highly significantP < 0.001
Highly significant differences were found only for sediment water content (A: 39.3 ± 24.3%, B: 20.5 ± 6.5%; U = 56, P < 0.001) and mineral matter content (A: 95.0 ± 4.3%, B: 99.0 ± 0.9%; U = 69, P < 0.001), but these features are directly dependent on water flow.