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, µS 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