Zebra mussel
Dreissena polymorpha
Invasive summary
A freshwater mussel that spreads rapidly by attaching to boats, infrastructure, and native mussels.
Known impacts
Clogs water infrastructure, alters food webs, and harms native mussel populations.
Management notes
Clean, drain, and dry boats and equipment before moving between water bodies.
Native range
Ponto-Caspian region
Regions where reported
- US - 41 public points
- CA - 40 public points
- MX - 1 public point