Authors : M. J. Shaikh
Page Nos : 133-135
Description :
The present research work was conducted to determine the bioaccumulation of toxic metals (Cadmium and Chromium) in tissues (Gills and Liver) of the fish Labeo rohita from Godavari River at Nathsagar Dam, in Maharashtra. The concentration of cadmium in sample water collected from site I was maximum 0.0082 mg/ l, which is more than pe rmissible limits for drinking water. The concentration of chromium in sample water is however less and the mean was 0.064 mg/l. The accumulation of cadmium in liver was found more (1.97 mg/kg)
compared to gills (1.43 mg/kg). The maximum bioaccumulation factor (BAF) of cadmium was 248.65 in the liver and maximum BAF of cadmium was 178.38 in the gills. The concentration of chromium was found more (3.23mg/kg) in liver compared to gills (2.93 mg/kg). The BAF of chromium was found maximum 50.98 in live r and 46.56 in gills. Howe ve r, the accumulation of cadmium in both the tissues of Labeo rohita was less than permissible
limits, but that of chromium was found to be slight ly more .
Keywords: Labeo rohita, Nathsagar Dam, Cadmium, Chromium, Bioaccumulation factor.
