1. Key Laboratory of Algal Biology Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 China
2. Qingdao Branch of Shandong Water Diversion Project Operation and Maintenance Center Qingdao 266100 China
3. Key Laboratory of Environment Change and Resources Use in Beibu Gulf Ministry of Education Nanning 530001 China
4. School of Life Science Shanxi University Taiyuan 030006 China
5. State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 China
6. Meise Botanic Garden Meise 1860 Belgium
7. Biology Department Ghent University 9000 Ghent Belgium