Authors
Michal Straka
T. G. Masaryk Water Research Institute p.r.i., Brno Branch Office, Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno
Jiří Kroča
T. G. Masaryk Water Research Institute p.r.i., Brno Branch Office, Department of Ecology and Environmental Sciences, Faculty of Science, Palacký University Olomouc, Brno