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Professor Peter Teglberg Madsen

Cetacean noise criteria revisited in the light of proposed exposure limits for harbour porpoises

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Cetacean noise criteria revisited in the light of proposed exposure limits for harbour porpoises. / Tougaard, Jakob; Wright, Andrew John; Madsen, Professor Peter Teglberg.

In: Marine Pollution Bulletin, Vol. 90, No. 1-2, 2015, p. 196-208.

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@article{12970fc890784b779c53329af41e9670,
title = "Cetacean noise criteria revisited in the light of proposed exposure limits for harbour porpoises",
abstract = "The impact of underwater noise on marine life calls for identification of exposure criteria to inform mitigation. Here we review recent experimental evidence with focus on the high-frequency cetaceans and discuss scientifically-based initial exposure criteria. A range of new TTS experiments suggest that harbour and finless porpoises are more sensitive to sound than expected from extrapolations based on results from bottlenose dolphins. Furthermore, the results from TTS experiments and field studies of behavioural reactions to noise, suggest that response thresholds and TTS critically depend on stimulus frequency. Sound exposure levels for pure tones that induce TTS are reasonably consistent at about 100 dB above the hearing threshold for pure tones and sound pressure thresholds for avoidance reactions are in the range of 40–50 dB above the hearing threshold. We propose that frequency weighting with a filter function approximating the inversed audiogram might be appropriate when assessing impact.",
keywords = "Undervandsst{\o}j, marsvin (hvaler), Havpattedyr, TTS, underwater noise, temporary threshold shift, impact assessment, behavioural response, hearing, frequency weighting",
author = "Jakob Tougaard and Wright, {Andrew John} and Madsen, {Professor Peter Teglberg}",
year = "2015",
doi = "10.1016/j.marpolbul.2014.10.051",
language = "English",
volume = "90",
pages = "196--208",
journal = "Marine Pollution Bulletin",
issn = "0025-326X",
publisher = "Elsevier Ltd",
number = "1-2",

}

RIS

TY - JOUR

T1 - Cetacean noise criteria revisited in the light of proposed exposure limits for harbour porpoises

AU - Tougaard, Jakob

AU - Wright, Andrew John

AU - Madsen, Professor Peter Teglberg

PY - 2015

Y1 - 2015

N2 - The impact of underwater noise on marine life calls for identification of exposure criteria to inform mitigation. Here we review recent experimental evidence with focus on the high-frequency cetaceans and discuss scientifically-based initial exposure criteria. A range of new TTS experiments suggest that harbour and finless porpoises are more sensitive to sound than expected from extrapolations based on results from bottlenose dolphins. Furthermore, the results from TTS experiments and field studies of behavioural reactions to noise, suggest that response thresholds and TTS critically depend on stimulus frequency. Sound exposure levels for pure tones that induce TTS are reasonably consistent at about 100 dB above the hearing threshold for pure tones and sound pressure thresholds for avoidance reactions are in the range of 40–50 dB above the hearing threshold. We propose that frequency weighting with a filter function approximating the inversed audiogram might be appropriate when assessing impact.

AB - The impact of underwater noise on marine life calls for identification of exposure criteria to inform mitigation. Here we review recent experimental evidence with focus on the high-frequency cetaceans and discuss scientifically-based initial exposure criteria. A range of new TTS experiments suggest that harbour and finless porpoises are more sensitive to sound than expected from extrapolations based on results from bottlenose dolphins. Furthermore, the results from TTS experiments and field studies of behavioural reactions to noise, suggest that response thresholds and TTS critically depend on stimulus frequency. Sound exposure levels for pure tones that induce TTS are reasonably consistent at about 100 dB above the hearing threshold for pure tones and sound pressure thresholds for avoidance reactions are in the range of 40–50 dB above the hearing threshold. We propose that frequency weighting with a filter function approximating the inversed audiogram might be appropriate when assessing impact.

KW - Undervandsstøj

KW - marsvin (hvaler)

KW - Havpattedyr

KW - TTS

KW - underwater noise

KW - temporary threshold shift

KW - impact assessment

KW - behavioural response

KW - hearing

KW - frequency weighting

U2 - 10.1016/j.marpolbul.2014.10.051

DO - 10.1016/j.marpolbul.2014.10.051

M3 - Journal article

C2 - 25467877

VL - 90

SP - 196

EP - 208

JO - Marine Pollution Bulletin

JF - Marine Pollution Bulletin

SN - 0025-326X

IS - 1-2

ER -