... trout heart preparations ( Jensen, 1969 ; Tort et al . 1987 ). The resting cardiac output was achieved at a physiological input pressure. However, the Starling response occurred at pressures above those reported for trout swimming at their critical velocity ( Kiceniuk & Jones, 1977 ; Farrell...

... cardiac output through the Starling response. Heart rate was independent of both these intrinsic mechanisms. The intrinsic mechanical capabilities of the trout heart were greater than those observed previously in less active, benthic teleosts. Physiological concentrations of catecholamines significantly...