Invasive Species Ireland

Gyrodactylus salaris

Status:

Potential

Habitat:

Freshwater

Threats:

Serious negative impacts on salmonid stocks.

Find out more ›

Killer shrimp

Dikerogammarus villosus

Status:

Potential

Habitat:

Freshwater

Threats:

Efficient predator. Adapatable to new freshwater systems. Highly mobile.

Find out more ›

Marbled crayfish

Procambarus fallax f. virginalis

Status:

Potential

Habitat:

Freshwater

Threats:

Potential threat of native crayfish. Potential threat to wetlands by extensive burrowing activities.

Find out more ›

North American signal crayfish

Pacifastacus leniusculus

Status:

Potential

Habitat:

Freshwater

Threats:

Detrimental impacts on white clawed crayfish. Human health impacts.

Find out more ›

Pumpkinseed

Lepomis gibbosus

Status:

Potential

Habitat:

Freshwater

Threats:

Highly adaptable to different environments. Fast growing ang high reproductive capacity. Has a broad diet.

Find out more ›

Quagga mussel

Dreissena bugensis

Status:

Potential

Habitat:

Freshwater

Threats:

Fouling, negative impacts on native species and local extinction of unionids.

Find out more ›

Red swamp crayfish

Procambarus clarkii

Status:

Potential

Habitat:

Freshwater

Threats:

Outcompetes the native European crayfish. Degrades riverbanks through burrowing

Find out more ›

Ruffe

Gymnocephalus cernuus

Status:

Potential

Habitat:

Freshwater

Threats:

Negative impacts on native fish communities.

Find out more ›

Salvinia moss

Salvinia molesta

Status:

Potential

Habitat:

Freshwater

Threats:

Grows rapidly. Spreads vegetatively. May smother out other plants.

Find out more ›