Effects of saline acclimation on plasma electrolytes, urea excretion, and hepatic urea biosynthesis in a freshwater stingray, Potamotrygon sp. garman, 1877

1. 1. Freshwater stingrays, Potamotrygon sp., were slowly acclimated to 40% sea water. 2. 2. Saline acclimation had no significant effect on the rate of urea biosynthesis. 3. 3. Rates of urea excretion were low and did not differ significantly in freshwater and saline acclimated rays. Total ammonia-...

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Veröffentlicht in:	Comparative biochemistry and physiology. A, Comparative physiology Comparative physiology, 1977, Vol.56 (1), p.87-93
Hauptverfasser:	Gerst, Jeffery W, Thorson, Thomas B
Format:	Artikel
Sprache:	eng
Schlagworte:	Acclimatization Ammonia - urine Animals Argininosuccinate Lyase - metabolism Argininosuccinate Synthase - metabolism Chlorides - blood Fishes - physiology Kidney Glomerulus - cytology Liver - metabolism Seawater Sodium - blood Sodium Chloride - pharmacology Thiourea - metabolism Urea - metabolism
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