Department of Biology

Aarhus University Seal / Aarhus Universitets segl

Professor Peter Teglberg Madsen

Drivers of the dive response in trained harbour porpoises (Phocoena phocoena)

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Standard

Drivers of the dive response in trained harbour porpoises (Phocoena phocoena). / Elmegaard, Siri L.; McDonald, Birgitte I.; Madsen, Peter T.

In: The Journal of Experimental Biology, Vol. 222, 2019.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Harvard

Elmegaard, SL, McDonald, BI & Madsen, PT 2019, 'Drivers of the dive response in trained harbour porpoises (Phocoena phocoena)', The Journal of Experimental Biology, vol. 222. https://doi.org/10.1242/jeb.208637

APA

Elmegaard, S. L., McDonald, B. I., & Madsen, P. T. (2019). Drivers of the dive response in trained harbour porpoises (Phocoena phocoena). The Journal of Experimental Biology, 222. https://doi.org/10.1242/jeb.208637

CBE

MLA

Elmegaard, Siri L., Birgitte I. McDonald, and Peter T. Madsen. "Drivers of the dive response in trained harbour porpoises (Phocoena phocoena)". The Journal of Experimental Biology. 2019. 222. https://doi.org/10.1242/jeb.208637

Vancouver

Author

Elmegaard, Siri L. ; McDonald, Birgitte I. ; Madsen, Peter T. / Drivers of the dive response in trained harbour porpoises (Phocoena phocoena). In: The Journal of Experimental Biology. 2019 ; Vol. 222.

Bibtex

@article{527ac4b4f614455586d83d15cb5f291f,
title = "Drivers of the dive response in trained harbour porpoises (Phocoena phocoena)",
abstract = "Pronounced dive responses through peripheral vasoconstriction and bradycardia enable prolonged apnoea in marine mammals. For most vertebrates, the dive response is initiated upon face immersion, but little is known about the physical drivers of diving and surfacing heart rate in cetaceans whose faces are always mostly submerged. Using two trained harbour porpoises instrumented with an ECG-measuring sound-and-movement tag (DTAG-3), we investigated the initiation and progression of bradycardia and tachycardia during apnoea and eupnoea for varying levels of immersion. We show that paranasal wetting drives bradycardia initiation and progression, whereas apnoea leads to dive-level bradycardia eventually, but not instantly. At the end of dives, heart rate accelerates independently of lung expansion, perhaps in anticipation of surfacing; however, full tachycardia is only engaged upon inhalation. We conclude that breathing drives surface tachycardia, whereas blowhole wetting is an important driver of bradycardia; however, anticipatory/volitional modulation can overrule such responses to sensory inputs.",
keywords = "Anticipation, Bradycardia, Cetacean, Heart rate, Submersion, Tachycardia",
author = "Elmegaard, {Siri L.} and McDonald, {Birgitte I.} and Madsen, {Peter T.}",
year = "2019",
doi = "10.1242/jeb.208637",
language = "English",
volume = "222",
journal = "BRITISH JOURNAL OF EXPERIMENTAL BIOLOGY",
issn = "0022-0949",
publisher = "The/Company of Biologists Ltd.",

}

RIS

TY - JOUR

T1 - Drivers of the dive response in trained harbour porpoises (Phocoena phocoena)

AU - Elmegaard, Siri L.

AU - McDonald, Birgitte I.

AU - Madsen, Peter T.

PY - 2019

Y1 - 2019

N2 - Pronounced dive responses through peripheral vasoconstriction and bradycardia enable prolonged apnoea in marine mammals. For most vertebrates, the dive response is initiated upon face immersion, but little is known about the physical drivers of diving and surfacing heart rate in cetaceans whose faces are always mostly submerged. Using two trained harbour porpoises instrumented with an ECG-measuring sound-and-movement tag (DTAG-3), we investigated the initiation and progression of bradycardia and tachycardia during apnoea and eupnoea for varying levels of immersion. We show that paranasal wetting drives bradycardia initiation and progression, whereas apnoea leads to dive-level bradycardia eventually, but not instantly. At the end of dives, heart rate accelerates independently of lung expansion, perhaps in anticipation of surfacing; however, full tachycardia is only engaged upon inhalation. We conclude that breathing drives surface tachycardia, whereas blowhole wetting is an important driver of bradycardia; however, anticipatory/volitional modulation can overrule such responses to sensory inputs.

AB - Pronounced dive responses through peripheral vasoconstriction and bradycardia enable prolonged apnoea in marine mammals. For most vertebrates, the dive response is initiated upon face immersion, but little is known about the physical drivers of diving and surfacing heart rate in cetaceans whose faces are always mostly submerged. Using two trained harbour porpoises instrumented with an ECG-measuring sound-and-movement tag (DTAG-3), we investigated the initiation and progression of bradycardia and tachycardia during apnoea and eupnoea for varying levels of immersion. We show that paranasal wetting drives bradycardia initiation and progression, whereas apnoea leads to dive-level bradycardia eventually, but not instantly. At the end of dives, heart rate accelerates independently of lung expansion, perhaps in anticipation of surfacing; however, full tachycardia is only engaged upon inhalation. We conclude that breathing drives surface tachycardia, whereas blowhole wetting is an important driver of bradycardia; however, anticipatory/volitional modulation can overrule such responses to sensory inputs.

KW - Anticipation

KW - Bradycardia

KW - Cetacean

KW - Heart rate

KW - Submersion

KW - Tachycardia

UR - http://www.scopus.com/inward/record.url?scp=85072905352&partnerID=8YFLogxK

U2 - 10.1242/jeb.208637

DO - 10.1242/jeb.208637

M3 - Journal article

C2 - 31511341

AN - SCOPUS:85072905352

VL - 222

JO - BRITISH JOURNAL OF EXPERIMENTAL BIOLOGY

JF - BRITISH JOURNAL OF EXPERIMENTAL BIOLOGY

SN - 0022-0949

ER -