Harbour Seal Numbers in the Wadden Sea and on Helgoland in 2002

Trilateral Seal Expert Group (TSEG)

Common seals in the Wadden Sea areas of the Netherlands, Lower Saxony, Schleswig-Holstein and Denmark are monitored through trilaterally coordinated aerial surveys. The flights are scheduled during the seal whelping and moulting seasons (i.e. June/early July and August, respectively), when the highest numbers of hauling out seals can be registered.

Authors:

Trilateral Seal Expert Group (TSEG)
DK: Svend Tougaard, Fiskeri-og Søfartmuseet, Esbjerg
SH: Ursula Siebert, Kai Abt, FTZ Büsum der Universität Kiel
LS: Michael Stede, LAVES Cuxhaven
NL: Peter J.H. Reijnders, Sophie Brasseur, Alterra - Marine & Coastal Zone Research, Texel