Wild harbour porpoises startle and flee at low received levels from acoustic harassment device
Acoustic Harassment Devices (AHD) are widely used to deter marine mammals from aquaculture depredation, and from pile driving operations that may otherwise cause hearing damage. However, little is known about the behavioural and physiological effects of these devices. Here, we investigate the physio...
Published in: | Scientific Reports |
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Main Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2023
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Online Access: | https://pure.au.dk/portal/da/publications/wild-harbour-porpoises-startle-and-flee-at-low-received-levels-from-acoustic-harassment-device(6f63458d-b6d6-4a6d-b065-37c146b5fd65).html https://doi.org/10.1038/s41598-023-43453-8 http://www.scopus.com/inward/record.url?scp=85173763701&partnerID=8YFLogxK |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/6f63458d-b6d6-4a6d-b065-37c146b5fd65 2023-12-31T10:22:01+01:00 Wild harbour porpoises startle and flee at low received levels from acoustic harassment device Elmegaard, Siri L Teilmann, Jonas Rojano-Doñate, Laia Brennecke, Dennis Mikkelsen, Lonnie Balle, Jeppe D Gosewinkel, Ulrich Kyhn, Line A Tønnesen, Pernille Wahlberg, Magnus Ruser, Andreas Siebert, Ursula Madsen, Peter Teglberg 2023-12 https://pure.au.dk/portal/da/publications/wild-harbour-porpoises-startle-and-flee-at-low-received-levels-from-acoustic-harassment-device(6f63458d-b6d6-4a6d-b065-37c146b5fd65).html https://doi.org/10.1038/s41598-023-43453-8 http://www.scopus.com/inward/record.url?scp=85173763701&partnerID=8YFLogxK eng eng https://pure.au.dk/portal/da/publications/wild-harbour-porpoises-startle-and-flee-at-low-received-levels-from-acoustic-harassment-device(6f63458d-b6d6-4a6d-b065-37c146b5fd65).html info:eu-repo/semantics/openAccess Elmegaard , S L , Teilmann , J , Rojano-Doñate , L , Brennecke , D , Mikkelsen , L , Balle , J D , Gosewinkel , U , Kyhn , L A , Tønnesen , P , Wahlberg , M , Ruser , A , Siebert , U & Madsen , P T 2023 , ' Wild harbour porpoises startle and flee at low received levels from acoustic harassment device ' , Scientific Reports , vol. 13 , no. 1 , 16691 . https://doi.org/10.1038/s41598-023-43453-8 Acoustics Animals Noise/adverse effects Phocoena/physiology Porpoises Reflex Startle Sound article 2023 ftuniaarhuspubl https://doi.org/10.1038/s41598-023-43453-8 2023-12-07T00:06:36Z Acoustic Harassment Devices (AHD) are widely used to deter marine mammals from aquaculture depredation, and from pile driving operations that may otherwise cause hearing damage. However, little is known about the behavioural and physiological effects of these devices. Here, we investigate the physiological and behavioural responses of harbour porpoises (Phocoena phocoena) to a commercial AHD in Danish waters. Six porpoises were tagged with suction-cup-attached DTAGs recording sound, 3D-movement, and GPS (n = 3) or electrocardiogram (n = 2). They were then exposed to AHDs for 15 min, with initial received levels (RL) ranging from 98 to 132 dB re 1 µPa (rms-fast, 125 ms) and initial exposure ranges of 0.9-7 km. All animals reacted by displaying a mixture of acoustic startle responses, fleeing, altered echolocation behaviour, and by demonstrating unusual tachycardia while diving. Moreover, during the 15-min exposures, half of the animals received cumulative sound doses close to published thresholds for temporary auditory threshold shifts. We conclude that AHD exposure at many km can evoke both startle, flight and cardiac responses which may impact blood-gas management, breath-hold capability, energy balance, stress level and risk of by-catch. We posit that current AHDs are too powerful for mitigation use to prevent hearing damage of porpoises from offshore construction. Article in Journal/Newspaper Phocoena phocoena Aarhus University: Research Scientific Reports 13 1 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Acoustics Animals Noise/adverse effects Phocoena/physiology Porpoises Reflex Startle Sound |
spellingShingle |
