Grey Seal Numbers in the Wadden Sea and on Helgoland in 2017-2018

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: 

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.