| Impact ID | 3541 |
| Impact Type | Other Ecological Benefits |
| Study Type | Observational |
| Study Location | N/A |
| Impact Description | Non-native salmonids in the Great Lakes support a multimillion dollar sport fishing economy and have caused alewife (Alosa pseudoharengus) populations to decline to the extent that salmonid stocking has been reduced to bolster alewife abundance and sustain the sport fisheries. |
| Reference | 34010 |
| Cost | |
| Location | Great Lakes, USA |