Data are spatial occurrence records of thirteen Non-indigenous species (NIS)
(*Bonnemaisonia hamifera, Caprella mutica, Crepidula fornicate, Diadumene
lineata, Ensis leei, Ficopomatus enigmaticus, Grateloupia turuturu, Magallana
gigas, Sargassum muticum, Solidobalanus fallax, Styela clava, Undaria
pinnatifida, Urosalpinx cinerea) *subject to analysis under the UK Marine
Strategy Indicator Assessment 2024 for the UK indicator 'The number of new
populations of established invasive NIS'. Occurrence records from 2003 to 2020
collected in UK waters were combined with baseline data including records as
far back as 1890.
