Sublethal Effects of Organophosphate Chlorpyrifos on Hemato-Immunological Parameters of the Gercacinid Crab, Cardiosoma armatum (Herklots, 1851)

Low insecticide exposure has been shown to cause profound effects on non-target organisms, including crabs. Therefore, the changes in hematological parameters, serum biochemistry and antioxidant enzymes Gercacinid crab, Cardiosoma armatum were assessed during 28-day four concentrations of organophosphate chlorpyrifos (0.003, 0.006, 0.03 0.06 mg/l). The results showed a significant (P= 0.0) decrease packed cell volume total haemocyte count crabs (except 0.003 mg/l concentration) compared control group. There no hemocyte sedimentation rate, granulocyte agranulocyte, although all groups increased rate agranulocyte with respective ranges 3.00-3.02 mm/hr 64.00-67.00 %. Except for alkaline phosphatase, there variation biochemical profile both crabs, induced increase measured parameters. protein level activities (superoxide dismutase, catalase malondialdehyde) inhibited groups. these hemato-immunological parameters suitable biomarkers sub-lethal at tested, this will be useful biomonitoring aquatic environment.