<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The objective of this work was to examine the water quality using three diatom indices SPI, GDI and TDI. The material for the study was collected during four seasons from autumn 2010 to summer 2011, from four sampling sites located on the Wisłoka River, in the town of Dębica and the surrounding area. The Wisłoka at all selected sites was characterized by alkaline or close to neutral pH (pH 6.5-7.7). Electrolytic conductivity ranged from 364 to 480 µS cm<sup>-1</sup>. The Wisłoka at the selected sites in the urban area and in the surrounding areas was characterized by high diatom species richness. The total of 238 taxa from 53 genera were recorded, of which the most numerous were: <italic>Nitzschia</italic> (44), <italic>Navicula</italic> (33) and <italic>Gomphonema</italic> (12). <italic>Achnanthidium minutissimum</italic> var. <italic>minutissimum, Amphora pediculus, Navicula gregaria, N. lanceolata</italic>, and <italic>Nitzschia dissipata</italic> ssp. <italic>dissipata</italic> were usually the dominant species. Chemical parameters indicated very good quality of water. However, the diatom indices used to assess the water quality, classified the studied water into a group corresponding to quality class III or IV.</p>
</abstract>

The objective of this work was to examine the water quality using three diatom indices SPI, GDI and TDI. The material for the study was collected during four seasons from autumn 2010 to summer 2011, from four sampling sites located on the Wisłoka River, in the town of Dębica and the surrounding area. The Wisłoka at all selected sites was characterized by alkaline or close to neutral pH (pH 6.5-7.7). Electrolytic conductivity ranged from 364 to 480 µS cm-1. The Wisłoka at the selected sites in the urban area and in the surrounding areas was characterized by high diatom species richness. The total of 238 taxa from 53 genera were recorded, of which the most numerous were: Nitzschia (44), Navicula (33) and Gomphonema (12). Achnanthidium minutissimum var. minutissimum, Amphora pediculus, Navicula gregaria, N. lanceolata, and Nitzschia dissipata ssp. dissipata were usually the dominant species. Chemical parameters indicated very good quality of water. However, the diatom indices used to assess the water quality, classified the studied water into a group corresponding to quality class III or IV.

The use of diatoms to assess the water quality in the Wisłoka River in the town of Dębica and the surrounding area

Department of Biological Foundations of Agriculture and Environmental Education, Faculty of Biology and Agriculture

Department of Soil Studies, Environmental Chemistry and Hydrology, Faculty of Biology and Agriculture

Department of Agroecology, Faculty of Biology and Agriculture

Oceanological and Hydrobiological Studies

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

The objective of this work was to examine the water quality using three diatom indices SPI, GDI and TDI. The material for the study was collected during four...

The use of diatoms to assess the water quality in the Wisłoka River in the town of Dębica and the surrounding area

Article Category: Original research paper

Pubblicato online: 22 giu 2016

Pagine: 191 - 201

Ricevuto: 24 lug 2015

Accettato: 14 ott 2015

DOI: https://doi.org/10.1515/ohs-2016-0018

Parole chiave
diatom indices SPI, GDI, water quality, PCA, RDA, Wisłoka River, Dębica town, SE Poland

© Faculty of Oceanography and Geography, University of Gdañsk, Poland. All rights reserved.

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

The use of diatoms to assess the water quality in the Wisłoka River in the town of Dębica and the surrounding area

Article Category: Original research paper

Pubblicato online: 22 giu 2016

Pagine: 191 - 201

Ricevuto: 24 lug 2015

Accettato: 14 ott 2015

DOI: https://doi.org/10.1515/ohs-2016-0018

Parole chiavediatom indices SPI, GDI, water quality, PCA, RDA, Wisłoka River, Dębica town, SE Poland

© Faculty of Oceanography and Geography, University of Gdañsk, Poland. All rights reserved.

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

Parole chiave
diatom indices SPI, GDI, water quality, PCA, RDA, Wisłoka River, Dębica town, SE Poland