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Species list
- WFD UKTAG aquatic alien species impact (162)
- NRW Sustainable Management of Natural Resources (SMNR) (136)
- EU Invasive Alien Species Regulation (66)
- Contingency plan species for Wales (58)
- UK Marine priority NIS list (2020) (54)
- INNS - Wales Priority Species for Action (51)
- WFD UKTAG Alarm species (34)
- Wales Marine Priority INNS (29)
- GB NNSS Alert species (19)
Wales marine risk assessment
- Monitoring: medium (12)
- Surveillance: high (11)
- Monitoring: high (6)
Priority species for Wales
- Long-term management (24)
- Prevention (16)
- Management (11)
Lifeforms
- Plants (136)
- Crustaceans (49)
- Molluscs (31)
- Fishes (28)
- Birds (23)
- Worms (21)
- Mammals (18)
- Chromista (16)
- Amphibians (9)
- Insects (8)
- Reptiles (4)
- Spiders and allies (1)
Habitat
- terrestrial (202)
- freshwater (135)
- marine (130)
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Ruditapes philippinarum – Manila Clam non-native
Species, Mollusc, Marine
Establishment status: GB Establishment Status - Established
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Sagittaria latifolia – Duck-potato non-native
Species, Flowering plant, Freshwater
Duck Potato, Saethlys Llydanddail
Establishment status: GB Establishment Status - Established
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Salvelinus fontinalis – Brook Charr non-native
Species, Bony fish (Actinopterygii), Freshwater, terrestrial
American Brook Trout, Brook Trout, Char, Speckled Charr, Torgoch Afon, Torgochiaid Afon
Establishment status: GB Establishment Status - Established
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Salvinia molesta – Giant Salvinia
Species, Fern, Freshwater
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Sander lucioperca – Zander non-native
Species, Bony fish (Actinopterygii), Freshwater, terrestrial
Pikeperch
Establishment status: GB Establishment Status - Established
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Sargassum muticum – Wireweed non-native
Species, Chromist, Marine
Wireweed (non-native), Japweed, luibh uèireach
Establishment status: GB Establishment Status - Established
Wales marine risk assessment: Monitoring: medium
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Sarracenia purpurea – Pitcherplant non-native
Species, Flowering plant, Terrestrial
Pitcher Plant, Ffiolys, Piserlys
Establishment status: GB Establishment Status - Established
Priority species for Wales: Prevention
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Schizoporella errata non-native
Species, Bryozoan, Marine
Establishment status: GB Establishment Status - Absent
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Schizoporella japonica non-native
Species, Bryozoan, Marine
Establishment status: GB Establishment Status - Established
Wales marine risk assessment: Monitoring: medium
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Sciurus carolinensis – Eastern Grey Squirrel non-native
Species, Terrestrial mammal, Terrestrial
Grey Squirrel, feòrag ghlas, feòragan glasa, Gwiwer Lwyd, Gwiwerod Llwyd
Establishment status: GB Establishment Status - Established
Priority species for Wales: Long-term management
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Sciurus niger – Fox Squirrel non-native
Species, Terrestrial mammal, Terrestrial
Establishment status: GB Establishment Status - Absent
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Silurus glanis – Wels Catfish non-native
Species, Bony fish (Actinopterygii), Freshwater, terrestrial
Catfish, Danube Catfish, Wels, Pencath, Pencathod
Establishment status: GB Establishment Status - Established
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Smyrnium perfoliatum – Perfoliate Alexanders non-native
Species, Flowering plant, Terrestrial
Dulys Drydoll, Dulys Trydwll
Establishment status: GB Establishment Status - Established
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Solieria chordalis non-native
Species, Alga, Marine
Establishment status: GB Establishment Status - Established
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Spartina anglica – Common Cord-grass
Species, Flowering plant
Cortwellt, Cordwellt Cyffredin, Cordwellt
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Sphaerium transversum – Oblong Orb Mussel non-native
Species, Mollusc, Freshwater
Establishment status: GB Establishment Status - Established
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Styela clava – Leathery Sea Squirt non-native
Species, Tunicate (Urochordata), Marine
Establishment status: GB Establishment Status - Established
Wales marine risk assessment: Monitoring: medium
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Syrmaticus reevesii – Reeves's Pheasant non-native
Species, Bird, Terrestrial
Establishment status: GB Establishment Status - Not established
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Tadorna ferruginea – Ruddy Shelduck non-native
Species, Bird, Freshwater, marine, terrestrial
Hwyaden Goch yr Eithin, Hwyaid Coch yr Eithin
Establishment status: GB Establishment Status - Not established
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Tamias sibiricus – Siberian Chipmunk non-native
Species, Terrestrial mammal, Terrestrial
Establishment status: GB Establishment Status - Absent
Priority species for Wales: Prevention