IMPACT OF PHYSICO-CHEMICAL PARAMETERS ON GILLS OF FRESHWATER CRAB BARYTELPHUSA CUNICULARIS (WESTWOOD, 1836)Abstract
Environmental pollution is one of the undesirable side effects of industrialization and found responsible factor for environmental degradation. Water samples and crabs Barytelphusa cunicularis were collected from Gadhinglaj tahsil and analyzed for Physico- chemical parameters and heavy metals respectively. The results showed high range of pH and high values of alkalinity, hardness, chloride, sulphate, TDS, COD. The heavy, metal contamination was in the order of sodium > iron >potassium. The results indicate altered physico-chemical parameters and heavy metals resulting in massive destruction of gill architecture which was concentration and time dependent. Fluctuations in physico-chemical parameters has influenced gill lammelles of crab Barytelphusa cunicularis. Histopathological studies revealed noticeable changes in the gills like clumping of cells, detachment of epithelial surface in primary lamella and destruction of mucosal cells. The gills showed vacuolization in the gill stem, ruptured gill lamellae, connective tissue cells was damaged, destructed with congestion of haemocytes in the gill lamellae are observed. The results obtained were discussed in relation to physico-chemical parameter over respiratory mechanism in crab Barytelphusa cunicularis.
Seema Shrishailappa Sakhare * and Nitin Anandrao Kamble
Department of Zoology, Shivaji University, Kolhapur, M. S., India
22 July, 2014
29 September, 2014
01 December, 2014
01 March, 2015