THE MODERN STRUCTURE OF THE ICHTHYOFAUNA OF THE YAGORLYK BACKWATER

In 2023-2024, 21 species of fish were recorded in the Yagorlyk backwater. 18 species have been recorded in the coastal zone, including the red book vyrezub (Rutilus frisii). Among them, the absolute dominants are perch (35.2%), needle fish (16.2%), common bleak (16%), the dominant ones are the goby Proterorhinus marmoratus (9.5%) and Rutilus heckelii (7.7%). In the waters of the backwater, the absolute dominants are Rutilus heckelii (70.6%) and common bream (11.8%), the dominants are zander and perch by 5.9%. The fatness coefficient of perch according to Fulton in midsummer averages 2.2, with a maximum of 2.7. According to Clark, the average was 1.9, with a maximum of 2.3.