Species of aquatic macrophytes. | Ethiope River (station A) | Range Min-max. | CV % | Ikpoba River (Station B) | Range Min.-Max. | CV % |
Eichhornia crassipes | 24.83 ± 0.29 | 24.50 - 25.00 | 1.20 | 20.83 ± 0.12 | 20.70 - 20.90 | 0.58 |
Eichhornia natan | 23.67 ± 0.58 | 23.00 - 24.10 | 2.5 | 24.20 ± 0.10 | 24.10 - 24.3 | 0.41 |
Nymphaea lotus | 15.50 ± 0.10 | 15.40 - 15.60 | 0.70 | 15.27 ± 0.08 | 15.20 - 15.30 | 0.52 |
Azolla africana | 17.07 ± 1.01 | 16.50 - 18.00 | 5.92 | N.F | N.F | N.F |
Heteranthera califollia | 20.17 ± 0.12 | 20.10 - 20.30 | 0.60 | 18.10 ± 0.10 | 18.00 - 18.20 | 0.55 |
Water lilly | 23.73 ± 0.64 | 23.00 - 24.20 | 2.70 | 20.33 ± 0.58 | 20.00 - 21.00 | 2.85 |
Pistia stratiotes | 18.10 ± 0.36 | 17.80 - 18.50 | 1.99 | 15.10 ± 0.10 | 15.00 - 15.20 | 0.66 |
Lemna spp | N.F | N.F | N.F | 15.33 ± 0.15 | 14.50 - 15.50 | 0.98 |