Matrix

P species

Before spiking (µg P L⁻¹)

16 h after spiking (µg P L⁻¹)

[P]

190 h after spiking (µg P L⁻¹)

[P]

UHP

DIP

79 ± 6

168 ± 34

+89

198 ± 28

+119

DOP

36 ± 6

43 ± 1

+7

40 ± 7

+4

Biotic river water

DIP

55 ± 1

99 ± 10

+44

196 ± 1

+141

DOP

23 ± 8

51 ± 3

+28

51 ± 4

+28