| Impact ID | 3708 |
| Impact Type | Predation/Herbivory |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Potamopyrgus antipodarum was found in densities of 200,000 per m2 in the Colorado River, storing most of the Mercury (Hg) accumulations. In areas with no or fewer mudsnails, Hg flowed to fish populations. |
| Reference | 34376 |
| Cost | |
| Location | Colorado River, Arizona, USA |