EUNIS habitat classification 2012 amended 2019 > A - Marine habitats > A3 - Infralittoral rock and other hard substrata > A3.3 - Atlantic and Mediterranean low energy infralittoral rock

Atlantic and Mediterranean low energy infralittoral rock

English name: Atlantic and Mediterranean low energy infralittoral rock

Description (English)

Infralittoral rock in wave and tide-sheltered conditions, supporting silty communities with Laminaria hyperborea and/or Laminaria saccharina (A3.31). Associated seaweeds are typically silt-tolerant and include a high proportion of delicate filamentous types. In turbid-water estuarine areas, the kelp and seaweeds (A3.32) may be replaced by animal-dominated communities (A3.36) whilst stable hard substrata in lagoons support distinctive communities (A3.34).

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type	code A3.3
Bern Convention	Included in a Resolution 4 habitat type at a higher level (A3)
Relation to	Annex I habitat types (EU Habitats Directive)

Legal status

Relation to other habitat types mentioned in legal instruments

Legal text	Annex	Name in legal text	Code in legal text	Habitat type relationship	More information
Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora - consolidated version 01/01/2007	Annex I: natural habitat types of community interest whose conservation requires the designation of special areas of conservation	Estuaries	1130	Overlap	http://ec.europa.eu/environm...rective/index_en.htm
Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora - consolidated version 01/01/2007	Annex I: natural habitat types of community interest whose conservation requires the designation of special areas of conservation	Coastal lagoons	1150	Overlap
Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora - consolidated version 01/01/2007	Annex I: natural habitat types of community interest whose conservation requires the designation of special areas of conservation	Large shallow inlets and bays	1160	Overlap
Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora - consolidated version 01/01/2007	Annex I: natural habitat types of community interest whose conservation requires the designation of special areas of conservation	Reefs	1170	Overlap

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Algae Laminaria hyperborea

Algae Laminaria saccharina

Species scientific name	English common name	Species group
Laminaria hyperborea		Algae
Laminaria saccharina		Algae

Other classifications

Classification	Code	Habitat type name	Relationship type
CORINE Land Cover	5.2.3.	Sea and ocean	n/a
Marine Habitat Classification Britain/Ireland 0405	IR.LIR	Low energy infralittoral rock	same
Biodiversity Broad Habitat Classification (UK)	22	Inshore sublittoral rock	wider

For relation to plant communities (syntaxa), see Vegetation types

History

Classification	Code	Habitat type name	Relationship type
EUNIS Habitat Classification 200410	A3.3	Atlantic and Mediterranean low energy infralittoral rock	same
EUNIS Habitat Classification 200308	A3.3	Low energy infralittoral rock	same
EUNIS Habitat Classification 200202	A3.3	Infralittoral rock sheltered from wave action and currents and tidal streams	same
EUNIS Habitat Classification 199910	A3.3	Infralittoral rock sheltered from wave action and currents and tidal streams	same
EUNIS Habitat Classification 199811	A3.3	Infralittoral rock sheltered from wave action or tidal currents	same
EUNIS Habitat Classification 199712	A3.3	Sheltered infralittoral rock	same
MNCR BioMar 97.06 (Britain & Ireland)	SIR	Sheltered infralittoral rock	same
MNCR BioMar 96.7 (Britain & Ireland)	SIR		same

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