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Wales marine risk assessment
- Surveillance: high (4)
- Monitoring: high (3)
Priority species for Wales
- Long-term management (12)
- Management (4)
- Prevention (4)
Lifeforms
- Plants (15)
- Crustaceans (9)
- Molluscs (5)
- Fishes (1)
Habitat
- freshwater (25)
- terrestrial (12)
- marine (8)
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Hemigrapsus takanoi non-native
Species, Crustacean, Marine
Establishment status: GB Establishment Status - Established
Wales marine risk assessment: Surveillance: high
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Gunnera tinctoria – Giant-rhubarb non-native
Species, Flowering plant, Freshwater, terrestrial
Giant Rhubarb, Rheonllys Mawr
Establishment status: GB Establishment Status - Established
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Corbicula fluminea non-native
Species, Mollusc, Freshwater
Establishment status: GB Establishment Status - Established
Priority species for Wales: Management
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Dikerogammarus haemobaphes – Demon Shrimp non-native
Species, Crustacean, Freshwater, marine
Establishment status: GB Establishment Status - Established
Priority species for Wales: Long-term management
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Azolla filiculoides – Water Fern non-native
Species, Fern, Freshwater
Rhedynen y Dŵr, Rhedyn y Dŵr
Establishment status: GB Establishment Status - Established
Priority species for Wales: Long-term management
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Myriophyllum heterophyllum – Various-leaved Water-milfoil non-native
Species, Flowering plant, Freshwater
Water-Milfoil
Establishment status: GB Establishment Status - Established
Priority species for Wales: Prevention
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Ludwigia grandiflora – Water Primrose non-native
Species, Flowering plant, Freshwater
Establishment status: GB Establishment Status - Established
Priority species for Wales: Management
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Didemnum vexillum non-native
Species, Tunicate (Urochordata), Marine
Establishment status: GB Establishment Status - Established
Wales marine risk assessment: Monitoring: high
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Fallopia japonica – Japanese Knotweed non-native
Species, Flowering plant, Freshwater, terrestrial
Clymog Japan
Establishment status: GB Establishment Status - Established
Priority species for Wales: Long-term management
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Orconectes virilis – Virile Crayfish non-native
Species, Crustacean, Freshwater, terrestrial
Establishment status: GB Establishment Status - Established
Priority species for Wales: Prevention
-
Ludwigia grandiflora subsp. hexapetala – Uruguayan Hampshire-purslane non-native
Subspecies, Flowering plant, Freshwater
Establishment status: GB Establishment Status - Established
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Pacifastacus leniusculus – Signal Crayfish non-native
Species, Crustacean, Freshwater, terrestrial
American Signal Crayfish
Establishment status: GB Establishment Status - Established
Priority species for Wales: Long-term management
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Impatiens glandulifera – Himalayan Balsam non-native
Species, Flowering plant, Freshwater, terrestrial
Policeman's Helmet, Indian Balsam, Jac y Neidiwr, Penwisg Ddur Heddwas, Cap Dur Heddwas, Ffromlys Chwarennog
Establishment status: GB Establishment Status - Established
Priority species for Wales: Long-term management
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Crepidula fornicata – American Slipper Limpet non-native
Species, Mollusc, Marine
Slipper limpet
Establishment status: GB Establishment Status - Established
Wales marine risk assessment: Monitoring: high
-
Lagarosiphon major – Curly Waterweed non-native
Species, Flowering plant, Freshwater
Ffugalaw Crych, Pib-Flodyn Crych
Establishment status: GB Establishment Status - Established
Priority species for Wales: Long-term management
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Lysichiton americanus – American Skunk-cabbage non-native
Species, Flowering plant, Freshwater, terrestrial
Skunk Cabbage, Pidyn-y-Gog Americanaidd
Establishment status: GB Establishment Status - Established
Priority species for Wales: Long-term management
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Urosalpinx cinerea – American Sting Winkle non-native
Species, Mollusc, Marine
Establishment status: GB Establishment Status - Established
Wales marine risk assessment: Surveillance: high
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Dreissena rostriformis bugensis – Quagga Mussel non-native
Subspecies, Mollusc, Freshwater
Establishment status: GB Establishment Status - Established
Priority species for Wales: Prevention
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Rhododendron ponticum – Rhododendron non-native
Species, Flowering plant, Freshwater, terrestrial
Rhododendron Wyllt
Establishment status: GB Establishment Status - Established
Priority species for Wales: Long-term management
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Dreissena polymorpha – Zebra Mussel non-native
Species, Mollusc, Freshwater
Establishment status: GB Establishment Status - Established