Sebert P, Soulier P, Barthelemy L, Belaud A, Peyraud C
C R Seances Soc Biol Fil. 1976;170(5):1087-91.
The study of electrocardiogram and opercular movement records, from eels exposed for prolonged periods to hypercarbic water (saturation by the gaseous mixture 2% CO2, 98% air) shows that 1) heart rate is not significantly changed; 2) the duration of spontaneous apnea phases and the magnitude of opercular movements during ventilatory phases are increased under hypercapnic conditions. Because the integrated records of opercular movements only give an arbitrary estimate of changes in ventilation rate, direct measurements of the ventilation volume were performed in order to state the way of the dominant action of CO2. This method allows us to conclude that exogenous hypercapnia significantly decreases the ventilatory rate in eels.
对长时间暴露于高碳酸水中（由2%二氧化碳和98%空气的气体混合物饱和）的鳗鱼的心电图和鳃盖运动记录进行研究，结果表明：1）心率无显著变化；2）在高碳酸血症条件下，自发呼吸暂停阶段的持续时间和通气阶段鳃盖运动的幅度增加。由于鳃盖运动的综合记录只能对通气率的变化进行任意估计，因此进行了通气量的直接测量，以阐明二氧化碳的主要作用方式。该方法使我们能够得出结论，外源性高碳酸血症会显著降低鳗鱼的通气率。
