Effects of detergent on behaviour, mortality and intestine of Channa punctatus (Bloch, 1793)

The detergents are household chemical cleaning compound used in wide range of our daily life for diverse purposes. Wheel is a common detergent produced and largely Bangladesh. Some the constituents show high biological activity has tendency to accumulate organisms, making adverse effects possible even at very low level exposure. freshwater fish like Channa punctatus (Bloch, 1793) highly sensitive wheel powder. average mortality each concentration was taken determine by plotting graph, taking time on X- axis Y-axis. According graphical plots 100% values powder 3 hours 5gm/L. In this fishes abnormal behaviour, quick movement histological slide shows decrease amount abdomen villi. demonstrated various behaviour other concentrations also.