| Impact ID | 4706 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Competition for space (due to the smothering of settled individuals with their tube-building material and creating future unsuitable settling surface) has been the primary factor in reducing macroinvertebrate abundance in invaded areas of the Rhine |
| Reference | 36967 |
| Cost | |
| Location | Rhine |