Southern elephant seals from Kerguelen Islands confronted by Antarctic sea ice. Changes in movements and in diving behaviour.
International audience The behaviour of southern elephant seals from Kerguelen Island (49°50S, 70°30'E) was investigated in relation to the oceanographic regions of the Southern Ocean. The oceanographic and the seal behaviour data, including location and diving activity, were collected using a...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
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Main Authors: | , , , , , , |
Other Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2007
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Subjects: | |
Online Access: | https://hal.science/hal-00182369 https://doi.org/10.1016/j.dsr2.2006.11.005 |
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ftsorbonneuniv:oai:HAL:hal-00182369v1 |
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openpolar |
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Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
Mirounga leonina Diving Behaviour Pelagic environment Temperature profiles Benthic environment Marine ecology [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environment and Society [SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
Mirounga leonina Diving Behaviour Pelagic environment Temperature profiles Benthic environment Marine ecology [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environment and Society [SDE.MCG]Environmental Sciences/Global Changes Bailleul, Frédéric Charrassin, Jean-Benoit Ezraty, Robert Girard-Ardhuin, Fanny Mcmahon, Clive R. Field, Iain C. Guinet, Christophe Southern elephant seals from Kerguelen Islands confronted by Antarctic sea ice. Changes in movements and in diving behaviour. |
topic_facet |
Mirounga leonina Diving Behaviour Pelagic environment Temperature profiles Benthic environment Marine ecology [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environment and Society [SDE.MCG]Environmental Sciences/Global Changes |
description |
International audience The behaviour of southern elephant seals from Kerguelen Island (49°50S, 70°30'E) was investigated in relation to the oceanographic regions of the Southern Ocean. The oceanographic and the seal behaviour data, including location and diving activity, were collected using a new generation of satellite-relayed devices measuring and transmitting pressure, temperature, and salinity along with locations. Dive duration, maximum diving depth, time spent at the bottom of the dives, and shape of dive profiles were compared between male and female seals, and were related to the oceanographic characteristics of areas prospected by the seals. Most animals travelled to the Antarctic shelf. However, during winter, adult females travelled away from the continent, remained and foraged within the marginal sea-ice zone, while juvenile males remained within the pack ice to forage mainly on the Antarctic shelf. Therefore, as the ice expanded females appeared to shift from benthic to pelagic foraging farther north, while males continued to forage almost exclusively benthically on the continental shelf. This difference is likely related to the different energetic requirements between the two sexes, but also may be related to pregnant females having to return to Kerguelen in early spring in order to give birth and successfully raise their pups, while males can remain in the ice. Our results show an important link between elephant seals and Antarctic sea ice and suggest that changes in sea-ice conditions could strongly affect the behaviour of this species. |
author2 |
Centre d'Études Biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) 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-PSL) 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) Laboratoire d'Océanographie Spatiale (LOS) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Centre National d’Études Spatiales Paris (CNES) Antartic Wildlife Research Unit School of Zoology, University of Tasmania |
format |
Article in Journal/Newspaper |
author |
Bailleul, Frédéric Charrassin, Jean-Benoit Ezraty, Robert Girard-Ardhuin, Fanny Mcmahon, Clive R. Field, Iain C. Guinet, Christophe |
author_facet |
Bailleul, Frédéric Charrassin, Jean-Benoit Ezraty, Robert Girard-Ardhuin, Fanny Mcmahon, Clive R. Field, Iain C. Guinet, Christophe |
author_sort |
Bailleul, Frédéric |
title |
Southern elephant seals from Kerguelen Islands confronted by Antarctic sea ice. Changes in movements and in diving behaviour. |
title_short |
Southern elephant seals from Kerguelen Islands confronted by Antarctic sea ice. Changes in movements and in diving behaviour. |
title_full |
