The effects of burst swimming on aerobic swimming in chinook salmon (Oncorhynchus tshawytscha)†

Abstract
Burst swimming in fish results in a marked metabolic acidosis. Chinook salmon (Oncorhynchus tshawytscha) blood was shown to have a marked Root shift, such that burst swimming and the subsequent metabolic acidosis should impair oxygen delivery to the tissues and, therefore, aerobic swimming capacity. Burst swimming was found to have no effect on aerobic swimming capacity in Chinook salmon and it is concluded that any effects on aerobic swimming, of the induced metabolic acidosis following burst swimming, was offset by the release of catecholamines.