Popov, N., Barabanov, V., Shalgimbayeva, S., Batayeva, D., Zhumanova, A., Muratkyzy, A. and Abdullayeva, B. 2026. Feeding resources and key nutrients of commercial fish in the Ural-Caspian Basin. International Journal of Biology and Chemistry. 18, 2 (Jan. 2026). DOI:https://doi.org/10.26577/IJBCh20251827.