RT Journal Article SR Electronic A1 Sukop, Ivo A1 Šťastný, Jan A1 Vítek, Tomáš A1 Brabec, Tomáš T1 Hydrobiological study of the small stream on the Czech-Moravian Highlands JF Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis YR 2014 VO 58 IS 4 SP 213 OP 222 DO 10.11118/actaun201058040213 UL https://acta.mendelu.cz/artkey/acu-201004-0023.php AB Zoobenthos of the Fryšávka Rivulet was investigated in the years 2007-2008. Research included also physico-chemical factors of water (temperature, pH, conductivity, oxygen saturation). Altogether, 144 taxa of zoobenthos were determined in the Fryšávka Rivulet: Coelenterata (1 taxon), Turbellaria (1 taxon), Oligochaeta (6 taxa), Hirudinea (1 taxon), Mollusca (5 taxa), Amphipoda (1 taxon), Decapoda (1 taxon), Acari (1 taxon), Ephemeroptera (18 taxa), Plecoptera (18 taxa), Heteroptera (1 taxon), Megaloptera (1 taxon), Planipennia (1 taxon), Trichoptera (36 taxa), Coleoptera (8 taxa), Diptera (44 taxa). Altogether, 76 taxa of zoobenthos were determined in Medlovka brook: Coelenterata (1 taxon), Turbellaria (1 taxon), Oligochaeta (2 taxa), Mollusca (1 taxon), Isopoda (1 taxon), Amphipoda (1 taxon), Acari (1 taxon), Ephemeroptera (14 taxa), Plecoptera (8 taxa), Megaloptera (1 taxon), Trichoptera (17 taxa), Coleoptera (6 taxa), Diptera (22 taxa).The average abundance of zoobenthos of the Fryšávka Rivulet was 3208 ind.m<sup>-2</sup>, the average biomass was 7.5 g.m<sup>-2</sup>, respectively. The same values for the Medlovka brook were: abundance 3238 ind.m<sup>-2</sup> and biomass 5.8 g.m<sup>-2</sup>. The average value of the saprobic index for the whole Fryšávka Rivulet was 1.25 (oligosaprobity), for the Medlovka brook 1.42 (oligosaprobity).