SECTION 1: HIGH PRIORITY SPECIES PRESENT IN SCOTLAND 1.1 Terrestrial plants

Himalayan balsam Impatiens glandulifera

Giant Hogweed Heracleum mantegazzianum

Japanese knotweed Fallopia japonica

Rhododendron ponticum

American skunk cabbage Lysichiton americanus

SECTION 1: HIGH PRIORITY SPECIES PRESENT IN SCOTLAND 1.2 Aquatic plants

New Zealand Pigmyweed Crassula helmsii

Canadian and Nuttall’s Waterweeds Elodea spp.

SECTION 1: HIGH PRIORITY SPECIES PRESENT IN SCOTLAND

1.3 Invertebrates

North American Signal Crayfish Pacifastacus leniusculus

SECTION 1: HIGH PRIORITY SPECIES PRESENT IN SCOTLAND

1.4 Vertebrates

American mink Mustela vison

Introduced fish species

SECTION 2: HIGH PRIORITY POTENTIAL INTRODUCTIONS 2.1 Aquatic Plants

Water Fern Azolla fillculoides

Parrots Feather Myriophyllum aquaticum

Floating Pennywort Hydrocotyle glandulifera

Water Primrose Ludwigia spp.

Curly Waterweed Lagarosiphon major

SECTION 2: HIGH PRIORITY POTENTIAL INTRODUCTIONS 2.2 Invertebrates

Gyrodactylus salaris

Killer Shrimp Dikerogammarus villosus

Zebra mussel Dreissena polymorpha

Chinese Mitten Crab Eriocheir sinensis

SECTION 3

Notifiable diseases in fish

Recording Invasive Species Counts (RISC)

Check, Clean, Dry: Biosecurity

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