TABLE 3.

Swimming velocities (u), diffusivities (D), and fractional detachment rates (δ) estimated from still-water colonization rates of 10 bacterial strainsa

StrainU (μm s−1) ± SED (cm2 s−1) ± SEδ (s−1) ± SENo. of expt
HP1(6.1 ± 0.3) × 10−6(1.6 ± 0.1) × 10−42
HP411 ± 215 × 10−61.2 × 10−41
HP53.3 × 10−61.7 × 10−41
HP11(13 ± 8) × 10−6(1.3 ± 0.4) × 10−410
HP1515 ± 69.7 × 10−61.4 × 10−41
HP253
HP33(21 ± 14) × 10−6(0.9 ± 0.7) × 10−42
HP39(25 ± 5.5) × 10−6(0.7 ± 0.3) × 10−44
HP431
HP4614 × 10−61.1 × 10−41
  • a Only experiments with unenriched spheres.