Affiliation: | 1. Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden;2. CNR, Istituto per lo Studio degli Ecosistemi, Verbania Pallanza, Italy;3. Centre for Limnology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia;4. Institute of Geology, Tallinn University of Technology, Tallinn, Estonia;5. Department of Geography, Kansas State University, Manhattan, KS, USA |