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

N.F

Ceratophyllum spp

13.43 ± 0.51

12.50 - 13.50

3.80

17.10 ± 0.12

17.00 - 17.20

0.70