Sebert P.,Ueb University Of Brest |
Mortelette H.,Ueb University Of Brest |
Nicolas J.,Ueb University Of Brest |
Amerand A.,Ueb University Of Brest |
And 2 more authors.
Respiratory Physiology and Neurobiology | Year: 2011
In order to have a general view of metabolic requirements during swimming, in vitro aerobic and anaerobic fluxes were measured in red and white muscles from silver eels and yellow eels which differ in activity levels and nutritional states. These measurements were performed in control eels and after a 4 day swimming session (70% U crit in yellow eels, 80% U crit in silver eels). A swimming session significantly increases U crit from 12% to 18%, depending on the stage, with a significantly higher in vitro energy cost during the yellow stage at the muscle level. In vitro, the swimming session brings about a gain in anaerobic capacities rather than in aerobic ones. Some in vivo hypotheses are proposed. © 2011 Elsevier B.V. Source