Spatio-temporal patterns in Antarctic minke whale (Balaenoptera bonaerensis) vocal behaviour in the Weddell Sea
Antarctic minke whales (AMW) have a circum-antarctic distribution and are known to occur in both open and ice-covered waters of the Southern Ocean (SO). They are a pagophilic species and are regularly observed in heavily sea-ice covered areas. Because of this, current knowledge about Antarctic minke...
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Universität Bremen
2022
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ftsubbremen:oai:media.suub.uni-bremen.de:Publications/elib/6222 2023-05-15T13:42:31+02:00 Spatio-temporal patterns in Antarctic minke whale (Balaenoptera bonaerensis) vocal behaviour in the Weddell Sea Filun, Diego Brey, Thomas Van Opzeeland, Ilse Širović, Ana Hagen, Wilhelm 2022-03-16 application/pdf https://media.suub.uni-bremen.de/handle/elib/6222 https://doi.org/10.26092/elib/1784 https://nbn-resolving.org/urn:nbn:de:gbv:46-elib62225 eng eng Universität Bremen Fachbereich 02: Biologie/Chemie (FB 02) https://media.suub.uni-bremen.de/handle/elib/6222 https://doi.org/10.26092/elib/1784 doi:10.26092/elib/1784 urn:nbn:de:gbv:46-elib62225 info:eu-repo/semantics/openAccess CC BY 4.0 (Attribution) https://creativecommons.org/licenses/by/4.0/ CC-BY Antarctic Bioacoustics marine mammals Weddell Sea 570 570 Life sciences biology ddc:570 Dissertation doctoralThesis 2022 ftsubbremen https://doi.org/10.26092/elib/1784 2022-11-09T07:10:28Z Antarctic minke whales (AMW) have a circum-antarctic distribution and are known to occur in both open and ice-covered waters of the Southern Ocean (SO). They are a pagophilic species and are regularly observed in heavily sea-ice covered areas. Because of this, current knowledge about Antarctic minke whales is scarce and limited to austral summer and ice-free regions where the majority of visual survey data have been collected. Hence, very little is known on their winter distribution in high latitude waters and to what extent the wintering individuals that are occasionally observed in Antarctic waters represent single observations or a structurally present behavioral trait of the species. Likewise, AMW population structure is poorly known. As most baleen whale species, AMWs are known to undertake annual migrations between high latitude feeding areas and low latitude breeding areas. However, available data to date suggest that for AMWs, migrations seem more protracted and complex than in other baleen whale species. The recent identification of vocalizations produced by AMWs (“bio-duck call”) now makes it possible to also use passive acoustic technology to study occurrence patterns and behavior. Passive acoustic monitoring (PAM) offers a versatile technology with which long-term archival data can be collected on sound-producing species using autonomous recording units. Acoustic observation has the additional advantages that it can continue data collection independent of light conditions and under poor weather conditions. Furthermore, it can monitor large areas at the same time, since it collects data omnidirectionally, and it can collect data over extended periods (i.e., multi-year time scales) through the use of autonomous devices. In the scope of this doctoral thesis, I analysed passive acoustic data from high and low latitudes collected in the Atlantic Ocean sector of the Southern Ocean (Weddell Sea) and southern Atlantic Ocean, to investigate spatio-temporal patterns in the acoustic presence and vocal behaviour ... Doctoral or Postdoctoral Thesis Antarc* Antarctic Antarctic Minke whale Balaenoptera bonaerensis baleen whale minke whale Sea ice Southern Ocean Weddell Sea ice covered areas ice covered waters Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen) Antarctic Austral Southern Ocean Weddell Weddell Sea |
institution |
Open Polar |
collection |
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen) |
op_collection_id |
ftsubbremen |
language |
English |
topic |
Antarctic Bioacoustics marine mammals Weddell Sea 570 570 Life sciences biology ddc:570 |
spellingShingle |
