Klement Tockner is full professor for Aquatic Ecology at the Free University Berlin and director of the Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB). He is Adjunct Senior Scientist at EAWAG and Titulary Professor at ETH. He has special expertise on freshwater biodiversity, ecosystem functioning, and river and wetland restoration and management. He is Editor-in-Chief of the journal Aquatic Sciences and Subject Editor of the journal Ecosystems. He has published more than 150 scientific papers including 100 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, actually coordinates the EC-funded project BioFresh (www.freshwaterbiodiversity.eu). He is member of several scientific committees including the crosscutting group on freshwater biodiversity of DIVERSITAS and GEO-BON.