Nephtys cirrosa-dominated littoral fine sand

English name: Nephtys cirrosa-dominated littoral fine sand

Description (English)

This biotope occurs mainly on the mid and lower shore on moderately wave-exposed and sheltered coasts, with medium to fine clean sand which remains damp throughout the tidal cycle and contains little organic matter. The sediment is not usually well sorted and may contain a fraction of coarse sand. It is often rippled and typically lacks an anoxic sub-surface layer. The polychaete infauna is dominated by Nephtys cirrosa, Magelona mirabilis, Spio martinensis, Spiophanes bombyx and Paraonis fulgens. The presence of polychaetes may be seen as coloured burrows running down from the surface of the sediment. Nemertean worms may be present. The amphipods Pontocrates spp. and Bathyporeia spp., as well as Cumopsis goodsiri and the shrimp Crangon crangon are typically present. The bivalve Angulus tenuis is scarce or absent.
Situation: This unit may be present higher up on the shore than unit A2.2312, or lower down than A2.2232or A2.2221.
Temporal variation: The infaunal community of this biotope may change seasonally, as increased storminess during winter months may reduce sediment stability and the ability of some species to survive. Some species, such as the shrimp C. crangon avoid these conditions by seasonal migration to deeper water (Moore, 1991).

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A2.2313
Bern Convention Included in a Resolution 4 habitat type at a higher level (A2.2)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Crangon crangon
Invertebrates Magelona mirabilis
Invertebrates Nephtys cirrosa
Invertebrates Spio martinensis
Invertebrates Spiophanes bombyx
Species scientific name English common name Species group
Crangon crangon Invertebrates
Magelona mirabilis Invertebrates
Nephtys cirrosa Invertebrates
Spio martinensis Invertebrates
Spiophanes bombyx Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 LS.LSa.FiSa.Po.Ncir <I>Nephtys cirrosa</I>-dominated littoral fine sand source
CORINE Land Cover 4.2.3. Intertidal flats n/a
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 200410 A2.2313 Nephtys cirrosa-dominated littoral fine sand same
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