EUNIS habitat classification 2017 > M - Marine benthic habitats > MA1 - Littoral rock > MA14 - Black sea littoral rock > MA147 - Turf algae on Black sea moderately exposed lower mediolittoral rock

Turf algae on Black sea moderately exposed lower mediolittoral rock

Description (English)

Typically a narrow zone characterised by a cover of algal turf, particularly erect and crustose coralline algae on areas of moderately exposed bedrock and boulders in the lower mediolittoral zone. Characteristic species: Encrusting corallines (Lithophyllum incrustans), articulated corallines (Corallina officinalis) and ephemeral macrophytes like Ulva compressa, Cladophora sp. and Ceramiales make up the algal cover. Characteristic fauna includes the chiton Lepidochitona caprearum, the limpet Patella caerulea, barnacles Balanus improvisus, anemones Diadumene lineata, mussels Mytilaster lineatus and Mytilus galloprovincialis, bryozoans, amphipods (Hyale pontica, Ampithoe ramondi) and isopods (Idotea balthica, Sphaeroma pulchellum) crustaceans, and the crabs Pachygrapsus marmoratus and Eriphia verrucosa. If the water is clean Corallina and Mytilaster may form dense turfs/belts, with sparse cover of other algae (Ceramiales, Porphyra leucosticta, Ulva rigida, Scytosiphon lomentaria). In degraded, enriched areas Mytilus galloprovincialis and Balanus improvisusdominate, with some cover of the algae Cladophora vagabunda, Cladophora laetevirens, Ulva compressa, Ulva intestinalis and Ulothrix flacca.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code MA147
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

Algae Cladophora laetevirens
Algae Cladophora vagabunda
Algae Corallina officinalis
Algae Lithophyllum incrustans
Algae Porphyra leucosticta
Algae Scytosiphon lomentaria
Algae Ulothrix flacca
Algae Ulva rigida
Invertebrates Ampithoe ramondi
Invertebrates Balanus improvisus
Invertebrates Eriphia verrucosa
Invertebrates Hyale pontica
Invertebrates Idotea balthica
Invertebrates Mytilaster lineatus
Invertebrates Mytilus galloprovincialis
Invertebrates Pachygrapsus marmoratus
Invertebrates Patella caerulea
Species scientific name English common name Species group
Cladophora laetevirens Algae
Cladophora vagabunda Algae
Corallina officinalis Algae
Lithophyllum incrustans Algae
Porphyra leucosticta Algae
Scytosiphon lomentaria Algae
Ulothrix flacca Algae
Ulva rigida Algae
Ampithoe ramondi Invertebrates
Balanus improvisus Invertebrates
Eriphia verrucosa Invertebrates
Hyale pontica Invertebrates
Idotea balthica Invertebrates
Mytilaster lineatus Invertebrates
Mytilus galloprovincialis Invertebrates
Pachygrapsus marmoratus Invertebrates
Patella caerulea Invertebrates

Other classifications

History

Not available
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