The Harbour Seal Population in the Wadden Sea as Revealed by the Aerial Surveys in 2003

Part of the Seal Agreement respectively the trilateral Seal Management Plan is the monitoring of the harbour seal population in the Danish, German (Schleswig-Holstein and Lower Saxony), and Dutch Wadden Sea by an annual series of aerial surveys. This year, the surveys had an extra dimension because of the occurrence of a seal epizootic in 2002.

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