EUNIS habitat classification 2012 amended 2019 > A - Marine habitats > A5 - Sublittoral sediment > A5.5 - Sublittoral macrophyte-dominated sediment > A5.52 - Kelp and seaweed communities on sublittoral sediment > A5.524 - Laminaria saccharina, Gracilaria gracilis and brown seaweeds on full salinity infralittoral sediment

Laminaria saccharina, Gracilaria gracilis and brown seaweeds on full salinity infralittoral sediment

English name: Laminaria saccharina, Gracilaria gracilis and brown seaweeds on full salinity infralittoral sediment

Description (English)

Shallow kelp community found on muddy sand, in moderately exposed or sheltered, fully marine conditions, with weak tidal currents. The community is characterised by a reasonable covering of Laminaria saccharina. Frequent Chorda filum may also form part of the canopy although not at the abundance in A5.522. Beneath the canopy the community is characterised by the red algae Gracilaria gracilis, and various brown algal species particularly Dictyota dichotoma. Other members of the understory may include a variety of other filamentous and foliose red algae in particular Ceramium nodulosum and the green alga Ulva. The muddy sand substrate supports a variety of faunal species including polychaetes (Lanice conchilega) and gastropods (Hinia reticulata).

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A5.524
Bern Convention Included in a Resolution 4 habitat type at a higher level (A5)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Algae Chorda filum
Algae Dictyota dichotoma
Algae Gracilaria gracilis
Algae Laminaria saccharina
Invertebrates Lanice conchilega
Species scientific name English common name Species group
Chorda filum Algae
Dictyota dichotoma Algae
Gracilaria gracilis Algae
Laminaria saccharina Algae
Lanice conchilega Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 SS.SMp.KSwSS.LsacGraFS <I>Laminaria saccharina</I>, <I>Gracilaria gracilis</I> and brown seaweeds on full salinity infralittoral sediment 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 A5.524 Laminaria saccharina, Gracilaria gracilis and brown seaweeds on full salinity infralittoral sediment same
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