EUNIS habitat classification 2017 > M - Marine benthic habitats > MB6 - Infralittoral mud > MB62 - Atlantic infralittoral mud > MB625 - Faunal communities on variable or reduced salinity Atlantic sublittoral mud > MB6257 - Limnodrilus hoffmeisteri, Tubifex tubifex and Gammarus spp. in low salinity Atlantic infralittoral muddy sediment

Limnodrilus hoffmeisteri, Tubifex tubifex and Gammarus spp. in low salinity Atlantic infralittoral muddy sediment

Description (English)

Upper estuary muddy sediments with very low fluctuating salinity, characterised by the oligochaetes Limnodrilus hoffmeisteri and Tubifex tubifex. Other taxa may include Marenzelleria wireni, Gammarus zaddachi, Paranais litoralis and Heterochaeta costata. The biotope contains elements of both freshwater and brackish communities.
Situation: This biotope is found in the transitional zone between the freshwater and brackish environments where tidal currents are sufficiently reduced to allow the deposition of fine silt and the establishment of an infaunal community. It may be found adjacent to MB5-243 away from the stronger tidal streams.
Temporal variation: The position of this biotope in the estuary may vary seasonally depending on freshwater input (Gameson, 1982).

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type	code MB6257
Relation to	Annex I habitat types (EU Habitats Directive)

Legal status

Relation to other habitat types mentioned in legal instruments

Legal text	Annex	Name in legal text	Code in legal text	Habitat type relationship	More information
Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora - consolidated version 01/01/2007	Annex I: natural habitat types of community interest whose conservation requires the designation of special areas of conservation	Estuaries	1130	Overlap	http://ec.europa.eu/environm...rective/index_en.htm
Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora - consolidated version 01/01/2007	Annex I: natural habitat types of community interest whose conservation requires the designation of special areas of conservation	Large shallow inlets and bays	1160	Overlap

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Not available

Other classifications

Classification	Code	Habitat type name	Relationship type
EUNIS Habitat Classification 2007 (revised descriptions 2012)	A5.327	Limnodrilus hoffmeisteri, Tubifex tubifex and Gammarus spp. in low salinity infralittoral muddy sediment	same

For relation to plant communities (syntaxa), see Vegetation types

History

Classification	Code	Habitat type name	Relationship type
EUNIS Habitat Classification 200410	A5.327	Limnodrilus hoffmeisteri, Tubifex tubifex and Gammarus spp. in low salinity infralittoral muddy sediment	same
EUNIS Habitat Classification 200308	A4.326	Limnodrilus hoffmeisteri, Tubifex tubifex and Gammarus spp. in low salinity infralittoral muddy sediment	same
EUNIS Habitat Classification 200202	A4.326	Limnodrilus hoffmeisteri, Tubifex tubifex and Gammarus spp. in low salinity infralittoral muddy sediment	same
EUNIS Habitat Classification 199910	A4.326	Limnodrilus hoffmeisteri, Tubifex tubifex and Gammarus spp. in low salinity infralittoral muddy sediment	same
MNCR BioMar 97.06 (Britain & Ireland)	IMU.EstMu.LimTtub	Limnodrilus hoffmeisteri, Tubifex tubifex and Gammarus spp. in low salinity infralittoral muddy sediment	same

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