Table 6. Percentages of substrate (regrouped by chemical classes) utilization for each sampling condition during the two experiments in 2010 and 2011.
| 2010 | 2011 | |||
|---|---|---|---|---|
| depth | 0.5 m | 4 m | 0.5 m | 4 m |
| conditions | aerobic | anaerobic | aerobic | anaerobic |
| Amines | 0.3 | 8.7 | 1.1 | 6.2 |
| Amino-acids | 32.0 | 16.2 | 26.5 | 20.3 |
| Carbohydrates | 23.1 | 28.2 | 47.6 | 43.1 |
| Carboxylic acids | 19.8 | 16.8 | 15.2 | 13.2 |
| Phenolic compounds | 1.9 | 6.4 | 0.4 | 3.3 |
| Polymers | 23.0 | 23.7 | 9.2 | 13.8 |
| AWCDa | 0.284 | 0.567 | 0.482 | 0.595 |
aAverage well color development (AWCD) values after 4 days of incubation are reported.