1. Institute for Environmental Sciences University of Koblenz‐Landau Landau Germany
2. German Environment Agency Berlin Germany
3. Institute for Zoology University of Cologne Cologne Germany
4. Eußerthal Ecosystem Research Station University of Koblenz‐Landau Eußerthal Germany
5. Department River Ecology Helmholtz Centre for Environmental Research – UFZ Magdeburg Germany
6. Department Aquatic Ecosystem Analysis and Management Helmholtz Centre for Environmental Research – UFZ Magdeburg Germany