Arterial Po2, acid-base status, and red cell nucleoside triphosphates in rainbow trout transferred from fresh water to 20‰ sea water |
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| Authors: | B. K. Larsen F. B. Jensen |
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| Affiliation: | Institute of Biology, Odense University, DK-5230 Odense M, Denmark |
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| Abstract: | Transfer of rainbow trout from fresh water to 20‰ sea water decreased dorsal aortic Po2 from 90 to 60 mmHg within 1 h. Arterial Po2 was depressed for 24 h before it returned to control values. The internal hypoxia rapidly reduced the red cell nucleoside triphosphate content, suggesting prompt regulation of blood O2 affinity. The extracellular acid-base status changed towards a small mixed metabolic and respiratory acidosis. |
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| Keywords: | rainbow trout seawater exposure oxygen transport red cell nucleoside triphosphates |
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