EUNIS habitat classification 2017 > M - Marine benthic habitats > MC1 - Circalittoral rock > MC12 - Atlantic circalittoral rock > MC126 - Communities of Atlantic circalittoral caves and overhangs > MC1261 - Sponges, cup corals and anthozoans on shaded or overhanging Atlantic circalittoral rock

Sponges, cup corals and anthozoans on shaded or overhanging Atlantic circalittoral rock

Description (English)

This biotope occurs on shaded and overhanging rock, such as on cave walls and ceilings although there are very few records of caves in conditions not subject to wave surge (i.e. deeper circalittoral habitats) and almost all are different in species composition. There are also a few examples of similar communities on very deep (70-100 m+) upward-facing rock (in Loch Hourn) and more may be found through the use of ROVs. These often species-rich habitats are almost invariably adjacent to well-mixed turbulent water. Characteristic species include the sponges Stryphnus ponderosus, Dercitus bucklandi, Chelonaplysilla noevus, Pseudosuberites sp. and Spongosorites sp., the anemones Parazoanthus spp., the cup corals Leptopsammia pruvoti, Hoplangia durotrix, Caryophyllia inornatus and the soft coral Parerythropodium coralloides. Thymosia guernei is sometimes present. This biotope is likely to need further splitting with further data and analysis.
Situation: Subtidal rocky coasts.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code MC1261
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 Chelonaplysilla noevus
Invertebrates Dercitus bucklandi
Invertebrates Hoplangia durotrix
Invertebrates Stryphnus ponderosus
Species scientific name English common name Species group
Chelonaplysilla noevus Invertebrates
Dercitus bucklandi Invertebrates
Hoplangia durotrix Invertebrates
Stryphnus ponderosus Invertebrates

History

Classification Code Habitat type name Relationship type Comment
EUNIS Habitat Classification 200410 A4.711 Sponges, cup corals and anthozoans on shaded or overhanging circalittoral rock same
EUNIS Habitat Classification 200410 A4.7 Features of circalittoral rock same
EUNIS Habitat Classification 200308 A3.B11 Sponges, cup corals and anthozoans on shaded or overhanging circalittoral rock same
EUNIS Habitat Classification 200202 A3.B11 Sponges, cup corals and Parerythropodium coralloides on shaded/overhanging circalittoral rock same
EUNIS Habitat Classification 199910 A3.811 Sponges, cup corals and Parerythropodium coralloides on shaded/overhanging circalittoral rock same
MNCR BioMar 97.06 (Britain & Ireland) CR.Cv.SCup Sponges, cup corals and Parerythropodium coralloides on shaded/overhanging circalittoral rock same
European Environment Agency (EEA)
Kongens Nytorv 6
1050 Copenhagen K
Denmark
Phone: +45 3336 7100