For citations:

Kadimov Y.L. Dynamics of the age composition and reproductive potential of the Zhaiyk river roach: analysis for the period 2020-2024. Bulletin of Manash Kozybayev North Kazakhstan University. 2025;(4 (68)):58-63. (In Russ.) https://doi.org/10.54596/2958-0048-2025-4-58-63