Kovalenko Y. Physiological and biochemical features of formation of new stable populations of carp fish under the influence of toxic pollution

The paper presents research materials on changes in the physiological and biochemical state of some carp fish species under the influence of anthropogenic pollution of varying degrees of water intensity. As a result of research, interspecific and interpopulation differences of morpho-physiological and physiological-biochemical parameters of fish were established, which were formed as a result of long-term or constant inflow of toxic substances into water bodies. This enables carp fish to maintain their vital processes and ability to reproduce. To better understand the processes of carp species selection and their adaptive responses to toxic substances, a number of acute and chronic experiments were performed, which reflected the effect of reference toxic substances in sublethal and lethal concentrations. Experimental and field studies have made it possible to establish the influence of toxic substances on fish organisms and to characterize the state of the ecological environment of lakes and the quality of water in them according to physiological and biochemical parameters.