Water and sediment are constantly moved around by the tide and wind. They form the Wadden Sea. Its ecological, cultural and economic development is determined by these daily changes. The trilateral Wadden Sea consists of a number of joined sediment-sharing inlet systems.
With a 13-percent increase of counted individuals since 2017 and a steady growth for more than ten years, the grey seal has re-established a stable stock in the Wadden Sea area.