Year: 2018, Issue: December
Chronic toxicity of nickel and chromium on oxygen consumption in a freshwater fish, Anabas testudineus (Bloch).
Dina Nath Pandit, Priyanka and Moti Lal Gupta
Anabas testudienus, Nickel, Chromium, Oxygen consumption, Chronic Toxicity.
The effect of chronic toxicity after 10th days, 20th days and 30th days of three sub-lethal doses of nickel and chromium on bimodal oxygen consumption was determined using closed glass respirometer in Anabas testudineus. The mean aerial oxygen consumption increased from 82.8-88.27 and 83.02-94.65 ml O /kg/hr in nickel and chromium 2 treated fish. The aquatic and total oxygen consumption decreased from 77.49-45.58 and 160.29-135.05 ml O /kg/hr in 2 nickel intoxicated fish. On the other hand, in chromium treated fish, the decrease in aquatic and total oxygen consumption was respectively from 80.98-37.61 and 159.85-132.26 ml O /kg/hr. The work indicates that nickel toxicity has 2 less effect to this fish in comparison to chromium.