Curly waterweed
Lagarosiphon major
Status:
Established
Habitat:
Freshwater
Threats:
Significant changes to the ecology of the invaded habitat for native plants, insects and fish.
Dace
Leuciscus leuciscus
Status:
Established
Habitat:
Freshwater
Threats:
Negative impacts on native salmonids.
Didemnum vexillum
Didemnum vexillum
Status:
Established
Habitat:
Marine
Threats:
Alter marine habitats.
Eastern baccharis
Baccharis halimifolia
Status:
Potential
Habitat:
Terrestrial
Threats:
The shrub can grow into dense impenetrable thickets that choke all other native vegetation. EU Species of Union Concern.
Egyptian goose
Alopochen aegyptiacus
Status:
Potential
Habitat:
Terrestrial
Threats:
Hybrisation with goose and duck species. Disease vector. Overgrazing. Outcompetes native fauna.
Fanwort
Cabomba caroliniana
Status:
Potential
Habitat:
Freshwater
Threats:
Competition with native species. Clogging of waterways. EU Species of Union Concern
Feral Ferret
Mustela furo
Status:
Established
Habitat:
Terrestrial
Threats:
Threatens protected bird species.
Fishhook waterflea
Cercopagis pengoi
Status:
Potential
Habitat:
Freshwater
Threats:
Competiton with native invertebrates. Negative impacts on native fish.
Floating pennywort
Hydrocotyle ranunculoides
Status:
Established
Habitat:
Freshwater
Threats:
Clogs waterways and negatively impacts on native species and ecosystems.
Invasive Species Ireland

Invasive Species Ireland