Abstract

The purpose of the present study is to provide information on the effect of profenofos on the crab, Perisesarma bidens, a biologically significant mangrove crab. The crabs were exposed to profenofos concentrations of 0.038 ppm and 0.076 ppm (sublethal) for 28 days. The exposed gill tissue exhibited epithelial edema, necrosis, lifting, fusion of secondary lamellae etc. The histopathological symptoms in hepatopancreas were infiltration, large lumen formation and disappearance and bursting of haemocytes. In man, consumption of these crabs will cause the ill effects that are specific to the toxicant. This process will damage the organism silently, without causing any immediate abrupt changes. The changes may be at genetic levels inducing genotoxicity, but concerted effort in reducing the use of profenofos and implementing natural remedies for disease control in shrimp hatchery can help resolve the problem toxicant.

Keywords

Histopathology, Gill, Hepatopancreas, Perisesarma bidens, Profenofos.

Received on 10/10/2016, Accepted on 16/11/2016, Published on 31/12/2016