Scientists at the Biological Institute Helgoland (BAH) of the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research study biotic communities in the North Sea. The rocky mudflat and [...] and since 1998 the Biological Institute Helgoland belongs to the Alfred Wegener Institute. How to get here The island of Helgoland can be reached by ship (from 1.5 to 2.5 hours) and by airplane (approx. [...] and since 1998 the Biological Institute Helgoland belongs to the Alfred Wegener Institute. Further AWI Sites Bremerhaven Oldenburg Potsdam Sylt