A tiszavirág (Palingenia longicauda) természetvédelmi státusza, anyagforgalmi jelentősége és a visszatelepítés lehetőségei

The role of the hard benthos living Palingenia mayfly in running waters is very important. These animals use the materials of the bottom by bioturbation. They are the important members of food-web. The aquatic insects carry out a lot of materials from the water during their massemergence. As they are bioindicators they show the water quality. The nature conservation status, biology and possibilities of reintroduce of Palingenia mayfly in the Danube and different German rivers were discussed