| Impact ID | 3819 |
| Impact Type | Disease/Parasite/Toxicity |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | the presence of the Ponto-Caspian monogenean Gyrodactylus proterorhini shows that the invasive gobiids did not lose all parasites, but introduced
this new component to the fauna of the Baltic basin. |
| Reference | 34926 |
| Cost | |
| Location | Dnieper Estuary to the Vistula River delta |