2005-2006 Harries et al. Isle of Cumbrae Sargassum muticum records

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Marine Environmental Data & Information Network
Last updated:
01 February 2023
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Summary

The invasive alga Sargassum muticum has recently been reported in the Firth of Lorn, west coast of Scotland. This represents the first sighting of the species north of the Kintyre Peninsula, a land barrier that had been expected to slow the northwards spread of S. muticum. This paper presents a thorough review of literature concerning the dispersal and establishment of this invasive alga and predicts potential dispersal trajectories and likely areas for future establishment in Scotland. From previous dispersal rates, S. muticum is likely to spread throughout the west coast of Scotland in the next few years, predominantly via natural pathways although anthropogenic vectors may also contribute to dispersal. Sheltered and moderately exposed sea lochs and shorelines, on the west coast of Scotland in particular, are likely to provide favourable conditions for the establishment of persistent populations of S. muticum. Conditions on the north and east coasts of Scotland were considered less favourable, both for the dispersal and establishment of S. muticum. The spread of S. muticum is unlikely to cause serious widespread ecological impacts, however, it does have the potential to cause economic damage to the aquaculture industry which is a major employer on the west coast of Scotland. The establishment of dense highly visible canopies would also constitute a degradation of the natural heritage value of Scottish shorelines. It would be prudent to investigate means of preventing persistent populations from establishing in areas of economic importance or with high natural heritage value.

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Additional information

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Added to data.gov.uk
2021-03-15
Access contraints
DASSH terms and conditions apply
Harvest GUID
e4dacb1b-cb48-4478-b4ec-0f9e232ad976
Extent
Latitude: 55.8151° to 55.6984°
Longitude: -4.9891° to -4.8737°
Spatial reference system
urn:ogc:def:crs:EPSG::4326
Dataset reference date
2016-07-15 (publication)
Frequency of update
notPlanned
Responsible party
Heriot-Watt University School of Life Sciences (originator); Data Archive for Seabed Species and Habitats (DASSH) (custodian)
ISO 19139 resource type
dataset
Metadata language
eng
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XML
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CC BY 4.0