Etude comparative des besoins minima en oxygène chez différentes espèces de Téléostéens

Summary The lowest levels of oxygen tension tolerated by 3 Teleost fishes were determined.Aequidens latifrons is able to survive at very low O₂ tensions which are lethal for the other species. This particularity can be correlated with ecological and physiological characters of this species.     

Relation entre l'activité de la glande thyroÏde et la consommation d'oxygène chez les Téléostéens,Cichlidés

Summary The study of the relationship between the activity of the thyroid of Cichlid fishes and oxygen consumption has given the following results: The stimulation by thyroxine causes a significant increase of oxygen consumption (+35%) after a long treatment. This increase is not immediate; a latent period is observed till the gland is in repose. The antithyroid rapidly decreases the oxygen consumption (–24%). But this chemical blocking is not stable.