EUNIS habitat classification 2017 > M - Marine benthic habitats > MB3 - Infralittoral coarse sediment > MB32 - Atlantic infralittoral coarse sediment > MB322 - Maerl beds on Atlantic infralittoral coarse sediment > MB3221 - Phymatolithon calcareum maerl beds in Atlantic infralittoral clean gravel or coarse sand > MB32212 - Phymatolithon calcareum maerl beds with Neopentadactyla mixta and other echinoderms in Atlantic infralittoral clean gravel or coarse sand

Phymatolithon calcareum maerl beds with Neopentadactyla mixta and other echinoderms in Atlantic infralittoral clean gravel or coarse sand

Description (English)

Lower infralittoral maerl beds characterised by Phymatolithon calcareum in gravels and sand with a variety of associated echinoderms. The echinoderm Neopentadactyla mixta is frequently observed in this biotope. Other echinoderms such as Echinus esculentus, Ophiura albida and rarely Luidia ciliaris may also be present. Red seaweed such as Plocamium cartilagineum may be present but at a much lower abundance than in MB3-2211 and with fewer species present. Other, more ubiquitous echinoderms such as Asterias rubens may also be found in low numbers throughout MB3-221 subunits.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code MB32212
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

Algae Phymatolithon calcareum
Algae Plocamium cartilagineum
Invertebrates Asterias rubens
Invertebrates Echinus esculentus
Invertebrates Luidia ciliaris
Invertebrates Neopentadactyla mixta
Invertebrates Ophiura albida
Species scientific name English common name Species group
Phymatolithon calcareum Algae
Plocamium cartilagineum Algae
Asterias rubens Invertebrates
Echinus esculentus Invertebrates
Luidia ciliaris Invertebrates
Neopentadactyla mixta Invertebrates
Ophiura albida Invertebrates

Other classifications

History

Classification Code Habitat type name Relationship type Comment
EUNIS Habitat Classification 200410 A5.5112 Phymatolithon calcareum maerl beds with Neopentadactyla mixta and other echinoderms in deeper infralittoral clean gravel or coarse sand same
EUNIS Habitat Classification 200308 A4.6112 Phymatolithon calcareum maerl beds with Neopentadactyla mixta and other echinoderms in deeper infralittoral clean gravel or coarse sand same
EUNIS Habitat Classification 200202 A4.6112 Phymatolithon calcareum maerl beds with hydroids and echinoderms in deeper infralittoral clean gravel or coarse sand same
EUNIS Habitat Classification 199910 A4.1112 Phymatolithon calcareum maerl beds with hydroids and echinoderms in deeper infralittoral clean gravel or coarse sand same
MNCR BioMar 97.06 (Britain & Ireland) IGS.Mrl.Phy.HEc Phymatolithon calcareum maerl beds with hydroids and echinoderms in deeper infralittoral clean gravel or coarse sand same
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