| Impact ID | 2976 |
| Impact Type | Habitat Alteration |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | After the arrival of the zebra mussel, water clarity increased chlorophyll a decreased. Decreases were also seen in numbers of native bivalves and polychaetes. Gammarid amphipods and tubificid worms were unchanged. |
| Reference | 22627 |
| Cost | |
| Location | Lake Erie |