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  • Species list: WFD UKTAG aquatic alien species impact
  • WFD UKTAG impact: High

Wales marine risk assessment

Priority species for Wales

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Showing 21 - 40 of 44 taxa

  1. Hemigrapsus takanoi Asakura & Watanabe, 2005 non-native

    Species, Crustacean, Marine

    Establishment status: GB Establishment Status - Established

    Wales marine risk assessment: Surveillance: high

  2. Hemimysis anomala G.O. Sars, 1907 non-native

    Species, Crustacean, Freshwater, marine, terrestrial

    Establishment status: GB Establishment Status - Established

  3. Heracleum mantegazzianum Sommier & Levier – Giant Hogweed non-native

    Species, Flowering plant, Freshwater, terrestrial

    Efwr Enfawr

    Establishment status: GB Establishment Status - Established

    Priority species for Wales: Long-term management

  4. Homarus americanus H. Milne Edwards, 1837 – American Lobster non-native

    Species, Crustacean, Marine

    Establishment status: GB Establishment Status - Not established

    Wales marine risk assessment: Surveillance: high

  5. Hydrocotyle ranunculoides L. f. – Floating Pennywort non-native

    Species, Flowering plant, Freshwater

    Dail-Ceiniog Arnofiol

    Establishment status: GB Establishment Status - Established

    Priority species for Wales: Management

  6. Impatiens glandulifera Royle – 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

  7. Lagarosiphon major (Ridl.) Moss ex V.A. Wager – 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

  8. Ludwigia grandiflora (Michx.) Greuter & Burdet – Water Primrose non-native

    Species, Flowering plant, Freshwater

    Establishment status: GB Establishment Status - Established

    Priority species for Wales: Management

  9. Ludwigia grandiflora subsp. hexapetala (Hook. & Arn.) G.L. Nesom & Kartesz – Uruguayan Hampshire-purslane non-native

    Subspecies, Flowering plant, Freshwater

    Establishment status: GB Establishment Status - Established

  10. Lysichiton americanus Hultén & H. St. John – 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

  11. Myriophyllum aquaticum (Vell.) Verdc. – Parrot's-feather non-native

    Species, Flowering plant, Freshwater

    Parrot's Feather, Pluen Parot

    Establishment status: GB Establishment Status - Established

    Priority species for Wales: Long-term management

  12. Myriophyllum heterophyllum Michx. – Various-leaved Water-milfoil non-native

    Species, Flowering plant, Freshwater

    Water-Milfoil

    Establishment status: GB Establishment Status - Established

    Priority species for Wales: Prevention

  13. Orconectes virilis (Hagen, 1870) – Virile Crayfish non-native

    Species, Crustacean, Freshwater, terrestrial

    Establishment status: GB Establishment Status - Established

    Priority species for Wales: Prevention

  14. Pacifastacus leniusculus (Dana, 1852) – Signal Crayfish non-native

    Species, Crustacean, Freshwater, terrestrial

    American Signal Crayfish

    Establishment status: GB Establishment Status - Established

    Priority species for Wales: Long-term management

  15. Persicaria wallichii Greuter & Burdet – Himalayan Knotweed non-native

    Species, Flowering plant, Freshwater, terrestrial

    Y Ganwraidd Himalaiaidd, Clymog yr Himalaya

    Establishment status: GB Establishment Status - Established

  16. Procambarus clarkii (Girard, 1852) – Red Swamp Crayfish non-native

    Species, Crustacean, Freshwater, terrestrial

    Establishment status: GB Establishment Status - Established

    Priority species for Wales: Prevention

  17. Pseudorasbora parva (Temminck and Schlegel, 1846) – Topmouth Gudgeon non-native

    Species, Bony fish (Actinopterygii), Freshwater, terrestrial

    Establishment status: GB Establishment Status - Established

    Priority species for Wales: Management

  18. Rangia cuneata G.B Sowerby I, 1831 – Gulf Wedge Clam non-native

    Species, Mollusc, Freshwater

    Atlantic Rangia

    Establishment status: GB Establishment Status - Established

  19. Rhododendron ponticum L. – Rhododendron non-native

    Species, Flowering plant, Freshwater, terrestrial

    Rhododendron Wyllt

    Establishment status: GB Establishment Status - Established

    Priority species for Wales: Long-term management

  20. Rhododendron ponticum x Rhododendron maximum

    Species hybrid, Flowering plant, Freshwater

    Priority species for Wales: Long-term management

[counting] records from [counting] taxa

This map contains both point- and grid-based occurrences at different resolutions