Fig. 12. White muscle PCr (A), pH_i (B), ATP (C) and lactate (D) levels from carp at exhaustion (time zero) and for up to 8 h recovery. Phosphocreatine levels are normalized to the sum of PCr and P_i. PCr, ATP and lactate levels are expressed relative to normoxic controls. Each bar represents mean ± 1 s.d. Significant differences (P<0.05) between resting/normoxic fish and post-exercise recovery fish are indicated by an asterisk. N=3 for each point.