1. Freshwater Centre Finnish Environment Institute Helsinki Finland
2. Departamento de Ecología e Hidrología Universidad de Murcia Murcia Spain
3. IRSTEA, UR RiverLY, Centre de Lyon‐Villeurbanne Villeurbanne France
4. School of Science and Technology Nottingham Trent University Nottingham UK
5. Department of Botany and Zoology Faculty of Science Masaryk University Brno Czech Republic
6. Biodiversity Centre Finnish Environment Institute Helsinki Finland