... morphological (mass) and physiological changes. During normoxic incubation embryonic mass, liver mass and heart mass increased throughout the period of study, while yolk mass fell. Chronic hypoxia(10%O 2 ) resulted in a reduced embryonic mass at 80% and 90% of incubation. This reduction in embryonic mass...

...J. A. W. Stecyk; A. P. Farrell SUMMARY In vivo measurements of the cardiovascular responses of anoxia-tolerant teleosts to severe prolonged hypoxia are limited. Here, we report the first direct measurements of cardiac output ( Q ), heart rate ( f H ) and stroke volume during prolonged severe...