High energy littoral rock

English name: High energy littoral rock

Description (English)

Extremely exposed to moderately exposed or tide-swept bedrock and boulder shores. Extremely exposed shores dominated by mussels and barnacles, occasionally with robust fucoids or turfs of red seaweed. Tide-swept shores support communities of fucoids, sponges and ascidians on the mid to lower shore. Three biological subtypes have been described: Communities on very exposed to moderately exposed upper and mid eulittoral bedrock and boulders dominated by the mussel Mytilus edulis, barnacles Chthamalus spp. and/or Semibalanus balanoides and the limpets Patella spp. (A1.11); red and brown seaweeds able to tolerate the extreme conditions of exposed rocky shores, primarily the physical stresses caused by wave action (A1.12), and tide-swept shores in more sheltered areas (such as narrow channels in sea loch) with canopy forming fucoids and a rich filter-feeding community (A1.15).

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A1.1
Relation to Annex I habitat types (EU Habitats Directive)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description


List

Other classifications

Classification Code Habitat type name Relationship type
CORINE Land Cover 4.2.3. Intertidal flats n/a
Marine Habitat Classification Britain/Ireland 0405 LR.HLR High energy littoral rock same
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 200410 A1.1 High energy littoral rock same
EUNIS Habitat Classification 200308 A1.1 High energy littoral rock same
EUNIS Habitat Classification 200202 A1.1 Littoral rock very exposed to wave action same
EUNIS Habitat Classification 199910 A1.1 Littoral rock very exposed to wave action same
EUNIS Habitat Classification 199811 A1.1 Littoral rock very exposed to wave action same
EUNIS Habitat Classification 199712 A1.2 Eulittoral (inter-tidal) rock very exposed to wave action same
MNCR BioMar 97.06 (Britain & Ireland) ELR Exposed littoral rock (mussel/barnacle shores) same
MNCR BioMar 96.7 (Britain & Ireland) ELR   same
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