Echinoderms and crustose communities on circalittoral rock

English name: Echinoderms and crustose communities on circalittoral rock

Description (English)

This habitat type occurs on wave-exposed, moderately strong to weakly tide-swept, circalittoral bedrock and boulders. Echinoderms, faunal (Parasmittina trispinosa) and algal crusts (red encrusting algae) dominate this biotope, giving a sparse appearance. Typical echinoderms present are the starfish Asterias rubens, the brittlestar Ophiothrix fragilis and the sea urchin Echinus esculentus. There may be isolated clumps of the hydroids Nemertesia antennina and Abietinaria abietina, Alcyonium digitatum, the anemone Urticina felina and the cup coral Caryophyllia smithii. Other species present may include the polychaete Pomatoceros triqueter and the top shell Calliostoma zizphinum.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A4.21
Bern Convention Included in a Resolution 4 habitat type at a higher level (A4)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Abietinaria abietina
Invertebrates Alcyonium digitatum
Invertebrates Asterias rubens
Invertebrates Caryophyllia smithii
Invertebrates Echinus esculentus
Invertebrates Nemertesia antennina
Invertebrates Ophiothrix fragilis
Invertebrates Parasmittina trispinosa
Invertebrates Pomatoceros triqueter
Invertebrates Urticina felina
Species scientific name English common name Species group
Abietinaria abietina Invertebrates
Alcyonium digitatum Invertebrates
Asterias rubens Invertebrates
Caryophyllia smithii Invertebrates
Echinus esculentus Invertebrates
Nemertesia antennina Invertebrates
Ophiothrix fragilis Invertebrates
Parasmittina trispinosa Invertebrates
Pomatoceros triqueter Invertebrates
Urticina felina Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 CR.MCR.EcCr Echinoderms and crustose communities source
CORINE Land Cover 5.2.3. Sea and ocean n/a
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 200410 A4.21 Echinoderms and crustose communities on circalittoral rock same
EUNIS Habitat Classification 200308 A3.62 Sand-influenced bryozoan and hydroid turfs on moderately exposed circalittoral rock overlap
EUNIS Habitat Classification 200308 A3.66 Grazed faunal communities on moderately exposed or sheltered circalittoral rock narrower
EUNIS Habitat Classification 200308 A3.52 Alcyonium-dominated communities on tide-swept circalittoral rock overlap
EUNIS Habitat Classification 200308 A3.65 Brittlestar beds on circalittoral rock or mixed substrata narrower
EUNIS Habitat Classification 200202 A3.52 Alcyonium-dominated communities on tide-swept circalittoral rock overlap
EUNIS Habitat Classification 200202 A3.65 Brittlestar beds on circalittoral rock or mixed substrata narrower
EUNIS Habitat Classification 200202 A3.62 Sand-influenced bryozoan and hydroid turfs on moderately exposed circalittoral rock overlap
EUNIS Habitat Classification 200202 A3.66 Grazed faunal communities on moderately exposed or sheltered circalittoral rock narrower
EUNIS Habitat Classification 199910 A3.62 Sand-influenced bryozoan and hydroid turfs on moderately exposed circalittoral rock overlap
EUNIS Habitat Classification 199910 A3.66 Grazed faunal communities on moderately exposed or sheltered circalittoral rock narrower
EUNIS Habitat Classification 199910 A3.52 Alcyonium-dominated communities on tide-swept circalittoral rock overlap
EUNIS Habitat Classification 199910 A3.65 Brittlestar beds on circalittoral rock or mixed substrata narrower
EUNIS Habitat Classification 199811 A3.62 Ophiothrix fragilis and Ophiocomina nigra beds on slightly tide-swept circalittoral rock and mixed substrata overlap
EUNIS Habitat Classification 199811 A3.66 Grazed fauna on moderately exposed or sheltered circalittoral rock narrower
EUNIS Habitat Classification 199811 A3.52 Alcyonium-dominated communities on tide-swept circalittoral rock overlap
EUNIS Habitat Classification 199811 A3.64 Sand- and silt-influenced faunal communities on moderately exposed circalittoral rock narrower
EUNIS Habitat Classification 199712 A5.12 Alcyonium-dominated communities on tide-swept circalittoral rock overlap
EUNIS Habitat Classification 199712 A5.24 Sand- and silt-influenced faunal communities on moderately exposed circalittoral rock overlap
EUNIS Habitat Classification 199712 A5.22 Brittlestar beds on slightly tide-swept circalittoral rock and mixed substrata overlap
MNCR BioMar 97.06 (Britain & Ireland) MCR.GzFa Grazed fauna (moderately exposed or sheltered rock) overlap
MNCR BioMar 97.06 (Britain & Ireland) MCR.ByH Bryozoan/hydroid turfs (sand-influenced) overlap
MNCR BioMar 97.06 (Britain & Ireland) ECR.Alc Alcyonium-dominated communities (tide-swept/vertical) overlap
MNCR BioMar 97.06 (Britain & Ireland) MCR.Bri Brittlestar beds overlap
MNCR BioMar 96.7 (Britain & Ireland) ECR.Alc   overlap
MNCR BioMar 96.7 (Britain & Ireland) MCR.Oph   overlap
MNCR BioMar 96.7 (Britain & Ireland) MCR.FaSnd   overlap
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