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>Acid‐base, fluid and electrolyte metabolism in the elasmobranch. III. oxygen, CO2, bicarbonate and lactate exchange across the gill
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Acid‐base, fluid and electrolyte metabolism in the elasmobranch. III. oxygen, CO2, bicarbonate and lactate exchange across the gill
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机译：Acid‐base, fluid and electrolyte metabolism in the elasmobranch. III. oxygen, CO2, bicarbonate and lactate exchange across the gill
AbstractMethods have been developed which permit measurements of cardiac output and sampling of mixed venous and arterial blood in the elasmobrach,Squalus acanthias. These methods have been utilized to characterize some of the parameters involved in gill gas exchange. A total of 17 animals have been studied with the following results. Cardiac output: 1.49±0.57 1/kg/hr.; V̇o2: 38.3±22.1 ml/kg/hr.; V̇co2: 32.1±19.0 ml/kg/hr.; RER: 0.92±0.17; PaO2: 104±27 mmHg; Pv̄o2: 18±8.8 mmHg; PaCO2: 2.9±0.75 mmHg; Pv̄co2: 4.6±1.1 mmHg; CaO2: 3.8±0.75 vol. %; Cv̄o2: 1.26±0.59 vol. %; pHa: 7.52±0.10 units; Pv̄: 7.42±0.11 units; [HCO3−]a: 3.92± 1.14 meq/1; [HCO3−]v̄: 4.80±1.15 meq/1; [dissolved CO2]a: 0.17± 0.04 mM/1; [dissolved CO2]v̄: 0.24±0.04 mM/1; [lactate−]a: 13.47±7.17 meq/1; [Lactate−]v̄: 13.01±8.18 meq/1. Some of the mechanisms involved in gill ga
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