EUNIS habitat classification 2017 > M - Marine benthic habitats > MA1 - Littoral rock > MA14 - Black sea littoral rock > MA14A - Communities of Marmara mediolittoral caves and overhangs

Communities of Marmara mediolittoral caves and overhangs

Description (English)

Mediolittoral caves and overhangs with low light levels where algal growth is restricted to a very few species that can withstand low light levels, low to high hydrodynamism, and extended periods of desiccation. Canopy-forming macroalgae are overall absent whilst encrusting rhodophytes are preponderant. The communities are, however, very poor in species. Two species of Rodophyta dominate: Hildenbrandia rubra and Phymatholithon lenormandii.Other species include Gymnothamnion elegans, Corallina elongata, Isopoda: Ligia italica, Cirripedia: Perforatus perforatus, Chthamalus stellatus, and Chthamalus montagui.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type	code MA14A
Relation to	Resolution 4 habitat type (used for designation of Emerald sites)

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
Convention on the conservation of European wildlife and natural habitats	Revised Annex I of Resolution 4 (1996) of the Bern Convention on endangered natural habitats types using the EUNIS habitat classification (year of revision 2010)	Communities of littoral caves and overhangs	A1.44	Narrower	https://wcd.coe.int/ViewDoc....ckColorLogged=FDC864 Resolution No. 4 (1996) of the Bern Convention lists endangered natural habitats requiring specific conservation measures [and the designation of Areas of Special Conservation Interest (ASCIs) forming the Emerald network]

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Algae Corallina elongata

Algae Hildenbrandia rubra

Invertebrates Chthamalus stellatus

Species scientific name	English common name	Species group
Corallina elongata		Algae
Hildenbrandia rubra		Algae
Chthamalus stellatus		Invertebrates

Other classifications

Classification	Code	Habitat type name	Relationship type
EUNIS Habitat Classification 2007 (revised descriptions 2012)	A1.44	Communities of littoral caves and overhangs	narrower
European Red List of Habitats	BLSA1.4C	Communities of Marmara mediolittoral caves and overhangs	same

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

History

Classification	Code	Habitat type name	Relationship type
EUNIS Habitat Classification 200410	A1.44	Communities of littoral caves and overhangs	same
EUNIS Habitat Classification 200308	A1.61	Communities of littoral caves and overhangs	same
EUNIS Habitat Classification 200202	A1.61	Communities of littoral caves and overhangs	same
EUNIS Habitat Classification 199910	A1.61	Communities of littoral caves and overhangs	same
EUNIS Habitat Classification 199811	A1.61	Communities of littoral rock caves	same
EUNIS Habitat Classification 199712	A9.11	Communities of littoral rock caves	same
MNCR BioMar 97.06 (Britain & Ireland)	LR.Ov	Overhangs and caves	same
MNCR BioMar 96.7 (Britain & Ireland)	SUR.PilPse		narrower

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