Concept
Semibalanus balanoides on exposed to moderately exposed or vertical sheltered eulittoral rock
| URI | http://vocab.nerc.ac.uk/collection/M20/current/JNCCMNCR00000672/ | |
|---|---|---|
| Within Vocab | Marine Habitat Classification for Britain and Ireland Version 04.05 | |
| Alternative Labels | LR.HLR.MusB.Sem | |
| Definition | Exposed to moderately exposed mid to upper eulittoral bedrock and large boulders characterised by dense barnacles Semibalanus balanoides and the limpet Patella vulgata. The community has a relatively low diversity of species though occasional cracks and crevices in the rock can provide a refuge for small individuals of the mussel Mytilus edulis, the winkle Littorina saxatilis and the whelk Nucella lapillus. Seaweeds are usually not found in high numbers though fissures and crevices in the bedrock can hold a sparse algal community including the green seaweed Enteromorpha intestinalis. On some shores the olive green lichen Verrucaria mucosa can be present in some abundance (Frequent). Three variants have been described: A S. balanoides and P. vulgata dominated community on bedrock (Sem.Sem); S. balanoides and sparse Fucus vesioculosus and red seaweeds (Sem.FvesR); and barnacles and L. littorea eulittoral boulders and cobbles (Sem.LlitX). | |
| Date | 2018-02-13T18:42:27 | |
| Identifier | SDN:M20::JNCCMNCR00000672 | |
| Note | accepted | |
| Has Current Version | 1 | |
| version | 1 | |
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