Taxonomic and ecological analysis of 21 diatom species was carried out. 13 of them have not been recorded in Poland until the present study; they are: Amphora montana Krasske, Navícula erifuga Lange-Bertalot, N. goeppertiana ...

The Dobrzynka River is a left tributary of the 21.5 km long Ner River. Benthos samples were collected at the town of Pabianice, where the river is affected by communal-industrial sewage inflowing from a sanatorium at the ...