TABLE 1.
Environmental parameters at sampling sites throughout period of study (mean ± SD).
| Sampling sites | C1 3 m | C3 3 m | C5 3 m | C7 3 m | C9 3 m | C7 50–100 m | C9 50–100 m | C9 200 m | C9 1000 m |
| Salinity (‰) | 33.21 ± 1.28 | 32.93 ± 1.52 | 33.58 ± 0.64 | 33.77 ± 0.34 | 33.92 ± 0.35 | 34.43 ± 0.22 | 34.37 ± 0.24 | 34.52 ± 0.01 | 34.56 ± 0.04 |
| Temperature (°C) | 25.06 ± 2.00 | 26.90 ± 3.29 | 27.22 ± 2.85 | 27.32 ± 2.02 | 27.36 ± 2.16 | 21.34 ± 3.45 | 23.54 ± 2.39 | 15.22 ± 1.17 | 4.36 ± 0.44 |
| DO (mg/L) | 6.83 ± 0.28 | 6.67 ± 0.61 | 6.50 ± 0.59 | 6.23 ± 0.21 | 6.63 ± 0.28 | 5.79 ± 0.53 | 5.70 ± 0.51 | 3.92 ± 0.65 | 3.23 ± 0.13 |
| Pressure (db) | 3.69 ± 1.16 | 3.52 ± 1.01 | 3.52 ± 1.01 | 3.69 ± 1.16 | 3.03 ± 0.02 | 79.62 ± 29.88 | 72.32 ± 24.94 | 201.30 ± 0.11 | 1008.60 ± 0.55 |
| pH | 8.46 ± 0.13 | 8.39 ± 0.17 | 8.39 ± 0.17 | 8.47 ± 0.12 | 8.33 ± 0.08 | 8.34 ± 0.15 | 8.27 ± 0.07 | 8.13 ± 0.06 | 7.86 ± 0.06 |
| Turbidity (FTU) | 1.33 ± 1.26 | 0.80 ± 0.29 | 0.61 ± 0.00 | 0.50 ± 0.10 | 0.50 ± 0.04 | 0.58 ± 0.04 | 0.53 ± 0.08 | 0.26 ± 0.10 | 0.61 ± 0.00 |
| Chl a (μg/L) | 1.51 ± 0.99 | 0.34 ± 0.20 | 0.13 ± 0.02 | 0.13 ± 0.09 | 0.11 ± 0.06 | 0.24 ± 0.19 | 0.35 ± 0.17 | 0.02 ± 0.04 | 0.00 ± 0.00 |
| Bacteria (104cells/mL) | 136.15 ± 4.95 | 107.44 ± 29.10 | 103.24 ± 38.76 | 91.45 ± 32.76 | 70.96 ± 11.16 | 68.23 ± 37.41 | 54.61 ± 19.62 | 23.65 ± 2.17 | 8.70 ± 3.70 |
| DIN (mg/L) | 0.016 ± 0.003 | 0.010 ± 0.010 | 0.014 ± 0.008 | 0.024 ± 0.019 | 0.016 ± 0.012 | 0.060 ± 0.033 | 0.047 ± 0.041 | 0.158 ± 0.019 | 0.416 ± 0.058 |
| NO2 (mg/L) | 0.002 ± 0.002 | 0.002 ± 0.002 | 0.002 ± 0.002 | 0.001 ± 0.001 | 0.001 ± 0.001 | 0.002 ± 0.001 | 0.003 ± 0.003 | 0.001 ± 0.001 | 0.001 ± 0.001 |
| NO3 (mg/L) | 0.012 ± 0.006 | 0.006 ± 0.010 | 0.008 ± 0.008 | 0.017 ± 0.014 | 0.013 ± 0.011 | 0.055 ± 0.035 | 0.043 ± 0.041 | 0.154 ± 0.016 | 0.409 ± 0.054 |
| NH4 (mg/L) | 0.002 ± 0.003 | 0.003 ± 0.006 | 0.004 ± 0.004 | 0.006 ± 0.005 | 0.002 ± 0.003 | 0.003 ± 0.005 | 0.002 ± 0.002 | 0.002 ± 0.003 | 0.006 ± 0.003 |
| PO4 (mg/L) | 0.003 ± 0.003 | 0.002 ± 0.002 | 0.002 ± 0.002 | 0.003 ± 0.003 | 0.005 ± 0.003 | 0.011 ± 0.006 | 0.010 ± 0.009 | 0.028 ± 0.003 | 0.079 ± 0.007 |
DO and pH were not measured for samples collected in the summer of 2013, and bacteria were not enumerated for samples collected in the spring and summer of 2013.