| Impact ID | 8237 |
| Impact Type | Environmental Water Quality |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Dramatic increases in summer silica were initiated in the early 2000s in Lake Huron and in 2004 in Lake Michigan and seem to be associated with the expansion of quagga mussel (Dreissena bugensis) populations in the lakes at those times |
| Reference | 24582 |
| Cost | |
| Location | Lake Michigan, USA |