Marine mammals and windfarms: Effects of alpha ventus on harbour porpoises

TitleMarine mammals and windfarms: Effects of alpha ventus on harbour porpoises
Publication TypeBook Chapter
Year of Publication2014
AuthorsDähne, Michael, Peschko Verena, Gilles Anita, Lucke Klaus, Adler Sven, Ronnenberg Katrin, and Siebert Ursula
Book TitleEcological Research at the Offshore Windfarm alpha ventus
Pagination133-149
PublisherSpringer
EndNote Rec Number11872
Abstract

Offshore windfarms have the potential to affect marine mammal populations. For harbour porpoises, the threat considered most important is the influence of noise during the construction phase. Effects of the operational period that need to be considered can be either noise effects or effects due to alteration to the habitat where foundations were erected. Visual surveys and stationary acoustic monitoring showed a strong avoidance reaction during pile-driving while during the operational period results were inconclusive. In future, these impacts must be seen in a larger framework to predict the biological significance of cumulative effects.