Sodium- and potassium-activated adenosine triphosphatase in kidneys of Fundulus heteroclitus adapted to fresh and salt water.


It is well known that glomerular teleosts excrete a profuse dilute urine in fresh water and a scanty urine isotonic to plasma in seawater.' The striking changes in renal function that ensue when euryhaline fish are transferred from seawater to freshwater or the reverse have been studied in five species: the European eel, Anguilla anguilla,2 the Japanese eel… (More)

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