EUNIS habitat classification 2012 amended 2019 > A - Marine habitats > A2 - Littoral sediment > A2.3 - Littoral mud > A2.32 - Polychaete/oligochaete-dominated upper estuarine mud shores > A2.321 - Nephtys hombergii and Streblospio shrubsolii in littoral mud

Nephtys hombergii and Streblospio shrubsolii in littoral mud

English name: Nephtys hombergii and Streblospio shrubsolii in littoral mud

Description (English)

Soft wet mud with a fine sand fraction, on the mid and lower shore of sheltered estuaries, usually with an anoxic layer present within the first 5 cm of the sediment. The infauna is relatively poor, dominated by the polychaetes Nephtys hombergii, Streblospio shrubsolii, and Aphelochaeta marioni. The oligochaete Tubificoides benedii is also characterising for this biotope, and Hediste diversicolor may be common.
Situation: This unit may occur on the same shores as the A2.31 biotopes, A2.3222 or A2.3221. Higher up on the shore, and/or further towards the head of the estuary, A2.3223 may occur, changing to A2.323 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.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A2.321
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 Aphelochaeta marioni
Invertebrates Nephtys hombergii
Invertebrates Streblospio shrubsolii
Invertebrates Tubificoides benedii
Species scientific name English common name Species group
Ulva lactuca Algae
Aphelochaeta marioni Invertebrates
Nephtys hombergii Invertebrates
Streblospio shrubsolii Invertebrates
Tubificoides benedii Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 LS.LMu.UEst.NhomStr <I>Nephtys hombergii</I> and <I>Streblospio shrubsolii</I> in littoral 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 A2.321 Nephtys hombergii and Streblospio shrubsolii in littoral 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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