Verrucaria maura on littoral fringe rock

English name: Verrucaria maura on littoral fringe rock

Description (English)

Bedrock or stable boulders and cobbles in the littoral fringe which is covered by the black lichen Verrucaria maura. This lichen typically covers the entire rock surface giving a distinct black band in the upper littoral fringe. The winkle Littorina saxatilis is usually present. Two variants are defined which both occur in a wide range of wave exposures. On exposed shores V. maura may occur with sparse barnacles such as Chthamalus spp. or Semibalanus balanoides and may be covered by a band of ephemeral seaweeds such as Porphyra umbilicalis or Enteromorpha spp. (B3.1131). Above B3.1131 or on more sheltered shores is a species poor community consisting mainly of V. maura and L. saxatilis (B3.1132).
Situation: This biotope occurs below the yellow and grey lichen zone (B3.111) and above eulittoral communities of barnacles and fuciod algae.
Temporal variation: Distinct band of red or green ephemeral algae may obscure the black lichen band at certain times of the year.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code B3.113

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Littorina saxatilis
Algae Porphyra umbilicalis
Invertebrates Semibalanus balanoides
Species scientific name English common name Species group
Littorina saxatilis Invertebrates
Porphyra umbilicalis Algae
Semibalanus balanoides Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 LR.FLR.Lic.Ver <I>Verrucaria maura</I> on littoral fringe rock source
CORINE Land Cover 3.3.2. Bare rock n/a
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 200410 B3.113 Verrucaria maura on littoral fringe rock same
EUNIS Habitat Classification 200308 B3.113 Verrucaria maura on littoral fringe rock same
EUNIS Habitat Classification 200202 B3.113 Verrucaria maura on littoral fringe rock same
EUNIS Habitat Classification 199910 B3.113 Verrucaria maura on littoral fringe rock same
MNCR BioMar 97.06 (Britain & Ireland) LR.L.Ver Verrucaria maura on littoral fringe rock same
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