Assessing Underwater Noise Levels during Pile-Driving at an Offshore Windfarm and its Potential Effects on Marine Mammals

Journal Article

Title: Assessing Underwater Noise Levels during Pile-Driving at an Offshore Windfarm and its Potential Effects on Marine Mammals
Publication Date:
June 01, 2010
Journal: Marine Pollution Bulletin
Volume: 60
Issue: 6
Pages: 888-897
Publisher: Elsevier
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Document Access

Website: External Link

Citation

Bailey, H.; Senior, B.; Simmons, D.; Rusin, J.; Picken, G.; Thompson, P. (2010). Assessing Underwater Noise Levels during Pile-Driving at an Offshore Windfarm and its Potential Effects on Marine Mammals. Marine Pollution Bulletin, 60(6), 888-897.
Abstract: 

Underwater noise is a major concern with regards towards marine mammals in general and sensitive species. This study looks at the pile driving aspect of offshore wind installations, which is a very loud procedure. This is especially concerning because much marine life is vulnerable to sound. The research was conducted at a Special Area of Conservation in northeastern Scotland.

 

Sound analysis was conducted during the installation of two 5 MW wind turbines in the conservation area. After the recording, it was evident that the sound extends over a large area. Also, the impact could be greater when larger wind farms are installed over longer periods of time. The dangerous effects are most likely to occur within 100 meters from the site. If a larger project was constructed over several months, could lead to potential avoidance by harbor porpoises from 20 km away.

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