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Long term effects of Ascophyllum nodosum canopy removal on mid shore community structure

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The long term effects of macroalgal canopy removal on community composition were investigated over a 12 year period. Experimental removal of the dominant Ascophyllum nodosum canopy led to short term changes in community composition, the major features of which were still apparent 12 years later. Ascophyllum was slow to recover despite high recruitment, and experimental plots were dominated by Fucus species. After 12 years a mixed assemblage of Fucus serratus, Fucus vesiculosus and Ascophyllum had developed. Canopy removal resulted in a change in the balance between grazing limpets and the cover of red algal turf in the understorey community. The cover of turfing algae declined significantly allowing the area grazed by limpets to extend. This led to a 3–6 fold increase in the limpet population 12 years after canopy removal.

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Citation

Jenkins, S.R., Norton, T.A. and Hawkins, S.J. (2004) Long term effects of Ascophyllum nodosum canopy removal on mid shore community structure Journal of the Marine Biological Association of the United Kingdom, 84, (2), pp. 327-329. (doi:10.1017/S0025315404009221h).

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Published date: 2004

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Local EPrints ID: 188383
URI: http://eprints.soton.ac.uk/id/eprint/188383
ISSN: 0025-3154
PURE UUID: 9efec98e-8894-4f0f-8f26-e2859f01674a

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Date deposited: 24 May 2011 13:36
Last modified: 18 Jul 2017 11:42

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Author: S.R. Jenkins
Author: T.A. Norton
Author: S.J. Hawkins

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