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Fig. 7. Tissue pH (pHi) in muscle tissue of different A.
opercularis experimental groups. A0–A4 smaller individuals [open
circles, N=8–16, shell height 50.34±4.085 mm (mean
± s.d.)], B0–B4: bigger individuals [filled circles,
N=9–18; shell height 68.84±2.91 mm (mean ±
s.d.)]. Groups with the same letter (smaller individuals=small letters, bigger
individuals=capital letters) are significantly different from each other
(P<0.001). When more than two groups have the same letter, the
group marked with an asterisk is significantly different from the other two
groups.