Table 2.
Quantification of Vibrio predatory bacteria detected in natural seawater at four locations in Delaware from October 2011 to March 2012
| Locationa | Date (day-mo-yr) | Temp (°C) | Salinity (ppt) | Mean PFUb |
|---|---|---|---|---|
| Site 1. Cape May-Lewes Ferry Terminal, Lewes, DE | 20-10-2011 | 19.4 | 24.2 | 0.7 |
| 15-11-2011 | 12.8 | 27.9 | 13 | |
| 22-12-2011 | 9.1 | 24.6 | 0 | |
| 19-1-2012 | 8.2 | 28.4 | 0.3 | |
| 12-2-2012 | 6.2 | 26.0 | 0.7 | |
| 8-3-2012 | 9.2 | 29.5 | 0 | |
| Site 2. University of Delaware Marine Lab, Lewes, DE | 20-10-2011 | 19.4 | 25.4 | 1 |
| 15-11-2011 | 12.8 | 26.5 | ND | |
| 22-12-2011 | 8.8 | 24.0 | 4.3 | |
| 19-1-2012 | 7.9 | 28.0 | 0.3 | |
| 12-2-2012 | 6.4 | 26.4 | 1.7 | |
| 8-3-2012 | 8.1 | 29.2 | 0 | |
| Site 3. Oyster Rocks Road, Milton, DE | 20-10-2011 | 19.4 | 24.0 | 1.7 |
| 15-11-2011 | 12.5 | 26.4 | 23.6 | |
| 22-12-2011 | 7.5 | 14.7 | 2 | |
| 19-1-2012 | 7.8 | 27.5 | 0.3 | |
| 12-2-2012 | 6.1 | 25.9 | 5.3 | |
| 8-3-2012 | 9.0 | 28.8 | 0 | |
| Site 4. Scotton Landing, Frederica, DE | 20-10-2011 | 18.9 | 12.6 | 0.3 |
| 15-11-2011 | 12.9 | 11.3 | 0 | |
| 22-12-2011 | 6.5 | 1.8 | 0 | |
| 19-1-2012 | 6.4 | 9.0 | 0.7 | |
| 12-2-2012 | 5.5 | 4.4 | 0.3 | |
| 8-3-2012 | 8.8 | 4.6 | 0 |
a
Location coordinates and descriptions are given in Materials and Methods.
b
The counts are the mean number of PFU of triplicate assays of 7.5 ml of 0.45-μm-filtered seawater per assay. ND, not done.