1. Department of Limnology and OceanographyUniversity of ViennaAlthanstrasse 14A‐1090Vienna Austria
2. Stream Biofilm and Ecosystem Research Laboratory, School of Architecture, Civil and Environmental EngineeringÉcole Polytechnique Fédérale de Lausanne (EPFL)CH‐1015Lausanne Switzerland
3. WasserCluster Lunz GmbHDr. Carl Kupelwieser Promenade 53293Lunz am See Austria