Mats of Trailliella on infralittoral muddy gravel
Description (English)
Dense loose-lying beds of the 'Trailliella' phase of Bonnemaisonia hamifera may occur in extremely sheltered shallow muddy environments. Beds of this alga are often 10 cm thick but may reach 100 cm at some sites. Other loose-lying algae may also occur such as Audouinella floridula, Phyllophora crispa and species of Derbesia. Often the mud is gravelly or with some cobbles and may be black and anoxic close to the sediment surface. This biotope is widely distributed in lagoons, sealochs and voes but should only be described as A5.526 when a continuous mat is found. It is likely that the infaunal component of this biotope may be considerably modified by the overwhelming quantity of loose-lying algae.
Source: EUNIS habitat classification
Quick facts
| EUNIS habitat type | code A5.526 |
|---|---|
| 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
Phyllophora crispa
| Species scientific name | English common name | Species group |
|---|---|---|
| Phyllophora crispa | Algae |
Other classifications
| Classification | Code | Habitat type name | Relationship type |
|---|---|---|---|
| Marine Habitat Classification Britain/Ireland 0405 | SS.SMp.KSwSS.Tra | Mats of <I>Trailliella</I> on infralittoral muddy gravel | source |
| CORINE Land Cover | 5.2.3. | Sea and ocean | n/a |
History
| Classification | Code | Habitat type name | Relationship type |
|---|---|---|---|
| EUNIS Habitat Classification 200410 | A5.526 | Mats of Trailliella on infralittoral muddy gravel | same |
| EUNIS Habitat Classification 200308 | A4.412 | Mats of Trailliella on infralittoral muddy gravel | same |
| EUNIS Habitat Classification 200202 | A4.412 | Mats of Trailliella on shallow-water muddy gravel | same |
| EUNIS Habitat Classification 199910 | A4.412 | Mats of Trailliella on shallow-water muddy gravel | same |
| MNCR BioMar 97.06 (Britain & Ireland) | IMX.KSwMx.Tra | Mats of Trailliella on infralittoral muddy gravel | same |
