RELATIVE STUDY OF HEAVY METALS COPPER AND NICKEL ON THE BLOOD CELLS OF AQUATIC LIFE.

Heavy metal pollution in soil and water has severely affected the environment. These metals in environment are transferred into physico – chemical forms that are highly toxic and hazardous to aquatic life and humans. The present study is based on the Indian major carp ( Labeo rohita ) being the prime cultured species in poly culture practices in India. Hence the impact of heavy metal on the cellular level of this candidate species was chosen for the study. To prove this the fish Labeo rohita was subjected to different heavy metal concentrations of Copper and Nickel and hematological alterations were observed in different target sites like blood and muscles. Structural alterations were observed in blood cells of the fish exposed to heavy metals in different concentrations of ppm. Blood smear prepared from fish was stained with Leishmann’s stain and different deformities were observed like cell membrane damage, vacullation, reduction in nucleus size, nucleus shifting, wrinkling of the membrane etc. This leads to fish poisoning and its nutritive value is also lowered. The results suggests that its prime time when different methods should be adopted to check metal pollution in water.