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. 2007 Sep 7;73(21):6776–6789. doi: 10.1128/AEM.00541-07

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.