TABLE 3.
Pearson correlation coefficients between potential nitrification rates and AOA amoA and β-AOB amoA gene abundance levels for all data combined, by site and by sampling date
| Comparison and site or date |
r (P) fora: |
||
|---|---|---|---|
| Rates vs AOA | Rates vs β-AOB | AOA vs β-AOB | |
| All samples | 0.08 (0.71) | 0.06 (0.79) | 0.89 (<0.0001) |
| By site | |||
| SAS | −0.38 (0.24) | −0.27 (0.42) | 0.52 (0.10) |
| SAT | 0.60 (0.05) | 0.60 (0.05) | 0.95 (<0.0001) |
| SP | 0.12 (0.72) | 0.27 (0.43) | 0.93 (<0.0001) |
| By mo | |||
| March | 0.77 (0.01) | ||
| April | −0.38 (0.24) | −0.27 (0.42) | 0.52 (0.10) |
| June | 0.18 (0.63) | 0.14 (0.71) | 0.84 (0.005) |
| July | −0.51 (0.16) | −0.50 (0.17) | 0.72 (0.03) |
| October | 0.74 (0.02) | 0.79 (0.01) | 0.94 (0.0002) |
a
Values reported are correlation coefficients (r) followed by the P value in parentheses (correlations that were considered significant are indicated in bold) for the indicated comparison. No nitrification rates (“rates”) were measured in March.