The functional significance of adrenergic pH regulation in fish erythrocytes

Abstract
Experiments were conducted in vitro to determine the presence or absence of an adrenergic pH effect in the erythrocytes of Squalus suckleyi, Raja binoculata, and Oncorhynchus tshawytscha. Adrenergic stimulation significantly increased the erythrocyte pH of Oncorhynchus tshawytscha, but did not significantly affect the erythrocyte pH of Squalus suckleyi or Raja binoculata. The results support the view that the functional significance of adrenergic pH regulation in fish erythrocytes is to offset the reduction in blood oxygen carrying capacity caused by the Root effect.

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