Laminaria saccharina and robust red algae on infralittoral gravel and pebble
Description (English)
Shallow kelp community found on gravel and gravelly sand in slightly less exposed areas than A5.5211 but in moderately strong tidal currents, and characterised by occasional Laminaria saccharina with an undergrowth of robust red seaweeds. Characteristic red seaweeds, as with A5.5211, include Plocamium cartilagineum, Halarachnion ligulatum and Brongniartella byssoides; however the greater stability of this biotope allows a slightly more diverse range of red seaweeds to become established including Polyides rotundus, Rhodophyllis divaricata, Delesseria sanguinea and Nitophyllum punctatum. Coralline encrusting algae may be found covering the larger pebbles. Laminaria hyperborea may also be present within this biotope, although at low densities. Other brown algal species present include Desmarestia spp., Dictyota dichotoma and Chorda filum, all at low abundance. The ubiquitous green seaweed Ulva sp. may be found attached to larger pebbles.
Source: EUNIS habitat classification
Quick facts
EUNIS habitat type | code A5.5212 |
---|---|
Bern Convention | Included in a Resolution 4 habitat type at a higher level (A5) |
Vegetation types
Relation to vegetation types (syntaxa)
Not availableSpecies mentioned in habitat description
Species scientific name | English common name | Species group |
---|---|---|
Delesseria sanguinea | Algae | |
Dictyota dichotoma | Algae | |
Laminaria hyperborea | Algae | |
Laminaria saccharina | Algae | |
Plocamium cartilagineum | Algae |
Other classifications
Classification | Code | Habitat type name | Relationship type |
---|---|---|---|
Marine Habitat Classification Britain/Ireland 0405 | SS.SMp.KSwSS.LsacR.Gv | <I>Laminaria saccharina</I> and robust red algae on infralittoral gravel and pebbles | source |
CORINE Land Cover | 5.2.3. | Sea and ocean | n/a |
History
Classification | Code | Habitat type name | Relationship type |
---|---|---|---|
EUNIS Habitat Classification 200410 | A5.5212 | Laminaria saccharina and robust red algae on infralittoral gravel and pebble | same |
EUNIS Habitat Classification 200308 | A3.235 | Ephemeral red seaweeds and kelps on tide-swept mobile infralittoral cobbles | wider |
EUNIS Habitat Classification 200202 | A3.235 | Ephemeral red seaweeds and kelps on tide-swept mobile infralittoral cobbles | overlap |
EUNIS Habitat Classification 199910 | A3.235 | Ephemeral red seaweeds and kelps on tide-swept mobile infralittoral cobbles | overlap |
MNCR BioMar 97.06 (Britain & Ireland) | MIR.SedK.EphR | Ephemeral red seaweeds and kelps on tide-swept mobile infralittoral cobbles | overlap |