1. Recreational Fisheries Laboratory, Department of Biology and Ecology of Fishes; Leibniz-Institute of Freshwater Ecology and Inland Fisheries; Berlin Germany
2. Division of Integrative Fisheries Management, Albrecht-Daniel-Thaer Institute of Crop and Agricultural Sciences; Faculty of Life Sciences & Integrative Institute for the Transformation of Human-Environment Systems (IRI THESys), Humboldt-Universität zu Berlin; Germany
3. Center for Limnology; University of Wisconsin-Madison; Madison WI U.S.A
4. Institute for Landscape Economics; Technical University; Berlin Germany