| Impact ID | 7457 |
| Impact Type | Infrastructure |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | There are economic costs associated with the biofouling caused by Cordylophora caspia and has reportedly caused blockages of intake tunnels and filters and colonize docks, piers, and pilings near Chicago harbors of Lake Michigan. |
| Reference | 13959 |
| Cost | |
| Location | Lake Michigan, Chicago, USA |