Invasive Species Ireland

American lobster

Homarus americanus

Status:

Potential

Habitat:

Marine

Threats:

Highly adaptable to new environments and food sources. Highly reproductive.

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Asian hornet

Vespa velutina

Status:

Potential

Habitat:

Terrestrial

Threats:

A highly aggressive predator of native insects, posing a significant threat to honey bees and other pollinators.

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Carpet sea squirt

Didemnum vexilum

Status:

Potential

Habitat:

Marine

Threats:

colonies overgrowing and swamping other species and covering fish spawning grounds, aquaculture cages etc.

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Coypu

Myocaster coypus

Status:

Established

Habitat:

Terrestrial

Threats:

Riparian, wetland habitats destruction

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Crayfish plague

Aphanomyces astaci

Status:

Established

Habitat:

Freshwater

Threats:

Destruction of the native White - Clawed Crayfish population

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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.

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Water primrose

Ludwigia grandiflora

Status:

Potential

Habitat:

Freshwater

Threats:

Choke waterways and competing with native species

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Whitetop weed

Parthenium hysterophorus

Status:

Potential

Habitat:

Terrestrial

Threats:

Competes with native species

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