Concept
Lanice conchilega in littoral sand
| URI | http://vocab.nerc.ac.uk/collection/M20/current/JNCCMNCR00000342/1/ | |
|---|---|---|
| Within Vocab | Marine Habitat Classification for Britain and Ireland Version 04.05 | |
| Alternative Labels | LS.LSa.MuSa.Lan | |
| Definition | This biotope usually occurs on flats of medium fine sand and muddy sand, most often on the lower shore but sometimes also on waterlogged mid shores. The sand may contain a proportion of shell fragments or gravel. Lan can also occur on the lower part of predominantly rocky or boulder shores, where patches of sand or muddy sand occur between scattered boulders, cobbles and pebbles. Conditions may be tide-swept, and the sediment may be mobile, but the biotope usually occurs in areas sheltered from strong wave action. The sediment supports dense populations of the sand mason Lanice conchilega. Other polychaetes present are tolerant of sand scour or mobility of the sediment surface layers and include the polychaetes Anaitides mucosa, Eumida sanguinea, Nephtys hombergii, Scoloplos armiger, Aricidea minuta, Tharyx spp. and Pygospio elegans. The mud shrimp Corophium arenarium and the cockle Cerastoderma edule may be abundant. The baltic tellin Macoma balthica may be present. On boulder shores, and where pebbles and cobbles are mixed in with lower shore tide-swept sand with dense L. conchilega between the cobbles, the infaunal component is rarely sampled. The infaunal community under these circumstances, provided that the cobbles are not packed very close together, is likely to be similar to that in areas without the coarse material. | |
| Date | 2018-02-13T18:42:27 | |
| Identifier | SDN:M20::JNCCMNCR00000342 | |
| Note | accepted | |
| Is Version Of | JNCCMNCR00000342 | |
| version | 1 | |
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