TY JOUR TI Comparative morphological characteristics of populations of the common walleye Sander lucioperca (Linnaeus, 1758) of the Kuban River and the Sea of Azov KW common walleye KW the Kuban River KW the Sea of Azov KW meristic and plastic features KW coefficient of variation KW Student's t-test KW cluster analysis JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Stukov, A.. AU Abramchuk, A.. AU Pashinova, N.. PY 2026 IS 2026 PB Astrakhan State Technical University