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Alligator weed
Alternanthera philoxeroides
Status:
Potential
Habitat:
Freshwater
Threats:
Chokes up riverine habitats when it becomes established
Find out more ›
American bullfrog
Lithobates catesbeianus
Status:
Potential
Habitat:
Freshwater
Threats:
Can outcompete and displace native species. Spreads diesease.
Find out more ›
Amur sleeper
Perccottus glenii
Status:
Potential
Habitat:
Freshwater
Threats:
Voracious predator of amphibians and fish. Outcompetes native species. Possible disease vector
Find out more ›
Broadleaf watermilfoil
Myriophyllum heterophyllum
Status:
Potential
Habitat:
Freshwater
Threats:
It creates mats that impede the water flow and reduce sunlight and oxygen availability.
Find out more ›
Brown bullhead catfish
Ameiurus nebulosus
Status:
Potential
Habitat:
Freshwater
Threats:
Negative impacts on native fish species.
Find out more ›
Chinese mitten crab
Eriocheir sinensis
Status:
Potential
Habitat:
Freshwater
Threats:
Threatens ecosystem functioning and protected species.
Find out more ›
Common Carp
Cyprinus carpio
Status:
Potential
Habitat:
Freshwater
Threats:
Alters habitat by consuming plants and invertebrates. Can impact water quality by increasing turbidity.
Find out more ›
Crayfish plague
Aphanomyces astaci
Status:
Potential
Habitat:
Freshwater
Threats:
Destruction of the native White - Clawed Crayfish population
Find out more ›
Dace
Leuciscus leuciscus
Status:
Potential
Habitat:
Freshwater
Threats:
Negative impacts on native salmonids.
Find out more ›
Invasive Species Ireland
Invasive Species Ireland
About ISI
Research
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Back
Legislation
Northern Ireland
Policy Documents for Northern Ireland
Ireland
European Union
Management Measures for Widely Spread Species
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Latest Ireland Legislation
Back
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What can I do?
Invasive Plant Management
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