1. Department of Aquatic Sciences and Assessment Swedish University of Agricultural Sciences Uppsala Sweden
2. Department of Ecology and Genetics University of Oulu Oulu Finland
3. School of Science & Technology Nottingham Trent University Nottingham UK
4. Finnish Environment Institute Freshwater Centre Oulu Finland
5. School of Natural Resources University of Nebraska – Lincoln Lincoln NE USA
6. Natural Resources Institute Finland (Luke) Paltamo Finland
7. Department of Ecology and Environmental Sciences Umeå University Umeå Sweden