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Table 2
Spearman correlation coefficients between total ciliate abundance and abiotic and biotic parameters measured in water and periphyton during the spring and summer colonization period. Significant correlations (defined at *p < 0.05, **p < 0.01 and ***p < 0.001) are in bold.
| Parameters | Total ciliate abundance in spring | Total ciliate abundance in summer | |
|---|---|---|---|
| Water | Danube water level | 0.06 | –0.53* |
| Lake depth | 0.13 | –0.83*** | |
| Water transparency | –0.66** | –0.49 | |
| Water temperature | 0.59* | –0.18 | |
| Dissolved oxygen | –0.06 | –0.07 | |
| pH | –0.45 | 0.14 | |
| Conductivity | –0.17 | 0.68** | |
| Ammonium | –0.24 | 0.40 | |
| Nitrates | 0.10 | –0.32 | |
| Nitrites | 0.39 | –0.34 | |
| Total nitrogen | 0.08 | 0.14 | |
| Total phosphorus | –0.31 | 0.44 | |
| Chlorophyll a | 0.50 | 0.69** | |
| Total suspended solids | 0.63* | 0.46 | |
| Particulate inorganic matter | –0.50 | 0.09 | |
| Particulate organic matter | 0.79*** | 0.55* | |
| Periphyton | Dry weight | 0.45 | –0.15 |
| Ash weight | 0.45 | –0.21 | |
| Ash-free dry weight | 0.53* | –0.07 | |
| Chlorophyll a | 0.54* | 0.13 | |
| Chlorophyll c | 0.43 | –0.08 |
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