Identifying foraging events in deep diving southern elephant seals, Mirounga leonina, using acceleration data loggers
International audience Southern elephant seals (Mirounga leonina) range widely throughout the Southern Ocean and are associated with important habitats (e.g., ice edges, shelf) where they accumulate energy to fuel their reproductive efforts on land. Knowledge of the fine scale foraging behaviour use...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
---|---|
Main Authors: | , , , , , , |
Other Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2013
|
Subjects: | |
Online Access: | https://doi.org/10.1016/j.dsr2.2012.09.002 https://hal.archives-ouvertes.fr/hal-00762201 |
id |
fttriple:oai:gotriple.eu:10670/1.x5fbkx |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
predator prey interactions Kerguelen island diving behaviour marine ecology accelerometers mirounga leonina envir geo |
spellingShingle |
predator prey interactions Kerguelen island diving behaviour marine ecology accelerometers mirounga leonina envir geo Gallon, S.L. Bailleul, Frédéric Charrassin, Jean-Benoît Guinet, Christophe Bost, Charles-André Handrich, Yves Hindell, Mark A. Identifying foraging events in deep diving southern elephant seals, Mirounga leonina, using acceleration data loggers |
topic_facet |
predator prey interactions Kerguelen island diving behaviour marine ecology accelerometers mirounga leonina envir geo |
description |
International audience Southern elephant seals (Mirounga leonina) range widely throughout the Southern Ocean and are associated with important habitats (e.g., ice edges, shelf) where they accumulate energy to fuel their reproductive efforts on land. Knowledge of the fine scale foraging behaviour used to garner this energy, however, is limited. For the first time, acceleration loggers were deployed on three adult southern elephant seals during a translocation study at Kerguelen Island. The aims of the study were to (1) identify prey capture attempts using 2-D accelerometer tags deployed on the head of southern elephant seals, (2) compare the number of foraging dives identified by simple dive depth profiles and accelerometer profiles and (3) compare dive characteristics between prey encounter and non-prey encounter dives. The 2-D loggers recorded depth every second, surge and heave accelerations at 8 or 16 Hz and were carried for periods between 23 and 121 h. Rapid head movements were interpreted to be associated with prey encounter events. Acceleration data detected possible prey encounter events in 39-52% of dives whilst 67-80% of dives were classified as foraging dives when using dive depth profiles alone. Prey encounters occurred in successive dives during days and nights and lasted between tenths of a second and 7.6 min. Binomial linear mixed effect models showed that seals were diving significantly deeper and increased both descent rate and bottom duration when encountering prey. Dive duration, however, did not significantly increase during dives with prey encounters. These results are in accordance with optimal foraging theory, which predicts that deep divers should increase both their transit rates and the time spent at depth when a profitable prey patch is encountered. These findings indicate that this technique is promising as it more accurately detects possible prey encounter events compared with dive depth profiles alone and thus provides a better understanding of seal foraging strategies. |
author2 |
Institute for Marine and Antarctic Studies Horbat (IMAS) University of Tasmania Hobart, Australia (UTAS) 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) 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) Département Ecologie, Physiologie et Ethologie (DEPE-IPHC) Institut Pluridisciplinaire Hubert Curien (IPHC) Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Gallon, S.L. Bailleul, Frédéric Charrassin, Jean-Benoît Guinet, Christophe Bost, Charles-André Handrich, Yves Hindell, Mark A. |
author_facet |
Gallon, S.L. Bailleul, Frédéric Charrassin, Jean-Benoît Guinet, Christophe Bost, Charles-André Handrich, Yves Hindell, Mark A. |
author_sort |
Gallon, S.L. |
title |
Identifying foraging events in deep diving southern elephant seals, Mirounga leonina, using acceleration data loggers |
title_short |
Identifying foraging events in deep diving southern elephant seals, Mirounga leonina, using acceleration data loggers |
title_full |
Identifying foraging events in deep diving southern elephant seals, Mirounga leonina, using acceleration data loggers |
title_fullStr |
Identifying foraging events in deep diving southern elephant seals, Mirounga leonina, using acceleration data loggers |
title_full_unstemmed |
Identifying foraging events in deep diving southern elephant seals, Mirounga leonina, using acceleration data loggers |
title_sort |
