Table 4 Temporal relative abundance of finfish encountered in the river during the study period

Alestes baremoze

54

53

65

82

86

59

89

6

–

–

57

12

563

12.40

Brycinus macrolepidotus

9

49

56

66

33

–

–

–

–

–

–

–

213

4.70

Chrysichthys nigrodigitatus

106

105

156

131

110

94

80

–

71

24

50

29

956

21.00

Clarias macromystax

–

–

–

–

–

–

–

–

–

–

5

3

8

0.20

Coptodon marie

11

–

–

–

16

–

–

–

–

–

–

–

27

0.60

Coptodon zilli

98

54

50

50

65

40

69

6

–

–

25

17

474

10.40

Cromeria occidentalis

–

–

–

–

–

–

–

–

–

–

5

10

15

0.30

Distichodus rostratus

3

6

–

–

4

–

–

–

–

–

38

25

76

1.80

Hepsetus akawo

–

–

–

–

–

–

15

–

–

–

39

–

54

1.20

Hydrocynus forskalii

40

44

55

63

106

29

22

130

–

7

44

38

578

12.70

Lates niloticus

2

2

4

5

6

–

3

–

2

–

10

3

37

0.80

Mormyrops anguilloides

–

–

–

–

–

–

–

–

–

5

5

8

18

0.40

Mormyrus rume rume

3

7

11

17

37

–

–

–

–

–

–

9

84

1.80

Oreochromis niloticus

101

92

95

79

87

54

32

20

10

22

31

18

641

14.10

Red tilapia

8

2

4

7

4

–

–

–

–

–

–

–

25

0.60

Sarotherodon galileaus galileaus

2

74

78

67

63

–

–

–

–

8

–

17

309

6.80

Schilbe mystus

39

18

15

27

29

88

57

10

2

10

–

11

306

6.70

Schilbe uranoscopus

–

–

–

–

–

–

–

–

–

–

5

–

5

0.10

Synodontis budgetti

2

5

4

8

20

17

44

19

6

15

11

4

155

3.40

Total

478

511

594

602

666

381

411

191

91

91

325

204

4544

100

Total (%)

10.50

11.20

13.00

13.20

14.70

8.30

9.00

4.20

2.00

2.00

7.20

4.90

100