Infralittoral fine mud

English name: Infralittoral fine mud

Description (English)

Shallow sublittoral muds, extending from the extreme lower shore to about 15-20 m depth in fully marine or near marine conditions, predominantly in extremely sheltered areas with very weak tidal currents. Such habitats are found in sealochs and some rias and harbours. Populations of the lugworm Arenicola marina may be dense, with anemones, the opisthobranch Philine aperta and synaptid holothurians also characteristic in some areas. The extent of the oxidised layer may be shallow with some areas being periodically or permanently anoxic. In these areas bacterial mats may develop on the sediment surface. Infaunal records for this habitat type are limited encompassing only one biotope. They are therefore not representative of the full suite of infaunal species found in this biotope.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A5.34
Bern Convention Included in a Resolution 4 habitat type at a higher level (A5)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Arenicola marina
Invertebrates Philine aperta
Species scientific name English common name Species group
Arenicola marina Invertebrates
Philine aperta Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 SS.SMu.IFiMu Infralittoral fine mud source
CORINE Land Cover 5.2.3. Sea and ocean n/a
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 200410 A5.34 Infralittoral fine mud same
EUNIS Habitat Classification 200308 A4.31 Shallow fully marine mud communities wider
EUNIS Habitat Classification 200202 A4.31 Shallow fully marine mud communities wider
EUNIS Habitat Classification 199910 A4.31 Shallow marine mud communities wider
EUNIS Habitat Classification 199811 A4.31 Shallow marine mud communities wider
MNCR BioMar 97.06 (Britain & Ireland) IMU.MarMu Shallow marine mud communities wider
European Environment Agency (EEA)
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