Variable | Intact fin | Reduced fin | F value (d.f.=1,3) | P value |
---|---|---|---|---|
Distance traveled (cm) | 40.3±1.4 | 40.5±0.9 | 0 | 0.98 |
Duration of trial (s) | 0.91±0.05 | 0.93±0.08 | 0.1 | 0.93 |
Duration of initial P (%) | 61.8±1.5 | 60.4±2.6 | 0.9 | 0.41 |
Duration of final B (%) | 29.1±2.5 | 29.3±2.7 | 0 | 0.85 |
V_{avg} (cm s^{-1}) | 45.1±2.0 | 46.1±2.3 | 0.2 | 0.72 |
V_{max} (cm s^{-1}) | 70.9±3.5 | 73.7±3.2 | 0.2 | 0.66 |
Initial V_{max} (cm s^{-1}) | 46.3±3.9 | 51.8±4.9 | 1.0 | 0.39 |
Accel_{max} (cm s^{-2}) | 721±77 | 625±72 | 0.6 | 0.51 |
Decel_{max} (cm s^{-2}) | -479±44 | -546±82 | 0.7 | 0.46 |
Decel_{MJP} (cm s^{-2}) | -295±48 | -310±53 | 0.2 | 0.72 |
V_{MJP} (cm s^{-1}) | 21.9±1.7 | 23.0±1.8 | 0.6 | 0.51 |
Time of initial V_{max} (%) | 17.2±1.6 | 23.4±3.6 | 1.6 | 0.29 |
Time of V_{max} (%) | 44.6±2.7 | 47.3±3.6 | 0.1 | 0.73 |
Time of MJP (%) | 93.5±1.0 | 95.3±0.6 | 4.2 | 0.13 |
Time of min pect. angle (%) | 98.1±1.0 | 99.7±0.1 | 1.5 | 0.31 |
Time of min pelv. angle (%) | 92.6±1.6 | 93.3±1.1 | 0.2 | 0.66 |
Time of max med. angle (%) | 92.9±2.0 | 93.1±1.8 | 0 | 0.99 |
Values are means ± s.e.m; N=19 for intact and N=18 for reduced pectoral fin area. The F values from two-way ANOVAs, which were performed separately on each variable.
P, propulsion only; B, braking only; V_{max}, maximum velocity; V_{avg}, average velocity; V_{MJP}, velocity at max jaw protrusion; MJP, maximum jaw protrusion; Accel_{max}, maximum acceleration; Decel_{max}, maximum deceleration; Decel_{MJP}, deceleration at maximum jaw protrusion; pect., pectoral fin; pelv., pelvic fin; med., median fin.