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Fig. 5. Changes in the (A,B) phosphagen/aphosphagen ratio
(RPLA) and (C,D) ATP levels in foot muscle tissue of
Littorina saxatilis during temperature incubations. High critical
temperatures (Tc IIc and Tc
IIw in cold- and warm-acclimated animals, respectively) are
indicated by arrows. These are the temperatures where an onset of anaerobiosis
occurred as determined by significant succinate accumulation compared with the
respective control level. Open symbols denote values that are significantly
different from the respective controls (P<0.05). N=5-10
for each data point.