Table 2.

Distribution of FLBa and unlabeled groundwater bacteria among operationally defined size classes in flagellate grazing experiments

Size class (μm)Bacterial abundance (105/ml)FLB abundance
UnlabeledLabeledUnlabeled + labeled% of totalb% of specific size classc
0.1–0.54.91.05.9617
0.5–0.83.00.93.9523
0.8–1.54.90.55.439
>1.51.40.31.7216
All size classes14.22.716.91616
  • a Labeling of bacteria was done with DATF.

  • b Total bacterial abundance was 1.7 × 106 ml−1 (standard error = 1.5 × 105 ml−1).

  • c Percent of specific size class = [(abundance of FLB in given size class)/(abundance of unlabeled bacteria + abundance of FLB in same size class)] × 100.