| Impact ID | 3993 |
| Impact Type | Competition |
| Study Type | Experimental |
| Study Location | Field |
| Impact Description | When starry stonewort (Nitellopsis obtusa) is abundant, macrophyte species richness is decreased. |
| Reference | 29177 |
| Great Lakes Region | Yes |
| Cost | |
| Location | Onondaga and Courtland Counties, New York, USA |
