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Table 2.

Plasma ion concentrations in eels exposed for at least 6 weeks to water CO2 partial pressures (PwCO2) of approx. 0.8 mmHg (ambient control), 15±1 mmHg, 30±1 mmHg or 45±1 mmHg

PwCO2 (mmHg)[Cl-] (mequiv l-1)[Na+] (mequiv l-1)[Ca2+] (mequiv l-1)
Approx. 0.8 118±7a 140±7a 6.9±0.5a 
15±1 90±5a,b 116±5a 7.1±2.5a 
30±1 84±13a,b 120±8a 6.6±0.4a 
45±1 71±10b 116±7a 9.2±1.0a 
PwCO2 (mmHg)[Cl-] (mequiv l-1)[Na+] (mequiv l-1)[Ca2+] (mequiv l-1)
Approx. 0.8 118±7a 140±7a 6.9±0.5a 
15±1 90±5a,b 116±5a 7.1±2.5a 
30±1 84±13a,b 120±8a 6.6±0.4a 
45±1 71±10b 116±7a 9.2±1.0a 

1 mmHg equals=0.01316 kPa.

Values are mean ± 1 S.E.M., N=5-7 determinations.

A common superscript indicates no significant difference between groups(P>0.05).

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