| Impact ID | 9954 |
| Impact Type | Disease/Parasite/Toxicity |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | In United Kingdom waters, popuylations of invasive Dreissena polymorpha was found to carry the nonnative parasite Haplosporidium raabei |
| Reference | 45366 |
| Cost | |
| Location | Cardiff Bay and Grafham Water, United Kingdom |