Publication details

Fish and macrozoobenthos in the Vlára stream drainage area (Bílé Karpaty Mountains)



Year of publication 2007
Type Article in Periodical
Magazine / Source Czech Journal of Animal Science
MU Faculty or unit

Faculty of Science

Field Ecology
Keywords fish community; macroinvertebrates; bioindicators; Bílé Karpaty Mountains
Description Fish fauna and macrozoobenthos were surveyed at 51 and 32 sites, respectively, in mountain and submountain streams of the Vlára stream drainage area in the Bílé Karpaty Mountains. In total, 15 fish species were registered. Brown trout and stone loach were the most frequent species, followed by chub, gudgeon and minnow. The species richness increased downstream in the mainstream of the Vlára stream (maximum of 10 species at the lowest study site). Qualitative data on fish assemblages did not fully correspond with the environmental stress. Macrozoobenthos indicated a minor decrease in water quality downstream of small villages and farms. Larvae of dipterans (Chironomidae and Simuliidae in particular) and mayflies (Ephemeroptera) dominated amongst the temporary water macroinvertebrates, whilst numerous populations of Gammarus fossarum (Amphipoda) and in some cases also of Asellus aquaticus (Isopoda) were recorded as permanent inhabitants of clean and polluted stretches, respectively.
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