TABLE 1.
Environmental parameters at sampling stations in the Chesapeake Bay
| Date and station | Water temp (°C) | Salinity (ppt) | Dissolved oxygen concn (mg/liter) | Chl a concn (μg/liter) | Ammonia concn (μM) | Nitrite and nitrate concn (μM) | Phosphate concn (μM) | Bacterial abundance (106 cells/ml) | Cyanobacteria (104 cells/ml) | Viral abundance (107 particles/ml) |
|---|---|---|---|---|---|---|---|---|---|---|
| Sept. 2002 | ||||||||||
| 908 | 23.3 | 15.5 | 6.85 | 11.1 | 1.23 | 7.96 | 1.36 | 6.42 ± 0.41a | 23.0 ± 6.7 | 3.78 ± 0.73 |
| 818 | 23.9 | 19.4 | 6.71 | 6.9 | 0.79 | 4.27 | 0.46 | 4.96 ± 0.18 | 28.6 ± 6.2 | 5.38 ± 0.95 |
| 707 | 24.2 | 27 | 6.45 | 3.4 | 0.95 | 1.37 | 0.36 | 4.11 ± 0.2 | 36.3 ± 7.8 | 5.21 ± 0.94 |
| Mar. 2003 | ||||||||||
| 908 | 1.2 | 10 | 14.07 | 41.6 | 1.15 | 42 | 0.58 | 1.24 ± 0.51 | 0.09 ± 0.02 | 0.98 ± 0.25 |
| 818 | 1.8 | 15.8 | 12.08 | 22.5 | 0.59 | 17.6 | 0.48 | 0.57 ± 0.2 | 0.088 ± 0.01 | 0.81 ± 0.14 |
| 707 | 4.4 | 23 | 11.93 | 14.9 | 2.83 | 0.33 | 0.45 ± 0.17 | 0.11 ± 0.03 | 0.64 ± 0.1 |
a
Mean ± standard deviation.