Concept
Verrucaria maura on littoral fringe rock
| URI | http://vocab.nerc.ac.uk/collection/M20/current/JNCCMNCR00000494/1/ | |
|---|---|---|
| Within Vocab | Marine Habitat Classification for Britain and Ireland Version 04.05 | |
| Alternative Labels | LR.FLR.Lic.Ver | |
| Definition | Bedrock or stable boulders and cobbles in the littoral fringe which is covered by the black lichen Verrucaria maura. This lichen typically covers the entire rock surface giving a distinct black band in the upper littoral fringe. The winkle Littorina saxatilis is usually present. Two variants are defined which both occur in a wide range of wave exposures. On exposed shores V. maura may occur with sparse barnacles such as Chthamalus spp. or Semibalanus balanoides and may be covered by a band of ephemeral seaweeds such as Porphyra umbilicalis or Enteromorpha spp. (Ver.B). Above Ver.B or on more sheltered shores is a species poor community consisting mainly of V. maura and L. saxatilis (Ver.Ver). | |
| Date | 2018-02-13T18:42:27 | |
| Identifier | SDN:M20::JNCCMNCR00000494 | |
| Note | accepted | |
| Is Version Of | JNCCMNCR00000494 | |
| version | 1 | |
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