Influence of Crab Haemolymph on Clinical Pathogens

Abstract: Marine organisms are capable of surviving and growing in habitats of extremes. In crustaceans, the defense system against microbes rests largely on cellular activities performed by hemocytes such as adhension, phagocytosis, encapsulation, nodule formation and melanisation. In the present study, seven crabs species Charybdis feriata, C. lucifera, C. amboinensis, C. natator, Portunus sanguinolentus, P. pelagicus and Dromia dehanni, were collected from the mouth, oyster and mangrove region of Vellar estuary for the antimicrobial studies. The antibacterial activity was detected maximum zone of inhibition in the haemolymph of P.pelagicus against Staphylococcus aureus (15mm) where as minimum activity (4mm) was detected in the haemolymph o