N level | Week | N mean removal (mg/L) | N content at the end of 5th week (mg/L) | % removal at the end of 5th week | Total nitrogen (mg/g) in tissues |
5 (mg/L) | 1 | 6.39d | 2.54a | 49 | 20.33a |
15 (mg/L) | 2 | 2.56c | 6.12c | 59 | 20.40a |
25 (mg/L) | 3 | 0.5ab | 5.14b | 79 | 21.67a |
| 4 | 0.68b |
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| 5 | 0.27a |
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