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<p>In this paper, we report new records of rare diatoms that have recently been found in Southern Poland. <italic>Planothidium nanum</italic> was found only in the upper reaches of the Centuria River, which is not exposed to human influence, while <italic>Navicula flandriae</italic> was found in two rivers (the Bolina and the Mleczna) affected by salt mine water from hard coal mines. The impact of anthropogenic salinity on diatom communities is as yet poorly documented. Therefore, we conducted a survey on this phenomenon. We surveyed seven sampling sites for diatom assemblages and habitat characteristics, including three sampling sites impacted by mine water. <italic>Navicula flandriae</italic> was recorded at both sampling sites affected by salt mine water and in two other rivers (the Centuria and the Mitręga), indicating its wide preference for salinity. We confirmed the occurrence of <italic>P. nanum</italic> at the same site where this species was found and described in our previous paper. In addition, we recorded the occurrence of this species at two other sites in habitats with similar characteristics (lower reaches of the Centuria and Wiercica rivers). Our results indicate a more common occurrence of <italic>N. flandriae</italic> and <italic>P. nanum</italic>, which means that further monitoring of diatoms is necessary.</p>
</abstract>

In this paper, we report new records of rare diatoms that have recently been found in Southern Poland. Planothidium nanum was found only in the upper reaches of the Centuria River, which is not exposed to human influence, while Navicula flandriae was found in two rivers (the Bolina and the Mleczna) affected by salt mine water from hard coal mines. The impact of anthropogenic salinity on diatom communities is as yet poorly documented. Therefore, we conducted a survey on this phenomenon. We surveyed seven sampling sites for diatom assemblages and habitat characteristics, including three sampling sites impacted by mine water. Navicula flandriae was recorded at both sampling sites affected by salt mine water and in two other rivers (the Centuria and the Mitręga), indicating its wide preference for salinity. We confirmed the occurrence of P. nanum at the same site where this species was found and described in our previous paper. In addition, we recorded the occurrence of this species at two other sites in habitats with similar characteristics (lower reaches of the Centuria and Wiercica rivers). Our results indicate a more common occurrence of N. flandriae and P. nanum, which means that further monitoring of diatoms is necessary.

Distribution and ecology of two interesting diatom species <italic>Navicula flandriae</italic> Van de Vijver et Mertens and <italic>Planothidium nanum</italic> Bąk, Kryk et Halabowski in rivers of Southern Poland and their spring areas

Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences

Institute of Marine and Environmental Sciences

Oceanological and Hydrobiological Studies

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Distribution and ecology of two interesting diatom species  Van de Vijver et Mertens and  Bąk, Kryk et Halabowski in rivers of Southern Poland and their spring areas

In this paper, we report new records of rare diatoms that have recently been found in Southern Poland. Planothidium nanum was found only in the upper reaches...

Distribution and ecology of two interesting diatom species Navicula flandriae Van de Vijver et Mertens and Planothidium nanum Bąk, Kryk et Halabowski in rivers of Southern Poland and their spring areas

Article Category: Original research paper

Published Online: Jun 05, 2021

Page range: 137 - 149

Received: Sep 21, 2020

Accepted: Dec 15, 2020

DOI: https://doi.org/10.2478/oandhs-2021-0013

Keywords
Bacillariophyta, salinization, Upper Silesia, Kraków-Częstochowa Upland, anthropopressure, phytobenthos, water quality, taxonomy

© 2021 Dariusz Halabowski et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Distribution and ecology of two interesting diatom species Navicula flandriae Van de Vijver et Mertens and Planothidium nanum Bąk, Kryk et Halabowski in rivers of Southern Poland and their spring areas

Article Category: Original research paper

Published Online: Jun 05, 2021

Page range: 137 - 149

Received: Sep 21, 2020

Accepted: Dec 15, 2020

DOI: https://doi.org/10.2478/oandhs-2021-0013

KeywordsBacillariophyta, salinization, Upper Silesia, Kraków-Częstochowa Upland, anthropopressure, phytobenthos, water quality, taxonomy

© 2021 Dariusz Halabowski et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
Bacillariophyta, salinization, Upper Silesia, Kraków-Częstochowa Upland, anthropopressure, phytobenthos, water quality, taxonomy