identifying foraging events in deep diving southern elephant seals, mirounga leonina, using acceleration data loggers |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://doi.org/10.1016/j.dsr2.2012.09.002 https://hal.archives-ouvertes.fr/hal-00762201 |
long_lat |
ENVELOPE(69.500,69.500,-49.250,-49.250) |
geographic |
Kerguelen Kerguelen Island Southern Ocean |
geographic_facet |
Kerguelen Kerguelen Island Southern Ocean |
genre |
Elephant Seals Mirounga leonina Southern Elephant Seals Southern Ocean |
genre_facet |
Elephant Seals Mirounga leonina Southern Elephant Seals Southern Ocean |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0967-0645 Deep Sea Research Part II: Topical Studies in Oceanography Deep Sea Research Part II: Topical Studies in Oceanography, Elsevier, 2013, 88-89, pp.14-22. ⟨10.1016/j.dsr2.2012.09.002⟩ |
op_relation |
hal-00762201 doi:10.1016/j.dsr2.2012.09.002 10670/1.x5fbkx https://hal.archives-ouvertes.fr/hal-00762201 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1016/j.dsr2.2012.09.002 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
88-89 |
container_start_page |
14 |
op_container_end_page |
22 |
_version_ |
1766401496399740928 |
spelling |
fttriple:oai:gotriple.eu:10670/1.x5fbkx 2023-05-15T16:05:36+02:00 Identifying foraging events in deep diving southern elephant seals, Mirounga leonina, using acceleration data loggers Gallon, S.L. Bailleul, Frédéric Charrassin, Jean-Benoît Guinet, Christophe Bost, Charles-André Handrich, Yves Hindell, Mark A. Institute for Marine and Antarctic Studies Horbat (IMAS) University of Tasmania Hobart, Australia (UTAS) 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) 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) Département Ecologie, Physiologie et Ethologie (DEPE-IPHC) Institut Pluridisciplinaire Hubert Curien (IPHC) Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS) 2013-01-01 https://doi.org/10.1016/j.dsr2.2012.09.002 https://hal.archives-ouvertes.fr/hal-00762201 en eng HAL CCSD Elsevier hal-00762201 doi:10.1016/j.dsr2.2012.09.002 10670/1.x5fbkx https://hal.archives-ouvertes.fr/hal-00762201 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0967-0645 Deep Sea Research Part II: Topical Studies in Oceanography Deep Sea Research Part II: Topical Studies in Oceanography, Elsevier, 2013, 88-89, pp.14-22. ⟨10.1016/j.dsr2.2012.09.002⟩ predator prey interactions Kerguelen island diving behaviour marine ecology accelerometers mirounga leonina envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2013 fttriple https://doi.org/10.1016/j.dsr2.2012.09.002 2023-01-22T17:14:58Z International audience Southern elephant seals (Mirounga leonina) range widely throughout the Southern Ocean and are associated with important habitats (e.g., ice edges, shelf) where they accumulate energy to fuel their reproductive efforts on land. Knowledge of the fine scale foraging behaviour used to garner this energy, however, is limited. For the first time, acceleration loggers were deployed on three adult southern elephant seals during a translocation study at Kerguelen Island. The aims of the study were to (1) identify prey capture attempts using 2-D accelerometer tags deployed on the head of southern elephant seals, (2) compare the number of foraging dives identified by simple dive depth profiles and accelerometer profiles and (3) compare dive characteristics between prey encounter and non-prey encounter dives. The 2-D loggers recorded depth every second, surge and heave accelerations at 8 or 16 Hz and were carried for periods between 23 and 121 h. Rapid head movements were interpreted to be associated with prey encounter events. Acceleration data detected possible prey encounter events in 39-52% of dives whilst 67-80% of dives were classified as foraging dives when using dive depth profiles alone. Prey encounters occurred in successive dives during days and nights and lasted between tenths of a second and 7.6 min. Binomial linear mixed effect models showed that seals were diving significantly deeper and increased both descent rate and bottom duration when encountering prey. Dive duration, however, did not significantly increase during dives with prey encounters. These results are in accordance with optimal foraging theory, which predicts that deep divers should increase both their transit rates and the time spent at depth when a profitable prey patch is encountered. These findings indicate that this technique is promising as it more accurately detects possible prey encounter events compared with dive depth profiles alone and thus provides a better understanding of seal foraging strategies. Article in Journal/Newspaper Elephant Seals Mirounga leonina Southern Elephant Seals Southern Ocean Unknown Kerguelen Kerguelen Island ENVELOPE(69.500,69.500,-49.250,-49.250) Southern Ocean Deep Sea Research Part II: Topical Studies in Oceanography 88-89 14 22 |