Successful foraging zones of southern elephant seals from the Kerguelen Islands in relation to oceanographic conditions
International audience Southern elephant seals, Mirounga leonina, undertake large-scale oceanic movements to access favourable foraging areas. Successful foraging areas of elephant seals from the Kerguelen Islands are investigated here in relation to oceanographic parameters. Movements and diving ac...
Published in: | Philosophical Transactions of the Royal Society B: Biological Sciences |
---|---|
Main Authors: | , , , , , |
Other Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2005
|
Subjects: | |
Online Access: | https://hal.science/hal-00260047 https://doi.org/10.1098/rstb.2007.2109 |
id |
ftceafr:oai:HAL:hal-00260047v1 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
op_collection_id |
ftceafr |
language |
English |
topic |
Mirounga leonina marine ecology foraging behaviour drift dives temperature profiles satellite telemetry [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environment and Society [SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
Mirounga leonina marine ecology foraging behaviour drift dives temperature profiles satellite telemetry [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 Monestiez, Pascal Roquet, Fabien Biuw, Martin Guinet, Christophe Successful foraging zones of southern elephant seals from the Kerguelen Islands in relation to oceanographic conditions |
topic_facet |
Mirounga leonina marine ecology foraging behaviour drift dives temperature profiles satellite telemetry [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environment and Society [SDE.MCG]Environmental Sciences/Global Changes |
description |
International audience Southern elephant seals, Mirounga leonina, undertake large-scale oceanic movements to access favourable foraging areas. Successful foraging areas of elephant seals from the Kerguelen Islands are investigated here in relation to oceanographic parameters. Movements and diving activity of the seals as well as oceanographic data were collected through a new generation of satellite relayed devices measuring and transmitting locations, pressure, temperature and salinity. For the first time, we have associated foraging behaviour, determined by high increased sinuosity in tracks, and dive density (i.e. number of dives performed per kilometre covered), and changes in body condition, determined by variations in drift rate obtained from drift dives, to identify the oceanographic conditions of successful foraging zones for this species. Two main sectors, one close to the Antarctic continent and the other along the Polar Front (PF), where both foraging activity and body condition increase, seem to be of particular interest for the seals. Within these regions, some seals tended to focus their foraging activity on zones with particular temperature signatures. Along the Antarctic continent, some seals targeted colder waters on the sea bottom during benthic dives, while at the PF the favourable zones tended to be warmer. The possible negative effect of colder waters in Antarctic on the swimming performances of potential fish or squid prey could explain the behaviour of elephant seals in these zones, while warmer waters within the PF could correspond to the optimal conditions for potential myctophid prey of elephant seals. |
author2 |
Centre d'Études Biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) Laboratoire d'océanographie dynamique et de climatologie (LODYC) Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) Institut National de la Recherche Agronomique (INRA) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-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)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-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)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) Sea Mammal Research Unit University of St Andrews (SMRU) School of Biology University of St Andrews University of St Andrews Scotland -University of St Andrews Scotland -Natural Environment Research Council (NERC) |
format |
Article in Journal/Newspaper |
author |
Bailleul, Frédéric Charrassin, Jean-Benoit Monestiez, Pascal Roquet, Fabien Biuw, Martin Guinet, Christophe |
author_facet |
Bailleul, Frédéric Charrassin, Jean-Benoit Monestiez, Pascal Roquet, Fabien Biuw, Martin Guinet, Christophe |
author_sort |
Bailleul, Frédéric |
title |
Successful foraging zones of southern elephant seals from the Kerguelen Islands in relation to oceanographic conditions |
title_short |
Successful foraging zones of southern elephant seals from the Kerguelen Islands in relation to oceanographic conditions |
title_full |
Successful foraging zones of southern elephant seals from the Kerguelen Islands in relation to oceanographic conditions |
title_fullStr |
Successful foraging zones of southern elephant seals from the Kerguelen Islands in relation to oceanographic conditions |
title_full_unstemmed |
