| Clone library | Clones sequenced | OTUs | γ:α ratio | Estimated OTU richness | Shannon diversity index | Clone library coverage | |
| ACE | Chao | ||||||
| 380 ppm | 75 | 32 | 8.9 | 46.8 | 62.0 | 3.8 | 57.3% |
| 74 | 23 | 4.0 | 59.2 | 47 | 2.9 | 68.9% | |