WATER QUALITY DEMONSTRATES DETRIMENTAL EFFECTS ON MYSTUS SPECIES INDICATING POLLUTANT TOXICITYMoumita Maity and Rajarshi BanerjeeAbstract Water quality of some water bodies in Haldia. Mystus gulio was treated for 20 days in laboratory conditions from water collected from the selected sources. Post assessment they were assessed through histopathological studies as well as on some physical and biochemical parameters. The study provided noticeable histopathological lesions depending on the pollution level of the water source on tissue samples of muscle, gill and parts of skin which were stained with haematoxylin -eosin. Treatment wise variations were also observed in biochemical and physiological parameters. Cellular degeneration, splitting of muscle fibre, edema were common symptoms for muscle study and absence of secondary gill lamellae, epithelial rupture, epithelial lifting, cell hypertrophy were found for gill study. The study indicated that the water sources contained different types of pollutants which had different toxic effects on the aquatic pollution load. The study concluded not only the presence of pollutants but also the response of the organisms being in direct contact with surrounding environment where the fish species acted as a biomarker. |