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Appearance of Heterosiphonia japonica (Ceramiales: Rhodophyceae) on the west coast of Scotland, with notes on Sargassum muticum (Fucales: Heterokontophyta)

Published online by Cambridge University Press:  23 June 2009

Colin G. Moore  and
Dan B. Harries
Colin G. Moore*
Affiliation:
School of Life Sciences, Heriot-Watt University, Riccarton, Edinburgh EH14 4AS, UK
Dan B. Harries
Affiliation:
School of Life Sciences, Heriot-Watt University, Riccarton, Edinburgh EH14 4AS, UK
*
Correspondence should be addressed to: C.G. Moore, School of Life Sciences, Heriot-Watt University, Riccarton, Edinburgh EH14 4AS, UK email: [email protected]
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Abstract

Following the discovery of the newly introduced red alga Heterosiphonia japonica in Loch Sunart, West Scotland in 2008, its local distribution, abundance and dominance within the algal community was examined by in situ observations and algal collections at sites in Loch Sunart and Loch Creran. It was found to be common in both lochs at semi-exposed and sheltered locations, where it was generally one of the dominant species attaining 12% coverage of the seabed below a Laminaria saccharina forest canopy and 28% cover in the shallow circalittoral, where it formed a virtual macroalgal monoculture. Possible vectors for its spread in the area are discussed. The presence of Sargassum muticum is also reported at one of the sites, representing the most northerly UK record of this species in the literature.

Keywords

Heterosiphonia japonicaSargassum muticummacroalgaeScotlanddistributioninvasive
Type
Research Article
Information
Marine Biodiversity Records , Volume 2 , January 2009 , e131
Copyright
Copyright © Marine Biological Association of the United Kingdom 2009

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References

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