Asian clam
Corbicula fluminea
Status:
Established
Habitat:
Freshwater
Threats:
Competition with native species. Biofouling.
Bloody-red shrimp
Hemimysis anomala
Status:
Established
Habitat:
Freshwater
Threats:
Alteration of ecosystem dynamics. Competition with native species.
Chub
Squalius cephalus
Status:
Established
Habitat:
Freshwater
Threats:
Negative impacts on native salmonid species. Associated economic impacts.
Crayfish plague
Aphanomyces astaci
Status:
Established
Habitat:
Freshwater
Threats:
Destruction of the native White - Clawed Crayfish population
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.
Floating pennywort
Hydrocotyle ranunculoides
Status:
Established
Habitat:
Freshwater
Threats:
Clogs waterways and negatively impacts on native species and ecosystems.
New Zealand pigmyweed
Crassula helmsii
Status:
Established
Habitat:
Freshwater
Threats:
Competition with native species.
Nuttalls waterweed
Elodea nuttallii
Status:
Established
Habitat:
Freshwater
Threats:
Negative impacts on native macrophytes and invertebrates.
Invasive Species Ireland

Invasive Species Ireland