Table 1.
Sampling points and dates for examining the number and density of mussels and water snails in 2017 and in 2022.
| Point name | Coordinates | Date in 2017 | Date in 2022 |
|---|---|---|---|
| Kunice | 52.263651, 14.650922 | 11.09.2017 | 5.11.2022 |
| Pławidło | 52.437683, 14.561907 | 11.09.2017 | 5.11.2022 |
| Pamięcin | 52.437661, 14.561824 | 11.09.2017 | 5.11.2022 |
| Ługi Górzyckie | 52.532913, 14.606456 | 11.09.2017 | 5.11.2022 |
| Kostrzyn nad Odrą | 52.582669, 14.621549 | 12.09.2017 | 6.11.2022 |
| Kaleńsko | 52.633846, 14.539146 | 12.09.2017 | 6.11.2022 |
| Porzecze | 52.669977, 14.461437 | 12.09.2017 | 6.11.2022 |
| Cedynia | 52.870383, 14.155140 | 12.09.2017 | 6.11.2022 |
| Bielinek | 52.945551, 14.145225 | 12.09.2017 | 6.11.2022 |
| Piasek | 52.989121, 14.222311 | 13.09.2017 | 7.11.2022 |
| Ognica | 53.059961, 14.354204 | 13.09.2017 | 7.11.2022 |
| Stara Rudnica | 52.821025, 14.188331 | 13.09.2017 | 7.11.2022 |
| Słubice | 52.337923, 14.564294 | 13.09.2017 | 7.11.2022 |