Changes of Oxygen Consumption in Rose Bitterling, Field Gudgeon, Common Minnow, Dark Chub and Common Carp under Progressive Hypoxia

Abstract

Oxygen consumptions in the rose bitterling, the field gudgeon, the dark chub and the carp under progressive hypoxic condition were kept the same levels as those under normoxic condition, and gradually decreased at below 40, 50, 35 and 15% in oxygen saturation, respectively. But the consumption in the common minnow gradually increased under the hypoxic condition.