Table 3.
Richness (number of taxa or used carbon sources) and Simpson’s diversity index characterizing the studied lakes.
| Lake | Phylogenetic Richness | Phylogenetic Simpson 1-D index | Number of used Carbon source | Used Carbon source Simpson 1-D index |
|---|---|---|---|---|
| Przystań | 105 | 0.5733 | 30 | 0.937 |
| Mamry | 127 | 0.5889 | 25 | 0.9458 |
| Dargin | 108 | 0.5963 | 25 | 0.9277 |
| Kisajno | 122 | 0.6453 | 27 | 0.9264 |
| Niegocin | 110 | 0.633 | 24 | 0.9247 |
| Boczne | 129 | 0.6191 | 22 | 0.9283 |
| Jagodne | 140 | 0.6951 | 28 | 0.9368 |
| Szymoneckie | 137 | 0.707 | 28 | 0.9391 |
| Szymon | 135 | 0.6719 | 31 | 0.9456 |
| Tałtowisko | 138 | 0.6791 | 30 | 0.9439 |
| Tałty | 132 | 0.6733 | 18 | 0.9126 |
| Ryńskie | 123 | 0.6979 | 25 | 0.9399 |
| Mikołajskie | 136 | 0.6702 | 21 | 0.9302 |
| Bełdany | 132 | 0.7058 | 17 | 0.9234 |
| Śniardwy | 90 | 0.555 | 17 | 0.8976 |
| Spearman correlation with TSI | r = 0.61 p = 0.01 | r = 0.91 p < 0.0005 | r = −0.1 p = 0.7 | r = −0.03 p = 0.9 |
In the case of taxonomic diversity at the family level, OTU richness and diversity were positively correlated with the mean TSI of the studied lakes. In the case of metabolic fingerprinting, we did not find a significant correlation between the TSI and the number of bacterial carbon sources (richness equivalent) or Simpson’s diversity index.