Concept
Littoral seagrass beds
| URI | http://vocab.nerc.ac.uk/collection/M21/current/JNCCMNCR00001525/ | |
|---|---|---|
| Within Vocab | Marine Habitat Classification for Britain and Ireland Version 15.03 | |
| Alternative Labels | LS.LMp.LSgr | |
| Definition | Mid and upper shore wave-sheltered muddy fine sand or sandy mud with the narrow-leafed eel grass Zostera noltii at an abundance of frequent or above. Exactly what determines the distribution of Z. noltii is not entirely clear. It is often found in small lagoons and pools, remaining permanently submerged, and on sediment shores where the muddiness of the sediment retains water and stops the roots from drying out. An anoxic layer is usually present below 5 cm sediment depth. The infaunal community is characterised by polychaetes Scoloplos armiger, Pygospio elegans and Arenicola marina, oligochaetes, spire shell Hydrobia ulvae, and bivalves Cerastoderma edule and Macoma balthica. The green algae Enteromorpha spp. may be present on the sediment surface. The characterising species lists below give an indication both of the epibiota and of the sediment infauna that may be present in intertidal seagrass beds. The biotope is described in more detail in the National Vegetation Classification (see the chapter on saltmarsh communities in Rodwell, 2000). | |
| Date | 2018-02-13T18:46:01 | |
| Identifier | SDN:M21::JNCCMNCR00001525 | |
| Note | accepted | |
| Has Current Version | 1 | |
| version | 1 | |
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