Acoustic measurements of post-dive cardiac responses in southern elephant seals ( Mirounga leonina ) during surfacing at sea
International audience Measuring physiological data in free-ranging marine mammals remains challenging, owing to their far-ranging foraging habitat. Yet, it is important to understand how these divers recover from effort expended underwater, as marine mammals can perform deep and recurrent dives. Am...
Published in: | Journal of Experimental Biology |
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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-01499321 https://doi.org/10.1242/jeb.146928 |
id |
ftccsdartic:oai:HAL:hal-01499321v1 |
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openpolar |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Dive recovery Diving behaviour Passive acoustic monitoring Mirounga leonina Heart rate [SDE]Environmental Sciences |
spellingShingle |
Dive recovery Diving behaviour Passive acoustic monitoring Mirounga leonina Heart rate [SDE]Environmental Sciences Day, Louise Jouma'A, Joffrey Bonnel, Julien Guinet, Christophe Acoustic measurements of post-dive cardiac responses in southern elephant seals ( Mirounga leonina ) during surfacing at sea |
topic_facet |
Dive recovery Diving behaviour Passive acoustic monitoring Mirounga leonina Heart rate [SDE]Environmental Sciences |
description |
International audience Measuring physiological data in free-ranging marine mammals remains challenging, owing to their far-ranging foraging habitat. Yet, it is important to understand how these divers recover from effort expended underwater, as marine mammals can perform deep and recurrent dives. Among them, southern elephant seals (Mirounga leonina) are one of the most extreme divers, diving continuously at great depth and for long duration while travelling over large distances within the Southern Ocean. To determine how they manage post-dive recovery, we deployed hydrophones on four post-breeding female southern elephant seals. Cardiac data were extracted from sound recordings when the animal was at the surface breathing. Mean heart rate at the surface was 102.4±4.9 beats.min(-1) and seals spent on average 121±20 s breathing. During these surface intervals, the instantaneous heart rate is increasing with time. Elephant seals are supposed to drastically slow their heart rate (bradycardia) while they are deep underwater, and increase it (tachycardia) during the ascent towards the surface. Our finding suggests that tachycardia continues while the animal stays breathing at the surface. Also, the measured mean heart rate at the surface was unrelated to the duration and swimming effort of the dive prior to the surface interval. Recovery (at the surface) after physical effort (underwater) appears to be related to the overall number of heart beats performed at the surface, and therefore total surface duration. Southern elephant seals recover from dives by adjusting the time spent at the surface rather than their heart rate |
author2 |
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) Lab-STICC_ENSTAB_CID_TOMS Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC) Institut Mines-Télécom Paris (IMT)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique) Institut Mines-Télécom Paris (IMT)-École Nationale d'Ingénieurs de Brest (ENIB)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-Institut Mines-Télécom Paris (IMT)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique) Institut Mines-Télécom Paris (IMT)-École Nationale d'Ingénieurs de Brest (ENIB)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL) Pôle STIC_AP École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne) |
format |
Article in Journal/Newspaper |
author |
Day, Louise Jouma'A, Joffrey Bonnel, Julien Guinet, Christophe |
author_facet |
Day, Louise Jouma'A, Joffrey Bonnel, Julien Guinet, Christophe |
author_sort |
Day, Louise |
title |
Acoustic measurements of post-dive cardiac responses in southern elephant seals ( Mirounga leonina ) during surfacing at sea |
title_short |
Acoustic measurements of post-dive cardiac responses in southern elephant seals ( Mirounga leonina ) during surfacing at sea |
title_full |
Acoustic measurements of post-dive cardiac responses in southern elephant seals ( Mirounga leonina ) during surfacing at sea |
title_fullStr |
Acoustic measurements of post-dive cardiac responses in southern elephant seals ( Mirounga leonina ) during surfacing at sea |
