Evaluating Environmental Pollution by Applying Oxidative Stress Biomarkers as Bioindicators of Water Pollution in Fish
Morina Valon1, Aliko Valbona2, Gavazaj Fahri3, Maxhuni 4, Kastrati Dhurat5, Cakaj Fatmir3
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1 Faculty of Geosciences and Technology, University of Prishtina, Mitrovice, Kosovo
2 Department of Biology, Faculty of Natural Sciences, Tirana University, Tirana, Albania
3 University of Medical Sciences “Rezonance”, Prishtina, Kosovo
4 Environmental Protection Agency (KEPA)
5 Department of Biology, Faculty of Natural Sciences, University of Prishtina, Prishtine, Kosovo
Pol. J. Environ. Stud. 2013;22(5):1519–1523
Antioxidant enzyme activities of fish (Cyprinus carpio L.) were determined in order to detect the effects of pollution of the Sitnica River in Kosovo on fish physiology and biochemistry. Activities of three antioxi- dant defense enzymes as catalase (CAT), superoxide dismutase (SOD), and glutathione-S-transferase (GST) in the blood of fish were chosen as bioindicators. Fish (n=21) were sampled during March-May and August- September 2010-12 from Ferizaj, Vragoli, and Plemetin (Sitnica River). Plasmatic CAT, SOD, and GST were significantly higher (P<0.001) in fish from polluted Vragoli and Plementin sites than Ferizaj. Ferizaj is a source of the river site, so is less contaminated than the two other sites. These three enzymes constitute a sensitive biochemical bioindicator and can be used for detection of chemical pollution in fish. Based on results of our research we can conclude that the Sitnica River is polluted mainly by industrial and urban discharge of liquid waste products. As a consequence, legal actions need to be taken in order to prevent environmental pollution on the site.