translate English to French: MO2 was higher in Cu-exposed fish at any chosen speed compared with control Cu-exposed trout, which decreased activity (mean speed) by at least 75%, spent more time at lower speeds, and lost circadian periodicity in these parameters compared with controls.
Par comparaison aux poissons témoins, les poissons exposés au Cu diminuent leur activité (vitesse de nage) d'au moins 75 %, ils passent plus de temps aux vitesses basses et ils perdent la périodicité circadienne de ces activités.