Parasite

4 - 10 cm

11 - 20 cm

21 - 30 cm

31 - 40 cm

<40 cm

Rmk

Diplostomum mashonense

66.18

87.95

92.17

91.74

85.88

ns

Tylodelphys sp.

22.06A

29.75A

37.95B

33.03A

22.35A

^*

Dolops ranarum

0

0.56A

0.60A

9.17B

11.76B

^*

Spinitectus petterae

0

1.51

3.01

0.46

1.18

ns

Procamallanus laevionchus

1.47

1.13

3.61

3.21

3.53

ns

Polyonchobothrium clarias

26.47A

32.58B

36.14B

23.85A

24.71A

^*

Astiotrema reniferum

0

2.26A

4.22A

14.22B

10.59B

^*

Allocreadium mazoensis

0

1.13A

9.64B

4.13C

7.06B

^*

Piscicolid leeches

0

3.77A

4.82A

0.46B

0

^*

Monobothrioides woodlandi

1.47A

1.51A

4.82A

17.43B

12.94B

^**

Paracamallanus cyatopharynx

2.94B

25.42A

34.94A

44.05A

43.53A

^***

Contracaecum sp.

5.88

4.33

4.82

3.21

5.88

ns

Euclinostomum sp.

1.47A

0.38B

0.60B

2.75A

0

^*

Gyrodactylus sp.

5.88A

4.14A

10.24B

5.50A

0

^*

Eumasenia bangweulensis

2.94A

3.95A

3.01A

7.80B

18.82B

^*

Eustrongyloides sp.

0

2.5

0

0

0

-

Proteocephulus sp.

0

0

0

0

3.0

-

Total No. of fish examined

68

531

166

218

85