Seasonal and Diel Vocalization Patterns of Antarctic Blue Whale (Balaenoptera musculus intermedia) in the Southern Indian Ocean: A Multi-Year and Multi-Site Study.
Passive acoustic monitoring is an efficient way to provide insights on the ecology of large whales. This approach allows for long-term and species-specific monitoring over large areas. In this study, we examined six years (2010 to 2015) of continuous acoustic recordings at up to seven different loca...
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ftdoajarticles:oai:doaj.org/article:f91d54190df44dafa25d770e06fe2a16 2023-05-15T13:59:22+02:00 Seasonal and Diel Vocalization Patterns of Antarctic Blue Whale (Balaenoptera musculus intermedia) in the Southern Indian Ocean: A Multi-Year and Multi-Site Study. Emmanuelle C Leroy Flore Samaran Julien Bonnel Jean-Yves Royer 2016-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0163587 https://doaj.org/article/f91d54190df44dafa25d770e06fe2a16 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC5102468?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0163587 https://doaj.org/article/f91d54190df44dafa25d770e06fe2a16 PLoS ONE, Vol 11, Iss 11, p e0163587 (2016) Medicine R Science Q article 2016 ftdoajarticles https://doi.org/10.1371/journal.pone.0163587 2022-12-31T10:27:16Z Passive acoustic monitoring is an efficient way to provide insights on the ecology of large whales. This approach allows for long-term and species-specific monitoring over large areas. In this study, we examined six years (2010 to 2015) of continuous acoustic recordings at up to seven different locations in the Central and Southern Indian Basin to assess the peak periods of presence, seasonality and migration movements of Antarctic blue whales (Balaenoptera musculus intermedia). An automated method is used to detect the Antarctic blue whale stereotyped call, known as Z-call. Detection results are analyzed in terms of distribution, seasonal presence and diel pattern of emission at each site. Z-calls are detected year-round at each site, except for one located in the equatorial Indian Ocean, and display highly seasonal distribution. This seasonality is stable across years for every site, but varies between sites. Z-calls are mainly detected during autumn and spring at the subantarctic locations, suggesting that these sites are on the Antarctic blue whale migration routes, and mostly during winter at the subtropical sites. In addition to these seasonal trends, there is a significant diel pattern in Z-call emission, with more Z-calls in daytime than in nighttime. This diel pattern may be related to the blue whale feeding ecology. Article in Journal/Newspaper Antarc* Antarctic Balaenoptera musculus Blue whale Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Indian PLOS ONE 11 11 e0163587 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
Medicine R Science Q |
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Medicine R Science Q Emmanuelle C Leroy Flore Samaran Julien Bonnel Jean-Yves Royer Seasonal and Diel Vocalization Patterns of Antarctic Blue Whale (Balaenoptera musculus intermedia) in the Southern Indian Ocean: A Multi-Year and Multi-Site Study. |
topic_facet |
Medicine R Science Q |
description |
Passive acoustic monitoring is an efficient way to provide insights on the ecology of large whales. This approach allows for long-term and species-specific monitoring over large areas. In this study, we examined six years (2010 to 2015) of continuous acoustic recordings at up to seven different locations in the Central and Southern Indian Basin to assess the peak periods of presence, seasonality and migration movements of Antarctic blue whales (Balaenoptera musculus intermedia). An automated method is used to detect the Antarctic blue whale stereotyped call, known as Z-call. Detection results are analyzed in terms of distribution, seasonal presence and diel pattern of emission at each site. Z-calls are detected year-round at each site, except for one located in the equatorial Indian Ocean, and display highly seasonal distribution. This seasonality is stable across years for every site, but varies between sites. Z-calls are mainly detected during autumn and spring at the subantarctic locations, suggesting that these sites are on the Antarctic blue whale migration routes, and mostly during winter at the subtropical sites. In addition to these seasonal trends, there is a significant diel pattern in Z-call emission, with more Z-calls in daytime than in nighttime. This diel pattern may be related to the blue whale feeding ecology. |
format |
Article in Journal/Newspaper |
author |
Emmanuelle C Leroy Flore Samaran Julien Bonnel Jean-Yves Royer |
author_facet |
Emmanuelle C Leroy Flore Samaran Julien Bonnel Jean-Yves Royer |
author_sort |
Emmanuelle C Leroy |
title |
Seasonal and Diel Vocalization Patterns of Antarctic Blue Whale (Balaenoptera musculus intermedia) in the Southern Indian Ocean: A Multi-Year and Multi-Site Study. |
title_short |
Seasonal and Diel Vocalization Patterns of Antarctic Blue Whale (Balaenoptera musculus intermedia) in the Southern Indian Ocean: A Multi-Year and Multi-Site Study. |
title_full |
Seasonal and Diel Vocalization Patterns of Antarctic Blue Whale (Balaenoptera musculus intermedia) in the Southern Indian Ocean: A Multi-Year and Multi-Site Study. |
title_fullStr |
Seasonal and Diel Vocalization Patterns of Antarctic Blue Whale (Balaenoptera musculus intermedia) in the Southern Indian Ocean: A Multi-Year and Multi-Site Study. |
title_full_unstemmed |
Seasonal and Diel Vocalization Patterns of Antarctic Blue Whale (Balaenoptera musculus intermedia) in the Southern Indian Ocean: A Multi-Year and Multi-Site Study. |
title_sort |
seasonal and diel vocalization patterns of antarctic blue whale (balaenoptera musculus intermedia) in the southern indian ocean: a multi-year and multi-site study. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2016 |
url |
https://doi.org/10.1371/journal.pone.0163587 https://doaj.org/article/f91d54190df44dafa25d770e06fe2a16 |
geographic |
Antarctic The Antarctic Indian |
geographic_facet |
Antarctic The Antarctic Indian |
genre |
Antarc* Antarctic Balaenoptera musculus Blue whale |
genre_facet |
Antarc* Antarctic Balaenoptera musculus Blue whale |
op_source |
PLoS ONE, Vol 11, Iss 11, p e0163587 (2016) |
op_relation |
http://europepmc.org/articles/PMC5102468?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0163587 https://doaj.org/article/f91d54190df44dafa25d770e06fe2a16 |
op_doi |
https://doi.org/10.1371/journal.pone.0163587 |
container_title |
PLOS ONE |
container_volume |
11 |
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11 |
container_start_page |
e0163587 |
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