A Histological Study on Tilapia (Oreochromis Mossambicus) for Assessment of Bioaccumulation of Pollutants and its Impact at Koyali and Dumad Pond of Vadodara District, Gujarat

The results of the diverse toxicant exposure at small levels are presented below. The relationship between toxic expressions in experimental and in situ exposure leads to the conclusion that the pathological changes brought about in the organs of fish from Koyali pond are similar to or only slightly more severe than those observed for low dose exposure for 30 days in experimental groups. While in-situ exposure involves a diversified and vast variety of environmental circumstances, the research setup's environmental parameters are significantly less varied because they are tightly controlled. After 30 days liver, muscles and gills were severely affected and different cells have shown necrosis, inflammation, oedema and vacuolar degeneration. These effects were not seen clearly in 15 days treatment. Results suggests that timely bioremediation and pollution control at study sites is required as soon as possible.