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 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 Gammarus zaddachi
Invertebrates Heterochaeta costata
Invertebrates Limnodrilus hoffmeisteri
Invertebrates Paranais litoralis
Invertebrates Tubifex tubifex
Species scientific name English common name Species group
Gammarus zaddachi Invertebrates
Heterochaeta costata Invertebrates
Limnodrilus hoffmeisteri Invertebrates
Paranais litoralis Invertebrates
Tubifex tubifex Invertebrates

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 Comment
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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