Table 4: Mean mass (g) remaining per withdrawal event for 6 replicates per species.
| Withdrawal time (Weeks) |
River location |
Mean mass (g) remaining per withdrawal event for 6 replicates |
|
|
Chloris gayana |
Pennisetum purpureum |
Panicum coloratum |
| 2 |
Upstream |
4.283 |
4.366 |
4.600 |
| 2 |
Downstream |
3.583 |
4.183 |
4.266 |
| 4 |
Upstream |
3.633 |
3.783 |
4.250 |
| 4 |
Downstream |
3.333 |
3.766 |
4.083 |
| 6 |
Upstream |
3.366 |
3.566 |
3.833 |
| 6 |
Downstream |
3.183 |
3.850 |
3.383 |
| 8 |
Upstream |
3.083 |
3.350 |
3.100 |
| 8 |
Downstream |
2.766 |
3.550 |
2.966 |
| 10 |
Upstream |
2.766 |
3.150 |
2.800 |
| 10 |
Downstream |
2.216 |
2.966 |
2.783 |