Studies on antioxidant status in Mugil cephalus in response to heavy metal pollution at Ennore estuary
2009
Padmini, E | Usha Rani, M | Vijaya Geetha, B
Estuaries, the important component of natural environment are under pressure nowadays due to pollution from different sources like industries, agricultural fields etc. Ennore estuary one of the highly polluted estuary situated in Chennai, Tamilnadu, India, due to heavy industrialization surrounding this site poses serious threat to its inhabitants. The present paper focuses on studying the response of the fish Mugil cephalus with reference to its antioxidants during their exposure to metals like iron and chromium present in the industrial effluents that are discharged into the Ennore estuary. The results on comparison with unpolluted Kovalam estuary showed that fish from Ennore experiences severe oxidative stress with significant alteration being observed with antioxidant enzyme activities. Since these results were also found to vary with seasons, the determination of oxidative stress biomarkers in M. cephalus along with seasonal variations may serve as a convenient approach during pollution biomonitoring programme.
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