HISTOPATHOLOGICAL ANALYSIS OF GILLS IN FISH POPULATION OF RESERVOIR “STREZEVO” (R.MACEDONIA)

During the summer period of 2013, in the reservoir Strezevo have been caught total of 14 pieces of fishes. Out of each specimen there have been dissected a piece of gills for histological analysis, which, thereafter has been processed on the standard procedure for development of histological preparation. They have been analyzed under a microscope and the registered tissue lesion has been photographed. Based on standard histopathological analysis some gills lesions were detected. Microscopic analysis has revealed a series of circulatory and inflammatory changes. Some structural lesions in gill tissue have been accepted as valid biomarkers of anthropogenic stress at fish.