Front, from left: Prof. Friedrich Buchholz (Helgoland), Dr. Cornelia Buchholz (Helgoland); back: Dr. Maarten Boersma (Helgoland), Prof. Winfried Lampert (Plön), Prof. Ulrich Sommer (Kiel), Prof. Karen Wiltshire (newly appointed Director of the Biologische Anstalt Helgoland)