Oxygen uptake and haemocyanin oxygen affinity of Potamonautes warren Caiman after exercise

Abstract

The MO2 values for exhaustively exercised crabs in water medium or air medium are nearly twice the values found for pre-exercised crabs. The l-lactate concentration in the haemolymph increases from 0,75 ± 0,37mmol to 9,63 ± 2,1 mmol in P. warreni after air exercise, a value similar to those for other terrestrial and aquatic crabs. The same increase in the l-lactate concentration was found for water-exercised crabs.