Concept
Mixed red seaweeds on moderately exposed lower eulittoral rock
| URI | http://vocab.nerc.ac.uk/collection/M24/current/LRMLRRXR/1/ | |
|---|---|---|
| Within Vocab | Marine Habitat Classification for Britain and Ireland Version 97.06 | |
| Alternative Labels | LR.MLR.R.XR | |
| Definition | Moderately exposed lower eulittoral bedrock and stable boulders may be characterised by a dense turf of red algae. Canopy-forming algae such as Fucus serratus and Himanthalia elongata are sparse (generally < frequent) in this community. The red algal turf is most frequently characterised by a mixture of species, including Mastocarpus stellatus, Chondrus crispus, Osmundea pinnatifida, Corallina officinalis and Palmaria palmata. Amongst these many other species, including Lomentaria articulata, Ceramium spp. and Gelidium pusillum, may also occur. Beneath the turf-forming algae, the rock surface is usually covered by coralline algal crusts. Gaps in the dense turf are frequently dominated by barnacles Semibalanus balanoides and limpets Patella vulgata, while pits and crevices in the rock often provide a refuge for small mussels and gastropods. On moderately exposed shores this biotope is often found in patches amongst the Himanthalia elongata zone (Him) or the F. serratus and red algal mosaics (Fser.R). It is also common on very steep or vertical faces where canopy algae are absent. | |
| Date | 2019-11-26T11:41:44 | |
| Identifier | SDN:M24::LRMLRRXR | |
| Note | accepted | |
| Is Version Of | LRMLRRXR | |
| version | 1 | |
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