Sensation in Bavaria: Critically endangered stone crab spotted in Moorenweis. Measures should now be taken to promote the population.
Occurrence proves good water quality. Crayfish play an important role as so-called indicator organisms for the ecological quality of water bodies. Their occurrence demonstrates good to medium water quality with only low organic pollution. Caves, coves and overhangs on the banks are important for the crab to find many hiding places. The municipality of MoorenWeis will reduce water maintenance measures in order to protect the crayfish population.