VIJAYAMOHANAN AND G. ACHUTHAN NAIR
Abstract
Studies on the muscle and liver of the freshwater fishes Oreoclzromis mossambicus and Etroplus marulatus exposed for seven days in three sub-lethal concentrations (0.01%, 0.05, 0.10%) of Titanium dioxide industrial effluent revealed alterations in their water content, glycogen, protein, lipid and ash. A reduction in the pH and oxygen of the effluent-mixed media was evident when compared with the normal freshwater (control). A significant increase in the muscle and liver water content and glycogen, and a decrease in the protein and lipid were discernible in the effluent-treated fishes when compared with the control. A positive correlation was observed between concentrations of the effluent used and the ash content of fishes.