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Concept: [Hediste diversicolor] in littoral mud in the eunishabitats vocabulary

Concept URI http://eunis.eea.europa.eu/eunishabitats/A2.322
Preferred label [Hediste diversicolor] in littoral mud
Definition Mud and sandy mud shores in sheltered marine inlets and estuaries subject to variable or reduced salinity. The biotope is typically found on the mid and lower shores in the upper and mid estuary. If present on the upper shore, the sediment may become firm and compacted as water drains out, though usually the biotope occurs lower on the shore and the sediment remains water saturated during low tide. An anoxic layer occurs within the upper 5 cm of the sediment. The infauna is dominated by abundant or superabundant ragworms [Hediste diversicolor]. Other species that occur in a significant number of samples include oligochaetes such as [Heterochaeta costata] and [Tubificoides] spp., polychaetes such as [Streblospio shrubsolii] and [Manayunkia aestuarina], the mud shrimp [Corophium volutator], and the spire shell [Hydrobia ulvae]. Situation: Hed may occur on the same shores as HedMac, HedMacScr, or NhomAph. Higher up on the shore, and/or further towards the upper extreme of the estuary, Tben may occur. Temporal variation: [Enteromorpha] spp. and [Ulva lactuca] may form mats on the surface of the sediment during the summer months, particularly in areas of freshwater influence and/or where there is nutrient enrichment.
Notation A2.322
Status Valid
Status Modified 2014-01-31
Accepted Date 2014-01-31
Not Accepted Date
Has broader
Has narrower
Has exact match