TABLE 2.

Specific growth rates of bacteria belonging to different phylogenetic bacterial groups

Location (date, day/mo/yr)Station (depth, m)Growth rate, day−1 (avg ± SE, n = 10)a
AlphaBetaGammaCF
Otsuchi Bay (22/05/01)A (0)1.71 ± 0.220.60 ± 0.201.61 ± 0.39ND
A (20)0.20 ± 0.02ND0.27 ± 0.070.42 ± 0.05
B (0)1.11 ± 0.360.85 ± 0.571.25 ± 0.94
B (40)1.55 ± 0.441.39 ± 0.641.15 ± 0.252.48 ± 0.91
C (0)0.79 ± 0.161.36 ± 0.170.98 ± 0.29
C (65)0.52 ± 0.081.18 ± 0.24
A (0)1.28 ± 0.273.05 ± 0.430.77 ± 0.45
B (0)1.18 ± 0.201.44 ± 0.351.38 ± 0.46
C (0)2.17 ± 1.60
Sagami Bay (17/07/02)1 (0)3.07 ± 0.824.25 ± 1.193.20 ± 1.91
1 (100)0.63 ± 0.140.56 ± 0.340.29 ± 0.29
Off Kuroshio (18/07/02)4 (0)1.55 ± 0.70
4 (100)0.20 ± 0.14ND
  • a For abbreviations, see Table 1, footnote b. When the increase in cell abundance during the incubation period was less than 20% of initial abundance, the growth rate was judged to be below the detection limit (ND). Dashes indicate that the growth rate could not be calculated because the contribution of the phylogenetic group to total DAPI-positive cells was below the detection limit (1%) for samples collected at the beginning and/or at the end of the incubation.