Pelvetia canaliculata and barnacles on moderately exposed littoral fringe rock
Quick facts
EUNIS habitat type | code MA1241 |
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Relation to | Resolution 4 habitat type (used for designation of Emerald sites) |
Description (English)
Exposed to moderately exposed steep, lower littoral fringe rock and mixed substrata characterised by the wrack Pelvetia canaliculata and sparse barnacles Chthamalus montagui and Semibalanus balanoides. On sheltered shores the biotope is restricted to vertical faces. The limpet Patella vulgata and the wrack Fucus spiralis are usually present as well. P. canaliculata typically overgrows a crust of the black lichen Verrucaria maura or on occasion Verrucaria mucosa, in contrast to the red crust Hildenbrandia rubra on very sheltered shores. The winkle Littorina saxatilis is frequently present underneath the fronds of P. canaliculata. Some geographical variation are present and southern and western shores are typically characterised by the barnacle C. montagui or Chthamalus stellatus while S. balanoides dominates on northern and eastern shores. On mixed substrata the barnacle Elminius modestus may be present.
Situation: This unit is generally found below the V. maura and barnacle zone (MA1-2131; MA1-2132). On exposed shores it is found above the biotope dominated by F. spiralis (unit MA1-23C) or the mussel Mytilus edulis and barnacles biotope (unit MA1-221) or the barnacles and P. vulgata biotopes (unit MA1-223). In addition, patches of lichen Lichina pygmaea with the barnacle Chthamalus montagui (unit MA1-2222) may also occur at the same level or above this biotope, particularly on southern shores. On sheltered to extremely sheltered shores this biotope is limited to very steep or vertical faces.
Source: EUNIS habitat classification
Legal status
Relation to other habitat types mentioned in legal instruments
Vegetation types
Relation to vegetation types (syntaxa)
Not availableSpecies mentioned in habitat description
Species scientific name | English common name | Species group |
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Fucus spiralis | Algae | |
Hildenbrandia rubra | Algae | |
Chthamalus stellatus | Invertebrates | |
Mytilus edulis | Invertebrates | |
Patella vulgata | Invertebrates |
Other classifications
Classification | Code | Habitat type name | Relationship type |
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EUNIS Habitat Classification 2007 (revised descriptions 2012) | A1.211 | Pelvetia canaliculata and barnacles on moderately exposed littoral fringe rock | same |
History
Classification | Code | Habitat type name | Relationship type | Comment |
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EUNIS Habitat Classification 200410 | A1.211 | Pelvetia canaliculata and barnacles on moderately exposed littoral fringe rock | same | |
EUNIS Habitat Classification 200308 | A1.221 | Pelvetia canaliculata and barnacles on moderately exposed littoral fringe rock | same | |
EUNIS Habitat Classification 200202 | A1.221 | Pelvetia canaliculata and barnacles on moderately exposed littoral fringe rock | same | |
EUNIS Habitat Classification 199910 | A1.211 | Pelvetia canaliculata and barnacles on moderately exposed littoral fringe rock | same | |
MNCR BioMar 97.06 (Britain & Ireland) | MLR.BF.PelB | Pelvetia canaliculata and barnacles on moderately exposed littoral fringe rock | same |