1. Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research Bremerhaven Germany
2. Wadden Sea Station Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research List/Sylt Germany
3. Institute for Applied Photogrammetry and Geoinformatics Jade University of Applied Sciences Oldenburg Germany
4. Bioconsult Schuchardt & Scholle GbR Kiel Germany
5. Marine Research Department Senckenberg am Meer Wilhelmshaven Germany
6. Außenstelle Insel Vilm Bundesamt für Naturschutz Putbus Germany