Pacific or Pink humpback salmon
Oncorhynchus gorbuscha
Status:
Established
Habitat:
Freshwater
Threats:
Has a high reproductive rate. May predate on native plankton, crustaceans and smaller fish.
Pallas' squirrel
Callosciurus erythraeus
Status:
Potential
Habitat:
Terrestrial
Threats:
Outcompeting native red squirrels, and damaging trees by stripping bark.
Parrots feather
Myriophyllum aquaticum
Status:
Established
Habitat:
Freshwater
Threats:
Competition with native macrophytes. Clogging of waterways.
Perennial veldtgrass
Ehrharta calycina
Status:
Potential
Habitat:
Terrestrial
Threats:
Prevents germination of native species
Persian hogweed
Heracleum persicum
Status:
Potential
Habitat:
Terrestrial
Threats:
Ecological damage and a danger of burns to humans
Pumpkinseed
Lepomis gibbosus
Status:
Potential
Habitat:
Freshwater
Threats:
Highly adaptable to different environments. Fast growing ang high reproductive capacity. Has a broad diet.
Purple pampas grass
Cortaderia jubata
Status:
Potential
Habitat:
Terrestrial
Threats:
Crowds out native species
Quagga mussel
Dreissena bugensis
Status:
Potential
Habitat:
Freshwater
Threats:
Fouling, negative impacts on native species and local extinction of unionids.
Raccoon
Procyon lotor
Status:
Established
Habitat:
Terrestrial
Threats:
Voracious predator and can cause decline of waterfowl. disease vector.
Invasive Species Ireland

Invasive Species Ireland