Abstract: Wetlands provide habitat for fish and wildlife, including endangered species. Pallikaranai wetland is only surviving wetland ecosystem in the South India. Chennai City 60% of wastes is dumped in the ecologically sensitive areas of Pallikaranai wetland. These wastes have highly toxicated heavy metals and affected the physico - chemical parameters in surrounded water and metabolic activities in fishes. Present study estimated the enzyme activities of different organs (gill, liver, muscle and intestine) for toxic induced (toxicated water sample collected from Pallikaranai wetland ecosystem) freshwater fish Oreochromis mossambicus (Peters) in two different sublethal concentrations (1% and 3%). As the result, the enzyme profile in the four tissues viz., gill, muscle, liver and intestine showed the decrease values in the activity of ALP and ACP. Enhanced activity of GOT and GPT were recorded in the gill, muscle and liver in different proportions. Glycogen phosphorylase activity showed a decline in the gill, muscle and liver tissues. The overall valuation confirmed that the fish habitat stressed from the polluted water sample. So immediately we must take action to avert the environmental pollution from surrounded industries and sewage water; and save Pallikaranai wetland ecosystem for the native animals.
Keywords: Pallikaranai wetland ecosystem, heavy metals, enzyme, Oreochromis mossambicus, environmental pollution.
Title: Studies on enzyme activities in heavy metal toxicated fish Oreochromis mossambicus (Peters) at Pallikaranai wetland ecosystem, Chennai, Tamil Nadu, India
Author: Punitha S, Elumalai K, Krishnamurthy R
International Journal of Life Sciences Research
ISSN 2348-313X (Print), ISSN 2348-3148 (online)
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