1. Division for Integrative Fisheries Management; Albrecht-Daniel-Thaer-Institute of Agriculture and Horticulture; Faculty of Life Sciences; Humboldt-Universität zu Berlin; Berlin Germany
2. Department of Biology and Ecology of Fishes; Leibniz-Institute of Freshwater Ecology and Inland Fisheries; Berlin Germany
3. State Sport Fisher Association of Lower Saxony; Hannover Germany