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 > A5.523 - Laminaria saccharina with Psammechinus miliaris and/or Modiolus modiolus on variable salinity infralittoral sediment

Laminaria saccharina with Psammechinus miliaris and/or Modiolus modiolus on variable salinity infralittoral sediment

English name: Laminaria saccharina with Psammechinus miliaris and/or Modiolus modiolus on variable salinity infralittoral sediment

Description (English)

Shallow kelp community found on stoney mixed sediment, in full or variable salinity, in sheltered or moderately exposed conditions, with weak or very weak tidal currents. The community is characterised by a dense covering of Laminaria saccharina. Beneath the kelp canopy, frequent Psammechinus miliaris may be found grazing the algal turf and scattered Modiolus modiolus are characteristic of this biotope. Encrusting the suface of stones and pebbles are Pomatoceros triqueter and in the sediment between the stones, the burrowing anemone Cerianthus lloydii may also be present. Small patches of Lithothamnion glaciale may be found in this biotope, although these patches do not form distinct beds as in A5.512. In addition, a more ubiquitous fauna such as Asterias rubens and Pagurus bernhardus are also present. This biotope is generally found in sealochs.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A5.523
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 Laminaria saccharina
Algae Lithothamnion glaciale
Invertebrates Asterias rubens
Invertebrates Modiolus modiolus
Invertebrates Pagurus bernhardus
Invertebrates Pomatoceros triqueter
Invertebrates Psammechinus miliaris
Species scientific name English common name Species group
Laminaria saccharina Algae
Lithothamnion glaciale Algae
Asterias rubens Invertebrates
Modiolus modiolus Invertebrates
Pagurus bernhardus Invertebrates
Pomatoceros triqueter Invertebrates
Psammechinus miliaris Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 SS.SMp.KSwSS.LsacMxVS <I>Laminaria saccharina</I> with <I>Psammechinus miliaris</I> and/or <I>Modiolus modiolus</I> on variable salinity infralittoral mixed 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 A5.523 Laminaria saccharina with Psammechinus miliaris and/or Modiolus modiolus on variable salinity infralittoral sediment same
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