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Species Accounts
Species Accounts
Species Accounts
Established
Freshwater
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Carpet sea squirt
Didemnum vexillum
Status:
Established
Habitat:
Marine
Threats:
Alter marine habitats.
Find out more ›
Devil’s tongue weed
Grateloupia turuturu
Status:
Established
Habitat:
Marine
Threats:
Outcompetes native species. Can survive in a wide range of habitats.
Find out more ›
Japanese skeleton shrimp
Caprella mutica
Status:
Established
Habitat:
Marine
Threats:
Reproduces quickly. Outcompetes native species.
Find out more ›
Leathery sea squirt
Styela clava
Status:
Established
Habitat:
Marine
Threats:
Competes against native species for food and space. Fouls boats, oyster beds and moorings
Find out more ›
Pacific oyster
Magallana gigas
Status:
Established
Habitat:
Marine
Threats:
Encrusts hard surfaces
Find out more ›
Slipper limpet
Crepidula fornicata
Status:
Established
Habitat:
Marine
Threats:
Habitat Alteration.
Find out more ›
Smooth cordgrass
Spartina anglica
Status:
Established
Habitat:
Marine
Threats:
Negative impacts on native intertidal communities.
Find out more ›
Wakame
Undaria pinnatifida
Status:
Established
Habitat:
Marine
Threats:
Habitat alteration. Loss of native biodiversity.
Find out more ›
Wire weed
Sargassum muticum
Status:
Established
Habitat:
Marine
Threats:
Competition with native species.
Find out more ›
Invasive Species Ireland
Invasive Species Ireland
About ISI
Research
Invasive Species Maps
Back
Legislation
Northern Ireland
Policy Documents for Northern Ireland
Ireland
European Union
Management Measures for Widely Spread Species
Back
Latest Ireland Legislation
Back
Species Accounts
Species Alerts
Back
What can I do?
Invasive Plant Management
Site Management Resources
Back
Biosecurity & Prevention
Check Clean Dry
Be Pet Wise
Be Plant Wise
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