Fig. 3. Rate of oxygen consumption
(
O2) at 18
°C (blue plane and symbols) and 24 °C (green plane and symbols) as a
function of both swimming speed and fish mass for all individuals studied. The
maximum and minimum values of speed and mass at 18 and 24 °C were used to
solve the multiple regression equations for
O2
(Table 2) for the four corners
of each plane. At a given speed and mass,
O2 is
significantly higher at 24 than at 18 °C, and the rate of increase in
O2 with speed is
greater at 24 °C (ANCOVA, P<0.0001).
