| Impact ID | 9998 |
| Impact Type | Predation/Herbivory |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | In the Czech Republic, native branchiobdellid ectosymbionts of indigenous crayfish are absent or otherwise found in low abundance in populations of invasive Pacifastacus leniusculus. |
| Reference | 45499 |
| Cost | |
| Location | Czech Republic |