| Impact ID | 4315 |
| Impact Type | Recreation |
| Study Type | Anecdotal |
| Study Location | Field |
| Impact Description | Carassius auratus increases the turbidity of water in a suburban lake, which is though to be the reason for the extirpation of stocked game fish. Removal of the goldfish (for the second time) and rehabilitation of the lake was estimated at $300,000. |
| Reference | 1910 |
| Cost | $300,000 USD |
| Location | |