Items preys

Dry season

Rainy season

F

p value

Fish scales/fishes remains

0.05

3.67

0.06

0.81

Algaes

44.30

61.42

3.61

0.12

Plants debris

89.71

14.00

39.18

0.002

Sand grains

34.71

15.00

11.57

0.02

Insects

5.76

63.67

0.45

0.53

Insects larvaes

4.76

74.67

0.32

0.60

Nematodes

32.19

46.67

3.45

0.12

Trematodes

1.19

9.67

0.62

0.47

Annelids

0.19

4.67

0.20

0.67

Mud

27.43

12.00

11.43

0.02

Other preys

1.71

2.00

4.29

0.09