Spies of the deep: An animal-borne active sonar and bioluminescence tag to characterise mesopelagic prey size and behaviour in distinct oceanographic domains
International audience Mesopelagic fishes, a central component of marine trophic networks, play a fundamental role in marine ecosystems.However, as they live in highly inaccessible environments, little information is currently available ontheir distribution and abundance. The emergence of biologging...
Published in: | Deep Sea Research Part I: Oceanographic Research Papers |
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Online Access: | https://hal.science/hal-04361222 https://doi.org/10.1016/j.dsr.2023.104214 |
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ftunivrochelle:oai:HAL:hal-04361222v1 2024-05-12T08:03:11+00:00 Spies of the deep: An animal-borne active sonar and bioluminescence tag to characterise mesopelagic prey size and behaviour in distinct oceanographic domains Chevallay, Mathilde Jeanniard Du Dot, Tiphaine Goulet, Pauline Fonvieille, Nadège Craig, Cassandra Picard, Baptiste Guinet, Christophe Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Aix Marseille Université, IRD, Université de Toulon, CNRS, Mediterranean Institute of Oceanography (MIO), UM 110, 13288 Marseille cedex 9, France (IRD-MIO) Centre de Recherches sur la Cognition Animale - UMR5169 (CRCA) Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Centre de Biologie Intégrative (CBI) Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Toulouse Mind & Brain Institut (TMBI) Université Toulouse - Jean Jaurès (UT2J) Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J) Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT) 2024-01 https://hal.science/hal-04361222 https://doi.org/10.1016/j.dsr.2023.104214 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr.2023.104214 hal-04361222 https://hal.science/hal-04361222 doi:10.1016/j.dsr.2023.104214 WOS: 001141174500001 ISSN: 0967-0637 Deep Sea Research Part I: Oceanographic Research Papers https://hal.science/hal-04361222 Deep Sea Research Part I: Oceanographic Research Papers, 2024, 203, pp.104214. ⟨10.1016/j.dsr.2023.104214⟩ Southern elephant seals Mirounga leonina Mesopelagic Myctophids Biologging Southern elephant seals Mirounga leonina Mesopelagic Myctophids Biologging [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2024 ftunivrochelle https://doi.org/10.1016/j.dsr.2023.104214 2024-04-17T15:19:17Z International audience Mesopelagic fishes, a central component of marine trophic networks, play a fundamental role in marine ecosystems.However, as they live in highly inaccessible environments, little information is currently available ontheir distribution and abundance. The emergence of biologging technologies has made it possible to use deepdivingpredators as bio-samplers of their environment in under-sampled regions. In this work, we deployed aninnovative miniaturised sonar tag that combines active acoustics with high-resolution GPS, pressure, movementand light sensors on Southern elephant seals, a deep-diving predator feeding on mesopelagic prey. Seals werealso equipped with Conductivity-Temperature-Depth tags. Salinity and temperature depth profiles were used todefine oceanographic domains, allowing us to explore distribution and ecology of mesopelagic prey targeted byseals and the seals’ foraging behaviour. We highlighted strong vertical differences in prey characteristics andbehaviour, with larger, more evasive and less bioluminescent prey in deeper waters. Moreover, prey encounteredin warmer waters were found deeper, were more evasive and displayed a more marked diel vertical migrationbehaviour compared to prey encountered in colder waters, suggesting that prey accessibility and characteristicsdiffer according to oceanographic domains. This study highlights the usefulness of the sonar-bioluminescence tagto infer mesopelagic prey distribution and habitat when deployed on deep-diving predators such as elephantseals. Article in Journal/Newspaper Elephant Seals Mirounga leonina Southern Elephant Seals HAL - Université de La Rochelle Deep Sea Research Part I: Oceanographic Research Papers 203 104214 |
institution |
Open Polar |
collection |
HAL - Université de La Rochelle |
op_collection_id |
ftunivrochelle |
language |
English |
topic |
Southern elephant seals Mirounga leonina Mesopelagic Myctophids Biologging Southern elephant seals Mirounga leonina Mesopelagic Myctophids Biologging [SDE]Environmental Sciences |
spellingShingle |
Southern elephant seals Mirounga leonina Mesopelagic Myctophids Biologging Southern elephant seals Mirounga leonina Mesopelagic Myctophids Biologging [SDE]Environmental Sciences Chevallay, Mathilde Jeanniard Du Dot, Tiphaine Goulet, Pauline Fonvieille, Nadège Craig, Cassandra Picard, Baptiste Guinet, Christophe Spies of the deep: An animal-borne active sonar and bioluminescence tag to characterise mesopelagic prey size and behaviour in distinct oceanographic domains |
