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Renal regulation of acid-base balance in a freshwater fish

✍ Scribed by Wood, Chris M. ;Caldwell, Forrest H.

Publisher: John Wiley and Sons
Year: 1978
Tongue: English
Weight: 293 KB
Volume: 205
Category: Article
ISSN: 0022-104X
DOI: 10.1002/jez.1402050214

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✦ Synopsis

Abstract

Intra‐arterial injection of a fixed acid load caused only a short‐lived (< 2h) disturbance of blood pH but a long lived (2–3 days) elevation of urinary acid excretion in freshwater trout (Salmo gairdneri). The renal response comprised an immediate increase in acid output in the form of titratable acidity minus bicarbonate, and a slower rise in acid output in the form of ammonia. The total elevation in urinary acid efflux over 72h was such that no other mechanism besides renal function is needed to explain the ultimate compensation of this experimental acid‐base disturbance.

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