Table 1 Mean physico-chemical parameters in the six earthen fish ponds

Control

10.6 ± 8.4

6.73 ± 0.29

26.49 ± 2.41^A

61.74 ± 21.66^BC

0.03 ± 0.04

Amagoro

5.44 ± 2.61

6.32 ± 0.15

23.87 ± 1.38^B

34.52 ± 21.1^D

0.07 ± 0.16

Angurai

8.34 ± 3.22

6.71 ± 0.28

24.24 ± 1.12^B

60.63 ± 29.5^BC

0.02 ± 0.02

Kamolo

6.45 ± 4.86

6.69 ± 0.31

23.66 ± 0.88^B

57.98 ± 14.8^C

0.01 ± 0.01

Kolanyo

6.61 ± 4.47

6.76 ± 0.67

23.48 ± 2.70^B

81.52 ± 10.1^AB

0.56 ± 0.07

Osajai

4.86 ± 2.81

6.50 ± 0.25

24.55 ± 1.69^B

86.66 ± 29.60^A

0.03 ± 0.02

F – value

1.72

2.03

3.31

6.31

0.75

P – value

0.1483

0.091

0.012

0.0001

0.059