Weddell seal behaviour during an exceptional oceanographic event in the Filchner-Ronne Ice Shelf in 2017
Abstract Rapid and regionally contrasting climate changes have been observed around Antarctica. However, our understanding of the impact of these changes on ecosystems remains limited, and there is an urgent need to better identify habitats of Antarctic species. The Weddell seal ( Leptonychotes wedd...
Published in: | Antarctic Science |
---|---|
Main Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
2021
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s0954102021000092 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102021000092 |
id |
crcambridgeupr:10.1017/s0954102021000092 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/s0954102021000092 2024-09-09T19:10:17+00:00 Weddell seal behaviour during an exceptional oceanographic event in the Filchner-Ronne Ice Shelf in 2017 Labrousse, Sara Ryan, Svenja Roquet, Fabien Picard, Baptiste McMahon, Clive R. Harcourt, Robert Hindell, Mark Le Goff, Hervé Lourenco, Antonio David, Yves Sallée, Jean-Baptiste Charrassin, Jean-Benoit 2021 http://dx.doi.org/10.1017/s0954102021000092 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102021000092 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Antarctic Science volume 33, issue 3, page 252-264 ISSN 0954-1020 1365-2079 journal-article 2021 crcambridgeupr https://doi.org/10.1017/s0954102021000092 2024-06-19T04:04:22Z Abstract Rapid and regionally contrasting climate changes have been observed around Antarctica. However, our understanding of the impact of these changes on ecosystems remains limited, and there is an urgent need to better identify habitats of Antarctic species. The Weddell seal ( Leptonychotes weddellii ) is a circumpolar mesopredator and an indicative species of Antarctic marine communities. It has been extensively studied in the western Ross Sea and East Antarctica, and an understanding of its ecology in the Weddell Sea in the wintertime is emerging. We documented the behavioural response(s) of four Weddell seals from February to June in 2017 in the Filchner-Ronne Ice Shelf region and related these to unusual oceanographic conditions in 2017. Unexpectedly, we found that Weddell seals had the longest foraging effort within the outflow of Ice Shelf Water or at its turbulent boundary. They also foraged on the eastern side of the trough from April to June within the Modified Warm Deep Water and seem to take advantage of the unusual conditions of persistent inflow of warm waters through the winter. Linking animal behavioural responses to oceanographic conditions is informative for quantifying rarely recorded events and provides great insight into how predators may respond to changing conditions. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Antarctica East Antarctica Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Ice Shelf Ronne Ice Shelf Ross Sea Weddell Sea Weddell Seal Weddell Seals Cambridge University Press Antarctic Weddell Sea East Antarctica Ross Sea Weddell Ronne Ice Shelf ENVELOPE(-61.000,-61.000,-78.500,-78.500) Antarctic Science 33 3 252 264 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract Rapid and regionally contrasting climate changes have been observed around Antarctica. However, our understanding of the impact of these changes on ecosystems remains limited, and there is an urgent need to better identify habitats of Antarctic species. The Weddell seal ( Leptonychotes weddellii ) is a circumpolar mesopredator and an indicative species of Antarctic marine communities. It has been extensively studied in the western Ross Sea and East Antarctica, and an understanding of its ecology in the Weddell Sea in the wintertime is emerging. We documented the behavioural response(s) of four Weddell seals from February to June in 2017 in the Filchner-Ronne Ice Shelf region and related these to unusual oceanographic conditions in 2017. Unexpectedly, we found that Weddell seals had the longest foraging effort within the outflow of Ice Shelf Water or at its turbulent boundary. They also foraged on the eastern side of the trough from April to June within the Modified Warm Deep Water and seem to take advantage of the unusual conditions of persistent inflow of warm waters through the winter. Linking animal behavioural responses to oceanographic conditions is informative for quantifying rarely recorded events and provides great insight into how predators may respond to changing conditions. |
format |
Article in Journal/Newspaper |
author |
Labrousse, Sara Ryan, Svenja Roquet, Fabien Picard, Baptiste McMahon, Clive R. Harcourt, Robert Hindell, Mark Le Goff, Hervé Lourenco, Antonio David, Yves Sallée, Jean-Baptiste Charrassin, Jean-Benoit |
spellingShingle |
Labrousse, Sara Ryan, Svenja Roquet, Fabien Picard, Baptiste McMahon, Clive R. Harcourt, Robert Hindell, Mark Le Goff, Hervé Lourenco, Antonio David, Yves Sallée, Jean-Baptiste Charrassin, Jean-Benoit Weddell seal behaviour during an exceptional oceanographic event in the Filchner-Ronne Ice Shelf in 2017 |
author_facet |
Labrousse, Sara Ryan, Svenja Roquet, Fabien Picard, Baptiste McMahon, Clive R. Harcourt, Robert Hindell, Mark Le Goff, Hervé Lourenco, Antonio David, Yves Sallée, Jean-Baptiste Charrassin, Jean-Benoit |
author_sort |
Labrousse, Sara |
title |
Weddell seal behaviour during an exceptional oceanographic event in the Filchner-Ronne Ice Shelf in 2017 |
title_short |
Weddell seal behaviour during an exceptional oceanographic event in the Filchner-Ronne Ice Shelf in 2017 |
title_full |
Weddell seal behaviour during an exceptional oceanographic event in the Filchner-Ronne Ice Shelf in 2017 |
title_fullStr |
Weddell seal behaviour during an exceptional oceanographic event in the Filchner-Ronne Ice Shelf in 2017 |
title_full_unstemmed |
Weddell seal behaviour during an exceptional oceanographic event in the Filchner-Ronne Ice Shelf in 2017 |
title_sort |
weddell seal behaviour during an exceptional oceanographic event in the filchner-ronne ice shelf in 2017 |
publisher |
Cambridge University Press (CUP) |
publishDate |
2021 |
url |
http://dx.doi.org/10.1017/s0954102021000092 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102021000092 |
long_lat |
ENVELOPE(-61.000,-61.000,-78.500,-78.500) |
geographic |
Antarctic Weddell Sea East Antarctica Ross Sea Weddell Ronne Ice Shelf |
geographic_facet |
Antarctic Weddell Sea East Antarctica Ross Sea Weddell Ronne Ice Shelf |
genre |
Antarc* Antarctic Antarctic Science Antarctica East Antarctica Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Ice Shelf Ronne Ice Shelf Ross Sea Weddell Sea Weddell Seal Weddell Seals |
genre_facet |
Antarc* Antarctic Antarctic Science Antarctica East Antarctica Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Ice Shelf Ronne Ice Shelf Ross Sea Weddell Sea Weddell Seal Weddell Seals |
op_source |
Antarctic Science volume 33, issue 3, page 252-264 ISSN 0954-1020 1365-2079 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/s0954102021000092 |
container_title |
Antarctic Science |
container_volume |
33 |
container_issue |
3 |
container_start_page |
252 |
op_container_end_page |
264 |
_version_ |
1809825085337370624 |