Table 2. Diversity statistics and recovery of bacterial phyla from MFC anode biofilms and primary clarifier effluents.
Source | Anode biofilm | Primary clarifier effluent | |||||
Library ID | W1 | W2 | W3 | W4 | PC1 | PC2 | PC4 |
Sampling day | 44 | 133 | 263 | 295 | 14 | 152 | 304 |
Shannon's Index | 3.5 | 3.4 | 3.5 | 3.6 | 3.3 | 2.8 | 2.0 |
Simpson Diversity Index (1 - D) | 0.96 | 0.94 | 0.96 | 0.97 | 0.94 | 0.80 | 0.66 |
Number of clones sequenced | 88 | 84 | 77 | 73 | 72 | 146 | 91 |
Number of O.T.U. (99% cutoff) | 47 | 43 | 41 | 46 | 40 | 54 | 27 |
Chao1 Richness | 228±65 | 203±59 | 77±15 | 119±27 | 96±22 | 180±42 | 45±10 |
Sørensen's similarity coefficients | |||||||
W1 | 0.18 | 0.11 | 0.11 | 0.09 | 0.06 | 0.11 | |
W2 | 0.21 | 0.14 | 0.12 | 0.10 | 0.14 | ||
W3 | 0.32 | 0.03 | 0.00 | 0.00 | |||
W4 | 0.00 | 0.02 | 0.03 | ||||
PC1 | 0.28 | 0.21 | |||||
PC2 | 0.20 |