COMPARATIVE ANALYSIS OF THE DIET OF NAKED OSMAN GYMNODIPTYCHUS DYBOWSKII IN THE SHELEK AND BOROKHUDZIR RIVERS (BALKHASH BASIN, REPUBLIC OF KAZAKHSTAN). EB [Internet]. 2025 Dec. 20 [cited 2026 Jul. 23];104(3):75-86. Available from: https://bb.kaznu.kz/index.php/biology/article/view/2409