Concept
Chthamalus spp. and Lichina pygmaea on steep exposed upper eulittoral rock
| URI | http://vocab.nerc.ac.uk/collection/M21/current/JNCCMNCR00000652/1/ | |
|---|---|---|
| Within Vocab | Marine Habitat Classification for Britain and Ireland Version 15.03 | |
| Alternative Labels | LR.HLR.MusB.Cht.Lpyg | |
| Definition | Areas of steep and vertical rock in the upper eulittoral on very exposed to moderately exposed shores characterised by tufts of the dark brownish lichen Lichina pygmaea and the barnacles Chthamalus montagui and Chthamalus stellatus, although long-established patches of L. pygmaea ultimately exclude barnacles. The rigid branching thallus of L. pygmaea provides an ideal habitat for the bivalve Lasaea adasoni, the winkles Littorina saxatilis and Melarhaphe neritoides. The anemone Actinia equina and the mussel Mytilus edulis are confined to moist cracks and crevices, while the limpet Patella vulgata is found on the open bedrock. In the south-west the top shell Gibbula umbilicalis can be found on L. pygmaea. On the north-east coast this biotope does not have Chthamalus spp., L. pygmaea being the most important characterising species on these sites. | |
| Date | 2018-02-13T18:46:01 | |
| Identifier | SDN:M21::JNCCMNCR00000652 | |
| Note | accepted | |
| Is Version Of | JNCCMNCR00000652 | |
| version | 1 | |
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