EUNIS habitat classification 2012 amended 2019 > A - Marine habitats > A1 - Littoral rock and other hard substrata > A1.1 - High energy littoral rock > A1.15 - Fucoids in tide-swept conditions > A1.153 - Fucus serratus with sponges, ascidians and red seaweeds on tide-swept lower eulittoral mixed substrata

Fucus serratus with sponges, ascidians and red seaweeds on tide-swept lower eulittoral mixed substrata

English name: Fucus serratus with sponges, ascidians and red seaweeds on tide-swept lower eulittoral mixed substrata

Quick facts

EUNIS habitat type code A1.153

Description (English)

Sheltered lower shore boulders, cobbles and pebbles on muddy sediments that are subject to enhanced tidal water movement and characterised by a species rich community. Dominant species include the sponges Halichondria panicea and Hymeniacidon perleve, the sea squirts Ascidiella aspera, Ascidiella scabra, Styela clava and Botryllus schlosseri. A number of filamentous red seaweeds including Halurus flosculosus, Ceramium spp., Gracilaria gracilis, Polysiphonia fucoides and foliose seaweeds Mastocarpus stellatus and Chondrus crispus are usually present. The brown seaweed Dictyota dichotoma and the wrack Fucus serratus with colonies of the hydroid Dynamena pumila, and Ectocarpus sp. may be found on more stable substrata. Boulders and large cobbles provide substrata for the top shell Gibbula cineraria, the whelk Nucella lapillus and barnacles such as Semibalanus balanoides, Balanus crenatus, or in areas with variable salinity Elminius modestus, and the tube-forming polychaete Pomatoceros triqueter. Patches of sand or mud are often characterised by the polychaete Lanice conchilega and the polychaete Sabella pavonina. Aggregations of the mussel Mytilus edulis and, in southern and eastern England the limpet Crepidula fornicata, may be found attached to cobbles and pebbles. Sites in Scottish sea lochs may support maerl Lithothamnion spp. and bivalves Venerupis senegalensis (see also A5.433).
Situation: This biotope is found above a community dominated by kelp such as Laminaria digitata (A3.1112) or seagrass beds dominated by Zostera marina (A5.5331) depending on the substrata found below. It is found below biotopes dominated by wrack Fucus vesiculosus (A1.313) or M. edulis beds (A2.212).

Source: EUNIS habitat classification

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Ascidiella scabra
Invertebrates Balanus crenatus
Invertebrates Botryllus schlosseri
Algae Chondrus crispus
Invertebrates Crepidula fornicata
Algae Dictyota dichotoma
Invertebrates Dynamena pumila
Invertebrates Elminius modestus
Algae Fucus serratus
Algae Fucus vesiculosus
Invertebrates Gibbula cineraria
Algae Gracilaria gracilis
Invertebrates Halichondria panicea
Algae Halurus flosculosus
Algae Laminaria digitata
Invertebrates Lanice conchilega
Algae Mastocarpus stellatus
Invertebrates Mytilus edulis
Invertebrates Nucella lapillus
Algae Polysiphonia fucoides
Invertebrates Pomatoceros triqueter
Invertebrates Sabella pavonina
Invertebrates Semibalanus balanoides
Invertebrates Styela clava
Flowering Plants Zostera marina
Species scientific name English common name Species group
Ascidiella scabra Invertebrates
Balanus crenatus Invertebrates
Botryllus schlosseri Invertebrates
Chondrus crispus Algae
Crepidula fornicata Invertebrates
Dictyota dichotoma Algae
Dynamena pumila Invertebrates
Elminius modestus Invertebrates
Fucus serratus Algae
Fucus vesiculosus Algae
Gibbula cineraria Invertebrates
Gracilaria gracilis Algae
Halichondria panicea Invertebrates
Halurus flosculosus Algae
Laminaria digitata Algae
Lanice conchilega Invertebrates
Mastocarpus stellatus Algae
Mytilus edulis Invertebrates
Nucella lapillus Dog whelk Invertebrates
Polysiphonia fucoides Algae
Pomatoceros triqueter Invertebrates
Sabella pavonina Invertebrates
Semibalanus balanoides Invertebrates
Styela clava Invertebrates
Zostera marina Flowering Plants

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 LR.HLR.FT.FserTX <I>Fucus serratus</I> with sponges, ascidians and red seaweeds on tide-swept lower eulittoral 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 A1.153 Fucus serratus with sponges, ascidians and red seaweeds on tide-swept lower eulittoral mixed substrata same
EUNIS Habitat Classification 200202 A1.3241 Fucus serratus with sponges, ascidians and red seaweeds on tide-swept lower eulittoral mixed substrata same
EUNIS Habitat Classification 199910 A1.3241 Fucus serratus with sponges, ascidians and red seaweeds on tide-swept lower eulittoral mixed substrata same
MNCR BioMar 97.06 (Britain & Ireland) SLR.FX.FserX.T Fucus serratus with sponges, ascidians and red seaweeds on tide-swept lower eulittoral mixed substrata same
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