TY JOUR TI INFLUENCE OF SIZE, SEX AND AGE ON INDIVIDUAL VARIABILITY OF LEUCOCYTE FORMULA OF BREAM ABRAMIS BRAMA LIVING IN IVANKOVSKOYE RESERVOIR KW bream Abramis brama KW peripheral blood KW pronephros KW spleen KW leukocytes KW Ivankovskoye Reservoir JO Transactions of Papanin Institute for Biology of Inland Waters RAS AU Suvorova, T.. PY 2025 IS 0 PB Papanin Institute for Biology of Inland Waters Russian Academy of Sciences