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Bisphenol A, a suspected endocrine disrupting chemical, is widely used in the manufacture of polycarbonate plastics and epoxy resins. With increasing industrialisation, the release of Bisphenol A in the environment is increasing in India. Bisphenol A is released in the environment from landfill leachates, industrial point sources, municipal sewage and by burning. Water bodies are the ultimate sink for Bisphenol A. People consuming fish captured from water bodies polluted with Bisphenol A can be exposed to the chemical through the fish. Channa punctatus, is an important food fish of India and neighbouring areas. In this study the effect of 30 days Bisphenol A exposure on the haematological parameters of Channa punctatus was assessed. Vitamin C, a known antioxidant, was shown to improve the changes in almost all haematological indices tested except at the highest concentrations of Bisphenol A used in this study. This study shows that Channa punctatus can be used as a useful sentinel species to assess pollution of water bodies by Bisphenol A and that the deleterious effects of Bisphenol A are probably caused by increasing oxidative stress in tissues which can be offset by vitamin C.

Bisphenol-A (BPA) is a high volume industrial chemical that is widely employed in themanufacture of polycarbonate plastics, epoxy resins, flame retardants and other industrialproducts. The release of BPA into the environment far exceeds its removal from the differentenvironmental matrices. Alarming levels of BPA have been reported in air, water, soil andbiological fluids like serum, urine and even amniotic fluid. As waterbodies serve as the ultimatesink for toxicants, the effect of BPA on aquatic fauna needs to be investigated. BPA and othersimilar xenobiotics are known to induce oxidative stress by disturbing the redox balance of thebody. In this study we looked into the activity of antioxidant enzymes of the liver in Channapunctatus following BPA exposure. As vitamins are also known to reduce oxidative stress, theeffect of co-exposure of vitamin C and BPA was also studied. We observed significant changesin the activity of antioxidant enzymes as a result of BPA exposure and alleviation of theseeffects due to vitamin C.

Content based image retrieval is an important field of multimedia applications. This has been used for extraction of similar images from the large datasets. Systems that have been used for content based image retrieval system use various features that are low level. Various approaches and features have been widely used for extraction of relevant information. In this paper a new approach has been proposed that use combination of colours, shape and texture features. SURF and Fuzzy has been combined in this system for efficient retrieval of the relevant images. SURF is a fast approach that compute point based descriptions about the shape features of the images. Fuzzy interference has been used for computation of fuzzy membership values so that efficient feature vector can be developed. On the basis of parameters analysis we can predict that proposed approach provide better performance.

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