Assessment of the current state of fish in the reservoirs of the SNNP «Karkaraly»
DOI:
https://doi.org/10.51452/kazatu.2025.4(128).2089Keywords:
lake; Chinese carp; carp; Siberian roach; northern pike; river perch.Abstract
Background and Aim. Lakes Samal, Kimasar and Shokpartas Pond, located in the protected areas of Karkaralinsky National Park, are used for recreational purposes. Despite ongoing use of natural resources, these lakes remain insufficiently studied. The aim of this study was to assess the species composition and current state of fish populations.
Materials and Methods. Scientific research on the reservoirs of the Karkaralinsky GNPP was conducted in 2024, as a result, the state of fish populations in Lakes Samal and Kimasar and Shokpartas pond was studied using standard ichthyological research methods.
Results. In conclusion, Seven species from the family of carp, perch and pike were identified in the reservoirs of the Karkaralinsky SNNP. When studying Siberian roach, the age composition of catches was incomplete and included individuals from three to seven years old. Fulton's condition factor was generally consistent with regional indicators. All studied reservoirs inhabited by Chinese carp had been stocked with carp. The fatness rates of Chinese carp are significantly higher in Lake Kimasar than in the other reservoirs. Northern pike were found in two reservoirs of the national park – Lakes Samal and Kimasar. According to the age structure of river perch, three-year-old individuals predominated.
Conclusion. The study assessed the current state of fish populations in Lakes Samal and Kimasar and Shokpartas pond was studied. The ichthyofauna includes seven species (Chinese carp, carp, Siberian gudgeon, stone moroco, Siberian roach, northern pike, and river perch), of which four are native and three are acclimatized. Potentially commercial species include Siberian roach, Chinese carp,nothern pike, and river perch. Carp were not recorded in the catches. The biological parameters of these species are generally satisfactory. To maintain existing carp stocks, it is recommended to stock fingerlings and adult fish to support recreational and amateur fishing.