Antarctic Bioacoustics marine mammals Weddell Sea 570 570 Life sciences biology ddc:570 Filun, Diego Spatio-temporal patterns in Antarctic minke whale (Balaenoptera bonaerensis) vocal behaviour in the Weddell Sea |
topic_facet |
Antarctic Bioacoustics marine mammals Weddell Sea 570 570 Life sciences biology ddc:570 |
description |
Antarctic minke whales (AMW) have a circum-antarctic distribution and are known to occur in both open and ice-covered waters of the Southern Ocean (SO). They are a pagophilic species and are regularly observed in heavily sea-ice covered areas. Because of this, current knowledge about Antarctic minke whales is scarce and limited to austral summer and ice-free regions where the majority of visual survey data have been collected. Hence, very little is known on their winter distribution in high latitude waters and to what extent the wintering individuals that are occasionally observed in Antarctic waters represent single observations or a structurally present behavioral trait of the species. Likewise, AMW population structure is poorly known. As most baleen whale species, AMWs are known to undertake annual migrations between high latitude feeding areas and low latitude breeding areas. However, available data to date suggest that for AMWs, migrations seem more protracted and complex than in other baleen whale species. The recent identification of vocalizations produced by AMWs (“bio-duck call”) now makes it possible to also use passive acoustic technology to study occurrence patterns and behavior. Passive acoustic monitoring (PAM) offers a versatile technology with which long-term archival data can be collected on sound-producing species using autonomous recording units. Acoustic observation has the additional advantages that it can continue data collection independent of light conditions and under poor weather conditions. Furthermore, it can monitor large areas at the same time, since it collects data omnidirectionally, and it can collect data over extended periods (i.e., multi-year time scales) through the use of autonomous devices. In the scope of this doctoral thesis, I analysed passive acoustic data from high and low latitudes collected in the Atlantic Ocean sector of the Southern Ocean (Weddell Sea) and southern Atlantic Ocean, to investigate spatio-temporal patterns in the acoustic presence and vocal behaviour ... |
author2 |
Brey, Thomas Van Opzeeland, Ilse Širović, Ana Hagen, Wilhelm |
format |
Doctoral or Postdoctoral Thesis |
author |
Filun, Diego |
author_facet |
Filun, Diego |
author_sort |
Filun, Diego |
title |
Spatio-temporal patterns in Antarctic minke whale (Balaenoptera bonaerensis) vocal behaviour in the Weddell Sea |
title_short |
Spatio-temporal patterns in Antarctic minke whale (Balaenoptera bonaerensis) vocal behaviour in the Weddell Sea |
title_full |
Spatio-temporal patterns in Antarctic minke whale (Balaenoptera bonaerensis) vocal behaviour in the Weddell Sea |
title_fullStr |
Spatio-temporal patterns in Antarctic minke whale (Balaenoptera bonaerensis) vocal behaviour in the Weddell Sea |
title_full_unstemmed |
Spatio-temporal patterns in Antarctic minke whale (Balaenoptera bonaerensis) vocal behaviour in the Weddell Sea |
title_sort |
spatio-temporal patterns in antarctic minke whale (balaenoptera bonaerensis) vocal behaviour in the weddell sea |
publisher |
Universität Bremen |
publishDate |
2022 |
url |
https://media.suub.uni-bremen.de/handle/elib/6222 https://doi.org/10.26092/elib/1784 https://nbn-resolving.org/urn:nbn:de:gbv:46-elib62225 |
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 baleen whale minke whale Sea ice Southern Ocean Weddell Sea ice covered areas ice covered waters |
genre_facet |
Antarc* Antarctic Antarctic Minke whale Balaenoptera bonaerensis baleen whale minke whale Sea ice Southern Ocean Weddell Sea ice covered areas ice covered waters |
op_relation |
https://media.suub.uni-bremen.de/handle/elib/6222 https://doi.org/10.26092/elib/1784 doi:10.26092/elib/1784 urn:nbn:de:gbv:46-elib62225 |
op_rights |
info:eu-repo/semantics/openAccess CC BY 4.0 (Attribution) https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.26092/elib/1784 |
_version_ |
1766168802710519808 |