Large-scale spatial variabilities in the humpback whale acoustic presence in the Atlantic sector of the Southern Ocean
Southern Hemisphere humpback whales ( Megaptera novaeangliae ) inhabit a wide variety of ecosystems including both low- and high-latitude areas. Understanding the habitat selection of humpback whale populations is key for humpback whale stock management and general ecosystem management. In the Atlan...
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crroyalsociety:10.1098/rsos.201347 2024-09-15T17:57:25+00:00 Large-scale spatial variabilities in the humpback whale acoustic presence in the Atlantic sector of the Southern Ocean Schall, Elena Thomisch, Karolin Boebel, Olaf Gerlach, Gabriele Spiesecke, Stefanie Van Opzeeland, Ilse AWI 2020 http://dx.doi.org/10.1098/rsos.201347 https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.201347 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsos.201347 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 12, page 201347 ISSN 2054-5703 journal-article 2020 crroyalsociety https://doi.org/10.1098/rsos.201347 2024-08-12T04:27:45Z Southern Hemisphere humpback whales ( Megaptera novaeangliae ) inhabit a wide variety of ecosystems including both low- and high-latitude areas. Understanding the habitat selection of humpback whale populations is key for humpback whale stock management and general ecosystem management. In the Atlantic sector of the Southern Ocean ( ASSO ), the investigation of baleen whale distribution by sighting surveys is temporally restricted to the austral summer. The implementation of autonomous passive acoustic monitoring, in turn, allows the study of vocal baleen whales year-round. This study describes the results of analysing passive acoustic data spanning 12 recording positions throughout the ASSO applying a combination of automatic and manual analysis methods to register humpback whale acoustic activity. Humpback whales were present at nine recording positions with higher acoustic activities towards lower latitudes and the eastern and western edges of the ASSO . During all months, except December (the month with the fewest recordings), humpback whale acoustic activity was registered in the ASSO . The acoustic presence of humpback whales at various locations in the ASSO confirms previous observations that part of the population remains in high-latitude waters beyond austral summer, presumably to feed. The spatial and temporal extent of humpback whale presence in the ASSO suggests that this area may be used by multiple humpback whale breeding populations as a feeding ground. Article in Journal/Newspaper baleen whale baleen whales Humpback Whale Megaptera novaeangliae Southern Ocean The Royal Society Royal Society Open Science 7 12 201347 |
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Open Polar |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
Southern Hemisphere humpback whales ( Megaptera novaeangliae ) inhabit a wide variety of ecosystems including both low- and high-latitude areas. Understanding the habitat selection of humpback whale populations is key for humpback whale stock management and general ecosystem management. In the Atlantic sector of the Southern Ocean ( ASSO ), the investigation of baleen whale distribution by sighting surveys is temporally restricted to the austral summer. The implementation of autonomous passive acoustic monitoring, in turn, allows the study of vocal baleen whales year-round. This study describes the results of analysing passive acoustic data spanning 12 recording positions throughout the ASSO applying a combination of automatic and manual analysis methods to register humpback whale acoustic activity. Humpback whales were present at nine recording positions with higher acoustic activities towards lower latitudes and the eastern and western edges of the ASSO . During all months, except December (the month with the fewest recordings), humpback whale acoustic activity was registered in the ASSO . The acoustic presence of humpback whales at various locations in the ASSO confirms previous observations that part of the population remains in high-latitude waters beyond austral summer, presumably to feed. The spatial and temporal extent of humpback whale presence in the ASSO suggests that this area may be used by multiple humpback whale breeding populations as a feeding ground. |
author2 |
AWI |
format |
Article in Journal/Newspaper |
author |
Schall, Elena Thomisch, Karolin Boebel, Olaf Gerlach, Gabriele Spiesecke, Stefanie Van Opzeeland, Ilse |
spellingShingle |
Schall, Elena Thomisch, Karolin Boebel, Olaf Gerlach, Gabriele Spiesecke, Stefanie Van Opzeeland, Ilse Large-scale spatial variabilities in the humpback whale acoustic presence in the Atlantic sector of the Southern Ocean |
author_facet |
Schall, Elena Thomisch, Karolin Boebel, Olaf Gerlach, Gabriele Spiesecke, Stefanie Van Opzeeland, Ilse |
author_sort |
Schall, Elena |
title |
Large-scale spatial variabilities in the humpback whale acoustic presence in the Atlantic sector of the Southern Ocean |
title_short |
Large-scale spatial variabilities in the humpback whale acoustic presence in the Atlantic sector of the Southern Ocean |
title_full |
Large-scale spatial variabilities in the humpback whale acoustic presence in the Atlantic sector of the Southern Ocean |
title_fullStr |
Large-scale spatial variabilities in the humpback whale acoustic presence in the Atlantic sector of the Southern Ocean |
title_full_unstemmed |
Large-scale spatial variabilities in the humpback whale acoustic presence in the Atlantic sector of the Southern Ocean |
title_sort |
large-scale spatial variabilities in the humpback whale acoustic presence in the atlantic sector of the southern ocean |
publisher |
The Royal Society |
publishDate |
2020 |
url |
http://dx.doi.org/10.1098/rsos.201347 https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.201347 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsos.201347 |
genre |
baleen whale baleen whales Humpback Whale Megaptera novaeangliae Southern Ocean |
genre_facet |
baleen whale baleen whales Humpback Whale Megaptera novaeangliae Southern Ocean |
op_source |
Royal Society Open Science volume 7, issue 12, page 201347 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.201347 |
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Royal Society Open Science |
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7 |
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12 |
container_start_page |
201347 |
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1810433569980416000 |