Table 1: Concentration of ΣDDT (ng/g), PP'DDT (ng/g) and PP'DDE (ng/g) in different fish species sampled from Lake Ziway, Ethiopia.
| Fish species | Mean Σ DDT (ng/g) | PP' DDT (ng/g) | PP' DDE (ng/g) |
| Oreochramis nilaoticus | 30.30b | 20.33a | 9.97b |
| Ciprinus carpio | 35.65a | 20.38a | 15.25a |
| Carassius carassius | 27.05c | 18.78b | 8.31c |
| P-value | < 0.0001 | < 0.0001 | < 0.0001 |
Values in the same column with different letters are significantly different by the Duncan's multiple range test (α = 0.05).