Successful foraging zones of southern elephant seals from the Kerguelen Islands in relation to oceanographic conditions |
title_sort |
successful foraging zones of southern elephant seals from the kerguelen islands in relation to oceanographic conditions |
publisher |
HAL CCSD |
publishDate |
2005 |
url |
https://hal.science/hal-00260047 https://doi.org/10.1098/rstb.2007.2109 |
genre |
Antarc* Antarctic Elephant Seals Kerguelen Islands Mirounga leonina Southern Elephant Seals |
genre_facet |
Antarc* Antarctic Elephant Seals Kerguelen Islands Mirounga leonina Southern Elephant Seals |
op_source |
ISSN: 0264-3839 Philosophical Transactions of the Royal Society of London. B (1887–1895) https://hal.science/hal-00260047 Philosophical Transactions of the Royal Society of London. B (1887–1895), 2005, 362, pp.2169-2181. ⟨10.1098/rstb.2007.2109⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1098/rstb.2007.2109 hal-00260047 https://hal.science/hal-00260047 doi:10.1098/rstb.2007.2109 PRODINRA: 21434 PUBMEDCENTRAL: PMC2442861 |
op_doi |
https://doi.org/10.1098/rstb.2007.2109 |
container_title |
Philosophical Transactions of the Royal Society B: Biological Sciences |
container_volume |
362 |
container_issue |
1487 |
container_start_page |
2169 |
op_container_end_page |
2181 |
_version_ |
1810495605560049664 |
spelling |
ftceafr:oai:HAL:hal-00260047v1 2024-09-15T17:47:04+00:00 Successful foraging zones of southern elephant seals from the Kerguelen Islands in relation to oceanographic conditions Bailleul, Frédéric Charrassin, Jean-Benoit Monestiez, Pascal Roquet, Fabien Biuw, Martin Guinet, Christophe Centre d'Études Biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) Laboratoire d'océanographie dynamique et de climatologie (LODYC) Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) Institut National de la Recherche Agronomique (INRA) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-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)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-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)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) Sea Mammal Research Unit University of St Andrews (SMRU) School of Biology University of St Andrews University of St Andrews Scotland -University of St Andrews Scotland -Natural Environment Research Council (NERC) 2005-05-01 https://hal.science/hal-00260047 https://doi.org/10.1098/rstb.2007.2109 en eng HAL CCSD Royal Society, The info:eu-repo/semantics/altIdentifier/doi/10.1098/rstb.2007.2109 hal-00260047 https://hal.science/hal-00260047 doi:10.1098/rstb.2007.2109 PRODINRA: 21434 PUBMEDCENTRAL: PMC2442861 ISSN: 0264-3839 Philosophical Transactions of the Royal Society of London. B (1887–1895) https://hal.science/hal-00260047 Philosophical Transactions of the Royal Society of London. B (1887–1895), 2005, 362, pp.2169-2181. ⟨10.1098/rstb.2007.2109⟩ Mirounga leonina marine ecology foraging behaviour drift dives temperature profiles satellite telemetry [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 2005 ftceafr https://doi.org/10.1098/rstb.2007.2109 2024-07-22T13:20:00Z International audience Southern elephant seals, Mirounga leonina, undertake large-scale oceanic movements to access favourable foraging areas. Successful foraging areas of elephant seals from the Kerguelen Islands are investigated here in relation to oceanographic parameters. Movements and diving activity of the seals as well as oceanographic data were collected through a new generation of satellite relayed devices measuring and transmitting locations, pressure, temperature and salinity. For the first time, we have associated foraging behaviour, determined by high increased sinuosity in tracks, and dive density (i.e. number of dives performed per kilometre covered), and changes in body condition, determined by variations in drift rate obtained from drift dives, to identify the oceanographic conditions of successful foraging zones for this species. Two main sectors, one close to the Antarctic continent and the other along the Polar Front (PF), where both foraging activity and body condition increase, seem to be of particular interest for the seals. Within these regions, some seals tended to focus their foraging activity on zones with particular temperature signatures. Along the Antarctic continent, some seals targeted colder waters on the sea bottom during benthic dives, while at the PF the favourable zones tended to be warmer. The possible negative effect of colder waters in Antarctic on the swimming performances of potential fish or squid prey could explain the behaviour of elephant seals in these zones, while warmer waters within the PF could correspond to the optimal conditions for potential myctophid prey of elephant seals. Article in Journal/Newspaper Antarc* Antarctic Elephant Seals Kerguelen Islands Mirounga leonina Southern Elephant Seals HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) Philosophical Transactions of the Royal Society B: Biological Sciences 362 1487 2169 2181 |