| Impact ID | 2713 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | The densities of three species of unionid clams, recruitment of young-of-the-year unionids, and condition of unionids was significantly decreased after the arrival of zebra mussels. |
| Reference | 14801 |
| Great Lakes Region | No |
| Cost | |
| Location | Hudson River, New York |
