Fig. 5. Glycogen concentration in A. opercularis muscle tissue of
unstressed animals (group 0) and animals that underwent complete run 1 and run
2 (group 4). White bars: smaller individuals [A0, A4: N=8, 11; shell
height 50.97±4.473 mm (mean ± s.d.)]; grey bars: bigger
individuals (B0, B4; N=11, 15; shell height 69.30±2.611 mm).
Bars with the same letter are significantly different from each other
(Student's t-test, P<0.05).