From high‑resolution to low‑resolution dive datasets: a new index to quantify the foraging effort of marine predators
International audience BackgroundIn the last decade, thousands of satellite-relayed data loggers (SRDLs) have been deployed, providing large datasets on marine predator movement patterns at sea and their diving behaviour. However, the latter is in a highly summarised, low-resolution form, from which...
Published in: | Animal Biotelemetry |
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Main Authors: | , , , |
Other Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2015
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Online Access: | https://hal.archives-ouvertes.fr/hal-01328655 https://hal.archives-ouvertes.fr/hal-01328655/document https://hal.archives-ouvertes.fr/hal-01328655/file/art_10.1186_s40317-015-0074-3.pdf https://doi.org/10.1186/s40317-015-0074-3 |
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ftccsdartic:oai:HAL:hal-01328655v1 |
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record_format |
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 |
Foraging behaviour Marine ecology Dive profile Accelerometers Satellite-linked time depth recorders Method Pinnipeds Argos tags [SDE]Environmental Sciences |
spellingShingle |
Foraging behaviour Marine ecology Dive profile Accelerometers Satellite-linked time depth recorders Method Pinnipeds Argos tags [SDE]Environmental Sciences Heerah, Karine Hindell, Mark A. Guinet, Christophe Charrassin, Jean-Benoît From high‑resolution to low‑resolution dive datasets: a new index to quantify the foraging effort of marine predators |
topic_facet |
Foraging behaviour Marine ecology Dive profile Accelerometers Satellite-linked time depth recorders Method Pinnipeds Argos tags [SDE]Environmental Sciences |
description |
International audience BackgroundIn the last decade, thousands of satellite-relayed data loggers (SRDLs) have been deployed, providing large datasets on marine predator movement patterns at sea and their diving behaviour. However, the latter is in a highly summarised, low-resolution form, from which it is difficult to make the sorts of important behavioural inferences that are possible from higher-resolution datasets (such as detection of likely foraging events). The main objective of this study was to develop a simple, but accurate tool to detect and quantify within-dive foraging periods in low-resolution dives.MethodTwo southern elephant seals were fitted with a head-mounted time depth recorder (TDR) (recording depth at 1 Hz) and an accelerometer (recording 3 axes of acceleration at 16 Hz) from which prey capture attempts were estimated (PrCA), and a Weddell seal was also fitted with a TDR (1 Hz).The resulting high-resolution dive profiles were used to: (1) calculate an accurate index of foraging effort based on the detection of vertical sinuosity switches (i.e. hunting highres time); (2) produce an SRDL-equivalent low-resolution dataset using a broken stick algorithm; and (3) from each low-resolution dive calculate a set of candidate foraging effort indices.ResultsHunting lowres time, which is the total time spent in decreased vertical velocity segments of the dive, was the foraging effort index that best correlated with hunting highres time. Hunting highres mode of SES dives (highly sinuous parts of high-resolution dives) was associated with 77 % of total PrCA. In comparison, Hunting lowres segments of SES dives were associated with 68 % of PrCA as well as with four times more PrCA than transit lowres segments.ConclusionWe found a low-resolution index which indicates foraging activity within a highly summarised dive profile and which identified most PrCA, despite degraded information transmitted by SLDRs. Used in combination with other measurements of the in situ environment, the hunting lowres index could ... |
author2 |
Processus de couplage à Petite Echelle, Ecosystèmes et Prédateurs Supérieurs (PEPS) 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)-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)) 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) Institute for Marine and Antarctic Studies Horbat (IMAS) University of Tasmania Hobart, Australia (UTAS) Antarctic Climate & Ecosystem Cooperative Research Centre 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) ANR-07-VULN-0005,IPSOS-SEAL,Investigation of the vulnerability of the productivity of the Southern Ocean Subsystems to climate change: the Southern Elephant seal assessment from mid to high latitudes(2007) |
format |
Article in Journal/Newspaper |
author |
Heerah, Karine Hindell, Mark A. Guinet, Christophe Charrassin, Jean-Benoît |
author_facet |
Heerah, Karine Hindell, Mark A. Guinet, Christophe Charrassin, Jean-Benoît |
author_sort |
Heerah, Karine |
title |
From high‑resolution to low‑resolution dive datasets: a new index to quantify the foraging effort of marine predators |
title_short |
From high‑resolution to low‑resolution dive datasets: a new index to quantify the foraging effort of marine predators |
title_full |
From high‑resolution to low‑resolution dive datasets: a new index to quantify the foraging effort of marine predators |
title_fullStr |
From high‑resolution to low‑resolution dive datasets: a new index to quantify the foraging effort of marine predators |
title_full_unstemmed |
From high‑resolution to low‑resolution dive datasets: a new index to quantify the foraging effort of marine predators |
title_sort |
