Fig. 6. Comparison of metabolic rates [J h-1 g-1 dry mass] of
C. fluminea measured by direct (heat dissipation) and indirect (rate
of oxygen consumption) calorimetry. Integration of periods with open (A) and
closed (B) valves in artificial freshwater at 15°C. Heat dissipation
(
; dark grey bars), oxygen consumption
(
O2; light grey
bars). Each pair of bars (means ± S.D.) represents one of
the 18 specimens used for calorespirometry, with open (A) and closed (B)
valves. The oxycalorific equivalent = 450 kJ mol-1
O2.