COWRIE are pleased to announce the publication of this report, produced by SEAMARCO (Sea Mammal Research Company). This research was commissioned to help determine whether AMDs can mitigate immediate vicinity impacts of loud sounds, including the sounds produced by pile-driving for the construction of offshore wind farms. 

COWRIE commissioned SEAMARCO to carry out four studies on the audibility of sounds produced by three selected AMDs and their effect on the behaviour of harbour porpoises and harbour seals (playback experiments). SEAMARCO also estimated the distances at which sounds from AMDs are audible to, and elicit behavioural responses in, harbour porpoises and harbour seals. 

The full report can be downloaded here. 

The Executive Summary can be downloaded here.