Table 1.

Number of microorganisms present at the sampling sites determined by direct counts and CFU

SiteNo. of cells/ml (103) determined by:
Direct counta, bPlate count (VNSS)cMPN
Station 1310 ± 100.5 ± 0.063.324
Station 2550 ± 219.5 ± 0.192110
  • a Results are shown as means and standard errors.

  • b DAPI staining was used.

  • c Agar (1.5%) and liquid VNSS media were used for plate counts and MPN determinations, respectively. Bacterial numbers were determined after 1 week incubation.

  • d Filtered and autoclaved seawater. Bacterial numbers were determined after a 1-month incubation.