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Noise exposure criteria for harbor porpoises
Tougaard, J.J.; Wright, A.J.; Madsen, P.T. (2016). Noise exposure criteria for harbor porpoises, in: Popper, A.N. et al. (Ed.) The effects of noise on aquatic life II. Advances in Experimental Medicine and Biology, 875: pp. 1167-1173. hdl.handle.net/10.1007/978-1-4939-2981-8_146
In: Popper, A.N.; Hawkins, A. (Ed.) (2016). The effects of noise on aquatic life II. Advances in Experimental Medicine and Biology, 875. Springer Science+Business Media, Inc: New York. ISBN 978-1-4939-2980-1. xxx, 1292 pp., more
In: Advances in Experimental Medicine and Biology. Springer: Berlin. ISSN 0065-2598, more
Peer reviewed article  

Available in Authors 

Keywords
    Pile driving; Pingers; Phocoena phocoena (Linnaeus, 1758) [WoRMS]; Marine
Author keywords
    Temporary threshold shift; Behavioral response; Seal scarer

Authors  Top 
  • Tougaard, J.J.
  • Wright, A.J.
  • Madsen, P.T.

Abstract
    Despite a major research effort, no generally accepted exposure limits are available for harbor porpoises. Recent studies of the temporary threshold shift (TTS) in porpoises indicate that the sound exposure levels (SELs) required to induce low levels of TTS depend on stimulus frequency and roughly parallel the shape of the audiogram. A number of studies on behavioral avoidance reactions (negative phonotaxis) to pingers, seal scarers, and pile driving show a similar dependence on stimulus frequency. Both TTS and behavioral data suggest that weighting sound pressure levels with a filter function resembling the inverted audiogram would be appropriate

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