CURRENT STATE OF ICHTHYOFAUNA OF THE KAPSHAGAY RESERVOIR AND THE ILE RIVER

Abstract

The article discusses the species of fish living in the Kapchagai reservoir and the Ile River, and their distribution area in reservoirs. Information is provided on the hydrological regime of the Ile River and environmental factors affecting the fish population. Currently, the issue of protecting the number and stocks of fish and increasing their growth is being considered. In addition, rare and endangered fish of the Kapchagai Reservoir are discussed. As a result of the research, the number, distribution, and frequency of occurrence of rare and endangered fish in the Kapchagai reservoir and the Ile River in front of the reservoir were determined, compared with data from previous years, and an assessment of their condition was given. The maximum allowable catch in the Kapchagai Reservoir for the period from July 1, 2022 to July 1, 2023 is based on indicators of biological characteristics and the general state of the population structure of each species. Sustainability indicators and precautionary principles were taken into account when assessing the maximum allowable catch of certain fish species. In this case, the established or proposed fishery, the age of mature fish, as well as the percentage of adult fish in each age group were taken as the basis for the calculation.