Flipper strokes can predict energy expenditure and locomotion costs in free-ranging northern and Antarctic fur seals
Flipper strokes have been proposed as proxies to estimate the energy expended by marine vertebrates while foraging at sea, but this has never been validated on free-ranging otariids (fur seals and sea lions). Our goal was to investigate how well flipper strokes correlate with energy expenditure in 3...
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ftpubmed:oai:pubmedcentral.nih.gov:5034273 2023-05-15T13:56:31+02:00 Flipper strokes can predict energy expenditure and locomotion costs in free-ranging northern and Antarctic fur seals Jeanniard-du-Dot, Tiphaine Trites, Andrew W. Arnould, John P. Y. Speakman, John R. Guinet, Christophe 2016-09-23 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5034273/ http://www.ncbi.nlm.nih.gov/pubmed/27658718 https://doi.org/10.1038/srep33912 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5034273/ http://www.ncbi.nlm.nih.gov/pubmed/27658718 http://dx.doi.org/10.1038/srep33912 Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ CC-BY Article Text 2016 ftpubmed https://doi.org/10.1038/srep33912 2016-10-02T00:16:05Z Flipper strokes have been proposed as proxies to estimate the energy expended by marine vertebrates while foraging at sea, but this has never been validated on free-ranging otariids (fur seals and sea lions). Our goal was to investigate how well flipper strokes correlate with energy expenditure in 33 foraging northern and Antarctic fur seals equipped with accelerometers, GPS, and time-depth recorders. We concomitantly measured field metabolic rates with the doubly-labelled water method and derived activity-specific energy expenditures using fine-scale time-activity budgets for each seal. Flipper strokes were detected while diving or surface transiting using dynamic acceleration. Despite some inter-species differences in flipper stroke dynamics or frequencies, both species of fur seals spent 3.79 ± 0.39 J/kg per stroke and had a cost of transport of ~1.6–1.9 J/kg/m while diving. Also, flipper stroke counts were good predictors of energy spent while diving (R2 = 0.76) and to a lesser extent while transiting (R2 = 0.63). However, flipper stroke count was a poor predictor overall of total energy spent during a full foraging trip (R2 = 0.50). Amplitude of flipper strokes (i.e., acceleration amplitude × number of strokes) predicted total energy expenditure (R2 = 0.63) better than flipper stroke counts, but was not as accurate as other acceleration-based proxies, i.e. Overall Dynamic Body Acceleration. Text Antarc* Antarctic Antarctic Fur Seals PubMed Central (PMC) Antarctic Scientific Reports 6 1 |
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Article Jeanniard-du-Dot, Tiphaine Trites, Andrew W. Arnould, John P. Y. Speakman, John R. Guinet, Christophe Flipper strokes can predict energy expenditure and locomotion costs in free-ranging northern and Antarctic fur seals |
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Flipper strokes have been proposed as proxies to estimate the energy expended by marine vertebrates while foraging at sea, but this has never been validated on free-ranging otariids (fur seals and sea lions). Our goal was to investigate how well flipper strokes correlate with energy expenditure in 33 foraging northern and Antarctic fur seals equipped with accelerometers, GPS, and time-depth recorders. We concomitantly measured field metabolic rates with the doubly-labelled water method and derived activity-specific energy expenditures using fine-scale time-activity budgets for each seal. Flipper strokes were detected while diving or surface transiting using dynamic acceleration. Despite some inter-species differences in flipper stroke dynamics or frequencies, both species of fur seals spent 3.79 ± 0.39 J/kg per stroke and had a cost of transport of ~1.6–1.9 J/kg/m while diving. Also, flipper stroke counts were good predictors of energy spent while diving (R2 = 0.76) and to a lesser extent while transiting (R2 = 0.63). However, flipper stroke count was a poor predictor overall of total energy spent during a full foraging trip (R2 = 0.50). Amplitude of flipper strokes (i.e., acceleration amplitude × number of strokes) predicted total energy expenditure (R2 = 0.63) better than flipper stroke counts, but was not as accurate as other acceleration-based proxies, i.e. Overall Dynamic Body Acceleration. |
format |
Text |
author |
Jeanniard-du-Dot, Tiphaine Trites, Andrew W. Arnould, John P. Y. Speakman, John R. Guinet, Christophe |
author_facet |
Jeanniard-du-Dot, Tiphaine Trites, Andrew W. Arnould, John P. Y. Speakman, John R. Guinet, Christophe |
author_sort |
Jeanniard-du-Dot, Tiphaine |
title |
Flipper strokes can predict energy expenditure and locomotion costs in free-ranging northern and Antarctic fur seals |
title_short |
Flipper strokes can predict energy expenditure and locomotion costs in free-ranging northern and Antarctic fur seals |
title_full |
Flipper strokes can predict energy expenditure and locomotion costs in free-ranging northern and Antarctic fur seals |
title_fullStr |
Flipper strokes can predict energy expenditure and locomotion costs in free-ranging northern and Antarctic fur seals |
title_full_unstemmed |
Flipper strokes can predict energy expenditure and locomotion costs in free-ranging northern and Antarctic fur seals |
title_sort |
flipper strokes can predict energy expenditure and locomotion costs in free-ranging northern and antarctic fur seals |
publisher |
Nature Publishing Group |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5034273/ http://www.ncbi.nlm.nih.gov/pubmed/27658718 https://doi.org/10.1038/srep33912 |
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Antarctic |
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Antarctic |
genre |
Antarc* Antarctic Antarctic Fur Seals |
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Antarc* Antarctic Antarctic Fur Seals |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5034273/ http://www.ncbi.nlm.nih.gov/pubmed/27658718 http://dx.doi.org/10.1038/srep33912 |
op_rights |
Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
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CC-BY |
op_doi |
https://doi.org/10.1038/srep33912 |
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Scientific Reports |
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6 |
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