1. Department of Ecoscience—Lake Ecology Aarhus University, C F Møllers Alle 3 Aarhus Denmark
2. Sino‐Danish Centre for Education and Research Beijing China
3. Section for Freshwater Fisheries and Ecology, Institute of Aquatic Resources Technical University of Denmark Silkeborg Denmark
4. WATEC, Center for Water Technology Aarhus University Aarhus Denmark