the concentrations of plasma catecholamines , epinephrine and norepinephrine , were monitored in rainbow trout ( salmo gairdneri ) after acute ( 30 min ) exposure to various levels of external hypercapnia ( water pco2 ( pwco2 ) = 0-11.3 torr ) under normoxic ( water po2 ( pwo2 ) = 153 +/- 1.1 torr ) or hyperoxic ( pwo2 = 653 +/- 27.0 torr ) conditions .
C0014563
epinephrine
C0028351
norepinephrine