author(s)
Seyidli YM and Nasirov AM

abstract
The article provides information on the formation of parasitic fauna in annual White Amur fishes cultured in the lakes of Mingechevir Scientific Research Laboratories. Depending on the size of body the fishes were subdivided into 3 groups by months of study and changes in composition of the parasite species were studied. It was obvious that the first group of fishes which were at an early stage of development were infected with parasites that develop without an intermediate host. Parasites with a complex development cycle were prevailed after active feeding of White Amur fingerlings due to an increase in temperature. An increase in the variation in the composition of parasites was revealed due to increase in morphometric size of each of three groups of White Amur fishes. Quantitative and qualitative changes of parasites were observed with the growth of fishes.