| Impact ID | 7573 |
| Impact Type | Competition |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | Stephanodiscus bineranus thrives in phosphorous rich and silica depleted waters. It reached peak abundance in Lake Michigan and Lake Ontario in the 1950s and 1960s, but since efforts to improve water quality began in the 1970s and grazing from the Dreissena sp. invasion increased in the 1980s, there have been marked declines in S. binderanus populations. |
| Reference | 17692 |
| Cost | |
| Location | Great Lakes, USA |