Wasserfledermaus
Small mammals seen in or near the river include hedgehog, mole, common shrew, pygmy shrew, water shrew, noctule bat, pipistrelle bat, Natterer's bat, Daubenton's bat, rabbits, brown hares, grey squirrel, bank vole, short-tailed field vole, water vole, wood mouse, house mouse and the brown rat.