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Preliminary Canopy Removal Experiments in Algal Dominated Communities Low on the Shore and in the Shallow Subtidal on the Isle of Man

Preliminary Canopy Removal Experiments in Algal Dominated Communities Low on the Shore and in the Shallow Subtidal on the Isle of Man
Preliminary Canopy Removal Experiments in Algal Dominated Communities Low on the Shore and in the Shallow Subtidal on the Isle of Man
The algal dominated communities immediately above and below the low-water spring level on a moderately exposed Manx shore were investigated by canopy removal experiments. Fucus serratus, Laminaria digitata and L. hyperborea were removed. Competition was shown to be important in determining the zonation of L. digitata and the distribution along the wave exposure gradient of other species such as Alaria esculenta, Desmarestia aculeata and D. viridis, and L. saccharina. Many species of algal epiphytes were early colonizers of canopy removal areas suggesting that competition from canopy algae usually restricts them to an epiphytic habit. The results indicate that interactions between macrophytes are much more important than grazing in structuring these communities.
0006-8055
223-230
Hawkins, S.J.
758fe1c1-30cd-4ed1-bb65-2471dc7c11fa
Harkin, E.
56b35052-883d-4485-8eb6-72396633bdf9
Hawkins, S.J.
758fe1c1-30cd-4ed1-bb65-2471dc7c11fa
Harkin, E.
56b35052-883d-4485-8eb6-72396633bdf9

Hawkins, S.J. and Harkin, E. (1985) Preliminary Canopy Removal Experiments in Algal Dominated Communities Low on the Shore and in the Shallow Subtidal on the Isle of Man. Botanica Marina, 28 (6), 223-230. (doi:10.1515/botm.1985.28.6.223).

Record type: Article

Abstract

The algal dominated communities immediately above and below the low-water spring level on a moderately exposed Manx shore were investigated by canopy removal experiments. Fucus serratus, Laminaria digitata and L. hyperborea were removed. Competition was shown to be important in determining the zonation of L. digitata and the distribution along the wave exposure gradient of other species such as Alaria esculenta, Desmarestia aculeata and D. viridis, and L. saccharina. Many species of algal epiphytes were early colonizers of canopy removal areas suggesting that competition from canopy algae usually restricts them to an epiphytic habit. The results indicate that interactions between macrophytes are much more important than grazing in structuring these communities.

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Published date: 1985
Organisations: Ocean and Earth Science

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Local EPrints ID: 341464
URI: https://eprints.soton.ac.uk/id/eprint/341464
ISSN: 0006-8055
PURE UUID: 6279a9e8-77c6-4f53-87ee-1e8753d0f6aa

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Date deposited: 24 Jul 2012 09:55
Last modified: 18 Jul 2017 05:35

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Contributors

Author: S.J. Hawkins
Author: E. Harkin

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