1. Heinrich‐Heine‐University of Düsseldorf, Institute for Zoology and Cell Biology Düsseldorf Germany
2. University of Cologne, Institute for Zoology, Workgroup Aquatic Chemical Ecology Köln Germany
3. Department of River EcologyHelmholtz Centre for Environmental Research (UFZ) Magdeburg Germany
4. Department of Aquatic Ecosystem Analysis and ManagementHelmholtz Centre for Environmental Research (UFZ) Magdeburg Germany