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Figure 6


Fig. 6. Decline in VE (expressed as % of inspired volume) as a function of breath-holding duration (BHD) in O. lacepedii during air breathing. Regression equation: VE=–0.60BHD+100.17; r2=0.88, P<0.001). VE was calculated only from fish that retained the full amount of air in the buccal cavity until expiration (see Fig. 2A). Different symbols represent individual fish (N=8).