Behavioral Reactions of Harbor Porpoise to Pile-Driving Noise

Journal Article

Title: Behavioral Reactions of Harbor Porpoise to Pile-Driving Noise
Publication Date:
January 01, 2012
Journal: Advances in Experimental Medicine and Biology
Volume: 730
Pages: 277-280
Publisher: Springer
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Document Access

Website: External Link

Citation

Tougaard, J.; Kyhn, L.; Amundin, M.; Wennerberg, D.; Bordin, C. (2012). Behavioral Reactions of Harbor Porpoise to Pile-Driving Noise. Advances in Experimental Medicine and Biology, 730, 277-280.
Abstract: 

Pile driving of large steel monopiles in offshore waters has increased rapidly in recent years due to the expanding development of offshore wind energy. In particular, Phocoena phocoena (harbor porpoise) has been the focus of attention with respect to a possible negative impact. Impact pile driving, where a large steel monopile is driven 20-30 m into the seabed, is capable of generating very loud sound pressures, exceeding 230 dB re 1 m Pa peak-peak in source levels and detectable at distances of tens of kilometers (Bailey et al. 2010). Such high sound pressures, coupled with the repetitive emission of sounds (1–2 strokes/s) at a high duty cycle (10%) gives the potential for exposing nearby animals to very high and potentially damaging sound exposure levels (Gordon et al. 2009). Besides the potential to inflict acute injury, the pile-driving noise has the potential to affect behavior of marine mammals over an even larger area.

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