The Baltic Sea is experiencing an increase in pile driving for wind power exploitation that also affects areas used by harbour porpoises. In view of this and due to the current threat to a potential population of the harbour porpoise in the inner Baltic Sea, it is essential to know the seasonal distribution of this population of harbour porpoises and to separate this population from individuals belonging to other populations.
The aim of the project is to categorise the population genome of a representative data set of individual Baltic Sea harbour porpoises in order to
Using RAD-tag genotyping by sequencing, SNPs will be examined in several hundred individuals (approx. 100 from each of the inner Baltic Sea, Beltsee/Kattegat and North Sea/Skagerak). Samples from the breeding season will mainly be used if possible. Additional individuals will be used for comparison with external groups (Iceland, Spain) and to enhance the Baltic Sea data set (e.g. including other samples from outside the breeding season to identify migrating individuals).