Coastal polynyas: Winter oases for subadult southern elephant seals in East Antarctica
Antarctic coastal polynyas are regions of persistent open water and are thought to be key bio-physical features within the sea-ice zone. However, their use by the upper trophic levels of ecosystems remains unclear. A unique bio-physical dataset recorded by southern elephant seals reveals that East A...
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ftpubmed:oai:pubmedcentral.nih.gov:5816617 2023-05-15T13:41:36+02:00 Coastal polynyas: Winter oases for subadult southern elephant seals in East Antarctica Labrousse, Sara Williams, Guy Tamura, Takeshi Bestley, Sophie Sallée, Jean-Baptiste Fraser, Alexander D. Sumner, Michael Roquet, Fabien Heerah, Karine Picard, Baptiste Guinet, Christophe Harcourt, Robert McMahon, Clive Hindell, Mark A. Charrassin, Jean-Benoit 2018-02-16 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5816617/ http://www.ncbi.nlm.nih.gov/pubmed/29453356 https://doi.org/10.1038/s41598-018-21388-9 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5816617/ http://www.ncbi.nlm.nih.gov/pubmed/29453356 http://dx.doi.org/10.1038/s41598-018-21388-9 © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Article Text 2018 ftpubmed https://doi.org/10.1038/s41598-018-21388-9 2018-02-25T01:13:32Z Antarctic coastal polynyas are regions of persistent open water and are thought to be key bio-physical features within the sea-ice zone. However, their use by the upper trophic levels of ecosystems remains unclear. A unique bio-physical dataset recorded by southern elephant seals reveals that East Antarctic polynyas are a key winter foraging habitat for male seals. During their post-moult trips from Isles Kerguelen to the Antarctic continental shelf, a total of 18 out of 23 seals visited 9 different polynyas, spending on average 25 ± 20% (up to 75%) of their total trip time inside polynyas. Changes in seal foraging and diving behaviours are observed inside polynyas as compared to outside polynyas. Two polynya usages by seals are observed for the inactive and active polynya phases, pointing to different seasonal peaks in prey abundance. During the active polynya phase, we link seal foraging behaviour to changes in the physical stability of the water-column, which likely impact the seasonal biological dynamics within polynyas. Text Antarc* Antarctic Antarctica East Antarctica Elephant Seals Sea ice Southern Elephant Seals PubMed Central (PMC) Antarctic East Antarctica Kerguelen The Antarctic Scientific Reports 8 1 |
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Article Labrousse, Sara Williams, Guy Tamura, Takeshi Bestley, Sophie Sallée, Jean-Baptiste Fraser, Alexander D. Sumner, Michael Roquet, Fabien Heerah, Karine Picard, Baptiste Guinet, Christophe Harcourt, Robert McMahon, Clive Hindell, Mark A. Charrassin, Jean-Benoit Coastal polynyas: Winter oases for subadult southern elephant seals in East Antarctica |
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description |
Antarctic coastal polynyas are regions of persistent open water and are thought to be key bio-physical features within the sea-ice zone. However, their use by the upper trophic levels of ecosystems remains unclear. A unique bio-physical dataset recorded by southern elephant seals reveals that East Antarctic polynyas are a key winter foraging habitat for male seals. During their post-moult trips from Isles Kerguelen to the Antarctic continental shelf, a total of 18 out of 23 seals visited 9 different polynyas, spending on average 25 ± 20% (up to 75%) of their total trip time inside polynyas. Changes in seal foraging and diving behaviours are observed inside polynyas as compared to outside polynyas. Two polynya usages by seals are observed for the inactive and active polynya phases, pointing to different seasonal peaks in prey abundance. During the active polynya phase, we link seal foraging behaviour to changes in the physical stability of the water-column, which likely impact the seasonal biological dynamics within polynyas. |
format |
Text |
author |
Labrousse, Sara Williams, Guy Tamura, Takeshi Bestley, Sophie Sallée, Jean-Baptiste Fraser, Alexander D. Sumner, Michael Roquet, Fabien Heerah, Karine Picard, Baptiste Guinet, Christophe Harcourt, Robert McMahon, Clive Hindell, Mark A. Charrassin, Jean-Benoit |
author_facet |
Labrousse, Sara Williams, Guy Tamura, Takeshi Bestley, Sophie Sallée, Jean-Baptiste Fraser, Alexander D. Sumner, Michael Roquet, Fabien Heerah, Karine Picard, Baptiste Guinet, Christophe Harcourt, Robert McMahon, Clive Hindell, Mark A. Charrassin, Jean-Benoit |
author_sort |
Labrousse, Sara |
title |
Coastal polynyas: Winter oases for subadult southern elephant seals in East Antarctica |
title_short |
Coastal polynyas: Winter oases for subadult southern elephant seals in East Antarctica |
title_full |
Coastal polynyas: Winter oases for subadult southern elephant seals in East Antarctica |
title_fullStr |
Coastal polynyas: Winter oases for subadult southern elephant seals in East Antarctica |
title_full_unstemmed |
Coastal polynyas: Winter oases for subadult southern elephant seals in East Antarctica |
title_sort |
coastal polynyas: winter oases for subadult southern elephant seals in east antarctica |
publisher |
Nature Publishing Group UK |
publishDate |
2018 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5816617/ http://www.ncbi.nlm.nih.gov/pubmed/29453356 https://doi.org/10.1038/s41598-018-21388-9 |
geographic |
Antarctic East Antarctica Kerguelen The Antarctic |
geographic_facet |
Antarctic East Antarctica Kerguelen The Antarctic |
genre |
Antarc* Antarctic Antarctica East Antarctica Elephant Seals Sea ice Southern Elephant Seals |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Elephant Seals Sea ice Southern Elephant Seals |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5816617/ http://www.ncbi.nlm.nih.gov/pubmed/29453356 http://dx.doi.org/10.1038/s41598-018-21388-9 |
op_rights |
© The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-018-21388-9 |
container_title |
Scientific Reports |
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8 |
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1 |
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1766152827494727680 |