Freshwater mudflats
A freshwater mudflats is the bottom of a tidal river that dries out due to the influence of the tide at low tide .
Similar to the Wadden Sea , freshwater mud flats also show geological and biological zoning . However, the animal and plant species are often different. In the upper zone of the freshwater mudflats, there are mainly reeds and rushes . Freshwater mud flats are among the most active ecosystems in terms of production biology and play a major role in the self-cleaning power of rivers . As a rule, they are very rich in nutrients and animals and are important nurseries for fish as well as resting places for birds. Due to dikes , the number of freshwater mudflats has declined sharply in the last 100 years.
Some larger freshwater mud flats are e.g. B. to be found on the Elbe :
- Ferryman sander Watt near Wedel
- Black ton sand across from Kollmar
- Pagensand
- Mühlenberger Loch near Hamburg-Finkenwerder
- Heuckenlock nature reserve on the north bank of the Süderelbe
- Flood polders Apen flood protection and bird home on the German Fehnroute
gallery
Tide at low tide
Reeds that have fallen dry at low tide
Freshwater mudflats at low tide
Creek at high tide
Vegetation at high water
