Under the sea ice: Exploring the relationship between sea ice and the foraging behaviour of southern elephant seals in East Antarctica
International audience Investigating ecological relationships between predators and their environment is essential to understandthe response of marine ecosystems to climate variability and change. This is particularly true inpolar regions, where sea ice (a sensitive climate variable) plays a crucial...
Published in: | Progress in Oceanography |
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Main Authors: | , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2017
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Subjects: | |
Online Access: | https://hal.archives-ouvertes.fr/hal-01538931 https://doi.org/10.1016/j.pocean.2017.05.014 |
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ftccsdartic:oai:HAL:hal-01538931v1 |
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institution |
Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Labrousse, Sara Sallée, Jean-Baptiste Fraser, Alexander D. Massom, Robert A. Reid, Phillip, Sumner, Michael Guinet, Christophe Harcourt, Robert G. Mcmahon, Clive R. Bailleul, Frédéric Hindell, Mark A. Charrassin, Jean-Benoît Under the sea ice: Exploring the relationship between sea ice and the foraging behaviour of southern elephant seals in East Antarctica |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience Investigating ecological relationships between predators and their environment is essential to understandthe response of marine ecosystems to climate variability and change. This is particularly true inpolar regions, where sea ice (a sensitive climate variable) plays a crucial yet highly dynamic and variablerole in how it influences the whole marine ecosystem, from phytoplankton to top predators. For mesopredatorssuch as seals, sea ice both supports a rich (under-ice) food resource, access to which dependson local to regional coverage and conditions. Here, we investigate sex-specific relationships between theforaging strategies of southern elephant seals (Mirounga leonina) in winter and spatio-temporal variabilityin sea ice concentration (SIC) and coverage in East Antarctica. We satellite-tracked 46 individualsundertaking post-moult trips in winter from Kerguelen Islands to the peri-Antarctic shelf between2004 and 2014. These data indicate distinct general patterns of sea ice usage: while females tended tofollow the sea ice edge as it extended northward, the males remained on the continental shelf despiteincreasing sea ice. Seal hunting time, a proxy of foraging activity inferred from the diving behaviour,was longer for females in late autumn in the outer part of the pack ice, 150–370 km south of the iceedge. Within persistent regions of compact sea ice, females had a longer foraging activity (i) in the highestsea ice concentration at their position, but (ii) their foraging activity was longer when there were morepatches of low concentration sea ice around their position (either in time or in space; 30 days & 50 km).The high spatio-temporal variability of sea ice around female positions is probably a key factor allowingthem to exploit these concentrated patches. Despite lack of information on prey availability, females mayexploit mesopelagic finfishes and squids that concentrate near the ice-water interface or within the watercolumn (from diurnal vertical migration) in the pack ice ... |
author2 |
Institute for Marine and Antarctic Studies Horbat (IMAS) University of Tasmania Hobart, Australia (UTAS) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Processus de couplage à Petite Echelle, Ecosystèmes et Prédateurs Supérieurs (PEPS) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) British Antarctic Survey (BAS) Natural Environment Research Council (NERC) Hokkaido University Sapporo, Japan Antarctic Climate and Ecosystems Cooperative Research Centre (ACE-CRC) Australian Antarctic Division (AAD) Australian Government, Department of the Environment and Energy Centre for Australian Weather and Climate Research (CAWCR) Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Department of Biological Sciences, Macquarie University Macquarie University, Department of Biological Sciences University of Sydney Institute of Marine Science (USIMS) The University of Sydney South Australian Research and Development Institute CNES-TOSCA European Project: 637770,H2020,ERC-2014-STG,WAPITI(2015) |
format |
Article in Journal/Newspaper |
author |
Labrousse, Sara Sallée, Jean-Baptiste Fraser, Alexander D. Massom, Robert A. Reid, Phillip, Sumner, Michael Guinet, Christophe Harcourt, Robert G. Mcmahon, Clive R. Bailleul, Frédéric Hindell, Mark A. Charrassin, Jean-Benoît |
author_facet |
Labrousse, Sara Sallée, Jean-Baptiste Fraser, Alexander D. Massom, Robert A. Reid, Phillip, Sumner, Michael Guinet, Christophe Harcourt, Robert G. Mcmahon, Clive R. Bailleul, Frédéric Hindell, Mark A. Charrassin, Jean-Benoît |
author_sort |
Labrousse, Sara |
title |
Under the sea ice: Exploring the relationship between sea ice and the foraging behaviour of southern elephant seals in East Antarctica |
title_short |
Under the sea ice: Exploring the relationship between sea ice and the foraging behaviour of southern elephant seals in East Antarctica |
title_full |
Under the sea ice: Exploring the relationship between sea ice and the foraging behaviour of southern elephant seals in East Antarctica |
title_fullStr |
Under the sea ice: Exploring the relationship between sea ice and the foraging behaviour of southern elephant seals in East Antarctica |
title_full_unstemmed |
Under the sea ice: Exploring the relationship between sea ice and the foraging behaviour of southern elephant seals in East Antarctica |
title_sort |
