Kvalitet vode akumulacije Mantovo, Republika Makedonija

Abstract

The aim of the paper is to evaluate the quality of water of the Mantovo Reservoir (Southeast Macedonia)based on physico-chemical parameters and the macrozoobenthos. Monthly sampling was performed during 2003 and 2004. Temperature and DO depth profile data indicate that the Mantovo Reservoir is a dimictic lake. Based on mean nutrient concentrations, the Mantovo Reservoir can be considered as being phosphorus-deficient. During the summer stratification, very high concentrations of Mn (2,819 μg/l)and Cu (147.6μg/l)were detected in the lower profundal. Limnodrilus hoffmeisteri was the dominant species, which indicates the presence of organic pollution. Dominance of Chaoborus crystallinus and decline in abundance of L. hoffmeisteri in the lower profundal indicate a deterioration of environmental status in the deepest part of the lake.

Cilj rada je bio da se proceni kvalitet vode akumulacije Mantovo (jugoistočna Makedonija)na osnovu fizičko-hemijskih parametara i vodenih makrobeskičmenjaka. Vršeno je mesečno prikupljanje uzoraka tokom 2003. i 2004. Podaci o temperaturi i rastvorenom kiseoniku po profilima indikovali suda je Mantovo dimiktička akumulacija. Na osnovu koncentracije nutrijenata, Mantovo se može okarakterisati kao akumulacija sa deficitom fosfora. Tokom letnje stratifikacije, izmerene su vrlo visoke vrednosti mangana (2819 μg/l)i bakra (147.6μg/l)u donjem profundalu. Limnodrilus hoffmeisteri je bio dominantna vrsta, što ukazuje na prisustvo organskog zagađenja. Dominacija vrste Chaoborus crystallinus, uz opadanje abundance L. hoffmeisteri u donjem profundalu, indikuje pogoršanje statusa u najdubljem delu jezera.