Summary of Abstract Submission

Abstract Submission No. IO50-03-0012PresentationOral

INTEGRATED BIOMARKER RESPONSES IN MARINE GASTROPOD (NERITA CHAMAELEON) FROM GOA COAST, INDIA

JACKY BHAGAT*1, ANUPAM SARKAR2, Vipin Singh1, Laxmi Raikar1, B S Ingole1

1 National Institute of Oceanography, Dona Paula, Goa, India
2 Retd. Scientist, National Institute of Oceanography, Dona Paula, Goa, India

ABSTRACT :

A multi-biomarker approach was performed to assess the impact of environmental contaminants in marine gastropod, Nerita chamaeleon from Goa, west coast of India. A wide array of genotoxic (DNA damage as measured by comet assay and alkaline unwinding assay), biochemical (SOD, CAT, GST, LPO and AChE) biomarkers along with PAH in marine snails collected from different sites such as Arambol, Anjuna, Sinquerim, Dona Paula, Velsao, Betul and Palolem were measured. Total PAH in the snail tissue was in the range from 5.29 to 12.14 g/g wet weight. Significant variations in DNA damage and biochemical biomarkers were observed along the sites. Results indicated that snails from Goa region are responding to contamination in a site specific manner. Standardized values of biomarker response were visualized using star plots, which shows various patterns for different biomarkers. The mean IBR value was found to be highest at Dona Paula (8.070.91). Additionally, the IBR values were correlated with PAH concentration in snail tissues. These results suggests, IBR coupled with chemical analysis might be a useful tool for the assessment of environmental pollution in the aquatic ecosystem.