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Article

Drivers of Macrophyte and Diatom Diversity in a Shallow Hypertrophic Lake

1
Department of Vegetation Ecology, Institute of Botany of the Czech Academy of Sciences, Lidická 25/27, 602 00 Brno, Czech Republic
2
Department of Botany, National Museum, Cirkusová 1740, CZ-193 00 Praha 9—Horní Počernice, Czech Republic
3
Vltava River Authority, State Enterprise, Holečkova 3178, 150 00 Praha 5—Smíchov, Czech Republic
4
Department of Paleoecology, Institute of Botany of the Czech Academy of Sciences, Lidická 25/27, 602 00 Brno, Czech Republic
*
Author to whom correspondence should be addressed.
Academic Editors: Alenka Gaberščik and Igor Zelnik
Water 2021, 13(11), 1569; https://doi.org/10.3390/w13111569
Received: 12 April 2021 / Revised: 10 May 2021 / Accepted: 30 May 2021 / Published: 1 June 2021
(This article belongs to the Special Issue Hydrology-Shaped Plant Communities: Diversity and Ecological Function)
We studied macrophyte and diatom assemblages and a range of environmental factors in the large hypertrophic Dehtář fishpond (Southern Bohemia, Czech Republic) over the course of several growing seasons. The spatial diversity of the environment was considered when collecting diatoms and water samples in three distinct parts of the fishpond, where automatic sensor stations continually measuring basic factors were established. Macrophytes were mapped in 30 segments of the fishpond littoral altogether. High species richness and spatiotemporal variability were found in assemblages of these groups of autotrophs. Water level fluctuations, caused by the interaction of fish farming management and climatic extremes, were identified as one of the most important factors shaping the structure and species composition of diatom and macrophyte assemblages. The distance of the sampling sites from large inflows reflected well the spatial variability within the fishpond, with important differences in duration of bottom drainage and exposure to disturbances in different parts of the fishpond. Disturbances caused by intensive wave action are most probably a crucial factor allowing the coexistence of species with different nutrient requirements under the hypertrophic conditions of the Dehtář fishpond. Due to a range of variables tested and climatic extremes encountered, our study may be considered as a basis for predictive model constructions in similar hypertrophic water bodies under a progressing climate change. View Full-Text
Keywords: automatic sensor system; Central Europe; fish farming; freshwater algae; epiphytic diatoms; functional species groups; threatened species; vascular plants; wave action; wetland vegetation automatic sensor system; Central Europe; fish farming; freshwater algae; epiphytic diatoms; functional species groups; threatened species; vascular plants; wave action; wetland vegetation
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MDPI and ACS Style

Šumberová, K.; Vild, O.; Ducháček, M.; Fabšičová, M.; Potužák, J.; Fránková, M. Drivers of Macrophyte and Diatom Diversity in a Shallow Hypertrophic Lake. Water 2021, 13, 1569. https://doi.org/10.3390/w13111569

AMA Style

Šumberová K, Vild O, Ducháček M, Fabšičová M, Potužák J, Fránková M. Drivers of Macrophyte and Diatom Diversity in a Shallow Hypertrophic Lake. Water. 2021; 13(11):1569. https://doi.org/10.3390/w13111569

Chicago/Turabian Style

Šumberová, Kateřina, Ondřej Vild, Michal Ducháček, Martina Fabšičová, Jan Potužák, and Markéta Fránková. 2021. "Drivers of Macrophyte and Diatom Diversity in a Shallow Hypertrophic Lake" Water 13, no. 11: 1569. https://doi.org/10.3390/w13111569

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