Table 1.

Kinematic parameters

VariableSymbolValue ± s.e.m.Units
Length L 20.8±0.7*cm
Swimming velocity U 1.374±0.002L s-1
Reynolds number Re 60 000
Tail beat amplitude A 0.0693±0.0005 L
Tail beat frequency f 3.11±0.03Hz
Body wave velocity V 1.878±0.006L s-1
Body wave length0.604±0.006 L
Average tail velocity4A/f0.856±0.006L s-1
Strouhal number St 0.314±0.003
Slip U/V 0.731±0.002
Stride length U/f 0.448±0.005 L
Amplitude growth parameterα2.759±0.009
  • N=118 except where indicated (*N=3; N=2180).