Fig. 1. Concentration versus time plots of (A) phosphocreatine (PCr), (B) inorganic phosphate (Pi), (C) adenosine triphosphate (ATP), (D) phosphomonoesters (PME) and (F) lactate (La) at the experimental temperature of 15°C. Concentration levels are expressed in µmol g^-1 muscle wet mass. (E) Intracellular pH (pHi) versus time plots are also shown. All data corresponding to the different experimental extracellular pH (black, 7.9; white, 7.3; grey, 7.0) are shown. Time zero corresponds to the beginning of anaerobiosis (arbitrarily set when the PCr peak started decreasing sharply).

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