1. Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology of China, Institute of Hydrobiology, Chinese Academy of Sciences; Wuhan P. R. China
2. Institute of Biology/Aquatic Ecology, Ecology Building, Lund University; Lund Sweden
3. Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences; Nanjing P.R. China
4. Center for Environmental Biology and Ecosystem Studies, National Institute of Environmental Studies; Tsukuba Ibaraki Japan
5. Arctic Research Center, Hokkaido University; Sapporo Hokkaido Japan
6. College of Fisheries; Huazhong Agricultural University; Wuhan P. R. China