup.com/icesjms/article-pdf/73/8/2085/31230210/fsv271.pdf |
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croxfordunivpr:10.1093/icesjms/fsv271 2024-06-23T07:49:58+00:00 The migration of fin whales into the southern Chukchi Sea as monitored with passive acoustics Tsujii, Koki Otsuki, Mayuko Akamatsu, Tomonari Matsuo, Ikuo Amakasu, Kazuo Kitamura, Minoru Kikuchi, Takashi Miyashita, Kazushi Mitani, Yoko 2016 http://dx.doi.org/10.1093/icesjms/fsv271 http://academic.oup.com/icesjms/article-pdf/73/8/2085/31230210/fsv271.pdf en eng Oxford University Press (OUP) http://creativecommons.org/licenses/by/4.0/ ICES Journal of Marine Science volume 73, issue 8, page 2085-2092 ISSN 1095-9289 1054-3139 journal-article 2016 croxfordunivpr https://doi.org/10.1093/icesjms/fsv271 2024-06-11T04:17:17Z Abstract Fin whales (Balaenoptera physalus) undergo seasonal migration in the Arctic Sea. Because their migration and distribution is likely affected by changes in global climate, we aimed to examine the migration timing of fin whales, and the relationship with prey availability within the oceanographic environment of the Arctic Sea, using passive and active acoustic monitoring methods. Automatic Underwater Sound Monitoring Systems were deployed in the southern Chukchi Sea from July 2012 to 2014 to determine the acoustic presence of fin whales. Furthermore, water temperature and salinity were recorded by a fixed data logger. An Acoustic Zooplankton Fish Profiler was additionally deployed to estimate prey abundance through backscattering strength. Sea ice concentrations were obtained by remote sensing data. Fin whale calls were automatically detected using a custom-made software, and the per cent of half-hours containing calls were counted. Fin whale calls were detected from 4 August to 20 October 2012 (78 d) and 25 July to 1 November 2013 (100 d). The extended period of acoustic presence of fin whales during 2013 when compared with 2012 is likely related to a longer ice-free period during 2013. Furthermore, generalized linear model analyses showed that half-hour periods containing calls increased with a rise in water temperature and zooplankton abundance during the initial call presence period, while they decreased with a decrease in water temperature and salinity during the end of the call presence period. Our results suggest that the rise in water temperature and zooplankton abundance affect the timing of migration of fin whales in a way that is consistent with the expansion of their suitable habitats and the extension of their presence in the Arctic Sea. Article in Journal/Newspaper Arctic Balaenoptera physalus Chukchi Chukchi Sea Fin whale Sea ice Zooplankton Oxford University Press Arctic Chukchi Sea ICES Journal of Marine Science 73 8 2085 2092 |
institution |
Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
description |
Abstract Fin whales (Balaenoptera physalus) undergo seasonal migration in the Arctic Sea. Because their migration and distribution is likely affected by changes in global climate, we aimed to examine the migration timing of fin whales, and the relationship with prey availability within the oceanographic environment of the Arctic Sea, using passive and active acoustic monitoring methods. Automatic Underwater Sound Monitoring Systems were deployed in the southern Chukchi Sea from July 2012 to 2014 to determine the acoustic presence of fin whales. Furthermore, water temperature and salinity were recorded by a fixed data logger. An Acoustic Zooplankton Fish Profiler was additionally deployed to estimate prey abundance through backscattering strength. Sea ice concentrations were obtained by remote sensing data. Fin whale calls were automatically detected using a custom-made software, and the per cent of half-hours containing calls were counted. Fin whale calls were detected from 4 August to 20 October 2012 (78 d) and 25 July to 1 November 2013 (100 d). The extended period of acoustic presence of fin whales during 2013 when compared with 2012 is likely related to a longer ice-free period during 2013. Furthermore, generalized linear model analyses showed that half-hour periods containing calls increased with a rise in water temperature and zooplankton abundance during the initial call presence period, while they decreased with a decrease in water temperature and salinity during the end of the call presence period. Our results suggest that the rise in water temperature and zooplankton abundance affect the timing of migration of fin whales in a way that is consistent with the expansion of their suitable habitats and the extension of their presence in the Arctic Sea. |
format |
Article in Journal/Newspaper |
author |
Tsujii, Koki Otsuki, Mayuko Akamatsu, Tomonari Matsuo, Ikuo Amakasu, Kazuo Kitamura, Minoru Kikuchi, Takashi Miyashita, Kazushi Mitani, Yoko |
spellingShingle |
Tsujii, Koki Otsuki, Mayuko Akamatsu, Tomonari Matsuo, Ikuo Amakasu, Kazuo Kitamura, Minoru Kikuchi, Takashi Miyashita, Kazushi Mitani, Yoko The migration of fin whales into the southern Chukchi Sea as monitored with passive acoustics |
author_facet |
Tsujii, Koki Otsuki, Mayuko Akamatsu, Tomonari Matsuo, Ikuo Amakasu, Kazuo Kitamura, Minoru Kikuchi, Takashi Miyashita, Kazushi Mitani, Yoko |
author_sort |
Tsujii, Koki |
title |
The migration of fin whales into the southern Chukchi Sea as monitored with passive acoustics |
title_short |
The migration of fin whales into the southern Chukchi Sea as monitored with passive acoustics |
title_full |
The migration of fin whales into the southern Chukchi Sea as monitored with passive acoustics |
title_fullStr |
The migration of fin whales into the southern Chukchi Sea as monitored with passive acoustics |
title_full_unstemmed |
The migration of fin whales into the southern Chukchi Sea as monitored with passive acoustics |
title_sort |
migration of fin whales into the southern chukchi sea as monitored with passive acoustics |
publisher |
Oxford University Press (OUP) |
publishDate |
2016 |
url |
http://dx.doi.org/10.1093/icesjms/fsv271 http://academic.oup.com/icesjms/article-pdf/73/8/2085/31230210/fsv271.pdf |
geographic |
Arctic Chukchi Sea |
geographic_facet |
Arctic Chukchi Sea |
genre |
Arctic Balaenoptera physalus Chukchi Chukchi Sea Fin whale Sea ice Zooplankton |
genre_facet |
Arctic Balaenoptera physalus Chukchi Chukchi Sea Fin whale Sea ice Zooplankton |
op_source |
ICES Journal of Marine Science volume 73, issue 8, page 2085-2092 ISSN 1095-9289 1054-3139 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1093/icesjms/fsv271 |
container_title |
ICES Journal of Marine Science |
container_volume |
73 |
container_issue |
8 |
container_start_page |
2085 |
op_container_end_page |
2092 |
_version_ |
1802640707082518528 |