Abstract
The purpose of the present study is to afford information on the outcome of profenofos on the crab, <i>Perisesarma bidens</i>, a biologically momentous mangrove crab. The crabs were exposed to profenofos concentrations of 0.038ppm and 0.076 ppm (sublethal) for 28 days. The muscle tissue showed disintegrated epidermis with vacuolation, gap formation in between the muscle bundles, necrosis, marked thickening and separation of muscle bundle and pronounced intramuscular oedema with minor dystrophic changes. The histopathological changes in the ovary are destruction of epithelial layer with oocytes degeneration and disorganization of nucleus, pycnosis of nutritive cells and oogonial cells, loosely arranged epithelial cells and vacuolization. The histopathological changes induce toxicity at cellular level and hence all possible measures should be taken to prevent the occurrence of profenofos toxicity in the aquatic environment and crustaceans.
Highlights
The purpose of the present study is to afford information on the outcome of profenofos on the crab, Perisesarma bidens, a biologically momentous mangrove crab
Less attention towards the morphology and histology of the body tissues in crab P. bidens in relation with physico-chemical parameters has focused and the major objective of the present paper is to study histopathological alterations in the muscle and ovary of P. bidens
Among the test concentrations prepared from the preliminary toxicity test the International Journal of Biomedical Science and Engineering 2017; 5(1): 1-8 mortality of 50% of the population after 96hrs exposure was observed on 0.38ppm
Summary
The purpose of the present study is to afford information on the outcome of profenofos on the crab, Perisesarma bidens, a biologically momentous mangrove crab. The crabs were exposed to profenofos concentrations of 0.038ppm and 0.076 ppm (sublethal) for 28 days. The muscle tissue showed disintegrated epidermis with vacuolation, gap formation in between the muscle bundles, necrosis, marked thickening and separation of muscle bundle and pronounced intramuscular oedema with minor dystrophic changes. The histopathological changes in the ovary are destruction of epithelial layer with oocytes degeneration and disorganization of nucleus, pycnosis of nutritive cells and oogonial cells, loosely arranged epithelial cells and vacuolization. The histopathological changes induce toxicity at cellular level and all possible measures should be taken to prevent the occurrence of profenofos toxicity in the aquatic environment and crustaceans. A large numbers of pesticides for the control various agricultural. 60-70% of its population dependents on agriculture. 30% of its agricultural produce is lost owing to pest aquatic contamination because its biochemical stress infestation. In the absence of a better alternative, deployment responses are quite similar to those found in mammals [4]
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