High thresholds for avoidance of sonar by free-ranging long-finned pilot whales (Globicephala melas)
The potential effects of exposing marine mammals to military sonar is a current concern. Dose-response relationships are useful for predicting potential environmental impacts of specific operations. To reveal behavioral response thresholds of exposure to sonar, we conducted 18 exposure/control appro...
Published in: | Marine Pollution Bulletin |
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2014
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Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/high-thresholds-for-avoidance-of-sonar-by-freeranging-longfinned-pilot-whales-globicephala-melas(0c095b5b-75c5-4dd8-82d8-3508509124a3).html https://doi.org/10.1016/j.marpolbul.2014.03.056 |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/0c095b5b-75c5-4dd8-82d8-3508509124a3 2024-06-23T07:55:59+00:00 High thresholds for avoidance of sonar by free-ranging long-finned pilot whales (Globicephala melas) Antunes, R. Kvadsheim, P. H. Lam, F. P. A. Tyack, P. L. Thomas, L. Wensveen, P. J. Miller, P. J. O. 2014-06-15 https://research-portal.st-andrews.ac.uk/en/researchoutput/high-thresholds-for-avoidance-of-sonar-by-freeranging-longfinned-pilot-whales-globicephala-melas(0c095b5b-75c5-4dd8-82d8-3508509124a3).html https://doi.org/10.1016/j.marpolbul.2014.03.056 eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/high-thresholds-for-avoidance-of-sonar-by-freeranging-longfinned-pilot-whales-globicephala-melas(0c095b5b-75c5-4dd8-82d8-3508509124a3).html info:eu-repo/semantics/restrictedAccess Antunes , R , Kvadsheim , P H , Lam , F P A , Tyack , P L , Thomas , L , Wensveen , P J & Miller , P J O 2014 , ' High thresholds for avoidance of sonar by free-ranging long-finned pilot whales (Globicephala melas) ' , Marine Pollution Bulletin , vol. 83 , no. 1 , pp. 165-180 . https://doi.org/10.1016/j.marpolbul.2014.03.056 Sonar Pilot-whales Marine mammals Noise Dose-response AUDITORY-EVOKED POTENTIALS BEHAVIORAL-RESPONSES MILITARY SONAR KILLER WHALES ORCINUS-ORCA NAVY SONAR CETACEANS AMPLITUDE SIGNALS SOUND article 2014 ftunstandrewcris https://doi.org/10.1016/j.marpolbul.2014.03.056 2024-06-13T00:43:04Z The potential effects of exposing marine mammals to military sonar is a current concern. Dose-response relationships are useful for predicting potential environmental impacts of specific operations. To reveal behavioral response thresholds of exposure to sonar, we conducted 18 exposure/control approaches to 6 long-finned pilot whales. Source level and proximity of sonar transmitting one of two frequency bands (1-2 kHz and 6-7 kHz) were increased during exposure sessions. The 2-dimensional movement tracks were analyzed using a changepoint method to identify the avoidance response thresholds which were used to estimate dose-response relationships. No support for an effect of sonar frequency or previous exposures on the probability of response was found. Estimated response thresholds at which 50% of population show avoidance (SPLmax = 170 dB re 1 mu Pa, SELcum = 173 dB re 1 mu Pa-2 S) were higher than previously found for other cetaceans. The US Navy currently uses a generic dose-response relationship to predict the responses of cetaceans to naval active sonar, which has been found to underestimate behavioural impacts on killer whales and beaked whales. The navy curve appears to match more closely our results with long-finned pilot whales, though it might underestimate the probability of avoidance for pilot-whales at long distances from sonar sources. (C) 2014 Elsevier Ltd. All rights reserved. Article in Journal/Newspaper Orca Orcinus orca University of St Andrews: Research Portal Marine Pollution Bulletin 83 1 165 180 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Sonar Pilot-whales Marine mammals Noise Dose-response AUDITORY-EVOKED POTENTIALS BEHAVIORAL-RESPONSES MILITARY SONAR KILLER WHALES ORCINUS-ORCA NAVY SONAR CETACEANS AMPLITUDE SIGNALS SOUND |
spellingShingle |
