New European locality of Gomphonema varians E. Reichardt and Levkov and first record in Poland
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1
Faculty of Technology and Life Sciences, Department of Soil Science, Environmental Chemistry and Hydrology, University of Rzeszów, ul. Zelwerowicza 8B, 35–601 Rzeszów, Poland
2
Faculty of Technology and Natural Sciences, Department of Landscape Architecture, University of Rzeszów, ul. Ćwiklińskiej 1a, 35–601 Rzeszów, Poland
These authors had equal contribution to this work
Corresponding author
Teresa Noga
Faculty of Technology and Life Sciences, Department of Soil Science, Environmental Chemistry and Hydrology, University of Rzeszów, ul. Zelwerowicza 8B, 35–601 Rzeszów, Poland
J. Ecol. Eng. 2025; 26(12)
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ABSTRACT
The aim of this work is to indicate a new locality of Gomphonema varians in Poland, in the Kisielina River, together with photographic documentation under LM and SEM, and to compare the species with similar taxa from the Gomphonema genus like G. parvulum, G. micropus, and G. sarcophagus. The species often coexisting and may be confused and, consequently, misidentified. The research was carried out in 2023 in April and September at seven sites designated along a rivercourse in SE Poland. Findings indicate that G. varians prefers stagnant waters, mesotrophic to meso-eutrophic conditions, alkaline to neutral pH, and low electrical conductivity.