Table 3. Summary of sampling dates and DNA kinetic parameters estimated from the Rigler bioassay approach.
The r2 values are based on the regression statistics of substrate turnover against the concentration series of non-labeled substrate additions.
| Sampling Date | Vmax (nmol L-1 h-1) | K + Sn (nmol L-1) | (k + Sn) / Vmax (h) | T0 (h) | r2 |
|---|---|---|---|---|---|
| 31/01/12 | 0.028 ± 0.007 | 14.6 ± 3.89 | 521.0 ± 55.2 | 428.9 ± 60.2 | 0.85 |
| 27/02/12 | 0.090 ± 0.01 | 4.95 ± 1.10 | 55.4 ± 11.3 | 67.0 ± 2.62 | 0.97 |
| 13/03/12 | 0.060 ± 0.009 | 5.37 ± 1.10 | 95.3 ± 11.1 | 102.8 ± 23.3 | 0.95 |
| 26/03/12 | 0.18 ± 0.008 | 9.12 ± 0.66 | 57.3 ± 3.1 | 51.6 ± 1.47 | 0.99 |
| 04/04/12 | 0.09 ± 0.007 | 8.87 ± 0.82 | 103.0 ± 5.46 | 101.2 ± 3.07 | 0.98 |
| 23/04/12 | 0.03 ± 0.008 | 9.28 ± 3.14 | 360.3 ± 44.8 | 357.8 ± 49.8 | 0.83 |
| 09/05/12 | 4.47 ± 0.46 | 28.8 ± 3.15 | 6.43 ± 0.25 | 7.03 ± 0.12 | 0.96 |
| 07/06/12 | 0.25 ± 0.01 | 7.19 ± 0.48 | 28.9 ± 1.39 | 27.5 ± 1.75 | 0.99 |
| 25/06/12 | 0.22 ± 0.03 | 7.28 ± 1.30 | 32.6 ± 4.37 | 45.9 ± 0.73 | 0.94 |
| 12/07/12 | 0.53 ± 0.09 | 16.3 ± 3.21 | 30.9 ± 2.78 | 30.1 ± 1.99 | 0.86 |
| 20/08/12 | 0.81 ± 0.12 | 9.93 ± 1.62 | 12.2 ± 0.75 | 12.7 ± 0.45 | 0.77 |
| 11/09/12 | 0.08 ± 0.002 | 6.60 ± 0.21 | 85.2 ± 2.23 | 86.8 ± 10.4 | 0.99 |
| 25/09/12 | 0.01 ± 0.001 | 3.02 ± 0.51 | 275.1 ± 37.3 | 266.4 ± 6.14 | 0.96 |
| 08/10/12 | 0.01 ± 0.001 | 3.68 ± 0.64 | 324.1 ± 49.3 | 284.1 ± 42.1 | 0.98 |
| 22/10/12 | 0.31 ± 0.02 | 16.3 ± 1.18 | 51.9 ± 2.67 | 47.5 ± 2.37 | 0.98 |
| 05/11/12 | 0.09 ± 0.01 | 12.1 ± 1.63 | 130.5 ± 10.7 | 120.0 ± 3.79 | 0.95 |
| 19/11/12 | 0.46 ± 0.07 | 14.8 ± 2.51 | 32.3 ± 2.09 | 30.3 ± 2.64 | 0.91 |
| 12/12/12 | 0.001 ± 0.0001 | 0.90 ± 0.27 | 794.4 ± 224.2 | 889.4 ± 20.4 | 0.99 |