...Nicklas Wallbom; Lucas A. Zena; Tristan J. McArley; Andreas Ekström; Michael Axelsson; Albin Gräns; Erik Sandblom; Daniel Morgenroth ABSTRACT Salmonid ventricles are composed of spongy and compact myocardium, the latter being perfused via a coronary circulation. Rainbow trout ( Oncorhynchus mykiss...

... for oxygen. Hypoxic bradycardia could also reduce cardiac oxygen demand by reducing cardiac d P /d t and cardiac power output, something that could be masked at cold temperature because of a reduced myocardial work load. While the presence of a coronary circulation in certain fishes decreases the reliance...

...-mail: [email protected] ) 22 7 2003 © The Company of Biologists Limited 2003 2003 heart trout Oncorhynchus mykiss coronary circulation volume loading mechanical efficiency The majority of teleost fish rely on venous blood for oxygen and nutrient supply to the heart...

...A. P. Farrell ABSTRACT A preparation was developed to perfuse the coronary circulation in working hearts from rainbow trout ( Salmo gairdneri Richardson). The preparation was used to examine pressure–flow relationships for the coronary circulation as the heart generated physiological...