title_full_unstemmed |
Acoustic measurements of post-dive cardiac responses in southern elephant seals ( Mirounga leonina ) during surfacing at sea |
title_sort |
acoustic measurements of post-dive cardiac responses in southern elephant seals ( mirounga leonina ) during surfacing at sea |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.archives-ouvertes.fr/hal-01499321 https://doi.org/10.1242/jeb.146928 |
geographic |
Southern Ocean |
geographic_facet |
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 |
ISSN: 0022-0949 EISSN: 1477-9145 Journal of Experimental Biology https://hal.archives-ouvertes.fr/hal-01499321 Journal of Experimental Biology, The Company of Biologists, 2017, 220, pp.1626-1633. ⟨10.1242/jeb.146928⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1242/jeb.146928 hal-01499321 https://hal.archives-ouvertes.fr/hal-01499321 doi:10.1242/jeb.146928 |
op_doi |
https://doi.org/10.1242/jeb.146928 |
container_title |
Journal of Experimental Biology |
_version_ |
1766401461534588928 |
spelling |
ftccsdartic:oai:HAL:hal-01499321v1 2023-05-15T16:05:34+02:00 Acoustic measurements of post-dive cardiac responses in southern elephant seals ( Mirounga leonina ) during surfacing at sea Day, Louise Jouma'A, Joffrey Bonnel, Julien Guinet, Christophe 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) Lab-STICC_ENSTAB_CID_TOMS Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC) Institut Mines-Télécom Paris (IMT)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique) Institut Mines-Télécom Paris (IMT)-École Nationale d'Ingénieurs de Brest (ENIB)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-Institut Mines-Télécom Paris (IMT)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique) Institut Mines-Télécom Paris (IMT)-École Nationale d'Ingénieurs de Brest (ENIB)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL) Pôle STIC_AP École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne) 2017 https://hal.archives-ouvertes.fr/hal-01499321 https://doi.org/10.1242/jeb.146928 en eng HAL CCSD The Company of Biologists info:eu-repo/semantics/altIdentifier/doi/10.1242/jeb.146928 hal-01499321 https://hal.archives-ouvertes.fr/hal-01499321 doi:10.1242/jeb.146928 ISSN: 0022-0949 EISSN: 1477-9145 Journal of Experimental Biology https://hal.archives-ouvertes.fr/hal-01499321 Journal of Experimental Biology, The Company of Biologists, 2017, 220, pp.1626-1633. ⟨10.1242/jeb.146928⟩ Dive recovery Diving behaviour Passive acoustic monitoring Mirounga leonina Heart rate [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2017 ftccsdartic https://doi.org/10.1242/jeb.146928 2021-11-28T01:04:26Z International audience Measuring physiological data in free-ranging marine mammals remains challenging, owing to their far-ranging foraging habitat. Yet, it is important to understand how these divers recover from effort expended underwater, as marine mammals can perform deep and recurrent dives. Among them, southern elephant seals (Mirounga leonina) are one of the most extreme divers, diving continuously at great depth and for long duration while travelling over large distances within the Southern Ocean. To determine how they manage post-dive recovery, we deployed hydrophones on four post-breeding female southern elephant seals. Cardiac data were extracted from sound recordings when the animal was at the surface breathing. Mean heart rate at the surface was 102.4±4.9 beats.min(-1) and seals spent on average 121±20 s breathing. During these surface intervals, the instantaneous heart rate is increasing with time. Elephant seals are supposed to drastically slow their heart rate (bradycardia) while they are deep underwater, and increase it (tachycardia) during the ascent towards the surface. Our finding suggests that tachycardia continues while the animal stays breathing at the surface. Also, the measured mean heart rate at the surface was unrelated to the duration and swimming effort of the dive prior to the surface interval. Recovery (at the surface) after physical effort (underwater) appears to be related to the overall number of heart beats performed at the surface, and therefore total surface duration. Southern elephant seals recover from dives by adjusting the time spent at the surface rather than their heart rate Article in Journal/Newspaper Elephant Seals Mirounga leonina Southern Elephant Seals Southern Ocean Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Southern Ocean Journal of Experimental Biology |