Laminaria saccharina with red and brown seaweeds on lower infralittoral muddy mixed sediment

English name: Laminaria saccharina with red and brown seaweeds on lower infralittoral muddy mixed sediment

Description (English)

Slightly deeper kelp community in the lower infralittoral, found on sandy gravelly mud, in sheltered and very sheltered conditions, with very weak tidal currents. The community is characterised by occasional Laminaria saccharina with an undergrowth of red and brown algae. Characteristic red seaweeds, as with other A5.521 subunits include Plocamium cartilagineum and Phycodrys rubens. However, the sheltered conditions of this biotope allow the 'Trailliella' phase of Bonnemaisonia hamifera to develop (although not to the extent of forming distinct mats as in A5.526), and the related species Bonnemaisonia asparagoides. Brown algal species present, as with other A5.521 subunits, include Desmarestia spp at low abundance. The ubiquitous green seaweed Ulva sp. may also be present. The muddy substrate is home to a variety of typical mud dwelling fauna including the burrowing anemone Cerianthus lloydii. The gravelly component of this biotope provides a substrate for encrusting species such as the polychaete Pomatoceros triqueter and coralline encrusting algae.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A5.5214
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 Bonnemaisonia asparagoides
Algae Bonnemaisonia hamifera
Algae Laminaria saccharina
Algae Phycodrys rubens
Algae Plocamium cartilagineum
Invertebrates Pomatoceros triqueter
Species scientific name English common name Species group
Bonnemaisonia asparagoides Algae
Bonnemaisonia hamifera Algae
Laminaria saccharina Algae
Phycodrys rubens Algae
Plocamium cartilagineum Algae
Pomatoceros triqueter Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 SS.SMp.KSwSS.LsacR.Mu <I>Laminaria saccharina</I> with red and brown seaweeds on lower infralittoral muddy 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 A5.5214 Laminaria saccharina with red and brown seaweeds on lower infralittoral muddy mixed sediment same
EUNIS Habitat Classification 200308 A4.411 Laminaria saccharina, Chorda filum and filamentous red seaweeds on sheltered shallow-water sediment wider
EUNIS Habitat Classification 200202 A4.411 Laminaria saccharina, Chorda filum and filamentous red seaweeds on sheltered shallow-water sediment overlap
EUNIS Habitat Classification 199910 A4.411 Laminaria saccharina, Chorda filum and filamentous red seaweeds on sheltered shallow-water sediment overlap
MNCR BioMar 97.06 (Britain & Ireland) IMX.KSwMx.LsacX Laminaria saccharina, Chorda filum and filamentous red seaweeds on sheltered infralittoral sediment overlap
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