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Fig. 5. Relationship between morphological potential and maximum pressure magnitude
measured from individual fish. Morphological potential, as described in the
text, significantly accounted for variation in pressure among the individuals
used in this study (r2=0.71). The solid line depicts this
linear regression. The muscle stress estimated from this regression is 68.5
kPa. The bold, broken line indicates the theoretical maximum performance
predicted by the model (200 kPa, assuming an intercept of 11.8). The lighter,
broken lines indicate reasonable predictions of normalized muscle stress
during suction feeding (Pm) of 50 and 75 kPa, based on
in vivo muscle dynamics.