Concept
Himanthalia elongata and red seaweeds on exposed to moderately exposed lower eulittoral rock
| URI | http://vocab.nerc.ac.uk/collection/M21/current/JNCCMNCR00000189/ | |
|---|---|---|
| Within Vocab | Marine Habitat Classification for Britain and Ireland Version 15.03 | |
| Alternative Labels | LR.HLR.FR.Him | |
| Definition | Exposed to moderately exposed lower eulittoral bedrock characterised by the wrack Himanthalia elongata with a dense turf of red seaweeds beneath. H. elongata may occur on tide-swept, sheltered shores in sea lochs (e.g. Loch Maddy). The wrack Fucus serratus is normally present as well. The predominant red seaweeds are usually Mastocarpus stellatus, Osmundea pinnatifida, Corallina officinalis and Palmaria palmata that tend to grow over a crust of the pink coralline algae Lithothamnion spp. Any patches between the algal turf may be colonised by barnacles Semibalanus balanoides, or Balanus perforatus in the south-west, and by the limpet Patella vulgata. Pits and crevices in the rock often provide a refuge for the whelk Nucella lapillus, the winkle Littorina spp. and small individuals of the mussel Mytilus edulis. Besides the dominant seaweeds there are a number of other red, brown and green seaweeds present. These include species such as the red seaweeds Dumontia contorta, Lomentaria articulata, Porphyra spp., the kelp Laminaria digitata and the green seaweeds Enteromorpha intestinalis, Ulva lactuca and Cladophora rupestris. | |
| Date | 2018-02-13T18:46:01 | |
| Identifier | SDN:M21::JNCCMNCR00000189 | |
| Note | accepted | |
| Has Current Version | 1 | |
| version | 1 | |
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