TABLE 2.

Water samples collected from three sampling stationsa

StationDepth (m)Heterotrophic cell abundance (106 cells ml−1)% HNA cells% CTC-positive cellsNo. of samples sorted
DiversityLeucine incorporation
Shelf2-80.9-1.4162-901.4-4.025
11-250.6-2.1564-862.1-4.225
32-500.48-0.8663-821.2-5.125
Slope3-100.93-1.5654-751.5-6.123
17-301.21-1.8543-571.9-4.423
40-1000.35-1.1645-701.7-10.323
Basin20-501.18-2.4742-451.0-3.323
100-1500.32-0.4450-711.8-6.523
300-5000.07-0.2453-701.6-24.425
  • a The table indicates the range of abundances of heterotrophic cells and the percentage of heterotrophic cells that were HNA or CTC-positive cells. Different numbers of samples were sorted to determine (i) the diversity of the HNA cells, LNA cells, and CTC-positive cells and (ii) cell-specific leucine incorporation rates of total cells, HNA cells, LNA cells, and CTC-positive cells.