Quagga mussel
Dreissena bugensis
Status:
Potential
Habitat:
Freshwater
Threats:
Fouling, negative impacts on native species and local extinction of unionids.
Red swamp crayfish
Procambarus clarkii
Status:
Potential
Habitat:
Freshwater
Threats:
Outcompetes the native European crayfish. Degrades riverbanks through burrowing
Ruffe
Gymnocephalus cernuus
Status:
Potential
Habitat:
Freshwater
Threats:
Negative impacts on native fish communities.
Salvinia moss
Salvinia molesta
Status:
Potential
Habitat:
Freshwater
Threats:
Grows rapidly. Spreads vegetatively. May smother out other plants.
Senegal tea plant
Gymnocoronis spilanthoides
Status:
Potential
Habitat:
Freshwater
Threats:
Fast growing. Pioneer species. Highly adaptable to new environments.
Spiny-cheek crayfish
Orconectes limosus
Status:
Potential
Habitat:
Freshwater
Threats:
Threat to the native European crayfish
Topmouth gudgeon
Pseudorasbora parva
Status:
Potential
Habitat:
Freshwater
Threats:
Negative impacts on native fish and vegetation species.
Virile crayfish
Orconectes virilis
Status:
Potential
Habitat:
Freshwater
Threats:
Predation of native species leading to disruption of habitats
Water hyacinth
Eichhornia crassipes
Status:
Potential
Habitat:
Freshwater
Threats:
Likely to have a significant adverse impact on biodiversity or the related ecosystem services
Invasive Species Ireland

Invasive Species Ireland