THE EFFECT OF SUGAR INDUSTRIAL EFFLUENTS ON THE PROTEIN, GLYCOGEN AND LIPID OF THE FRESHWATER CRAB, BARYTELPHUSA GLIERINI (H. MILNE EDWARDS) (DECAPODA, POTAMIDEA)M.S. GANGOTRI AND L.S. MATKAR
Environmental pollutants bring about disturbances in biochemical processes within the organisms. The freshwater crab, Barytelphusa guerini was exposed to acute and chronic exposures of sugar industrial effluents and it's effect on the biochemical constituents in various tissues were studied during the breeding and non breeding seasons. Protein levels decreased in the muscle, gill and hepatopancreas of both the sexes at all time intervals, but increased in gonads in both the breeding and nonbreecling seasons. The glycogen level decreased in gonads and gills at all exposure periods during the breeding and nonbreeding seasons, but an initial increase was seen in muscle and hepatopancreas upto 15 days of exposures, thereafter depletion of glycogen content in both the reproductive periods, was observed. Simultaneous decrease in. total lipids was also recorded in gonad and gills during the breeding and nonbreeding seasons at all exposure periods, whereas the muscle and hepatopancreas showed an increase in lipid content during the breeding season upto 15 days of exposure. Then there was small drop at 30 days of exposure. It was also observed that the acute exposures do not have any immediate effect, while chronic exposure recorded significant changes in the various tissues of this animal.
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