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More than ten years of growth in the Wadden Sea area


The coordinated aerial, boat and land surveys of the Dutch, German and Danish Wadden Sea areas and Helgoland (Germany) aim to record annual changes in numbers of grey seals (Halichoerus grypus).


Authors: Members of the Trilateral Seal Expert Group (TSEG): Sophie Brasseur, Jenny Cremer, Richard Czeck, Anders Galatius, Armin Jeß, Peter Körber, Ralf Pund, Ursula Siebert, Jonas Teilmann, Sascha Klöpper


This report should be cites as: Brasseur S., Cremer J., Czeck R., Galatius A., Jeß A., Körber P., Pund R., Siebert U., Teilmann J. & Klöpper S. (2018) TSEG grey seal surveys in the Wadden Sea and Helgoland in 2017-2018. Common Wadden Sea Secretariat, Wilhelmshaven, Germany.