Prof. Dr. Klement Tockner is director of the Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB, Berlin) and professor for Aquatic Ecology at the Freie Universität Berlin and. He received a PhD from the University of Vienna and a Titulary Professorship at ETH. He has special expertise on freshwater biodiversity, ecosystem functioning, and river and wetland management. He is Co-Editor of the journal Aquatic Sciences and Subject Editor of the journal Ecosystems. He has published more than 200 scientific papers including 120 ISI papers. In 2009, he edited a comprehensive book on European Rivers (Rivers of Europe, Elsevier). Klement Tockner has successfully managed large inter- and transdisciplinary projects (e.g. EC-funded project BioFresh;). He is member of several scientific committees and advisory boards including the crosscutting group on freshwater biodiversity of GEO-BON, and elected member of the Austrian Academy of Sciences and the German Academy of Sciences (Leopoldina).