EUNIS habitat classification 2012 > A - Marine habitats > A1 - Littoral rock and other hard substrata > A1.3 - Low energy littoral rock > A1.32 - Fucoids in variable salinity > A1.323 - Fucus vesiculosus on variable salinity mid eulittoral boulders and stable mixed substrata

Fucus vesiculosus on variable salinity mid eulittoral boulders and stable mixed substrata

English name: Fucus vesiculosus on variable salinity mid eulittoral boulders and stable mixed substrata

Description (English)

Sheltered to extremely sheltered mid eulittoral pebbles and cobbles lying on sediment subject to variable salinity and characterised by the wrack Fucus vesiculosus. The wrack Ascophyllum nodosum can occasionally be found on larger boulders, while the barnacles Semibalanus balanoides and Elminius modestus and the mussel Mytilus edulis can be present on cobbles. Winkles, particularly Littorina littorea, commonly graze on the seaweeds, while Littorina saxatilis can be found in crevices. Ephemeral seaweeds such as Enteromorpha intestinalis can occupy available space. Patches of sediment found between the hard substrata often contains the lugworm Arenicola marina or the sand mason Lanice conchilega, while the crab Carcinus maenas, gammarids and amphipods occur on and under cobbles.
Situation: This unit can be found below the biotope dominated by the wracks Fucus spiralis or Fucus ceranoides (units A1.3122; A1.327) or a community dominated by S. balanoides, P. vulgata and L. littorea (A2.431). It is found above a community dominated by M. edulis (A1.111) or the wrack Fucus serratus (A1.326).
Temporal variation: Some variation in the ephemeral seaweeds and their abundance depending on the season is likely.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A1.323

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Arenicola marina
Algae Ascophyllum nodosum
Invertebrates Carcinus maenas
Invertebrates Elminius modestus
Algae Enteromorpha intestinalis
Algae Fucus ceranoides
Algae Fucus serratus
Algae Fucus spiralis
Algae Fucus vesiculosus
Invertebrates Lanice conchilega
Invertebrates Littorina littorea
Invertebrates Littorina saxatilis
Invertebrates Mytilus edulis
Invertebrates Semibalanus balanoides
Species scientific name English common name Species group
Arenicola marina Invertebrates
Ascophyllum nodosum Algae
Carcinus maenas Invertebrates
Elminius modestus Invertebrates
Enteromorpha intestinalis Algae
Fucus ceranoides Algae
Fucus serratus Algae
Fucus spiralis Algae
Fucus vesiculosus Algae
Lanice conchilega Invertebrates
Littorina littorea Invertebrates
Littorina saxatilis Invertebrates
Mytilus edulis Invertebrates
Semibalanus balanoides Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 LR.LLR.FVS.FvesVS <I>Fucus vesiculosus</I> on variable salinity mid eulittoral boulders and stable mixed substrata 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 A1.323 Fucus vesiculosus on variable salinity mid eulittoral boulders and stable mixed substrata same
EUNIS Habitat Classification 200308 A1.313 Fucus vesiculosus on sheltered mid eulittoral rock wider
EUNIS Habitat Classification 200202 A1.313 Fucus vesiculosus on sheltered mid eulittoral rock same
EUNIS Habitat Classification 199910 A1.313 Fucus vesiculosus on sheltered mid eulittoral rock same
MNCR BioMar 97.06 (Britain & Ireland) SLR.F.Fves Fucus vesiculosus on sheltered mid eulittoral rock same
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