| Impact ID | 7487 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Psammonobiotus linearis was first detected in the Great Lakes through surveys of beach sand in 2002 at “low” numbers. Compared to abundance in marine beaches, densities of psammobiont testate rhizopods in the Great Lakes are relatively low overall. |
| Reference | 16258 |
| Cost | |
| Location | Great Lakes, USA |