Table 1 Changes in the Na⁺/K⁺-ATPase activity in the tissues of Clarias gariepinus exposed to oxadiazon

Heart

Control

2.47 ± 0.13^a1

2.49 ± 0.07^a1

2.43 ± 0.06^a1

2.52 ± 0.09_a1

0.3

2.29 ± 0.01^a1

1.11 ± 0.03^b2

0.84 ± 0.06^b3

0.58 ± 0.02^b4

0.6

2.06 ± 0.03^b1

1.01 ± 0.01^b2

0.67 ± 0.07^c3

0.43 ± 0.02^c4

1.2

2.03 ± 0.04^b1

0.45 ± 0.01^c2

0.23 ± 0.04^d3

0.18 ± 0.01^d4

Kidney

Control

2.18 ± 0.02^a1

2.18 ± 0.02^a1

2.16 ± 0.15^a1

2.69 ± 0.45^a1

0.3

2.07 ± 0.02^a1

2.02 ± 0.33^a1

2.10 ± 0.09^a1

2.01 ± 0.01^b1

0.6

1.10 ± 0.32^b1

1.08 ± 0.01^b1

0.91 ± 0.08^b2

0.73 ± 0.09^c3

1.2

1.02 ± 0.05^b1

0.81 ± 0.07^c2

0.63 ± 0.04^c3

0.44 ± 0.35^d4

Gill

Control

5.34 ± 0.41^a1

5.42 ± 0.23^a1

5.97 ± 0.37^a1

5.47 ± 0.31^a1

0.3

4.69 ± 0.20^b1

4.11 ± 0.28^b2

2.71 ± 0.37^{b 3}

2.04 ± 0.04^b4

0.6

4.30 ± 0.02^b1

3.63 ± 0.15^c2

2.32 ± 0.45^c3

2.04 ± 0.27^b4

1.2

4.18 ±  0.15^c1

3.06 ± 0.16^d2

1.85 ± 0.14^d3

0.82 ± 0.17^c4

Liver

Control

3.82 ± 0.18^a1

3.53 ± 0.15^a1

3.50 ± 0.29^a1

3.50 ± 0.21^a1

0.3

3.46 ± 0.07^a1

3.14 ± 0.14^b2

2.06 ± 0.05^b3

1.73 ± 0.14^b4

0.6

3.24 ± 0.05^a1

3.03 ± 0.04^c2

1.66 ± 0.47^c3

0.71 ± 0.16^c4

1.2

3.18 ± 0.08^b1

2.07 ± 0.36^d2

1,59 ± 0.05^c3

0.42 ± 0.04^d4