LEUKOCYTES AND THROMBOCYTES OF PERIPHERAL BLOOD OF THE BLACK SEA-CASPIAN TYULKA (CLUPEONELLA CULTRIVENTRIS, NORDMANN 1840) OF THE IVANKOVO AND UGLICH RESERVOIRS

For the first time, hematological parameters of tyulka (Clupeonella cultriventris, Nordmann, 1840) in reservoirs Upper Volga were studied. The composition leukocytes and thrombocytes, morphometric characteristics cells studied by routine methods light microscopy. It was shown that blood has a lymphocytic character, but an increase number granulocytes their size found against background decrease lymphocytes lower section Ivankovo ‒ upper Uglich reservoirs, which may indicate presence anthropogenic pressure. proportion thrombocytes approximately three times higher than leukocytes, indicates high clotting tyulka. Correlations between platelets content basic cations anions water