Effects of nickel on haematological parameters in the estuarine fish liza parsia

Effect of 10 and 30 % sublethal concentration (12.4 ppm; 96 h LC50) of nickel on the haematology of Liza parsia after the exposure period of 30 days was studied. The RBC count (-35.82%) and Hb content (-63.28%) decreased significantly with an increase in WBC count (+28.95%). The light microscopic studies revealed many morphological changes in the RBC of fish such as wrinkling of cell membrane, vacuolization and rupture of erythrocytic membrane.