Figure 1
Figure 2
Figure 3
Parameters of the water and the number of collected S_ assimilis individuals in each month of the study
| Parameter | June | July | August | September | October |
|---|---|---|---|---|---|
| Temperature (°C) | 24.6 | 21.0 | 25.1 | 25.0 | 13.8 |
| Conductivity (μS cm-1) | 34 400.0 | 30 500.0 | 26 000.0 | 30 900.0 | 33 500.0 |
| pH | 7.7 | 8.5 | 7.3 | 7.1 | 7.5 |
| Total dissolved solids (g I-1) | 17.1 | 15.25 | 12.9 | 15.4 | 16.7 |
| Dissolved oxygen (mg O2, I-1) | 15.3 | 14.57 | 11.48 | 17.56 | 10.98 |
| Number of specimens (males) | 52 | 11 | 8 | − | − |
| Number of specimens (females) | 13 | 6 | 7 | 1 | 5 |
| Number of specimens (nymphs – Corixinae) | 175 | 62 | 8 | 4 | − |