Thomas S, Poupin J, Lykkeboe G, Johansen K
Respir Physiol. 1987 Apr;68(1):85-97. doi: 10.1016/0034-5687(87)90079-x.
A swim tunnel respirometer and an extracorporeal blood circulation technique allowed continuous collection of data from exercising fish below and near their critical speed. Swimming at speeds below maximum showed no changes in plasma Na+, Cl- and lactate concentrations but increased levels of blood hemoglobin and plasma K+. PaO2 and PaCO2 showed an exponential decrease and increase respectively and related to swimming speed. Increased swimming speed changed the acid-base status toward a mixed respiratory and metabolic acidosis. Upon reaching maximum speed sudden and large increases in plasma Na+, K+ and lactate concentrations occurred associated with a large metabolic acidosis.
一个游泳隧道呼吸计和体外血液循环技术能够持续收集低于和接近其临界速度运动的鱼类的数据。以低于最大速度游泳时，血浆中Na⁺、Cl⁻和乳酸盐浓度没有变化，但血液血红蛋白和血浆K⁺水平升高。动脉血氧分压（PaO₂）和动脉血二氧化碳分压（PaCO₂）分别呈指数下降和上升，并与游泳速度相关。游泳速度增加使酸碱状态向混合性呼吸性和代谢性酸中毒转变。达到最大速度时，血浆Na⁺、K⁺和乳酸盐浓度突然大幅增加，并伴有严重的代谢性酸中毒。
