EUNIS habitat classification 2012 amended 2019 > A - Marine habitats > A1 - Littoral rock and other hard substrata > A1.1 - High energy littoral rock > A1.12 - Robust fucoid and/or red seaweed communities > A1.122 - Corallina officinalis on exposed to moderately exposed lower eulittoral rock > A1.1222 - Corallina officinalis, Himanthalia elongata and Patella ulyssiponensis on very exposed lower eulittoral rock

Corallina officinalis, Himanthalia elongata and Patella ulyssiponensis on very exposed lower eulittoral rock

English name: Corallina officinalis, Himanthalia elongata and Patella ulyssiponensis on very exposed lower eulittoral rock

Description (English)

Very exposed to exposed lower eulittoral bedrock shores in the south-west can support a dense turf of the red seaweed Corallina officinalis found underneath the long erect fronds of the wrack Himanthalia elongata. The rock surface is pitted with the limpet Patella ulyssiponensis. Also found on the bedrock is the barnacle Chthamalus stellatus or the limpet Patella vulgata, while numerous cracks and crevices provide shelter for anemones such as Actinia equina or the mussel Mytilus edulis. Other turf-forming red seaweeds include Lomentaria articulata, Mastocarpus stellatus, Palmaria palmata, Gastroclonium ovatum, Ceramium spp. and Osmundea pinnatifida which can be found along with the kelp Laminaria digitata. Foliose green seaweeds such as Enteromorpha intestinalis and Ulva lactuca may also be present along with siphonous Codium spp. Sponges such as Grantia compressa, Halichondria panicea and Hymeniacidon perleve may be present in shaded areas. The brown seaweed Bifurcaria bifurcata and the barnacle Balanus perforatus may occur in the extreme south-west.
Situation: This community usually forms a distinct band just above the kelp zone (A3.111, A3.1112 or A3.211). It can be found below the barnacle and P. vulgata dominated biotopes (A1.112; A1.113 or A1.1132).
Temporal variation: There might be some fluctuations in the abundance of the individual species from year to year, which reverts this biotope into either A1.1221 or A1.123 .

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A1.1222

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Actinia equina
Invertebrates Balanus perforatus
Algae Bifurcaria bifurcata
Invertebrates Chthamalus stellatus
Algae Corallina officinalis
Algae Enteromorpha intestinalis
Algae Gastroclonium ovatum
Invertebrates Halichondria panicea
Algae Himanthalia elongata
Algae Laminaria digitata
Algae Lomentaria articulata
Algae Mastocarpus stellatus
Invertebrates Mytilus edulis
Algae Palmaria palmata
Invertebrates Patella ulyssiponensis
Invertebrates Patella vulgata
Algae Ulva lactuca
Species scientific name English common name Species group
Actinia equina Invertebrates
Balanus perforatus Invertebrates
Bifurcaria bifurcata Algae
Chthamalus stellatus Invertebrates
Corallina officinalis Algae
Enteromorpha intestinalis Algae
Gastroclonium ovatum Algae
Halichondria panicea Invertebrates
Himanthalia elongata Algae
Laminaria digitata Algae
Lomentaria articulata Algae
Mastocarpus stellatus Algae
Mytilus edulis Invertebrates
Palmaria palmata Algae
Patella ulyssiponensis Invertebrates
Patella vulgata Invertebrates
Ulva lactuca Algae

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 LR.HLR.FR.Coff.Puly <I>Corallina officinalis</I>, <I>Himanthalia elongata</I> and <I>Patella ulyssiponensis</I> on very exposed lower 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 A1.1222 Corallina officinalis, Himanthalia elongata and Patella ulyssiponensis on very exposed lower eulittoral rock same
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