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

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), 327-329. (doi:10.1017/S0025315404009221h).


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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.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1017/S0025315404009221h
ISSNs: 0025-3154 (print)
1469-7769 (electronic)
Subjects: G Geography. Anthropology. Recreation > GC Oceanography
Q Science > QH Natural history > QH301 Biology
Divisions : University Structure - Pre August 2011 > School of Ocean & Earth Science (SOC/SOES)
ePrint ID: 188383
Accepted Date and Publication Date:
Date Deposited: 24 May 2011 13:36
Last Modified: 31 Mar 2016 13:39
URI: http://eprints.soton.ac.uk/id/eprint/188383

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