Variables measured using closed respirometry
| . | histrio form . | erythrospilus form . | Both forms . |
|---|---|---|---|
| ṀO2 (mg kg-1 h-1) | 259±83 (5) | 237±54 (6) | 247±20 (11) |
| [O2]crit (% of air saturation) | 20.9±5.5 (5) | 16.1±2.4 (6) | 18.3±1.4 (11) |
| [O2] at loss of equilibrium (% of air saturation) | 3.0±0.6 (5) | 2.7±0.6 (6) | 2.8±0.4 (11) |
| Time between [O2]crit and loss of equilibrium (min) | 146±37 (5) | 113±17 (6) | 128±20 (11) |
| ṀO2 in air (mg kg-1 h-1) | 150±39 (5) | 142±38 (6) | 145±11 (11) |
| . | histrio form . | erythrospilus form . | Both forms . |
|---|---|---|---|
| ṀO2 (mg kg-1 h-1) | 259±83 (5) | 237±54 (6) | 247±20 (11) |
| [O2]crit (% of air saturation) | 20.9±5.5 (5) | 16.1±2.4 (6) | 18.3±1.4 (11) |
| [O2] at loss of equilibrium (% of air saturation) | 3.0±0.6 (5) | 2.7±0.6 (6) | 2.8±0.4 (11) |
| Time between [O2]crit and loss of equilibrium (min) | 146±37 (5) | 113±17 (6) | 128±20 (11) |
| ṀO2 in air (mg kg-1 h-1) | 150±39 (5) | 142±38 (6) | 145±11 (11) |
Values are means ± s.e.m. Number of fish is given within parentheses. There were no significant differences between the two forms(Wilcoxon test).