1Biology Centre CAS, Institute of Hydrobiology, Na Sádkách 7, CZ-37005 České Budějovice, Czech Republic
2Faculty of Science, University of South Bohemia, Branišovská 1760, CZ-37005 České Budějovice, Czech Republic
3Limnological Station, Department of Plant and Microbial Biology, University of Zurich, CH-8802 Kilchberg, Switzerland
4Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, AK-99775 USA
5Institute of Experimental Botany CAS, Rozvojová 263, CZ-16502 Praha 6-Lysolaje, Czech Republic
6Institute of Botany CAS, Dukelská 135, CZ-37982 Třeboň, Czech Republic
© The Author(s). 2019
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