EUNIS habitat classification 2012 amended 2019 > A - Marine habitats > A5 - Sublittoral sediment > A5.1 - Sublittoral coarse sediment > A5.13 - Infralittoral coarse sediment > A5.135 - Glycera lapidum in impoverished infralittoral mobile gravel and sand

Glycera lapidum in impoverished infralittoral mobile gravel and sand

English name: Glycera lapidum in impoverished infralittoral mobile gravel and sand

Description (English)

In infralittoral mixed slightly gravelly sands on exposed open coasts impoverished communities characterised by the polychaete Glycera lapidum (agg.) may be found. Glycera lapidum is a species complex and as such some variability in identification may be found in the literature. It is also quite widespread and may occur in a variety of coarser sediments and is often present in other A5.1 subunits. However, it is rarely considered a characteristic species and where this is the case it is normally due to the exclusion of other species. Consequently it is considered that habitats containing this biotope may be subject to continual or periodic sediment disturbance from wave action, which prevents the establishment of a more stable community. Other taxa include spionid polychaetes such as Spio martinensis and Spiophanes bombyx, Nephtys spp. and in some areas the bivalve Spisula elliptica. It is possible that A5.135 is not a true biotope, rather an impoverished, transitional community, which in more settled conditions develops into other more stable communities.
Situation: In many cases e.g. along the East Yorkshire coast this biotope is found in shallow inshore areas facing directly into the prevailing wind and subject to considerable wave action.
Temporal variation: Due to the variability in sediment regime at these habitats there may be high seasonal or spatial variability within this community.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A5.135
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 Glycera lapidum
Invertebrates Spio martinensis
Invertebrates Spiophanes bombyx
Invertebrates Spisula elliptica
Species scientific name English common name Species group
Glycera lapidum Invertebrates
Spio martinensis Invertebrates
Spiophanes bombyx Invertebrates
Spisula elliptica Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 SS.SCS.ICS.Glap <I>Glycera lapidum</I> in impoverished infralittoral mobile gravel and sand 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 A5.125 Glycera lapidum in impoverished infralittoral mobile gravel and sand same
EUNIS Habitat Classification 200308 A5.242 Spio filicornis and Spiophanes bombyx infralittoral clean or muddy sand wider
EUNIS Habitat Classification 200202 A4.252 Spio filicornis and Spiophanes bombyx infralittoral clean or muddy sand overlap
EUNIS Habitat Classification 199910 A4.262 Spio filicornis and Spiophanes bombyx infralittoral clean or muddy sand overlap
MNCR BioMar 97.06 (Britain & Ireland) IMS.FaMS.SpiSpi Spio filicornis and Spiophanes bombyx infralittoral clean or muddy sand overlap
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