Sonar Pilot-whales Marine mammals Noise Dose-response AUDITORY-EVOKED POTENTIALS BEHAVIORAL-RESPONSES MILITARY SONAR KILLER WHALES ORCINUS-ORCA NAVY SONAR CETACEANS AMPLITUDE SIGNALS SOUND Antunes, R. Kvadsheim, P. H. Lam, F. P. A. Tyack, P. L. Thomas, L. Wensveen, P. J. Miller, P. J. O. High thresholds for avoidance of sonar by free-ranging long-finned pilot whales (Globicephala melas) |
topic_facet |
Sonar Pilot-whales Marine mammals Noise Dose-response AUDITORY-EVOKED POTENTIALS BEHAVIORAL-RESPONSES MILITARY SONAR KILLER WHALES ORCINUS-ORCA NAVY SONAR CETACEANS AMPLITUDE SIGNALS SOUND |
description |
The potential effects of exposing marine mammals to military sonar is a current concern. Dose-response relationships are useful for predicting potential environmental impacts of specific operations. To reveal behavioral response thresholds of exposure to sonar, we conducted 18 exposure/control approaches to 6 long-finned pilot whales. Source level and proximity of sonar transmitting one of two frequency bands (1-2 kHz and 6-7 kHz) were increased during exposure sessions. The 2-dimensional movement tracks were analyzed using a changepoint method to identify the avoidance response thresholds which were used to estimate dose-response relationships. No support for an effect of sonar frequency or previous exposures on the probability of response was found. Estimated response thresholds at which 50% of population show avoidance (SPLmax = 170 dB re 1 mu Pa, SELcum = 173 dB re 1 mu Pa-2 S) were higher than previously found for other cetaceans. The US Navy currently uses a generic dose-response relationship to predict the responses of cetaceans to naval active sonar, which has been found to underestimate behavioural impacts on killer whales and beaked whales. The navy curve appears to match more closely our results with long-finned pilot whales, though it might underestimate the probability of avoidance for pilot-whales at long distances from sonar sources. (C) 2014 Elsevier Ltd. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Antunes, R. Kvadsheim, P. H. Lam, F. P. A. Tyack, P. L. Thomas, L. Wensveen, P. J. Miller, P. J. O. |
author_facet |
Antunes, R. Kvadsheim, P. H. Lam, F. P. A. Tyack, P. L. Thomas, L. Wensveen, P. J. Miller, P. J. O. |
author_sort |
Antunes, R. |
title |
High thresholds for avoidance of sonar by free-ranging long-finned pilot whales (Globicephala melas) |
title_short |
High thresholds for avoidance of sonar by free-ranging long-finned pilot whales (Globicephala melas) |
title_full |
High thresholds for avoidance of sonar by free-ranging long-finned pilot whales (Globicephala melas) |
title_fullStr |
High thresholds for avoidance of sonar by free-ranging long-finned pilot whales (Globicephala melas) |
title_full_unstemmed |
High thresholds for avoidance of sonar by free-ranging long-finned pilot whales (Globicephala melas) |
title_sort |
high thresholds for avoidance of sonar by free-ranging long-finned pilot whales (globicephala melas) |
publishDate |
2014 |
url |
https://research-portal.st-andrews.ac.uk/en/researchoutput/high-thresholds-for-avoidance-of-sonar-by-freeranging-longfinned-pilot-whales-globicephala-melas(0c095b5b-75c5-4dd8-82d8-3508509124a3).html https://doi.org/10.1016/j.marpolbul.2014.03.056 |
genre |
Orca Orcinus orca |
genre_facet |
Orca Orcinus orca |
op_source |
Antunes , R , Kvadsheim , P H , Lam , F P A , Tyack , P L , Thomas , L , Wensveen , P J & Miller , P J O 2014 , ' High thresholds for avoidance of sonar by free-ranging long-finned pilot whales (Globicephala melas) ' , Marine Pollution Bulletin , vol. 83 , no. 1 , pp. 165-180 . https://doi.org/10.1016/j.marpolbul.2014.03.056 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/high-thresholds-for-avoidance-of-sonar-by-freeranging-longfinned-pilot-whales-globicephala-melas(0c095b5b-75c5-4dd8-82d8-3508509124a3).html |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.marpolbul.2014.03.056 |
container_title |
Marine Pollution Bulletin |
container_volume |
83 |
container_issue |
1 |
container_start_page |
165 |
op_container_end_page |
180 |
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1802648805681659904 |