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The impact of pollution on the quality of the Lake Ohrid water and the Barbus meridionalis petenyi Heckel

International Journal of Avian & Wildlife Biology
Gazmend Iseni, University of Tetovo, Macedonia


This paper presents the results of seasonal research during 2016, which are important for assessing the level of eutrophication of the Ohrid Lake littoral. The water quality of the lake was monitored through physico-chemical and bacteriological parameters as well as histologic markers of the liver (Barbus meridionalis peteneyi H.). Research was conducted in three locations: Lubanishte, Peshtane, and Metropol. The negative effects of pollutants on aquatic ecosystems are closely related to histopathological lesions of the fish liver. Mrena is a typical bentofag, very sensitive to changes in the aquatic environment, and is an ideal organism for assessing the state of aquatic ecosystems. The fish liver is sensitive to toxic substances and metabolic disorders. Histological analysis revealed the presence of parasites and granulomatous inflammation at the level of hepatocellular parenchyma.


Eutrophication, Ohrid Lake, liver, Barbus meridionalis peteneyi H, digestion, household, industry, construction, Lake, water, measures, according, heterotrophic, liquefied