under the sea ice: exploring the relationship between sea ice and the foraging behaviour of southern elephant seals in east antarctica |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.archives-ouvertes.fr/hal-01538931 https://doi.org/10.1016/j.pocean.2017.05.014 |
geographic |
Antarctic East Antarctica Kerguelen Kerguelen Islands |
geographic_facet |
Antarctic East Antarctica Kerguelen Kerguelen Islands |
genre |
Antarc* Antarctic Antarctica East Antarctica Elephant Seals Kerguelen Islands Mirounga leonina Sea ice Southern Elephant Seals |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Elephant Seals Kerguelen Islands Mirounga leonina Sea ice Southern Elephant Seals |
op_source |
ISSN: 0079-6611 Progress in Oceanography https://hal.archives-ouvertes.fr/hal-01538931 Progress in Oceanography, Elsevier, 2017, 156, pp.17-40. ⟨10.1016/j.pocean.2017.05.014⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.pocean.2017.05.014 info:eu-repo/grantAgreement//637770/EU/Water-mass transformation and Pathways In The Weddell Sea: uncovering the dynamics of a global climate chokepoint from In-situ measurements/WAPITI hal-01538931 https://hal.archives-ouvertes.fr/hal-01538931 doi:10.1016/j.pocean.2017.05.014 WOS: 000411770600002 |
op_doi |
https://doi.org/10.1016/j.pocean.2017.05.014 |
container_title |
Progress in Oceanography |
container_volume |
156 |
container_start_page |
17 |
op_container_end_page |
40 |
_version_ |
1766184921145016320 |
spelling |
ftccsdartic:oai:HAL:hal-01538931v1 2023-05-15T13:43:07+02:00 Under the sea ice: Exploring the relationship between sea ice and the foraging behaviour of southern elephant seals in East Antarctica Labrousse, Sara Sallée, Jean-Baptiste Fraser, Alexander D. Massom, Robert A. Reid, Phillip, Sumner, Michael Guinet, Christophe Harcourt, Robert G. Mcmahon, Clive R. Bailleul, Frédéric Hindell, Mark A. Charrassin, Jean-Benoît Institute for Marine and Antarctic Studies Horbat (IMAS) University of Tasmania Hobart, Australia (UTAS) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Processus de couplage à Petite Echelle, Ecosystèmes et Prédateurs Supérieurs (PEPS) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) British Antarctic Survey (BAS) Natural Environment Research Council (NERC) Hokkaido University Sapporo, Japan Antarctic Climate and Ecosystems Cooperative Research Centre (ACE-CRC) Australian Antarctic Division (AAD) Australian Government, Department of the Environment and Energy Centre for Australian Weather and Climate Research (CAWCR) Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Department of Biological Sciences, Macquarie University Macquarie University, Department of Biological Sciences University of Sydney Institute of Marine Science (USIMS) The University of Sydney South Australian Research and Development Institute CNES-TOSCA European Project: 637770,H2020,ERC-2014-STG,WAPITI(2015) 2017-05-31 https://hal.archives-ouvertes.fr/hal-01538931 https://doi.org/10.1016/j.pocean.2017.05.014 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.pocean.2017.05.014 info:eu-repo/grantAgreement//637770/EU/Water-mass transformation and Pathways In The Weddell Sea: uncovering the dynamics of a global climate chokepoint from In-situ measurements/WAPITI hal-01538931 https://hal.archives-ouvertes.fr/hal-01538931 doi:10.1016/j.pocean.2017.05.014 WOS: 000411770600002 ISSN: 0079-6611 Progress in Oceanography https://hal.archives-ouvertes.fr/hal-01538931 Progress in Oceanography, Elsevier, 2017, 156, pp.17-40. ⟨10.1016/j.pocean.2017.05.014⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2017 ftccsdartic https://doi.org/10.1016/j.pocean.2017.05.014 2021-12-05T02:50:37Z International audience Investigating ecological relationships between predators and their environment is essential to understandthe response of marine ecosystems to climate variability and change. This is particularly true inpolar regions, where sea ice (a sensitive climate variable) plays a crucial yet highly dynamic and variablerole in how it influences the whole marine ecosystem, from phytoplankton to top predators. For mesopredatorssuch as seals, sea ice both supports a rich (under-ice) food resource, access to which dependson local to regional coverage and conditions. Here, we investigate sex-specific relationships between theforaging strategies of southern elephant seals (Mirounga leonina) in winter and spatio-temporal variabilityin sea ice concentration (SIC) and coverage in East Antarctica. We satellite-tracked 46 individualsundertaking post-moult trips in winter from Kerguelen Islands to the peri-Antarctic shelf between2004 and 2014. These data indicate distinct general patterns of sea ice usage: while females tended tofollow the sea ice edge as it extended northward, the males remained on the continental shelf despiteincreasing sea ice. Seal hunting time, a proxy of foraging activity inferred from the diving behaviour,was longer for females in late autumn in the outer part of the pack ice, 150–370 km south of the iceedge. Within persistent regions of compact sea ice, females had a longer foraging activity (i) in the highestsea ice concentration at their position, but (ii) their foraging activity was longer when there were morepatches of low concentration sea ice around their position (either in time or in space; 30 days & 50 km).The high spatio-temporal variability of sea ice around female positions is probably a key factor allowingthem to exploit these concentrated patches. Despite lack of information on prey availability, females mayexploit mesopelagic finfishes and squids that concentrate near the ice-water interface or within the watercolumn (from diurnal vertical migration) in the pack ice ... Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Elephant Seals Kerguelen Islands Mirounga leonina Sea ice Southern Elephant Seals Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic East Antarctica Kerguelen Kerguelen Islands Progress in Oceanography 156 17 40 |