Radiation induced effects on viability and antioxidant enzymes of crustaceans from different habitats.
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Date
2010-05
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Abstract
The paper describes differential tolerance of two fresh water crustaceans Mesocyclops hyalinus and Allodiaptomus satanus
to 60Co gamma radiation. Mesocyclops hyalinus is dominant species at site 1, near a Thermal Power Plant at Kolaghat East Midnapore
where fly ash deposition is a regular phenomenon. Allodiaptomus satanus is dominant species at site 2 at Kolkata, Ballygung where
anthroponotic activities are more pronounced. M. hyalinus is naturally exposed to more stressful situation than A. satanus as revealed
by comparing the hydrological parameters of the two habitats. Experimental exposure to ionizing radiation resulted in differential
changes in viability, morphology and antioxidant enzyme activities in the two selected species. Survival experiments showed greater
tolerance of M. hyalinus compared to A. satanus up to 8Gy (absorbed dose) after which it showed drastic fall in survival. More
pronounced morphological changes were observed in A. satanus as compared to that in M. hyalinus. The pattern of changes in
antioxidant enzyme activity is distinctly opposite in the two radiation exposed species. While in M. hyalinus stimulation in activity of
both CAT (excepting at 10Gy absorbed dose) and SOD was observed A. satanus showed decrease in activity of both the enzymes
when compared to their unirradiated counterparts.
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Keywords
Radiation, Zooplanktons, Oxidative stress, Viability, Antioxidant enzymes
Citation
Mukherjee D, Manna M, Selvaraj S, Bhattacharya S, Homechoudhury S, Chakraborty A. Radiation induced effects on viability and antioxidant enzymes of crustaceans from different habitats. Journal of Environmental Biology. 2010 May; 31(3): 251-254.