Histopatology renal in fish from the contaminated sites Pozim river (Republic Udmurtia)

The results of histological examination of the mesonepros in the roach ( Rutilus rutilus Linnaeus, 1758) and bleak ( Alburnus alburnus Linnaeus, 1758) from p. Pozim living in the city of Izhevsk. The dynamics of the occurrence of histological specimens with renal impairment in populations of two of the most common fish species in the studied reservoir. The description, classification and dynamics of the occurrence of certain types of kidney histopathology of representatives of each species. Based on the analysis of occurrence of individuals with histological abnormalities, diversity and extent of mortality of renal disease confirmed by a high level of anthropogenic load on the studied reservoir. Explains the use of histological abnormalities in fish as an indicator of the ecological status of the water body when exposed to a specific set of adverse environmental factors.