THE INFLUENCE OF VARYING OXYGEN TENSIONS UPON THE RATE OF OXYGEN CONSUMPTION IN MARINE FISHES

Abstract

The influence of O tension on the O consumption of 3 types of marine fishes was studied the scup, a very active species, the puffer, a less active one, and the very sluggish toadfish. The more active fishes showed a greater resistance to variations in O tensions than did sluggish fishes. In the case of the toadfish the O consumption was almost directly proportional to the O tension. There appears to be a correlation between the activity of fishes and the influence of the O tension upon their O consumption and the hemoglobin concentration of their blood.