...-base gill ion transfer From hours 1 to 4, a shift in the mode of ammonia and H + transfer is apparent. During this period, the net H + loss was driven almost completely by the NH 4 + (or NH 3 + H + ) efflux (the net ΔHCO 3 ” was near 0). 1·5 mmol kg −1 (cumulative total, 40%) of H...

... ammonia excretion ion transfer red cell pH Strenuous exercise in fish often results in an extracellular acidosis of metabolic origin ( Holeton, Neumann & Heisler, 1983 ; Turner, Wood & Clark, 1983 ). Recent studies on rainbow trout have shown that red cell pH is regulated at a constant...

... . Respir. Physiol . 46 , 177 – 192 . 10.1016/0034-5687(81)90099-2 Claiborne , J. B. & Heisler , N. ( 1986 ). Acid-base regulation and ion transfers in the carp (Cyprinus carpio) : pH compensation during graded long- and short-term environmental hypercapnia and the effect...

...J. B. Claiborne; Norbert Heisler ABSTRACT Acid-base balance and ion transfers were studied in the carp, Cyprinus carpio L., during and after 48 h of exposure to environmental hypercapnia ( Torr). Plasma pH, [HCO 3 − ], and net transfers of HCO 3 − , NH 4 + , Cl − and Na + between the fish...

..., University of Acadia, Wolfville, Nova Scotia, Canada. † Deceased. 11 1 1983 13 4 1983 © 1983 by Company of Biologists 1983 Hypercapnia ion transfer extracellular pH fish. The effect of hypercapnia on the acid-base status of fish has been studied in a number...

... acid, is removed from the organism and thus represents an effective regulatory mechanism for the defence of the internal milieu in fish. * Deceased. 03 06 1982 11 10 1982 © 1983 by Company of Biologists 1983 Acid-base regulation ion transfer muscular activity fish...