Southern elephant seals from Kerguelen Islands confronted by Antarctic sea ice. Changes in movements and in diving behaviour. |
title_fullStr |
Southern elephant seals from Kerguelen Islands confronted by Antarctic sea ice. Changes in movements and in diving behaviour. |
title_full_unstemmed |
Southern elephant seals from Kerguelen Islands confronted by Antarctic sea ice. Changes in movements and in diving behaviour. |
title_sort |
southern elephant seals from kerguelen islands confronted by antarctic sea ice. changes in movements and in diving behaviour. |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-00182369 https://doi.org/10.1016/j.dsr2.2006.11.005 |
genre |
Antarc* Antarctic Elephant Seals Kerguelen Islands Mirounga leonina Sea ice Southern Elephant Seals Southern Ocean |
genre_facet |
Antarc* Antarctic Elephant Seals Kerguelen Islands Mirounga leonina Sea ice Southern Elephant Seals Southern Ocean |
op_source |
ISSN: 0146-6291 Deep Sea Research https://hal.science/hal-00182369 Deep Sea Research, 2007, 54 (3-4), pp.343-355. ⟨10.1016/j.dsr2.2006.11.005⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr2.2006.11.005 hal-00182369 https://hal.science/hal-00182369 doi:10.1016/j.dsr2.2006.11.005 |
op_doi |
https://doi.org/10.1016/j.dsr2.2006.11.005 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
54 |
container_issue |
3-4 |
container_start_page |
343 |
op_container_end_page |
355 |
_version_ |
1799469635723067392 |
spelling |
ftsorbonneuniv:oai:HAL:hal-00182369v1 2024-05-19T07:31:45+00:00 Southern elephant seals from Kerguelen Islands confronted by Antarctic sea ice. Changes in movements and in diving behaviour. Bailleul, Frédéric Charrassin, Jean-Benoit Ezraty, Robert Girard-Ardhuin, Fanny Mcmahon, Clive R. Field, Iain C. Guinet, Christophe Centre d'Études Biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) 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-PSL) 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) Laboratoire d'Océanographie Spatiale (LOS) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Centre National d’Études Spatiales Paris (CNES) Antartic Wildlife Research Unit School of Zoology, University of Tasmania 2007-01 https://hal.science/hal-00182369 https://doi.org/10.1016/j.dsr2.2006.11.005 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr2.2006.11.005 hal-00182369 https://hal.science/hal-00182369 doi:10.1016/j.dsr2.2006.11.005 ISSN: 0146-6291 Deep Sea Research https://hal.science/hal-00182369 Deep Sea Research, 2007, 54 (3-4), pp.343-355. ⟨10.1016/j.dsr2.2006.11.005⟩ Mirounga leonina Diving Behaviour Pelagic environment Temperature profiles Benthic environment Marine ecology [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environment and Society [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2007 ftsorbonneuniv https://doi.org/10.1016/j.dsr2.2006.11.005 2024-04-25T04:09:15Z International audience The behaviour of southern elephant seals from Kerguelen Island (49°50S, 70°30'E) was investigated in relation to the oceanographic regions of the Southern Ocean. The oceanographic and the seal behaviour data, including location and diving activity, were collected using a new generation of satellite-relayed devices measuring and transmitting pressure, temperature, and salinity along with locations. Dive duration, maximum diving depth, time spent at the bottom of the dives, and shape of dive profiles were compared between male and female seals, and were related to the oceanographic characteristics of areas prospected by the seals. Most animals travelled to the Antarctic shelf. However, during winter, adult females travelled away from the continent, remained and foraged within the marginal sea-ice zone, while juvenile males remained within the pack ice to forage mainly on the Antarctic shelf. Therefore, as the ice expanded females appeared to shift from benthic to pelagic foraging farther north, while males continued to forage almost exclusively benthically on the continental shelf. This difference is likely related to the different energetic requirements between the two sexes, but also may be related to pregnant females having to return to Kerguelen in early spring in order to give birth and successfully raise their pups, while males can remain in the ice. Our results show an important link between elephant seals and Antarctic sea ice and suggest that changes in sea-ice conditions could strongly affect the behaviour of this species. Article in Journal/Newspaper Antarc* Antarctic Elephant Seals Kerguelen Islands Mirounga leonina Sea ice Southern Elephant Seals Southern Ocean HAL Sorbonne Université Deep Sea Research Part II: Topical Studies in Oceanography 54 3-4 343 355 |