Concept
Hediste diversicolor, Macoma balthica and Arenicola marina in muddy sand or sandy mud shores
| URI | http://vocab.nerc.ac.uk/collection/M24/current/LSLMUSMUHEDMACARE/1/ | |
|---|---|---|
| Within Vocab | Marine Habitat Classification for Britain and Ireland Version 97.06 | |
| Alternative Labels | LS.LMU.SMu.HedMac.Are | |
| Definition | Mid shore muddy sand in estuaries, sheltered bays and marine inlets. This is the least sheltered and least muddy sub-type of LMU.HedMac, with the lugworm Arenicola marina usually abundant or as the numerically dominant polychaete and Cerastoderma edule relatively frequent. The following characterising species are typically present Eteone longa, Hediste (Nereis) diversicolor, Pygospio elegans, oligochaetes, the mud-burrowing amphipod Corophium volutator, the mud snail Hydrobia ulvae and the Baltic tellin Macoma balthica. Typically a black anoxic layer is present below 5 cm and this can be seen in the Arenicola marina casts. The community differs from LMS.MacAre in the muddiness of the sand and the high abundance of certain species including Hediste diversicolor, oligochaetes and Corophium volutator. LMU.HedMac.Pyg is similar to this biotope, but does not have the significant numbers of Arenicola marina, whilst LMU.HedMac.Mare has a rich bivalve content including Mya arenaria. This biotope can be considered as intermediate between LMS.MacAre and LMU.HedMac.Pyg. | |
| Date | 2019-11-26T11:41:44 | |
| Identifier | SDN:M24::LSLMUSMUHEDMACARE | |
| Note | accepted | |
| Is Version Of | LSLMUSMUHEDMACARE | |
| version | 1 | |
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