10.4122/1.1000001288
Kabelkova, I.
I.
Kabelkova
Stastna, G.
G.
Stastna
Stransky, D.
D.
Stransky
Malec, L.
L.
Malec
Changes of stream ecology along the urbanization gradient
DTU Library, Technical University of Denmark (DTU)
2005
Conference full text
Benthic invertebrate
ecomorphology
hydraulic stress
stream ecology
urbanization
water quality
Czech Technical University In Prague, Faculty Of Civil Engineering
Faculty Of Civil Engineering
Czech Technical University In Prague
2005
en
10.4122/1.1000001287
application/pdf
A study analyzing changes of the ecological status of a small stream (the Botic, Prague) along the urbanization gradient is carried out in order to identify major deficits and their causes. Quantitative assessment of benthic invertebrate fauna, river ecomorphology and water quality is being performed. Results show a serious ecological degradation of the whole Botic Stream (benthic index of biotic integrity indicates a very poor, poor and only once fair status) due to the combined effects of poor water quality (class IV or V according to the Czech standards), ecomorphological deficits including serious impacts of dams and reservoirs and increased hydraulic stress from the urban drainage system. The Botic Stream has a certain rehabilitation potential in the upstream rural region whereas measures in the highly urbanized downstream catchment would bring no improvement of the biological status at present.