Toxicity Evaluation and Bioaccumulation of Copper in Selected Tissues of Fresh Water Crab, Barytelphusa guerini from Aurangabad Region
V. K. Mukke* and D N Chinte
Journal Title:Journal of Chemical, Biological and physical sciences
Fresh water crabs are economically important because crabs are used as an alternative source of food by
the people from Aurangabad region. Heavy metal and their salts containing effluents are directly
discharged into the aquatic environment by many industries from Paithan and Aurangabad region. Heavy
metal pollutants are a major problem in aquatic environment because of their toxicity, their persistency
and tendency to accumulate in organisms and undergo food chain amplification.
In the present investigation acute toxicity test was carried out to determine the LC50 values (lethal conc.)
of copper sulphate by using static bioassay method. The LC50 values for 24, 48, 72 and 96 hrs of exposure
were recorded as 14.02, 13.56, 12.91 and 12.41 ppm respectively. In the present study the copper content
in different body parts of fresh crab, B. guerini was studied. The copper content was found high in all the
tissues as compared to control group. The observations in the present study showed marked variation. The
highest concentration of copper encountered in gill. The order of metal accumulation in various tissues of
the crab was gill> muscle> HP> ovary> Testis.