| Impact ID | 8313 |
| Impact Type | Environmental Water Quality |
| Study Type | Experimental |
| Study Location | Field |
| Impact Description | By selectively grazing on non-nitrogen-fixing components of the algal assembly, the New Zealand mudsnail (Potamopyrgus antipodarum) was able to increase nitrogen fixation in a high-productivity stream. |
| Reference | 24662 |
| Cost | |
| Location | Polecat Creek, Wyoming, USA |