| Impact ID | 3771 |
| Impact Type | Disease/Parasites/Toxicity |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Toxins produced by P. parvum has caused declines in the populations of numerous fish species in reservoirs of the Upper Colorado and Brazos Rivers |
| Reference | 34636 |
| Great Lakes Region | No |
| Cost | |
| Location | Texas |
