Invasion

Invasion Description

1st record: England and Scotland (Darwin 1854)

Geographic Extent

United Kingdom, Scotland/The Minch, Loch Shieldaig (Reported by Darwin, 1854 not found in 1985-1987, Furman and Yule 1989); Bangor/United Kingdom, Wales/Conwy Bay; Menai Bridge/United Kingdom, Wales/Menai Strait (historical population, extinct by 1989, Furman and Yule 1989); Milford Haven/United Kingdom, Wales/Cleddan Estuary (Furman and Yule 1989); Gloucester/United Kingdom, England/Severn Estuary (Furman and Yule 1989); Plymouth/United Kingdom, England/Tamar Estuary (historical population, extinct by 1986, Furman and Yule 1989).; Newport, Cardiff/Wales/Bristol Channel (Holmes and Callaway 2021)