| Impact ID | 3709 |
| Impact Type | Competition |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | Actinocyclus normanii f. subsalsa depletes dissolved silica concentration in shallow bays, limiting native diatoms and promotes the growth of harmful blue-green algae. |
| Reference | 17330 |
| Cost | |
| Location | United States, Saginaw Bay |