ISSUES/LOCATIONS

Documents Home
View PDF, DOC, PPT, and XLS files on line
RSS

Add NWW documents to your site (click here)

Sign up for daily updates

Keep Wind Watch online and independent!

News Watch

Selected Documents

Research Links

Alerts

Press Releases

FAQs

Publications & Products

Photos & Graphics

Videos

Allied Groups

Negative long term effects on harbour porpoises from a large scale offshore wind farm in the Baltic  

Author:  | Denmark, Noise, Wildlife

Abstract.

Offshore wind farms constitute a new and fast growing industry all over the world. This study investigates the long term impact on harbour porpoises, Phocoena phocoena, for more than 10 years (2001–12) from the first large scale offshore wind farm in the world, Nysted Offshore Wind Farm, in the Danish western Baltic Sea (72 × 2.3 MW turbines). The wind farm was brought into full operation in December 2003. At six stations, acoustic porpoise detectors (T-PODs) were placed inside the wind farm area and at a reference area 10 km to the east, to monitor porpoise echolocation activity as a proxy of porpoise presence. A modified statistical BACI design was applied to detect changes in porpoise presence before, during and after construction of the wind farm. The results show that the echolocation activity has significantly declined inside Nysted Offshore Wind Farm since the baseline in 2001–2 and has not fully recovered yet. The echolocation activity inside the wind farm has been gradually increasing (from 11% to 29% of the baseline level) since the construction of the wind farm, possibly due to habituation of the porpoises to the wind farm or enrichment of the environment due to reduced fishing and to artificial reef effects.

Environmental Research Letters, 2012, Vol. 7, No. 4, 045101
doi:10.1088/1748-9326/7/4/045101

Download original document: “Negative long term effects on harbour porpoises from a large scale offshore wind farm in the Baltic—evidence of slow recovery

This article is the work of the author(s) indicated. Any opinions expressed in it are not necessarily those of National Wind Watch.

Wind Watch relies entirely
on User Funding
Donate $5 PayPal Donate

Share:

Get the Facts Follow Wind Watch on Twitter

Wind Watch on Facebook

Share

CONTACT DONATE PRIVACY ABOUT SEARCH
© National Wind Watch, Inc.
Use of copyrighted material adheres to Fair Use.
"Wind Watch" is a registered trademark.
Share

Wind Watch on Facebook

Follow Wind Watch on Twitter