PMID: 37623May 1, 1979

Effect of different concentrations of HCO3- and CO2 in aquarium water on metabolism in the Cyprinus carpio L. organism

Ukrainskiĭ biokhimicheskiĭ zhurnal
N A ZakharenkoM F Gulyĭ


The level of pCO2 and bicarbonates in blood and tissues of Cyprinus carpio L. increases with concentration of carbonic acid (HCO3- and pCO2), the other indices of the hydrochemical composition being constant. The value of blood pH is unchanged. In fish with a higher content of carbonic acid in blood the amount of lactate, pyruvate, oxaloacetate, malate, citrate, alpha-ketoglutarate, ammonia, glutamin, free amino acids, total and residual nitrogen rises. Simultaneously the content of urea increases in kidneys, but decrease in gills, whereas in blood and live it does not differ from the corresponding indices of fishes from the control group.

Related Concepts

Metabolic Process, Cellular
Amino Acids, I.V. solution additive
Alpha Ketoglutarate
Pyruvate Measurement
Citrate Measurement
Carbonic Acid Ions

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