EUNIS habitat classification 2012 amended 2019 > A - Marine habitats > A1 - Littoral rock and other hard substrata > A1.2 - Moderate energy littoral rock > A1.22 - Mussels and fucoids on moderately exposed shores > A1.221 - Mytilus edulis and Fucus vesiculosus on moderately exposed mid eulittoral rock

Mytilus edulis and Fucus vesiculosus on moderately exposed mid eulittoral rock

English name: Mytilus edulis and Fucus vesiculosus on moderately exposed mid eulittoral rock

Description (English)

Mid eulittoral exposed to moderately exposed bedrock, often with nearby sediment, covered by a dense band or large patches of the mussel Mytilus edulis. The community often supports scattered Fucus vesiculosus and occasional foliose red seaweeds such as Porphyra umbilicalis, Osmundea pinnatifida, Mastocarpus stellatus, Palmaria palmata or the calcareous algae Corallina officinalis . The ephemeral green seaweeds Enteromorpha intestinalis and Ulva lactuca commonly occur on the shells of the mussels. The barnacle Semibalanus balanoides is common on both the mussel valves and on patches of bare rock, where the limpet Patella vulgata also can be found. The whelk Nucella lapillus and the winkle Littorina littorea can be found within the mussel bed.
Situation: Above this biotope is a M. edulis and S. balanoides dominated biotope (unit A1.113) or a F. vesiculosus dominated biotope (unit A1.213). In the lower eulittoral zone below A1.221 is a biotope dominated by the wrack Fucus serratus, M. edulis and a higher diversity of red seaweeds (units A1.222; A1.2141).

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A1.221
Bern Convention Included in a Resolution 4 habitat type at a higher level (A1.22)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Algae Corallina officinalis
Algae Enteromorpha intestinalis
Algae Fucus vesiculosus
Invertebrates Littorina littorea
Algae Mastocarpus stellatus
Invertebrates Mytilus edulis
Invertebrates Nucella lapillus
Algae Osmundea pinnatifida
Algae Palmaria palmata
Invertebrates Patella vulgata
Algae Porphyra umbilicalis
Invertebrates Semibalanus balanoides
Algae Ulva lactuca
Species scientific name English common name Species group
Corallina officinalis Algae
Enteromorpha intestinalis Algae
Fucus vesiculosus Algae
Littorina littorea Invertebrates
Mastocarpus stellatus Algae
Mytilus edulis Invertebrates
Nucella lapillus Dog whelk Invertebrates
Osmundea pinnatifida Algae
Palmaria palmata Algae
Patella vulgata Invertebrates
Porphyra umbilicalis Algae
Semibalanus balanoides Invertebrates
Ulva lactuca Algae

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 LR.MLR.MusF.MytFves <I>Mytilus edulis</I> and <I>Fucus vesiculosus</I> on moderately exposed mid eulittoral rock 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 A1.221 Mytilus edulis and Fucus vesiculosus on moderately exposed mid eulittoral rock same
EUNIS Habitat Classification 200308 A1.251 Mytilus edulis and Fucus vesiculosus on moderately exposed mid eulittoral rock same
EUNIS Habitat Classification 200202 A1.251 Mytilus edulis and Fucus vesiculosus on moderately exposed mid eulittoral rock same
EUNIS Habitat Classification 199910 A1.241 Mytilus edulis and Fucus vesiculosus on moderately exposed mid eulittoral rock same
MNCR BioMar 97.06 (Britain & Ireland) MLR.MF.MytFves Mytilus edulis and Fucus vesiculosus on moderately exposed mid eulittoral rock same
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