OCENA EKOLOŠKOG STATUSA UVAČKIH AKUMULACIJA NA OSNOVU ZAJEDNICE RIBA

Abstract

Istraživanja zajednica riba obavljena su u oktobru 2019. godine u akumulacijama Uvac, Zlatar i Radoinja na području Specijalnog rezervata prirode ″Uvac″. Ukupno je registrovano prisustvo 12 vrsta iz pet familija. U svim akumulacijama zabeležena je dominacija ciprinidnih vrsta. Vrednosti indeksa saprobnosti (S) varirale su od 1,87 (Radoinja) do 1,95 (Uvac), što odgovara β mezosaprobnim vodama II klase boniteta (umereno zagađene vode). Najveći diverzitet zabeležen je za akumulaciju Uvac, a najmanji za Radoinju. Akumulacija Radoinja imala je ekološki potencijal koji spada u III-IV klasu, dok je kod ostalih akumulacija zabeležena II-III klasa. Ekološki status u ispitivanim akumulacijama je zadovoljavajući.

Ichthyofaunistic surveys were conducted in October at Uvac, Zlatar, and Radoinja reservoirs in the area of Special natural reserve ″Uvac″. The presence of 12 species from five families was recorded. The dominance of cyprinid species was recorded in all reservoirs. The values of the saprobic index (S) varied from 1.87 (Radoinja) to 1.95 (Uvac), which corresponds to β mesosaprobic waters of the II quality class (moderately polluted waters). The greatest diversity was recorded for the Uvac reservoir, and the lowest for Radoinja. Radoinja reservoir had an ecological potential that belongs to the III-IV class, while the other reservoirs had a II-III class. The ecological status in the studied reservoirs is satisfactory.