topic_facet |
Southern elephant seals Mirounga leonina Mesopelagic Myctophids Biologging Southern elephant seals Mirounga leonina Mesopelagic Myctophids Biologging [SDE]Environmental Sciences |
description |
International audience Mesopelagic fishes, a central component of marine trophic networks, play a fundamental role in marine ecosystems.However, as they live in highly inaccessible environments, little information is currently available ontheir distribution and abundance. The emergence of biologging technologies has made it possible to use deepdivingpredators as bio-samplers of their environment in under-sampled regions. In this work, we deployed aninnovative miniaturised sonar tag that combines active acoustics with high-resolution GPS, pressure, movementand light sensors on Southern elephant seals, a deep-diving predator feeding on mesopelagic prey. Seals werealso equipped with Conductivity-Temperature-Depth tags. Salinity and temperature depth profiles were used todefine oceanographic domains, allowing us to explore distribution and ecology of mesopelagic prey targeted byseals and the seals’ foraging behaviour. We highlighted strong vertical differences in prey characteristics andbehaviour, with larger, more evasive and less bioluminescent prey in deeper waters. Moreover, prey encounteredin warmer waters were found deeper, were more evasive and displayed a more marked diel vertical migrationbehaviour compared to prey encountered in colder waters, suggesting that prey accessibility and characteristicsdiffer according to oceanographic domains. This study highlights the usefulness of the sonar-bioluminescence tagto infer mesopelagic prey distribution and habitat when deployed on deep-diving predators such as elephantseals. |
author2 |
Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Aix Marseille Université, IRD, Université de Toulon, CNRS, Mediterranean Institute of Oceanography (MIO), UM 110, 13288 Marseille cedex 9, France (IRD-MIO) Centre de Recherches sur la Cognition Animale - UMR5169 (CRCA) Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Centre de Biologie Intégrative (CBI) Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Toulouse Mind & Brain Institut (TMBI) Université Toulouse - Jean Jaurès (UT2J) Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J) Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT) |
format |
Article in Journal/Newspaper |
author |
Chevallay, Mathilde Jeanniard Du Dot, Tiphaine Goulet, Pauline Fonvieille, Nadège Craig, Cassandra Picard, Baptiste Guinet, Christophe |
author_facet |
Chevallay, Mathilde Jeanniard Du Dot, Tiphaine Goulet, Pauline Fonvieille, Nadège Craig, Cassandra Picard, Baptiste Guinet, Christophe |
author_sort |
Chevallay, Mathilde |
title |
Spies of the deep: An animal-borne active sonar and bioluminescence tag to characterise mesopelagic prey size and behaviour in distinct oceanographic domains |
title_short |
Spies of the deep: An animal-borne active sonar and bioluminescence tag to characterise mesopelagic prey size and behaviour in distinct oceanographic domains |
title_full |
Spies of the deep: An animal-borne active sonar and bioluminescence tag to characterise mesopelagic prey size and behaviour in distinct oceanographic domains |
title_fullStr |
Spies of the deep: An animal-borne active sonar and bioluminescence tag to characterise mesopelagic prey size and behaviour in distinct oceanographic domains |
title_full_unstemmed |
Spies of the deep: An animal-borne active sonar and bioluminescence tag to characterise mesopelagic prey size and behaviour in distinct oceanographic domains |
title_sort |
spies of the deep: an animal-borne active sonar and bioluminescence tag to characterise mesopelagic prey size and behaviour in distinct oceanographic domains |
publisher |
HAL CCSD |
publishDate |
2024 |
url |
https://hal.science/hal-04361222 https://doi.org/10.1016/j.dsr.2023.104214 |
genre |
Elephant Seals Mirounga leonina Southern Elephant Seals |
genre_facet |
Elephant Seals Mirounga leonina Southern Elephant Seals |
op_source |
ISSN: 0967-0637 Deep Sea Research Part I: Oceanographic Research Papers https://hal.science/hal-04361222 Deep Sea Research Part I: Oceanographic Research Papers, 2024, 203, pp.104214. ⟨10.1016/j.dsr.2023.104214⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr.2023.104214 hal-04361222 https://hal.science/hal-04361222 doi:10.1016/j.dsr.2023.104214 WOS: 001141174500001 |
op_doi |
https://doi.org/10.1016/j.dsr.2023.104214 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
203 |
container_start_page |
104214 |
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