from high‑resolution to low‑resolution dive datasets: a new index to quantify the foraging effort of marine predators |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://hal.archives-ouvertes.fr/hal-01328655 https://hal.archives-ouvertes.fr/hal-01328655/document https://hal.archives-ouvertes.fr/hal-01328655/file/art_10.1186_s40317-015-0074-3.pdf https://doi.org/10.1186/s40317-015-0074-3 |
geographic |
Weddell |
geographic_facet |
Weddell |
genre |
Elephant Seals Southern Elephant Seals Weddell Seal |
genre_facet |
Elephant Seals Southern Elephant Seals Weddell Seal |
op_source |
ISSN: 2050-3385 Animal Biotelemetry https://hal.archives-ouvertes.fr/hal-01328655 Animal Biotelemetry, BioMed Central, 2015, 3, pp.42. ⟨10.1186/s40317-015-0074-3⟩ http://animalbiotelemetry.biomedcentral.com/articles/10.1186/s40317-015-0074-3 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1186/s40317-015-0074-3 hal-01328655 https://hal.archives-ouvertes.fr/hal-01328655 https://hal.archives-ouvertes.fr/hal-01328655/document https://hal.archives-ouvertes.fr/hal-01328655/file/art_10.1186_s40317-015-0074-3.pdf doi:10.1186/s40317-015-0074-3 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1186/s40317-015-0074-3 |
container_title |
Animal Biotelemetry |
container_volume |
3 |
container_issue |
1 |
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1766401659236253696 |
spelling |
ftccsdartic:oai:HAL:hal-01328655v1 2023-05-15T16:05:46+02:00 From high‑resolution to low‑resolution dive datasets: a new index to quantify the foraging effort of marine predators Heerah, Karine Hindell, Mark A. Guinet, Christophe Charrassin, Jean-Benoît Processus de couplage à Petite Echelle, Ecosystèmes et Prédateurs Supérieurs (PEPS) 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)-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)) 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) Institute for Marine and Antarctic Studies Horbat (IMAS) University of Tasmania Hobart, Australia (UTAS) Antarctic Climate & Ecosystem Cooperative Research Centre 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) ANR-07-VULN-0005,IPSOS-SEAL,Investigation of the vulnerability of the productivity of the Southern Ocean Subsystems to climate change: the Southern Elephant seal assessment from mid to high latitudes(2007) 2015 https://hal.archives-ouvertes.fr/hal-01328655 https://hal.archives-ouvertes.fr/hal-01328655/document https://hal.archives-ouvertes.fr/hal-01328655/file/art_10.1186_s40317-015-0074-3.pdf https://doi.org/10.1186/s40317-015-0074-3 en eng HAL CCSD BioMed Central info:eu-repo/semantics/altIdentifier/doi/10.1186/s40317-015-0074-3 hal-01328655 https://hal.archives-ouvertes.fr/hal-01328655 https://hal.archives-ouvertes.fr/hal-01328655/document https://hal.archives-ouvertes.fr/hal-01328655/file/art_10.1186_s40317-015-0074-3.pdf doi:10.1186/s40317-015-0074-3 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 2050-3385 Animal Biotelemetry https://hal.archives-ouvertes.fr/hal-01328655 Animal Biotelemetry, BioMed Central, 2015, 3, pp.42. ⟨10.1186/s40317-015-0074-3⟩ http://animalbiotelemetry.biomedcentral.com/articles/10.1186/s40317-015-0074-3 Foraging behaviour Marine ecology Dive profile Accelerometers Satellite-linked time depth recorders Method Pinnipeds Argos tags [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2015 ftccsdartic https://doi.org/10.1186/s40317-015-0074-3 2021-12-05T02:59:11Z International audience BackgroundIn the last decade, thousands of satellite-relayed data loggers (SRDLs) have been deployed, providing large datasets on marine predator movement patterns at sea and their diving behaviour. However, the latter is in a highly summarised, low-resolution form, from which it is difficult to make the sorts of important behavioural inferences that are possible from higher-resolution datasets (such as detection of likely foraging events). The main objective of this study was to develop a simple, but accurate tool to detect and quantify within-dive foraging periods in low-resolution dives.MethodTwo southern elephant seals were fitted with a head-mounted time depth recorder (TDR) (recording depth at 1 Hz) and an accelerometer (recording 3 axes of acceleration at 16 Hz) from which prey capture attempts were estimated (PrCA), and a Weddell seal was also fitted with a TDR (1 Hz).The resulting high-resolution dive profiles were used to: (1) calculate an accurate index of foraging effort based on the detection of vertical sinuosity switches (i.e. hunting highres time); (2) produce an SRDL-equivalent low-resolution dataset using a broken stick algorithm; and (3) from each low-resolution dive calculate a set of candidate foraging effort indices.ResultsHunting lowres time, which is the total time spent in decreased vertical velocity segments of the dive, was the foraging effort index that best correlated with hunting highres time. Hunting highres mode of SES dives (highly sinuous parts of high-resolution dives) was associated with 77 % of total PrCA. In comparison, Hunting lowres segments of SES dives were associated with 68 % of PrCA as well as with four times more PrCA than transit lowres segments.ConclusionWe found a low-resolution index which indicates foraging activity within a highly summarised dive profile and which identified most PrCA, despite degraded information transmitted by SLDRs. Used in combination with other measurements of the in situ environment, the hunting lowres index could ... Article in Journal/Newspaper Elephant Seals Southern Elephant Seals Weddell Seal Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Weddell Animal Biotelemetry 3 1 |