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

Corallina officinalis on exposed to moderately exposed lower eulittoral rock

English name: Corallina officinalis on exposed to moderately exposed lower eulittoral rock

Description (English)

Very exposed to moderately exposed lower eulittoral rock that supports a dense turf of the red seaweed Corallina officinalis, often on wave surged rocky slopes. There is usually a low abundance of other turf-forming red seaweeds including Lomentaria articulata, Mastocarpus stellatus, Palmaria palmata and Osmundea pinnatifida. Other seaweeds that occur in low abundance includes the wrack Himanthalia elongata, Laminaria digitata while the brown seaweed Leathesia difformis can be found growing on and around the other seaweeds. The green seaweeds Enteromorpha intestinalis, Ulva lactuca and Cladophora rupestris are present as well. A number of invertebrates are present on the bedrock underneath the coralline turf, including the barnacle Semibalanus balanoides, the mussel Mytilus edulis, the sponges Halichondria panicea and Hymeniacidon perleve, the anemone Actinia equina and the limpets Patella ulyssiponensis and Patella vulgata. The brown seaweed Bifurcaria bifurcata and the barnacle Balanus perforatus may occur in the extreme south-west. Two variants have been described: C. officinalis and kelp (A1.1221) and C. officinalis, H. elongata and the limpet P. ulyssiponensis (A1.1222).
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; A1.1132).

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A1.122

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

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

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 LR.HLR.FR.Coff <I>Corallina officinalis</I> on exposed to moderately 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 A1.122 Corallina officinalis on exposed to moderately exposed lower eulittoral rock same
EUNIS Habitat Classification 200308 A1.122 Corallina officinalis on exposed to moderately exposed lower eulittoral rock same
EUNIS Habitat Classification 200202 A1.122 Corallina officinalis on very exposed lower eulittoral rock same
EUNIS Habitat Classification 199910 A1.122 Corallina officinalis on very exposed lower eulittoral rock same
MNCR BioMar 97.06 (Britain & Ireland) ELR.FR.Coff Corallina officinalis on very exposed lower eulittoral rock same
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