TOXICITY OF DIEMETHOATE TO THE FRESHWATER FISH RASBORA DANICONIUS ON HISTOLOGY OF GILL
In the present investigation freshwater fish, Rasbora daniconius was exposed to sub lethal concentrations of dimethoate at Lc50 of 96 hours i.e. 9.136 ppm to determine histopathological changes in the gill morphology. The gills showed various histopathological changes were partial degeneration of epithelium of secondary gill lamellae, vacuolation, fusion, degeneration of gill lamellae and separation of basement membrane where as the shortening of secondary gill lamellae, thickness and fusion of primary gill lamellae and Fusion of secondary gill lamellae resulting in reduction of respiratory surface and vacuolization was also observed.[Full Text Article]
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