Frozen verses: Antarctic minke whales ( Balaenoptera bonaerensis) call predominantly during austral winter
The recent identification of the bio-duck call as Antarctic minke whale (AMW) vocalization allows the use of passive acoustic monitoring to retrospectively investigate year-round spatial-temporal patterns in minke whale occurrence in ice-covered areas. Here, we present an analysis of AMW occurrence...
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Online Access: | http://dx.doi.org/10.1098/rsos.192112 https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.192112 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsos.192112 |
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crroyalsociety:10.1098/rsos.192112 2024-06-23T07:47:36+00:00 Frozen verses: Antarctic minke whales ( Balaenoptera bonaerensis) call predominantly during austral winter Filun, Diego Thomisch, Karolin Boebel, Olaf Brey, Thomas Širović, Ana Spiesecke, Stefanie Van Opzeeland, Ilse Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung Scholarship Asociacion Nacional de Investigacion y Desarrollo de Chile (ANID)- Deutscher Akademischer Austauschdienst 2020 http://dx.doi.org/10.1098/rsos.192112 https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.192112 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsos.192112 en eng The Royal Society http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/ Royal Society Open Science volume 7, issue 10, page 192112 ISSN 2054-5703 journal-article 2020 crroyalsociety https://doi.org/10.1098/rsos.192112 2024-06-10T04:15:06Z The recent identification of the bio-duck call as Antarctic minke whale (AMW) vocalization allows the use of passive acoustic monitoring to retrospectively investigate year-round spatial-temporal patterns in minke whale occurrence in ice-covered areas. Here, we present an analysis of AMW occurrence patterns based on a 9-year passive acoustic dataset (2008–2016) from 21 locations throughout the Atlantic sector of the Southern Ocean (Weddell Sea). AMWs were detected acoustically at all mooring locations from May to December, with the highest presence between August and November (bio-duck calls present at more than 80% of days). At the southernmost recording locations, the bio-duck call was present up to 10 months of the year. Substantial inter-annual variation in the seasonality of vocal activity correlated to variation in local ice concentration. Our analysis indicates that part of the AMW population stays in the Weddell Sea during austral winter. The period with the highest acoustic presence in the Weddell Sea (September–October) coincides with the timing of the breeding season of AMW in lower latitudes. The bio-duck call could therefore play a role in mating, although other behavioural functions of the call cannot be excluded to date. Article in Journal/Newspaper Antarc* Antarctic Antarctic Minke whale Balaenoptera bonaerensis minke whale Southern Ocean Weddell Sea ice covered areas The Royal Society Antarctic Austral Southern Ocean Weddell Weddell Sea Royal Society Open Science 7 10 192112 |
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Open Polar |
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The Royal Society |
op_collection_id |
crroyalsociety |
language |
English |
description |
The recent identification of the bio-duck call as Antarctic minke whale (AMW) vocalization allows the use of passive acoustic monitoring to retrospectively investigate year-round spatial-temporal patterns in minke whale occurrence in ice-covered areas. Here, we present an analysis of AMW occurrence patterns based on a 9-year passive acoustic dataset (2008–2016) from 21 locations throughout the Atlantic sector of the Southern Ocean (Weddell Sea). AMWs were detected acoustically at all mooring locations from May to December, with the highest presence between August and November (bio-duck calls present at more than 80% of days). At the southernmost recording locations, the bio-duck call was present up to 10 months of the year. Substantial inter-annual variation in the seasonality of vocal activity correlated to variation in local ice concentration. Our analysis indicates that part of the AMW population stays in the Weddell Sea during austral winter. The period with the highest acoustic presence in the Weddell Sea (September–October) coincides with the timing of the breeding season of AMW in lower latitudes. The bio-duck call could therefore play a role in mating, although other behavioural functions of the call cannot be excluded to date. |
author2 |
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung Scholarship Asociacion Nacional de Investigacion y Desarrollo de Chile (ANID)- Deutscher Akademischer Austauschdienst |
format |
Article in Journal/Newspaper |
author |
Filun, Diego Thomisch, Karolin Boebel, Olaf Brey, Thomas Širović, Ana Spiesecke, Stefanie Van Opzeeland, Ilse |
spellingShingle |
Filun, Diego Thomisch, Karolin Boebel, Olaf Brey, Thomas Širović, Ana Spiesecke, Stefanie Van Opzeeland, Ilse Frozen verses: Antarctic minke whales ( Balaenoptera bonaerensis) call predominantly during austral winter |
author_facet |
Filun, Diego Thomisch, Karolin Boebel, Olaf Brey, Thomas Širović, Ana Spiesecke, Stefanie Van Opzeeland, Ilse |
author_sort |
Filun, Diego |
title |
Frozen verses: Antarctic minke whales ( Balaenoptera bonaerensis) call predominantly during austral winter |
title_short |
Frozen verses: Antarctic minke whales ( Balaenoptera bonaerensis) call predominantly during austral winter |
title_full |
Frozen verses: Antarctic minke whales ( Balaenoptera bonaerensis) call predominantly during austral winter |
title_fullStr |
Frozen verses: Antarctic minke whales ( Balaenoptera bonaerensis) call predominantly during austral winter |
title_full_unstemmed |
Frozen verses: Antarctic minke whales ( Balaenoptera bonaerensis) call predominantly during austral winter |
title_sort |
frozen verses: antarctic minke whales ( balaenoptera bonaerensis) call predominantly during austral winter |
publisher |
The Royal Society |
publishDate |
2020 |
url |
http://dx.doi.org/10.1098/rsos.192112 https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.192112 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsos.192112 |
geographic |
Antarctic Austral Southern Ocean Weddell Weddell Sea |
geographic_facet |
Antarctic Austral Southern Ocean Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctic Minke whale Balaenoptera bonaerensis minke whale Southern Ocean Weddell Sea ice covered areas |
genre_facet |
Antarc* Antarctic Antarctic Minke whale Balaenoptera bonaerensis minke whale Southern Ocean Weddell Sea ice covered areas |
op_source |
Royal Society Open Science volume 7, issue 10, page 192112 ISSN 2054-5703 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1098/rsos.192112 |
container_title |
Royal Society Open Science |
container_volume |
7 |
container_issue |
10 |
container_start_page |
192112 |
_version_ |
1802651741599039488 |