Laminaria hyperborea and foliose red seaweeds on moderately exposed infralittoral rock

English name: Laminaria hyperborea and foliose red seaweeds on moderately exposed infralittoral rock

Quick facts

EUNIS habitat type code A3.214
Bern Convention Included in a Resolution 4 habitat type at a higher level (A3)

Description (English)

Moderately exposed infralittoral bedrock and boulders characterised by a canopy of the kelp Laminaria hyperborea beneath which is an under-storey of foliose red seaweeds and coralline crusts. Some red seaweeds can be found as epiphytes on the kelp stipes and include Delesseria sanguinea and Phycodrys rubens. Other red seaweeds present include the Plocamium cartilagineum, Callophyllis laciniata, Cryptopleura ramosa and the brown seaweeds Dictyota dichotoma and Cutleria multifida. The kelp fronds can be colonised by the hydroid Obelia geniculata or the bryozoans Membranipora membranacea. The echinoderm Antedon bifida, the ascidian Clavelina lepadiformis, the tube-building polychaete Pomatoceros triqueter, the anthozoans Alcyonium digitatum and Urticina felina can be found on the rock beneath the canopy. Mobile species often present include the gastropods Gibbula cineraria and Calliostoma zizyphinum and the echinoderms Echinus esculentus and Asterias rubens. Five variants has been described: Kelp forest (unit A3.2141), kelp park (unit A3.2142), grazed kelp forest (unit A3.2143), grazed kelp park (unit A3.2144) and kelp with Sabellaria spinulosa reefs (unit A3.2145). This suite of biotopes differs from the wave exposed L. hyperborea biotopes (KFaR) by having a lower diversity of cushion-forming faunal species. The foliose red seaweed component of the two suites of biotopes may also differ in composition with a tendency for A3.214 to include some more delicate filamentous species.

Source: EUNIS habitat classification

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Alcyonium digitatum
Invertebrates Antedon bifida
Invertebrates Asterias rubens
Invertebrates Calliostoma zizyphinum
Algae Callophyllis laciniata
Invertebrates Clavelina lepadiformis
Algae Cutleria multifida
Algae Delesseria sanguinea
Algae Dictyota dichotoma
Invertebrates Echinus esculentus
Invertebrates Gibbula cineraria
Algae Laminaria hyperborea
Invertebrates Membranipora membranacea
Invertebrates Obelia geniculata
Algae Phycodrys rubens
Algae Plocamium cartilagineum
Invertebrates Pomatoceros triqueter
Invertebrates Sabellaria spinulosa
Invertebrates Urticina felina
Species scientific name English common name Species group
Alcyonium digitatum Invertebrates
Antedon bifida Invertebrates
Asterias rubens Invertebrates
Calliostoma zizyphinum Invertebrates
Callophyllis laciniata Algae
Clavelina lepadiformis Invertebrates
Cutleria multifida Algae
Delesseria sanguinea Algae
Dictyota dichotoma Algae
Echinus esculentus Invertebrates
Gibbula cineraria Invertebrates
Laminaria hyperborea Algae
Membranipora membranacea Invertebrates
Obelia geniculata Invertebrates
Phycodrys rubens Algae
Plocamium cartilagineum Algae
Pomatoceros triqueter Invertebrates
Sabellaria spinulosa Invertebrates
Urticina felina Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 IR.MIR.KR.Lhyp <I>Laminaria hyperborea</I> and foliose red seaweeds on moderately exposed infralittoral rock source
CORINE Land Cover 5.2.3. Sea and ocean n/a
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 200410 A3.214 Laminaria hyperborea and foliose red seaweeds on moderately exposed infralittoral rock same
EUNIS Habitat Classification 200308 A3.212 Laminaria hyperborea and foliose red seaweeds on moderately exposed infralittoral rock same
EUNIS Habitat Classification 200202 A3.212 Laminaria hyperborea and foliose red seaweeds on moderately exposed infralittoral rock same
EUNIS Habitat Classification 199910 A3.212 Laminaria hyperborea and foliose red seaweeds on moderately exposed infralittoral rock same
MNCR BioMar 97.06 (Britain & Ireland) MIR.KR.Lhyp Laminaria hyperborea and foliose red seaweeds on moderately exposed infralittoral rock same
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