Harbour Seal Numbers in the Wadden Sea and on Helgoland in 1999

Trilateral Seal Expert Group (TSEG)

The coordinated surveys of common seals in the international Wadden Sea in 1999 revealed the following results. The rounded off total number of seals counted in 1999 amounted to 15 200 (2 150 in DK, 5 850 in SH, 4 800 in Nds and 2 400 in NL), and of those 3110 were pups. Though the percentage of pups per total number is of the same order as the years before, the increase of 5.5% of the total population is lower.



Trilateral Seal Expert Group
Svend Tougaard, Fiskeri-og Søfartsmuseet, Esbjerg, DK Ursula Siebert, FTZ Büsum der Univ. Kiel, SH, Ekkehard Vareschi, Universität Oldenburg, Nds., Peter H. Reijnders, IBN-DLO Inst. for Forestry and Nature Research, Texel, NL.