Diurnal variations in plasma composition
| . | Protein (g l-1) . | Total Ca (mmol l-1) . | Total CO2 (mmol l-1) . | Measured pH . | Calculated PCO2 (mmHg) . |
|---|---|---|---|---|---|
| Day | 30.7±1.92 (20) | 2.3±0.04 (20) | 13.5±0.48 (10) | 7.56±0.240 (20) | 4.2±0.31 (8) |
| Night | 34.9±0.97 (20) | 2.5±0.04 (20) | 16.4±0.74 (11) | 7.52±0.280 (20) | 5.5±0.50 (8) |
| P values | 0.0400 | 0.0054 | 0.0040 | 0.5220 | 0.0426 |
| . | Protein (g l-1) . | Total Ca (mmol l-1) . | Total CO2 (mmol l-1) . | Measured pH . | Calculated PCO2 (mmHg) . |
|---|---|---|---|---|---|
| Day | 30.7±1.92 (20) | 2.3±0.04 (20) | 13.5±0.48 (10) | 7.56±0.240 (20) | 4.2±0.31 (8) |
| Night | 34.9±0.97 (20) | 2.5±0.04 (20) | 16.4±0.74 (11) | 7.52±0.280 (20) | 5.5±0.50 (8) |
| P values | 0.0400 | 0.0054 | 0.0040 | 0.5220 | 0.0426 |
Values are means ± S.E.M. (number of fish)
Differences between day and night were considered significant at P≤0.05