| Impact ID | 7497 |
| Impact Type | Environmental Water Quality |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | Actinocyclus normanii fo. subsalsa has been associated with the depletion of dissolved silica in shallow bays and coastal areas in the Great Lakes. |
| Reference | 17345 |
| Cost | |
| Location | Saginaw Bay, Michigan, USA |