Table 2 Environmental conditions of Luronium natans
N | Mean | SD | Min | Max | Median | |
|---|---|---|---|---|---|---|
water characteristics | ||||||
pH | 723 | - | - | 4.52 | 8.76 | 5.88 |
Eh [mV] | 192 | 142.3 | 89.1 | 5 | 419 | 94 |
Conductivity [µS cm−1] | 723 | 38.3 | 20.9 | 19.0 | 106.1 | 28.1 |
Ca [mg dm−3] | 723 | 3.9 | 2.4 | 1.6 | 11.7 | 2.9 |
CO2 [mg dm-3] | 147 | 3.39 | 2.73 | 0 | 9.42 | 2.3 |
HCO3- [mg dm-3] | 246 | 13.96 | 10.81 | 6.86 | 91.08 | 11.44 |
Ptot. [mg dm−3] | 714 | 0.05 | 0.04 | 0.01 | 0.22 | 0.04 |
Ntot. [mg dm−3] | 714 | 0.90 | 0.38 | 0.27 | 2.50 | 0.76 |
Water color [mg Pt dm−3] | 723 | 31.8 | 24.9 | 5 | 130 | 22 |
Humic acids [mg dm−3] | 723 | 2.6 | 1.6 | 0.8 | 9.3 | 2.5 |
Oxygenation [%] | 616 | 96.6 | 20.0 | 37.2 | 155.7 | 91.5 |
Temperature [oC] | 616 | 23.8 | 2.7 | 18.8 | 27.8 | 24.4 |
PAR [%] | 713 | 25.8 | 15.7 | 0.7 | 86.7 | 23.1 |
Water transparency[m] | 723 | 3.3 | 1.1 | 1.0 | 7.0 | 3.4 |
Depth [m] | 723 | 1.0 | 0.6 | 0.5 | 3.5 | 0.5 |
sediment characteristics | ||||||
pH | 307 | - | - | 4.20 | 6.85 | 5.90 |
Eh [mV] | 307 | -80.3 | 157.0 | -276 | 314 | -77 |
Conductivity [µS cm−1] | 307 | 38.5 | 24.9 | 6.7 | 144.7 | 29.3 |
Organic matter [%] | 307 | 5.1 | 14.0 | 0.3 | 63.4 | 1.0 |
Hydration [%] | 307 | 29.8 | 15.8 | 4.5 | 94.1 | 25.2 |
Mineral matter [%] | 307 | 92.7 | 17.0 | 36.6 | 99.7 | 99.3 |