Infralittoral Atlantic mobile sand in variable salinity

Description (English)

Very mobile sand in areas of strong tidal currents and variable salinity. No stable community is able to develop within this extremely mobile and abrasive habitat. The fauna encountered in this habitat consists of epifaunal crustaceans or relatively low numbers of robust species, such as the isopod Eurydice pulchra or Mesopodopsis slabberi. The polychaete Capitella capitata may occur frequently in some areas. Other taxa such as the polychaetes Eteone spp. and Arenicola marina, the mysid Neomysis integer and the amphipods Bathyporeia spp. and Haustorius arenarius may also be washed in from adjacent communities. This biotope is found in tidal channels of estuaries and areas where water movement keeps silt and mud in suspension, and excludes even the more robust infauna. If oligochaetes, polychaetes and bivalves are present in any numbers within this habitat type then care must be taken to avoid the inclusion of juvenile or spat recruitment counts which may mask the presence of this biotope. This is particularly relevant as sampling usually occurs at slack water periods when settlement takes place

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code MB5241
Relation to Resolution 4 habitat type (used for designation of Emerald sites)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Capitella capitata
Invertebrates Haustorius arenarius
Species scientific name English common name Species group
Capitella capitata Invertebrates
Haustorius arenarius Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 2007 (revised descriptions 2012) A5.221 Infralittoral mobile sand in variable salinity (estuaries) same
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type Comment
EUNIS Habitat Classification 200410 A5.221 Infralittoral mobile sand in variable salinity (estuaries) same
EUNIS Habitat Classification 200308 A4.241 Infralittoral mobile sand in variable salinity (estuaries) same
EUNIS Habitat Classification 200202 A4.241 Sparse fauna in reduced salinity shallow-water mobile sand same
EUNIS Habitat Classification 199910 A4.241 Sparse fauna in reduced salinity shallow-water mobile sand same
MNCR BioMar 97.06 (Britain & Ireland) IGS.EstGS.MobRS Sparse fauna in reduced salinity infralittoral mobile sand same
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