Species Detail - Wireweed (Sargassum muticum) - Species information displayed is based on the dataset "National Invasive Species Database".

Terrestrial Map - 10km

Distribution of the number of records recorded within each 10km grid square (ITM).
Live Map

Marine Map - 50km

Distribution of the number of records recorded within each 50km grid square (WGS84).
Live Map
Sargassum muticum
Wireweed
NHMSYS0021058667 RecommendedWell-formed
Invasive Species: Regulation S.I. 477/2011 (Ireland) || Invasive Species: High Risk Invasive Species (2013 Report) || Invasive Species: Regulation S.I. 374/2024 (Ireland) || Invasive Species: The Wildlife (Northern Ireland) Order 1985
samut
(Yendo) Fensholt, 1955
Chromist
Species
65
53
32
01/06/2013
04/05/2025
5 January (recorded in 2021)
31 December (recorded in 1973)
Collated by the National Biodiversity Data Centre from different sources, National Invasive Species Database, National Biodiversity Data Centre, Ireland, Wireweed (Sargassum muticum), accessed 12 September 2025, <https://maps.biodiversityireland.ie/Dataset/397/Species/291198>

Records per month (across all datasets)

Records per year (across all datasets)