Swimming performance of 12 Schizothoracinae species from five rivers

Abstract

A series of stepped velocity tests were carried out in a Brett‐type swimming respirometer and the overall range in swimming performance for 12 Schizothoracinae species was measured. The relative critical swimming speed U crit and burst speed U burst decreased with body length, while absolute U crit and U burst increased with body length. U crit increased with temperature up to approximately 15 ° C and then decreased. Species with a high U crit also displayed a higher U burst .