Table 3: Range of pH, EC and soluble total nitrates, phosphates and potassium in various water habitats of Salvinia molesta infestations in Botswana. (Okavango Delta (Source: [51]); Kwando-Linyanti-Chobe (Source: [137]).

Nutrients Moremi Game Reserve - Okavango Delta (18 sites) Kwando-Linyanti Rivers
(15 sites)
Chobe River
(6 sites)
pH units 4.5 - 10.3 6.45 - 9.87 6.72 - 9.12
EC, ┬ÁS cm-1 20 - 580 106 - 215 59 - 880
NO3-N mg L-1 0.02 - 1.50 0.03 - 1.78 0.04 - 1.81
PO4-P mg L-1 0.02 - 0.90 0.01 -1.10 0.02 - 1.0
K mg L-1 0.3 - 6.80 2.51 - 5.83 1.61 - 6.92