| Concept URI | http://eunis.eea.europa.eu/eunishabitats/A2.313 | 
|---|---|
| Preferred label | [Hediste diversicolor], [Macoma balthica] and [Scrobicularia plana] in littoral sandy mud | 
| Definition | Mainly mid shore mud or sandy mud subject to variable salinity on sheltered estuarine shores. Typically, the sediment is wet in appearance and has an anoxic layer below 1 cm depth. The surface of the mud has the distinctive 'crow's foot' pattern formed by the peppery furrow shell [Scrobicularia plana]. The infauna is additionally characterised by a range of polychaete and bivalve species, including the ragworm [Hediste diversicolor], [Pygospio elegans], [Streblospio shrubsolii], [Tharyx killariensis] and the baltic tellin [Macoma balthica]. Oligochaetes, most notably [Tubificoides benedii], and the spire shell [Hydrobia ulvae] may be abundant. Other species that sometimes occur in this biotope are the cockle [Cerastoderma edule], the sand gaper [Mya arenaria] and the polychaetes [Eteone longa] and [Nephtys hombergii]. Situation: HedMacScr may occur on the same shores as NhomMacStr, HedMac, NhomAph, Hed.Str and Hed.Cvol. Higher up on the shore, and/or further towards the head of the estuary, Hed.Ol may occur, changing to Tben at the upper extreme of the estuary. Temporal variation: [Enteromorpha] spp. and [Ulva lactuca] may form mats on the surface of the mud during the summer months, particularly in areas of nutrient enrichment. | 
| Notation | A2.313 | 
| Status | Valid | 
| Status Modified | 2014-01-31 | 
| Accepted Date | 2014-01-31 | 
| Not Accepted Date | |
| Has broader | |
| Has exact match | 
European Environment Agency
                        
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