Species of aquatic macrophytes. | Ethiope River (station A) | Range Min-max. | CV % | Ikpoba River (Station B) | Range Min.-Max. | CV % |
Eichhornia crassipes | 15.80 ± 0.20 | 15.60 - 16.00 | 1.27 | 14.78 ± 0.06 | 14.70 - 14.90 | 0.41 |
Eichhornia natan | 16.67 ± 0.58 | 16.00 - 17.00 | 3.48 | 16.78 ± 0.08 | 16.70 - 16.90 | 0.48 |
Nymphaea lotus | 12.30 ± 0.31 | 13.00 - 14.00 | 2.52 | 13.37 ± 0.08 | 13.00 - 13.40 | 0.58 |
Azolla africana | 12.00 ± 0.05 | 11.50 - 12.50 | 0.42 | N.F | N.F | N.F |
Heteranthera califollia | 12.70 ± 1.21 | 12.00 - 14.10 | 9.53 | 14.37 ± 0.56 | 14.00 - 15.00 | 3.90 |
Water lilly | 17.13 ± 0.15 | 17.00 - 17.30 | 0.88 | 20.33 ± 0.58 | 20.00 - 21.00 | 2.85 |
Pistia stratiotes | 13.80 ± 0.49 | 13.30 - 14.20 | 3.55 | N.F | N.F | N.F |
Lemna spp | N.F |
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| N.F |
|
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Ceratophyllum spp | 13.43 ± 0.51 | 12.50 - 13.50 | 3.80 | 17.10 ± 0.12 | 17.00 - 17.20 | 0.70 |