Phymatolithon calcareum maerl beds with red seaweeds in shallow infralittoral clean gravel or coarse sand
Description (English)
Upper infralittoral maerl beds characterised by Phymatolithon calcareum in gravels and sand with a wide variety of associated red seaweeds. These algae typically include Dictyota dichotoma, Plocamium cartilagineum, Phycodrys rubens, Chondrus crispus, Halarachnion ligulatum, Chylocladia verticillata, Hypoglossum hypoglossoides and Nitophyllum punctum. These species are not restricted to maerl beds but their abundance on maerl beds differentiates this biotope from A5.5112. Anthozoans and echinoderms are much less common in this biotope than in A5.5112, which typically occurs deeper than A5.5111.
Source: EUNIS habitat classification
Quick facts
| EUNIS habitat type | code A5.5111 |
|---|---|
| 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
Algae
Chondrus crispus
Algae
Chylocladia verticillata
Algae
Dictyota dichotoma
Algae
Halarachnion ligulatum
Algae
Hypoglossum hypoglossoides
Algae
Phycodrys rubens
Algae
Phymatolithon calcareum
Algae
Plocamium cartilagineum
| Species scientific name | English common name | Species group |
|---|---|---|
| Chondrus crispus | Algae | |
| Chylocladia verticillata | Algae | |
| Dictyota dichotoma | Algae | |
| Halarachnion ligulatum | Algae | |
| Hypoglossum hypoglossoides | Algae | |
| Phycodrys rubens | Algae | |
| Phymatolithon calcareum | Algae | |
| Plocamium cartilagineum | Algae |
Other classifications
| Classification | Code | Habitat type name | Relationship type |
|---|---|---|---|
| Marine Habitat Classification Britain/Ireland 0405 | SS.SMp.Mrl.Pcal.R | <I>Phymatolithon calcareum</I> maerl beds with red seaweeds in shallow infralittoral clean gravel or coarse sand | source |
| CORINE Land Cover | 5.2.3. | Sea and ocean | n/a |
History
| Classification | Code | Habitat type name | Relationship type |
|---|---|---|---|
| EUNIS Habitat Classification 200410 | A5.5111 | Phymatolithon calcareum maerl beds with red seaweeds in shallow infralittoral clean gravel or coarse sand | same |
| EUNIS Habitat Classification 200308 | A4.6111 | Phymatolithon calcareum maerl beds with red seaweeds in shallow infralittoral clean gravel or coarse sand | same |
| EUNIS Habitat Classification 200202 | A4.6111 | Phymatolithon calcareum maerl beds with red seaweeds in shallow infralittoral clean gravel or coarse sand | same |
| EUNIS Habitat Classification 199910 | A4.1111 | Phymatolithon calcareum maerl beds with red seaweeds in shallow infralittoral clean gravel or coarse sand | same |
| MNCR BioMar 97.06 (Britain & Ireland) | IGS.Mrl.Phy.R | Phymatolithon calcareum maerl beds with red seaweeds in shallow infralittoral clean gravel or coarse sand | same |
