Invasive Species Ireland

Dace

Leuciscus leuciscus

Status:

Established

Habitat:

Freshwater

Threats:

Negative impacts on native salmonids.

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Didemnum vexillum

Status:

Established

Habitat:

Marine

Threats:

Alter marine habitats.

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Eastern baccharis

Baccharis halimifolia

Status:

Potential

Habitat:

Terrestrial

Threats:

The shrub can grow into dense impenetrable thickets that choke all other native vegetation. EU Species of Union Concern.

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Fanwort

Cabomba caroliniana

Status:

Potential

Habitat:

Freshwater

Threats:

Competition with native species. Clogging of waterways. EU Species of Union Concern

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Feral Ferret

Mustela furo

Status:

Established

Habitat:

Terrestrial

Threats:

Threatens protected bird species.

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Fishhook waterflea

Cercopagis pengoi

Status:

Potential

Habitat:

Freshwater

Threats:

Competiton with native invertebrates. Negative impacts on native fish.

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Floating pennywort

Hydrocotyle ranunculoides

Status:

Established

Habitat:

Freshwater

Threats:

Clogs waterways and negatively impacts on native species and ecosystems.

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Floating primrose - willow

Ludwigia peploides

Status:

Potential

Habitat:

Freshwater

Threats:

Shades out native plants and changes water chemistry

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Giant hogweed

Heracleum mantegazzianum

Status:

Established

Habitat:

Terrestrial

Threats:

Public health hazard. Competition with native species.

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