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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Online Access: | http://nora.nerc.ac.uk/id/eprint/519368/ https://nora.nerc.ac.uk/id/eprint/519368/1/Labrousse.pdf https://doi.org/10.1038/s41598-018-21388-9 |
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ftnerc:oai:nora.nerc.ac.uk:519368 2023-05-15T13:49:34+02:00 Coastal polynyas: Winter oases for subadult southern elephant seals in East Antarctica Labrousse, Sara Williams, Guy Tamura, Takeshi Bestley, Sophie Sallee, 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 text http://nora.nerc.ac.uk/id/eprint/519368/ https://nora.nerc.ac.uk/id/eprint/519368/1/Labrousse.pdf https://doi.org/10.1038/s41598-018-21388-9 en eng Springer Nature https://nora.nerc.ac.uk/id/eprint/519368/1/Labrousse.pdf Labrousse, Sara; Williams, Guy; Tamura, Takeshi; Bestley, Sophie; Sallee, 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 Coastal polynyas: Winter oases for subadult southern elephant seals in East Antarctica. Scientific Reports, 8 (1), 3183. 15, pp. https://doi.org/10.1038/s41598-018-21388-9 <https://doi.org/10.1038/s41598-018-21388-9> cc_by_4 CC-BY Publication - Article PeerReviewed 2018 ftnerc https://doi.org/10.1038/s41598-018-21388-9 2023-02-04T19:46:10Z 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. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Elephant Seals Sea ice Southern Elephant Seals Natural Environment Research Council: NERC Open Research Archive Antarctic East Antarctica Kerguelen The Antarctic Scientific Reports 8 1 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
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 |
Article in Journal/Newspaper |
author |
Labrousse, Sara Williams, Guy Tamura, Takeshi Bestley, Sophie Sallee, 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 |
spellingShingle |
Labrousse, Sara Williams, Guy Tamura, Takeshi Bestley, Sophie Sallee, 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 |
author_facet |
Labrousse, Sara Williams, Guy Tamura, Takeshi Bestley, Sophie Sallee, 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 |
Springer Nature |
publishDate |
2018 |
url |
http://nora.nerc.ac.uk/id/eprint/519368/ https://nora.nerc.ac.uk/id/eprint/519368/1/Labrousse.pdf 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 |
https://nora.nerc.ac.uk/id/eprint/519368/1/Labrousse.pdf Labrousse, Sara; Williams, Guy; Tamura, Takeshi; Bestley, Sophie; Sallee, 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 Coastal polynyas: Winter oases for subadult southern elephant seals in East Antarctica. Scientific Reports, 8 (1), 3183. 15, pp. https://doi.org/10.1038/s41598-018-21388-9 <https://doi.org/10.1038/s41598-018-21388-9> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-018-21388-9 |
container_title |
Scientific Reports |
container_volume |
8 |
container_issue |
1 |
_version_ |
1766251746450997248 |