抄録
Two cyprinid fish Tribolodon hakonensis and Squalidus gracilis showed gradual decrease of oxygen consumption at oxygen saturations less than 85.0±2.2% (4.78±0.14ml/l in oxygen con-centration) and 67.1±1.4% (3.81±0.09ml/l), surfacing at 17.3±1.3% (0.97±0.07ml/l) and 15.9±1.8% (0.91±0.10ml/l), and asphyxia at 14.0±1.2% (0.78±0.07ml/l) and 11.2±1.8% (0.63±0.10ml/l), respectively. Both fish avoided hypoxic water less than 40% in oxygen saturation.
