1
Carpet sea squirt
Didemnum vexillum
Status:
Established
Habitat:
Marine
Threats:
Alter marine habitats.
Devil’s tongue weed
Grateloupia turuturu
Status:
Established
Habitat:
Marine
Threats:
Outcompetes native species. Can survive in a wide range of habitats.
Japanese skeleton shrimp
Caprella mutica
Status:
Established
Habitat:
Marine
Threats:
Reproduces quickly. Outcompetes native species.
Leathery sea squirt
Styela clava
Status:
Established
Habitat:
Marine
Threats:
Competes against native species for food and space. Fouls boats, oyster beds and moorings
Pacific oyster
Magallana gigas
Status:
Established
Habitat:
Marine
Threats:
Encrusts hard surfaces
Slipper limpet
Crepidula fornicata
Status:
Established
Habitat:
Marine
Threats:
Habitat Alteration.
Smooth cordgrass
Spartina anglica
Status:
Established
Habitat:
Marine
Threats:
Negative impacts on native intertidal communities.
Wakame
Undaria pinnatifida
Status:
Established
Habitat:
Marine
Threats:
Habitat alteration. Loss of native biodiversity.
Wire weed
Sargassum muticum
Status:
Established
Habitat:
Marine
Threats:
Competition with native species.
Invasive Species Ireland

Invasive Species Ireland