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Fehmarnbelt Fixed Link

In 2008 Germany and Denmark signed a state treaty with which they agreed upon the construction of a fixed link that would span the 18 km broad Fehmarnbelt and connect Puttgarden (Fehmarn) to Rødby (Lolland, Denmark). The planning and execution of the currently largest infrastructural project in Europe is carried out by Femern A/S. After considering various types of bridges and tunnels during the initial planning stages, the final decision was to build an immersed tunnel.

As part of an international consortium BioConsult SH had been commissioned by Femern A/S, to conduct the baseline investigations on marine mammals, resting birds, bird migration as well as bat migration between 2008 and 2010 for the environmental impact assessment. Additionally, BioConsult SH accompanies the plan approval procedure in Germany (more information on the plan approval can be found here: http://pfv.femern.com/). Since January 2015, again as a part of an international consortium, BioConsult SH has been commissioned to update the data that was collected between 2008 and 2010.

The environmental impact assessment is based on the following investigations:

Marine Mammals (harbour porpoise, harbour seal, grey seal):

Non-breeding waterbirds:

Bird migration:

Wood pigeonsDescription of bird migration across the Fehmarnbelt based on bird migration observations from two land-based stations close to Puttgarden and Rødby as well as from an offshore location that was based on a ship using:

Bat migration:

Since January 2015 BioConsult SH performs digital aerial surveys using the HiDef-system in the Fehmarnbelt study area. These surveys are being performed in the context of the plausibility check for the data recorded between 2008 and 2010 that is part of the plan approval procedure for German authorities. In order to be able to compare the data from these digital aerial surveys with data that has been obtained using the conventional method (ornithologist on board of an aircraft) the conventional method is also still being performed.


Caroline Höschle