Invasive Alien Species in Northern Ireland

Species list

All SpeciesSpecies in NI Species not in NI

Each species name links to the description page for that species.

 
Seaweed
Common NameScientific Name
Japanese weed Sargassum muticum
 
Plants
Common NameScientific Name
Two-spined acaena Acaena ovalifolia
Canadian pondweed Elodea canadensis
Nuttall's pondweed Elodea nuttallii
Curly waterweed Lagarosiphon major
Cherry laurel Prunus laurocerasus
Giant knotweed Fallopia sachalinensis
Snowberry Symphoricarpos albus
Least duckweed Lemna minuta
Water fern Azolla filiculoides
Japanese Knotweed Fallopia japonica
Rhododendron Rhododendron ponticum
New Zealand Pigmyweed Crassula helmsii
Salmonberry Rubus spectabilis
Small-leaved Cotoneaster Cotoneaster integrifolius
Midland Hawthorn Crataegus laevigata
Sea-buckthorn Hippophae rhamnoides
Parrot's Feather Myriophyllum aquaticum
Sycamore Acer pseudoplanatus
Himalayan Balsam Impatiens glandulifera
Floating Pennywort Hydrocotyle ranunculoides
Giant Hogweed Heracleum mantegazzianum
Common Cord-grass Spartina anglica
Spanish Bluebell Hyacinthoides hispanica
 
Parasites
Common NameScientific Name
fish parasite Pomphorhynchus laevis
Swim-bladder nematode Anguillicola crassus
Monogean salmon parasite Gyrodactylus salaries
 
Invertebrates
Common NameScientific Name
shrimp Hemimysis anomala
Pacific oyster Crassostrea gigas
Asian clam Corbicula fluminea
Leathery sea squirt Styela clava
Australian flatworm Australoplana sanguinea
amphipod Dikerogammarus villosus
Western corn rootworm Diabrotica virgifera virgifera
Harlequin ladybird Harmonia axyridis
Colorado beetle Lepinotarsa decemlineata
Great spruce bark beetle Dendroctonus micans
New Zealand flatworm Artioposthia triangulata
Slipper limpet Crepidula fornicata
Zebra Mussel Dreissena polymorpha
Lily Beetle Lilioceris lilii
Freshwater shrimp Gammarus pulex
North American Signal Crayfish Pacifastacus leniusculus
Chinese mitten crab Eriocheir sinensis
 
Fish
Common NameScientific Name
Farmed Atlantic salmon Salmo salar
Common carp Cyprinus carpio
Common bream Abramis brama
Roach Rutilus rutilus
Topmouth gudgeon Pseudorasbora parva
 
Birds
Common NameScientific Name
Canada Goose Branta canadensis
Ruddy Duck Oxyura jamaicensis
 
Mammals
Common NameScientific Name
Feral ferret Mustela putorius furo
Grey Squirrel Sciurus carolinensis
American Mink Mustela vison
Sika Deer Cervus nippon
Feral Goat Capra domestic