Effect of cadmium ions on induction of nuclear anomalies in carp erythrocytes

The frequency of micronuclei and other nucleus abnormalities in carp erythrocytes after 24 hours of cadmium ions exposure at a concentration of 0 (control), 0.0005, 0.001, 0.002, 0.004, 0.005, and 0.008 mg/l has been studied. The frequencies of erythrocytes with micronuclei were equal to 0.47 (in control), 0.50, 0.51, 0.51, 0.55, 0.63, 0.54%, respectively. The cadmium ions exposure with the concentration of Cd+2 0.005 mg/l caused a statistically significant increase in the frequency of micronuclei (0.63%) in comparison with the control. The total frequencies of all nuclear anomalies in erythrocytes (i.e. micronuclei, blebbed, lobed, notched nuclei, binuclear and amitotically dividing cells) were equal to 0.75% (in control) and 0.80, 0.82, 0.90, 1.02, 1.19, 0.89% in the experimental variants, respectively. When fish exposed to cadmium ions concentration of 0.004 and 0.005 mg/l the statistically significant differences of the total frequencies of the anomalies from the control value were established