Fucus serratus on full salinity sheltered lower eulittoral rock

English name: Fucus serratus on full salinity sheltered lower eulittoral rock

Quick facts

EUNIS habitat type code A1.3151

Description (English)

Sheltered lower eulittoral rock subject to fully marine conditions characterised by a dense canopy of the wrack Fucus serratus. There is a wide range of associated species found on the surface of the rock underneath the canopy, including the barnacle Semibalanus balanoides, limpets Patella vulgata, winkles Littorina littorea, and even mussels Mytilus edulis can be present in cracks and crevices. These species are usually found in higher abundance further up on the shore. There may also be a number of other seaweeds present, including the red Corallina officinalis and Mastocarpus stellatus, the wrack Fucus vesiculosus and the green Enteromorpha intestinalis, Ulva lactuca or Cladophora rupestris, though these usually are present in low numbers if present at all. The sponge Halichondria panicea can be present underneath the F. serratus canopy in moist cracks or minor overhangs. Polychaetes such as Pomatoceros triqueter and Spirorbis spp. are present in their white calcareous tubes on the rock.
Situation: This biotope usually occurs immediately below a Fucus vesiculosus-barnacle mosaic (unit A1.213) on moderately exposed shores or a dense canopy of F. vesiculosus (A1.313) or Ascophyllum nodosum (A1.3141) on sheltered shores; consequently low densities of these species (typically less than Frequent) may also occur in this biotope. The sub littoral fringe below on moderately exposed shores is dominated by the kelp Laminaria digitata (A3.211; A3.2112), while the kelp Laminaria saccharina may co-dominate on sheltered shores (A3.3131; A3.3121).
Temporal variation: Fluctuations from year to year in the abundance of the F. serratus and the red seaweeds due to e.g. severe storms may convert this biotope into either A1.2141 or into a red seaweed dominated biotope on moderately exposed shores.

Source: EUNIS habitat classification

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Algae Ascophyllum nodosum
Algae Cladophora rupestris
Algae Corallina officinalis
Algae Enteromorpha intestinalis
Algae Fucus serratus
Algae Fucus vesiculosus
Invertebrates Halichondria panicea
Algae Laminaria digitata
Algae Laminaria saccharina
Invertebrates Littorina littorea
Algae Mastocarpus stellatus
Invertebrates Mytilus edulis
Invertebrates Patella vulgata
Invertebrates Pomatoceros triqueter
Invertebrates Semibalanus balanoides
Algae Ulva lactuca
Species scientific name English common name Species group
Ascophyllum nodosum Algae
Cladophora rupestris Algae
Corallina officinalis Algae
Enteromorpha intestinalis Algae
Fucus serratus Algae
Fucus vesiculosus Algae
Halichondria panicea Invertebrates
Laminaria digitata Algae
Laminaria saccharina Algae
Littorina littorea Invertebrates
Mastocarpus stellatus Algae
Mytilus edulis Invertebrates
Patella vulgata Invertebrates
Pomatoceros triqueter Invertebrates
Semibalanus balanoides Invertebrates
Ulva lactuca Algae

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 LR.LLR.F.Fserr.FS <I>Fucus serratus</I> on full salinity sheltered 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 A1.3151 Fucus serratus on full salinity sheltered lower eulittoral rock same
EUNIS Habitat Classification 200202 A1.315 Fucus serratus on sheltered lower eulittoral rock same
EUNIS Habitat Classification 199910 A1.315 Fucus serratus on sheltered lower eulittoral rock same
MNCR BioMar 97.06 (Britain & Ireland) SLR.F.Fserr Fucus serratus on sheltered lower eulittoral rock same
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