The impact of water abstraction on hydromorphological, physico-chemical parameters and on periphyton community in the River Oplotnica
DOI:
https://doi.org/10.14720/ns.11.1.5-23Keywords:
periphyton, algae, running waters, Oplotnica, water abstractionAbstract
From May to August 2007, sampling of periphyton, estimation of hydromorphological, physical and chemical parameters on the Oplotnica river were performed. The sampling sites were selected in the water abstraction area of the Oplotnica river for the purpose of small Hohler and Oplotnica hydroelectric plants. The impact of water abstraction on the hydromorphological, physical and chemical parameters as well as on the community structure and relative abundance of periphyton was estimated. The results showed changes of hydromorphological parameters at sampling sites affected by water abstraction. Physical and chemical parameters, species composition and relative abundance of periphyton did not alter along the water course to a large extent. Smaller differences in species composition and relative abundance of periphyton were noticed due to different types of water habitats. The Bray–Curtis coefficient of similarity demonstrated the periphyton community to be more time than place dependent. The Pantle–Buck Saprobic index classifies the Oplotnica river in the I. and I.-II. class according to the quality, which gives evidence that water in the water course was not polluted or polluted to a minor extent.
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