Relative tolerance against pollutant (Muriate of potash) in certain air breathing fishes

Abstract

The quality of human life is directly/indirectly related with the environment around us. Deterioration in the health of any of these components can have serious effects on the continuity of life. Fishes as an important aquatic fauna, serves as an important source of food item. Paddy-cum-fish culture is in great practice in India, where various air-breathing fishes are cultured besides paddy. Spread of agrochemicals in these paddy fields expose such fishes and increase the mortality rate of fishes affecting the economy of our country. Long term exposure of contaminants might increase tolerance in such species. In our experiment, the role of muriate of potash has more tolerance level in Channa punctatus than Anabas testudineus. So, it is preferable to use such tolerant varieties in these paddy-cum-fish culture and strengthen our economy.