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Diversity of the summer phytoplankton of 43 waterbodies in Bulgaria and its potential for water quality assessment
Stoyneva-Gartner, M.P.; Descy, J.-P.; Uzunov, B.A.; Miladinov, P.; Stefanova, K.; Radkova, M.; Gärtner, G. (2023). Diversity of the summer phytoplankton of 43 waterbodies in Bulgaria and its potential for water quality assessment. Diversity 15(4): 472. https://dx.doi.org/10.3390/d15040472
In: Diversity. MDPI: Basel. ISSN 1424-2818; e-ISSN 1424-2818
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| Trefwoorden |
Cuspidothrix P.Rajaniemi, J.Komárek, R.Willame, P.Hrouzek, K.Kastovská, L.Hoffmann & K.Sivonen, 2005 [WoRMS]; Cyanobacteria [WoRMS]; Eustigmatophyceae [WoRMS]; Microcystis Lemmermann, 1907 [WoRMS]
Marien/Kust; Zoet water |
| Author keywords |
algal blooms; anatoxin; bioindication; Cuspidothrix; cyanobacteria; cyanoprokaryotes; drone; Eustigmatophyceae; green algae; HPLC; microcystin; Microcystis |
| Auteurs | | Top |
- Stoyneva-Gartner, M.P.
- Descy, J.-P.
- Uzunov, B.A.
- Miladinov, P.
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- Stefanova, K.
- Radkova, M.
- Gärtner, G.
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| Abstract |
The general awareness of the threats on biodiversity and water quality raised the number of studies that use phytoplankton in assessment procedures. Since most metrics require obtaining mean values, this paper presents data that may help speed up field work and find indicators for a rapid water quality assessment based on single samplings, allowing simultaneous work on many sites. The phytoplankton from 43 Bulgarian waterbodies collected during three summer campaigns (2018, 2019, 2021) at sites selected after drone observations was studied by conventional light microscopy (LM) and an HPLC analysis of marker pigments. Our results allowed us to recommend drones and the HPLC application as reliable methods in rapid water quality assessments. In total, 787 algae from seven phyla (53 alien, new for Bulgaria) were identified. Chlorophyta was the taxonomically richest group, but Cyanoprokaryota dominated the biomass in most sites. New PCR data obtained on anatoxin and microcystin producers confirmed the genetic diversity of Cuspidothrix and Microcystis and provided three new species for the country’s toxic species, first identified by LM. A statistical analysis revealed significant correlations of certain algal phyla and classes with different environmental variables, and their species are considered promising for future search of bioindicators. This is especially valid for the class Eustigmatophyceae, which, as of yet, has been almost neglected in water assessment procedures and indices. |
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