Alligator weed
Alternanthera philoxeroides
Status:
Potential
Habitat:
Freshwater
Threats:
Chokes up riverine habitats when it becomes established
Brown Bullhead Catfish
Ameiurus nebulosus
Status:
Potential
Habitat:
Freshwater
Threats:
Negative impacts on native fish species.
Chinese mitten crab
Eriocheir sinensis
Status:
Potential
Habitat:
Freshwater
Threats:
Threatens ecosystem functioning and protected species.
Fanwort
Cabomba caroliniana
Status:
Potential
Habitat:
Freshwater
Threats:
Competition with native species. Clogging of waterways. EU Species of Union Concern
Fishhook waterflea
Cercopagis pengoi
Status:
Potential
Habitat:
Freshwater
Threats:
Competiton with native invertebrates. Negative impacts on native fish.
Gyrodactylus salaris
Gyrodactylus salaris
Status:
Potential
Habitat:
Freshwater
Threats:
Serious negative impacts on salmonid stocks.
North American Signal Crayfish
Pacifastacus leniusculus
Status:
Potential
Habitat:
Freshwater
Threats:
Detrimental impacts on white clawed crayfish. Human health impacts.
Quagga mussel
Dreissena bugensis
Status:
Potential
Habitat:
Freshwater
Threats:
Fouling, negative impacts on native species and local extinction of unionids.
Ruffe
Gymnocephalus cernuus
Status:
Potential
Habitat:
Freshwater
Threats:
Negative impacts on native fish communities.
Invasive Species Ireland

Invasive Species Ireland