Underneath this dirty-looking surface of sandy
tidal flats there is a colorful microbial world
Farbstreifen-Sandwatt
On sheltered sandy places in tidal flats, microbial mats can develop. Algae, cyanobacteria and various groups of sulfur bacteria form layers of different colors that are referred to as 'Farbstreifen-Sandwatt'.
Microbial mats
