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