EUNIS habitat classification 2012 amended 2019 > A - Marine habitats > A5 - Sublittoral sediment > A5.6 - Sublittoral biogenic reefs > A5.61 - Sublittoral polychaete worm reefs on sediment > A5.612 - Sabellaria alveolata on variable salinity sublittoral mixed sediment

Sabellaria alveolata on variable salinity sublittoral mixed sediment

English name: Sabellaria alveolata on variable salinity sublittoral mixed sediment

Description (English)

Tide-swept sandy mixed sediments with cobbles and pebbles, in variable salinity or fully marine conditions, may be characterised by surface accumulations of the reef building polychaete Sabellaria alveolata. The presence of Sabellaria sp. has a strong influence on the associated infauna as the tubes bind the surface sediments together and provide increased stability. Such reefs may form large structures up to a metre in height although they are considerably less extensive than the intertidal reefs formed by this species (unit A2.711). Other associated species may include the polychaete Melinna cristata, itself often as dense aggregations, mobile surface feeding polychaetes including Typosyllis armillary and Eulalia tripunctata. Other polychaetes may include Mediomastus fragilis and Pygospio elegans whilst amphipods such as Harpinia pectinata and tubificid oligochaetes may also be found.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A5.612
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

Invertebrates Eulalia tripunctata
Invertebrates Harpinia pectinata
Invertebrates Mediomastus fragilis
Invertebrates Melinna cristata
Invertebrates Pygospio elegans
Invertebrates Sabellaria alveolata
Species scientific name English common name Species group
Eulalia tripunctata Invertebrates
Harpinia pectinata Invertebrates
Mediomastus fragilis Invertebrates
Melinna cristata Invertebrates
Pygospio elegans Invertebrates
Sabellaria alveolata Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 SS.SBR.PoR.SalvMx <I>Sabellaria alveolata</I> on variable salinity sublittoral 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 A5.612 Sabellaria alveolata on variable salinity sublittoral mixed sediment same
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