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Table 2
Number of taxa, density, the values of dominance (D%), frequency (F%) and the Shannon–Wiener H′ indices calculated for the rotifer communities in the upper and lower courses of the Bolina River.
| Taxa/Values | Upper course | Lower course | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
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| Planktonic samples | Periphytic samples | Planktonic samples | Periphytic samples | |||||||
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| Frequency (%) | Density (ind. 10 cm−3) [maximum value] | Dominance | Density (ind. 10 cm−2) [maximum value] | Dominance | Frequency (%) | Density (ind. 10 cm−3) [maximum value] | Dominance | Density (ind. 10 cm−2) [maximum value] | Dominance | |
| Bdelloidea non determinata | 20.00 | – | – | 160 | 7.36 | 13.33 | 1 | 1.64 | – | – |
| Brachionus angularis Gosse, 1851 | 6.67 | – | – | 50 | 1.27 | 6.67 | 1 | 0.82 | – | – |
| Brachionus plicatilis Müller, 1786 | 26.67 | 23 | 76.19 | – | – | 33.33 | 76 | 93.44 | 40 | 1.66 |
| Brachionus quadridentatus Hermann, 1783 | – | – | – | – | – | 6.67 | 1 | 0.82 | – | – |
| Brachionus rubens Ehrenberg, 1838 | 6.67 | 1 | 2.38 | – | – | – | – | – | – | – |
| Cephalodella catellina (Müller, 1786) | 6.67 | – | – | 480 | 12.18 | 6.67 | 1 | 0.82 | – | – |
| Colurella adriatica Ehrenberg, 1831 | 66.67 | 3 | 16.67 | 960 | 45.94 | 20.00 | 1 | 0.82 | 480 | 23.29 |
| Colurella colurus (Ehrenberg, 1830) | 40.00 | 1 | 4.76 | 480 | 24.11 | 33.33 | 1 | 1.64 | 640 | 30.12 |
| Encentrum marinum (Dujardin, 1841) | 13.33 | – | – | 160 | 5.08 | 13.33 | – | – | 960 | 43.26 |
| Keratella quadrata (Müller, 1786) | – | – | – | – | – | 6.67 | – | – | 40 | 1.66 |
| Rotaria rotatoria (Pallas, 1766) | 6.67 | – | – | 160 | 4.06 | – | – | – | – | – |
| The Shannon–Wiener index H′ | 1.07 | 2.14 | 0.51 | 1.73 | ||||||
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