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Table 3
The average biomass (g · m−2) of the macrozoobenthos in the rheolimnic and limnetic zone of the Włocławek Dam Reservoir.
| Macrozoobenthos | Rheolimnic zone | Limnetic zone |
|---|---|---|
| Unio sp. * | 1418.05 | 0.00 |
| Sphaerium sp. * | 347.71 | 40.51 |
| Viviparus viviparus* | 63.34 | 0.00 |
| Pisidium sp. | 10.88 | 0.13 |
| Bithynia tentaculata* | 3.94 | 0.00 |
| Dreissena polymorpha * | 2.80 | 0.00 |
| Valvata piscinalis * | 1.35 | 0.00 |
| Radix auricularia | 0.73 | 0.00 |
| MOLLUSCA − total* | 1848.79 | 40.64 |
| OLIGOCHAETA* | 168.72 | 81.34 |
| CHIRONOMIDAE | 266.43 | 213.59 |
| HIRUDINEA* | 30.48 | 0.00 |
| NEMATODA* | 0.00 | 0.13 |
| ZOOBENTHOS − total* | 2314.42 | 335.72 |
| ZOOBENTHOS − without Mollusa* | 465.63 | 295.07 |
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