This article provides a scientific analysis of the morphometric indicators of fish inhabiting the water bodies of the Chirchiq River and the correlation relationships between these parameters. The morphometric results reflect the biological condition of the fish populations. The highest growth indicators were recorded for Ctenopharyngodon idella (average length 32.7 cm; body weight 512 g), which is attributed to the phytophagous nature of this species and its adequate supply of food resources. A strong positive correlation between fish length and body weight was established, with correlation coefficients ranging from R = 0.96 to 0.98zif8, confirming a close relationship between these morphometric traits.