Fig. 6. Recovery of maximum cardiac output in 10°C in situ cod
(Gadus morhua) hearts exposed to oxygenated perfusate only (control),
5 min or 15 min of hypoxia (PO2=510
mmHg), or 5 min hypoxia 20 min prior to 15 min of hypoxia (preconditioning).
Values are means ± S.E.M.
(N=89). Dissimilar letters indicate a significant difference
at P<0.05 as determined by one-way ANOVA (A. G. Genge and A. K.
Gamperl, unpublished).