EN
The present study was carried out to find out the changes induced by one of the stress conditions such as acidic medium exposure on some haematological and blood biochemical, parameters in the fresh water fish, Notopterus notopterus. Increase in the haemoglobin and haematocrite indicate haemoconcentration in the fish blood. Glucose, alkaline phosphatase, sodium and calcium, protein, BUN, creatinine, triglycerides, enzymes such as SGOT and SGPT were decreased in the fish N.notopterus exposed to acidic condition. The changes in the environmental factors such as acidic condition cause stress to the fish which may bring disturbance in the blood parameters effecting the survival of fish.