1. Biology Centre, Czech Academy of SciencesInstitute of Hydrobiology České Budějovice Czech Republic
2. Faculty of ScienceUniversity of South Bohemia České Budějovice Czech Republic
3. Department of Zoology, Fisheries, Hydrobiology and Apiculture, Mendel University in Brno Brno Czech Republic
4. Faculty of AgricultureUniversity of South Bohemia České Budějovice Czech Republic
5. ENKI, o.p.s. Třeboň Czech Republic
6. Limnological Station, Department of Plant and Microbial BiologyUniversity of Zurich Kilchberg Switzerland