Drivers of Macrophyte and Diatom Diversity in a Shallow Hypertrophic Lake
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...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/13/11/1569 |
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| author | Kateřina Šumberová Ondřej Vild Michal Ducháček Martina Fabšičová Jan Potužák Markéta Fránková |
| author_facet | Kateřina Šumberová Ondřej Vild Michal Ducháček Martina Fabšičová Jan Potužák Markéta Fránková |
| author_sort | Kateřina Šumberová |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-10T10:47:49Z |
| format | Article |
| id | doaj.art-6cf6ff5e73f4422bb1b9f2a90f80b238 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T10:47:49Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-6cf6ff5e73f4422bb1b9f2a90f80b2382023-11-21T22:28:14ZengMDPI AGWater2073-44412021-06-011311156910.3390/w13111569Drivers of Macrophyte and Diatom Diversity in a Shallow Hypertrophic LakeKateřina Šumberová0Ondřej Vild1Michal Ducháček2Martina Fabšičová3Jan Potužák4Markéta Fránková5Department of Vegetation Ecology, Institute of Botany of the Czech Academy of Sciences, Lidická 25/27, 602 00 Brno, Czech RepublicDepartment of Vegetation Ecology, Institute of Botany of the Czech Academy of Sciences, Lidická 25/27, 602 00 Brno, Czech RepublicDepartment of Botany, National Museum, Cirkusová 1740, CZ-193 00 Praha 9—Horní Počernice, Czech RepublicDepartment of Vegetation Ecology, Institute of Botany of the Czech Academy of Sciences, Lidická 25/27, 602 00 Brno, Czech RepublicVltava River Authority, State Enterprise, Holečkova 3178, 150 00 Praha 5—Smíchov, Czech RepublicDepartment of Paleoecology, Institute of Botany of the Czech Academy of Sciences, Lidická 25/27, 602 00 Brno, Czech RepublicWe 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.https://www.mdpi.com/2073-4441/13/11/1569automatic sensor systemCentral Europefish farmingfreshwater algaeepiphytic diatomsfunctional species groups |
| spellingShingle | Kateřina Šumberová Ondřej Vild Michal Ducháček Martina Fabšičová Jan Potužák Markéta Fránková Drivers of Macrophyte and Diatom Diversity in a Shallow Hypertrophic Lake Water automatic sensor system Central Europe fish farming freshwater algae epiphytic diatoms functional species groups |
| title | Drivers of Macrophyte and Diatom Diversity in a Shallow Hypertrophic Lake |
| title_full | Drivers of Macrophyte and Diatom Diversity in a Shallow Hypertrophic Lake |
| title_fullStr | Drivers of Macrophyte and Diatom Diversity in a Shallow Hypertrophic Lake |
| title_full_unstemmed | Drivers of Macrophyte and Diatom Diversity in a Shallow Hypertrophic Lake |
| title_short | Drivers of Macrophyte and Diatom Diversity in a Shallow Hypertrophic Lake |
| title_sort | drivers of macrophyte and diatom diversity in a shallow hypertrophic lake |
| topic | automatic sensor system Central Europe fish farming freshwater algae epiphytic diatoms functional species groups |
| url | https://www.mdpi.com/2073-4441/13/11/1569 |
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