Wales INNS portal

Marenzelleria viridis (Verrill, 1873) non-native

Species, Annelid, Marine

Establishment status: GB Establishment Status - Unknown

• Occurrences: 0

Mercenaria mercenaria (Linnaeus, 1758) – Qahog non-native

Species, Mollusc, Marine

Hard-shelled clam, American hard-shelled clam

Establishment status: GB Establishment Status - Established

• Occurrences: 19

Monocorophium sextonae (Crawford, 1937) non-native

Species, Crustacean, Marine, terrestrial

Establishment status: GB Establishment Status - Established

• Occurrences: 160

Oncorhynchus mykiss (Walbaum, 1792) – Rainbow Trout non-native

Species, Bony fish (Actinopterygii), Freshwater, marine, terrestrial

Steelhead Trout, Brithyll Seithliw, Brithyllod Seithliw

Establishment status: GB Establishment Status - Established

• Occurrences: 194

Ostrea chilensis Philippi, 1844 non-native

Species, Mollusc, Marine

Establishment status: GB Establishment Status - Established

• Occurrences: 10

Petasites japonicus (Siebold & Zucc.) Maxim. – Giant Butterbur non-native

Species, Flowering plant, Freshwater, terrestrial

Creamy Butterbur, Yr Alan Mwyaf, Alan Gawr, Yr Alannon Mwyaf

Establishment status: GB Establishment Status - Established

• Occurrences: 73

Petricolaria pholadiformis (Lamarck, 1818) – American Piddock non-native

Species, Mollusc, Marine

Establishment status: GB Establishment Status - Established

• Occurrences: 9

Pikea californica Harvey, 1853 non-native

Species, Alga, Marine

Establishment status: GB Establishment Status - Established

• Occurrences: 0

Rhithropanopeus harrisii (Gould, 1841) non-native

Species, Crustacean, Marine

Establishment status: GB Establishment Status - Established

• Occurrences: 0

Ruditapes philippinarum (Adams & Reeve, 1850) – Manila Clam non-native

Species, Mollusc, Marine

Establishment status: GB Establishment Status - Established

• Occurrences: 0

Sargassum muticum (Yendo) Fensholt, 1955 – Wireweed non-native

Species, Chromist, Marine

Wireweed (non-native), Japweed, luibh uèireach

Establishment status: GB Establishment Status - Established

Wales marine risk assessment: Monitoring: medium

• Occurrences: 359

Silurus glanis Linnaeus, 1758 – Wels Catfish non-native

Species, Bony fish (Actinopterygii), Freshwater, terrestrial

Catfish, Danube Catfish, Wels, Pencath, Pencathod

Establishment status: GB Establishment Status - Established

• Occurrences: 4

Vallisneria spiralis L. – Tapegrass non-native

Species, Flowering plant, Freshwater

Rhuban y Dŵr, Ruban y Dŵr

Establishment status: GB Establishment Status - Established

• Occurrences: 0