STRIVE Species

Established High Impact Species

Group	Scientific Name	Common Name
Aquatic plants	Azolla filiculoides	Water Fern
	Crassula helmsii	New Zealand Pigmyweed
	Elodea nuttallii	Nuttall’s Waterweed
	Hydrocotyle ranunculoides	Floating Pennywort
	Lagarosiphon major	Curly Waterweed
	Lemna minuta	Least Duckweed
	Myriophyllum aquaticum	Parrott’s Feather
Invertebrates	Dreissena polymorpha	Zebra Mussel
	Eriocheir sinensis	Chinese Mitten Crab
	Gammarus pulex	none
	Gammurus tigrinus	none
Fish	Leuciscus cephalus	Chub
	Leuciscus leuciscus	Dace
Riparian plants	Fallopia japonica	Japanese Knotweed
	Impatiens glandulifera	Himalayan Knotweed
	Heracleum mantegazianum	Giant Hogweed

Potential High Impact Species

The Potential High Impact Species listed below are not yet known to exist in Ireland but if they arrive they could pose a serious threat to our natural environment. We would urge anyone who may know about the arrival of these species to Ireland to contact the National Biodiversity Data Centre as soon as possible.

Click here to download the full Strive species list

Group	Scientific Name	Common Name
Aquatic plants	Ludwigia grandiflora or Ludwigia peploides	Water Primrose
Invertebrates	Astacus astacus	Noble Crayfish
	Astacus leptodactylus	Turkish Crayfish
	Corbicula fluminea	Asian Clam
	Dreissena bugensis	Quagga Mussel
	Gyrodactylus salaris	Parasite
	Hemimysis anomala	Bloody red Shrimp
	Orconectes limosus	Spiny-cheeked/Striped Crayfish
	Pacificastacus leniusculus	Signal Crayfish
	Procambarus clarkii	Re Swamy Crayfish
Fish	Gymnocephalus cernuus	Ruffe
	Pseudorasbora parva	Topmouth Gudgeon
	Zander lucioperca	Zander

Note: Since the STRIVE Priority – potential high impact species list was compiled Hemimysis anomala has now been recorded in Ireland. It has been found in Lough Derg and Lough Ree. Ludwigia grandiflora and Corbicula fluminea have also been recorded.  See Species Alerts for more information.

The National Biodiversity Data Centre is currently focusing on collecting records for the aquatic invasive species listed above. If you see any of these species please submit a record of the sighting as soon as possible.

Records of other invasive species sightings are also welcome.