Towards non-invasive heart rate monitoring in free-ranging cetaceans: a unipolar suction cup tag measured the heart rate of trained Risso's dolphins
Heart rate monitoring in free-ranging cetaceans to understand their behavioural ecology and diving physiology is challenging. Here, we developed a simple, non-invasive method to monitor the heart rate of cetaceans in the field using an electrocardiogram-measuring device and a single suction cup equi...
Published in: | Philosophical Transactions of the Royal Society B: Biological Sciences |
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Online Access: | http://dx.doi.org/10.1098/rstb.2020.0225 https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.2020.0225 https://royalsocietypublishing.org/doi/full-xml/10.1098/rstb.2020.0225 |
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crroyalsociety:10.1098/rstb.2020.0225 2024-09-15T18:16:42+00:00 Towards non-invasive heart rate monitoring in free-ranging cetaceans: a unipolar suction cup tag measured the heart rate of trained Risso's dolphins Aoki, Kagari Watanabe, Yurie Inamori, Daiki Funasaka, Noriko Sakamoto, Kentaro Q. 2021 http://dx.doi.org/10.1098/rstb.2020.0225 https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.2020.0225 https://royalsocietypublishing.org/doi/full-xml/10.1098/rstb.2020.0225 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Philosophical Transactions of the Royal Society B: Biological Sciences volume 376, issue 1831, page 20200225 ISSN 0962-8436 1471-2970 journal-article 2021 crroyalsociety https://doi.org/10.1098/rstb.2020.0225 2024-06-24T04:28:22Z Heart rate monitoring in free-ranging cetaceans to understand their behavioural ecology and diving physiology is challenging. Here, we developed a simple, non-invasive method to monitor the heart rate of cetaceans in the field using an electrocardiogram-measuring device and a single suction cup equipped with an electrode. The unipolar suction cup was placed on the left lateral body surface behind the pectoral fin of Risso's dolphins ( Grampus griseus ) and a false killer whale ( Pseudorca crassidens ) in captivity; their heart rate was successfully monitored. We observed large heart rate oscillations corresponding to respiration in the motionless whales during surfacing (a false killer whale, mean 47 bpm, range 20–75 bpm; Risso's dolphins, mean ± s.d. 61 ± 15 bpm, range 28–120 bpm, n = 4 individuals), which was consistent with the sinus arrhythmia pattern (eupneic tachycardia and apneic bradycardia) observed in other cetaceans. Immediately after respiration, the heart rate rapidly increased to approximately twice that observed prior to the breath. Heart rate then gradually decreased at around 20–50 s and remained relatively constant until the next breath. Furthermore, we successfully monitored the heart rate of a free-swimming Risso's dolphin. The all-in-one suction cup device is feasible for field use without restraining animals and is helpful in further understanding the diving physiology of free-ranging cetaceans. This article is part of the theme issue ‘Measuring physiology in free-living animals (Part II)’. Article in Journal/Newspaper Killer Whale The Royal Society Philosophical Transactions of the Royal Society B: Biological Sciences 376 1831 20200225 |
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crroyalsociety |
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English |
description |
Heart rate monitoring in free-ranging cetaceans to understand their behavioural ecology and diving physiology is challenging. Here, we developed a simple, non-invasive method to monitor the heart rate of cetaceans in the field using an electrocardiogram-measuring device and a single suction cup equipped with an electrode. The unipolar suction cup was placed on the left lateral body surface behind the pectoral fin of Risso's dolphins ( Grampus griseus ) and a false killer whale ( Pseudorca crassidens ) in captivity; their heart rate was successfully monitored. We observed large heart rate oscillations corresponding to respiration in the motionless whales during surfacing (a false killer whale, mean 47 bpm, range 20–75 bpm; Risso's dolphins, mean ± s.d. 61 ± 15 bpm, range 28–120 bpm, n = 4 individuals), which was consistent with the sinus arrhythmia pattern (eupneic tachycardia and apneic bradycardia) observed in other cetaceans. Immediately after respiration, the heart rate rapidly increased to approximately twice that observed prior to the breath. Heart rate then gradually decreased at around 20–50 s and remained relatively constant until the next breath. Furthermore, we successfully monitored the heart rate of a free-swimming Risso's dolphin. The all-in-one suction cup device is feasible for field use without restraining animals and is helpful in further understanding the diving physiology of free-ranging cetaceans. This article is part of the theme issue ‘Measuring physiology in free-living animals (Part II)’. |
format |
Article in Journal/Newspaper |
author |
Aoki, Kagari Watanabe, Yurie Inamori, Daiki Funasaka, Noriko Sakamoto, Kentaro Q. |
spellingShingle |
Aoki, Kagari Watanabe, Yurie Inamori, Daiki Funasaka, Noriko Sakamoto, Kentaro Q. Towards non-invasive heart rate monitoring in free-ranging cetaceans: a unipolar suction cup tag measured the heart rate of trained Risso's dolphins |
author_facet |
Aoki, Kagari Watanabe, Yurie Inamori, Daiki Funasaka, Noriko Sakamoto, Kentaro Q. |
author_sort |
Aoki, Kagari |
title |
Towards non-invasive heart rate monitoring in free-ranging cetaceans: a unipolar suction cup tag measured the heart rate of trained Risso's dolphins |
title_short |
Towards non-invasive heart rate monitoring in free-ranging cetaceans: a unipolar suction cup tag measured the heart rate of trained Risso's dolphins |
title_full |
Towards non-invasive heart rate monitoring in free-ranging cetaceans: a unipolar suction cup tag measured the heart rate of trained Risso's dolphins |
title_fullStr |
Towards non-invasive heart rate monitoring in free-ranging cetaceans: a unipolar suction cup tag measured the heart rate of trained Risso's dolphins |
title_full_unstemmed |
Towards non-invasive heart rate monitoring in free-ranging cetaceans: a unipolar suction cup tag measured the heart rate of trained Risso's dolphins |
title_sort |
towards non-invasive heart rate monitoring in free-ranging cetaceans: a unipolar suction cup tag measured the heart rate of trained risso's dolphins |
publisher |
The Royal Society |
publishDate |
2021 |
url |
http://dx.doi.org/10.1098/rstb.2020.0225 https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.2020.0225 https://royalsocietypublishing.org/doi/full-xml/10.1098/rstb.2020.0225 |
genre |
Killer Whale |
genre_facet |
Killer Whale |
op_source |
Philosophical Transactions of the Royal Society B: Biological Sciences volume 376, issue 1831, page 20200225 ISSN 0962-8436 1471-2970 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rstb.2020.0225 |
container_title |
Philosophical Transactions of the Royal Society B: Biological Sciences |
container_volume |
376 |
container_issue |
1831 |
container_start_page |
20200225 |
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1810454718144577536 |