Table 3 Geometric mean (±standard error) of sequencing reads and alpha-diversity indices in sample groups
Parameter | Sewage influent | Sewage effluent | Industrial effluent | Mine runoff | Surface water | Pre-treated | GW observation well | Production well |
|---|---|---|---|---|---|---|---|---|
Reads | 34,300 ± 4300 | 26,200 ± 1800 | 20,600 ± 3700 | 13,300 ± 2200 | 24,200 ± 1100 | 32,700 ± 5400 | 15,900 ± 2600 | 11,300 ± 2100 |
OTUs | 700 ± 40 | 800 ± 20 | 290 ± 40 | 1120 ± 50 | 890 ± 20 | 630 ± 40 | 470 ± 30 | 370 ± 10 |
Observed | 490 ± 30 | 580 ± 10 | 170 ± 20 | 640 ± 20 | 730 ± 10 | 530 ± 30 | 320 ± 30 | 250 ± 10 |
ACE | 940 ± 60 | 1080 ± 30 | 510 ± 40 | 1490 ± 60 | 1230 ± 20 | 880 ± 60 | 590 ± 40 | 480 ± 20 |
Chao1 | 630 ± 40 | 720 ± 10 | 300 ± 30 | 810 ± 30 | 920 ± 10 | 710 ± 40 | 410 ± 30 | 320 ± 20 |
Shannon | 3.96 ± 0.15 | 4.15 ± 0.07 | 2.74 ± 0.26 | 5.35 ± 0.22 | 4.91 ± 0.02 | 3.99 ± 0.10 | 4.60 ± 0.07 | 4.15 ± 0.09 |
Simpson | 0.91 ± 0.01 | 0.92 ± 0.01 | 0.78 ± 0.03 | 0.97 ± 0.01 | 0.98 ± 0.00 | 0.94 ± 0.01 | 0.96 ± 0.00 | 0.93 ± 0.01 |