Relationships between Plasma Electrolytes and Survival Rate of Juvenile Walking Catfish (Clarias batrachus Linn.) During Transportation

Abstract

Juvenile walking catfish transported in dilute sodium chloride 0.5% gave the highest survival rate. Addition of 0.5% and 1.0% sodium chloride in water during transportation showed slightly increase in the plasma sodium ions level but the increase was not significantly different from the prestressed level and the control fish. Whereas, the level of plasma chloride ions and potassium ions increased sharply. Addition of salt to the water at the optimal level of 0.5% during transportation reduced the mortality rate of juvenile walking catfish.