EUNIS habitat classification 2012 amended 2019 > A - Marine habitats > A2 - Littoral sediment > A2.3 - Littoral mud > A2.31 - Polychaete/bivalve-dominated mid estuarine mud shores > A2.311 - Nephtys hombergii, Macoma balthica and Streblospio shrubsolii in littoral sandy mud

Nephtys hombergii, Macoma balthica and Streblospio shrubsolii in littoral sandy mud

English name: Nephtys hombergii, Macoma balthica and Streblospio shrubsolii in littoral sandy mud

Description (English)

Soft mud with a fine sand fraction, in variable salinity conditions, typically close to the head of estuaries. The infauna is dominated by the polychaete worm Streblospio shrubsolii, the polychaete Nephtys hombergii, oligochaetes of the genus Tubificoides, and the Baltic tellin Macoma balthica. The ragworm Hediste diversicolor and the spire shell Hydrobia ulvae are often common or abundant.
Situation: This unit occurs in mid estuary conditions, usually on the low shore. Units A2.323 and A2.3223 may occur higher up the shore, as well as further towards the upper 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.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A2.311
Bern Convention Included in a Resolution 4 habitat type at a higher level (A2.3)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Algae Ulva lactuca
Invertebrates Hydrobia ulvae
Invertebrates Macoma balthica
Invertebrates Nephtys hombergii
Invertebrates Streblospio shrubsolii
Species scientific name English common name Species group
Ulva lactuca Algae
Hydrobia ulvae Invertebrates
Macoma balthica Invertebrates
Nephtys hombergii Invertebrates
Streblospio shrubsolii Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 LS.LMu.MEst.NhomMacStr <I>Nephtys hombergii</I>, <I>Macoma balthica</I> and <I>Streblospio shrubsolii</I> in littoral sandy mud source
CORINE Land Cover 4.2.3. Intertidal flats n/a
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 200410 A2.311 Nephtys hombergii, Macoma balthica and Streblospio shrubsolii in littoral sandy mud same
EUNIS Habitat Classification 200308 A2.372 Hediste diversicolor and Streblospio shrubsolii in sandy mud or soft mud shores overlap
EUNIS Habitat Classification 200202 A2.372 Hediste diversicolor and Streblospio shrubsolii in sandy mud or soft mud shores overlap
EUNIS Habitat Classification 199910 A2.322 Hediste diversicolor and Streblospio shrubsolii in sandy mud or soft mud shores overlap
MNCR BioMar 97.06 (Britain & Ireland) LMU.Mu.HedStr Hediste diversicolor and Streblospio shrubsolii in sandy mud or soft mud shores overlap
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