TY - CHAP TI - Marine mammals and windfarms: Effects of alpha ventus on harbour porpoises AU - Dähne, M AU - Peschko, V AU - Gilles, A AU - Lucke, K AU - Adler, S AU - Ronnenberg, K AU - Siebert, U T2 - Ecological Research at the Offshore Windfarm Alpha Ventus: Challenges, Results and Perspectives AB - 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.Click here to view the book Ecological Research at the Offshore Windfarm alpha ventus: Challenges, Results and Perspectives. DA - 2014/01// PY - 2014 SP - 133 EP - 149 PB - Springer UR - https://link.springer.com/chapter/10.1007/978-3-658-02462-8_13 U1 - Swedish University of Agricultural Sciences LA - English KW - Wind Energy KW - Fixed Offshore Wind KW - Noise KW - Avoidance KW - Marine Mammals ER -