Table 2. Sediment physicochemical properties from the five study sites.
| pH | Redox (mV) | Ammonia (mg · kg−1 dry weight) | TOC | TRP (mg · kg−1 dry weight) | TN (g · 100 g−1 dry weight) | Sal (ppt) | |
|---|---|---|---|---|---|---|---|
| Humber Drain | 7.87 | 145 | 2.9 | 2.50 | 1,160 | 0.12 | 29.6 |
| Humber Estuary | 7.84 | 228.5 | 4.4 | 0.36 | 360 | 0.05 | 29.6 |
| Old Tutaekuri Riverbed | 7.77 | 109.0 | 22.0 | 0.15 | 340 | <0.05 | 29.6 |
| Old Tutaekuri Estuary | 7.87 | 171.4 | 9.0 | 1.06 | 390 | 0.11 | 29.6 |
| Waitangi Estuary | 7.99 | 126.0 | 5.7 | 1.45 | 650 | 0.21 | 29.6 |
Notes:
Values for pH and redox are the average between results from beginning and end of test.
TOC, Total Organic Carbon; TRP, Total Recoverable Phosphorus; TN, Total Nitrogen; Sal, Salinity.