Black rat
Rattus rattus
Status:
Established
Habitat:
Terrestrial
Threats:
Negative impacts on native flora and fauna.
Bloody-red shrimp
Hemimysis anomala
Status:
Established
Habitat:
Freshwater
Threats:
Alteration of ecosystem dynamics. Competition with native species.
Broadleaf watermilfoil
Myriophyllum herterophyllum
Status:
Potential
Habitat:
Freshwater
Threats:
It creates mats that impede the water flow and reduce sunlight and oxygen availability.
Broomsedge bluestem
Andropogon virginicus
Status:
Potential
Habitat:
Terrestrial
Threats:
Aggressive coloniser of disturbed lands. Alters ecosystems.
Brown Bullhead Catfish
Ameiurus nebulosus
Status:
Potential
Habitat:
Freshwater
Threats:
Negative impacts on native fish species.
Brown rat
Rattus norvegicus
Status:
Established
Habitat:
Terrestrial
Threats:
Negative impacts on native flora and fauna.
Carpet sea squirt
Didemnum vexilum
Status:
Potential
Habitat:
Marine
Threats:
colonies overgrowing and swamping other species and covering fish spawning grounds, aquaculture cages etc.
Chinese Bushclover
Lespedeza juncea var. sericea
Status:
Potential
Habitat:
Terrestrial
Threats:
Outcompetes native species
Chinese mitten crab
Eriocheir sinensis
Status:
Potential
Habitat:
Freshwater
Threats:
Threatens ecosystem functioning and protected species.
Invasive Species Ireland

Invasive Species Ireland