Acoustics Animals Noise/adverse effects Phocoena/physiology Porpoises Reflex Startle Sound Elmegaard, Siri L Teilmann, Jonas Rojano-Doñate, Laia Brennecke, Dennis Mikkelsen, Lonnie Balle, Jeppe D Gosewinkel, Ulrich Kyhn, Line A Tønnesen, Pernille Wahlberg, Magnus Ruser, Andreas Siebert, Ursula Madsen, Peter Teglberg Wild harbour porpoises startle and flee at low received levels from acoustic harassment device |
topic_facet |
Acoustics Animals Noise/adverse effects Phocoena/physiology Porpoises Reflex Startle Sound |
description |
Acoustic Harassment Devices (AHD) are widely used to deter marine mammals from aquaculture depredation, and from pile driving operations that may otherwise cause hearing damage. However, little is known about the behavioural and physiological effects of these devices. Here, we investigate the physiological and behavioural responses of harbour porpoises (Phocoena phocoena) to a commercial AHD in Danish waters. Six porpoises were tagged with suction-cup-attached DTAGs recording sound, 3D-movement, and GPS (n = 3) or electrocardiogram (n = 2). They were then exposed to AHDs for 15 min, with initial received levels (RL) ranging from 98 to 132 dB re 1 µPa (rms-fast, 125 ms) and initial exposure ranges of 0.9-7 km. All animals reacted by displaying a mixture of acoustic startle responses, fleeing, altered echolocation behaviour, and by demonstrating unusual tachycardia while diving. Moreover, during the 15-min exposures, half of the animals received cumulative sound doses close to published thresholds for temporary auditory threshold shifts. We conclude that AHD exposure at many km can evoke both startle, flight and cardiac responses which may impact blood-gas management, breath-hold capability, energy balance, stress level and risk of by-catch. We posit that current AHDs are too powerful for mitigation use to prevent hearing damage of porpoises from offshore construction. |
format |
Article in Journal/Newspaper |
author |
Elmegaard, Siri L Teilmann, Jonas Rojano-Doñate, Laia Brennecke, Dennis Mikkelsen, Lonnie Balle, Jeppe D Gosewinkel, Ulrich Kyhn, Line A Tønnesen, Pernille Wahlberg, Magnus Ruser, Andreas Siebert, Ursula Madsen, Peter Teglberg |
author_facet |
Elmegaard, Siri L Teilmann, Jonas Rojano-Doñate, Laia Brennecke, Dennis Mikkelsen, Lonnie Balle, Jeppe D Gosewinkel, Ulrich Kyhn, Line A Tønnesen, Pernille Wahlberg, Magnus Ruser, Andreas Siebert, Ursula Madsen, Peter Teglberg |
author_sort |
Elmegaard, Siri L |
title |
Wild harbour porpoises startle and flee at low received levels from acoustic harassment device |
title_short |
Wild harbour porpoises startle and flee at low received levels from acoustic harassment device |
title_full |
Wild harbour porpoises startle and flee at low received levels from acoustic harassment device |
title_fullStr |
Wild harbour porpoises startle and flee at low received levels from acoustic harassment device |
title_full_unstemmed |
Wild harbour porpoises startle and flee at low received levels from acoustic harassment device |
title_sort |
wild harbour porpoises startle and flee at low received levels from acoustic harassment device |
publishDate |
2023 |
url |
https://pure.au.dk/portal/da/publications/wild-harbour-porpoises-startle-and-flee-at-low-received-levels-from-acoustic-harassment-device(6f63458d-b6d6-4a6d-b065-37c146b5fd65).html https://doi.org/10.1038/s41598-023-43453-8 http://www.scopus.com/inward/record.url?scp=85173763701&partnerID=8YFLogxK |
genre |
Phocoena phocoena |
genre_facet |
Phocoena phocoena |
op_source |
Elmegaard , S L , Teilmann , J , Rojano-Doñate , L , Brennecke , D , Mikkelsen , L , Balle , J D , Gosewinkel , U , Kyhn , L A , Tønnesen , P , Wahlberg , M , Ruser , A , Siebert , U & Madsen , P T 2023 , ' Wild harbour porpoises startle and flee at low received levels from acoustic harassment device ' , Scientific Reports , vol. 13 , no. 1 , 16691 . https://doi.org/10.1038/s41598-023-43453-8 |
op_relation |
https://pure.au.dk/portal/da/publications/wild-harbour-porpoises-startle-and-flee-at-low-received-levels-from-acoustic-harassment-device(6f63458d-b6d6-4a6d-b065-37c146b5fd65).html |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s41598-023-43453-8 |
container_title |
Scientific Reports |
container_volume |
13 |
container_issue |
1 |
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1786833004988989440 |