Polyides rotundus and/or Furcellaria lumbricalis on reduced salinity Atlantic infralittoral rock
Description (English)
Bedrock and boulders characterised by a dense turf of the red seaweeds Polyides rotundus and/or Furcellaria lumbricalis, often with a dense mat of filamentous brown and green seaweeds including Ectocarpaceae and Cladophora spp. Other red seaweeds presents include Chondrus crispus, Gracilaria gracilis and coralline crusts as well as the odd brown seaweed Chorda filum or Laminaria spp. Associated with these seaweeds are a variety of ascidians including Clavelina lepadiformis, Ascidiella aspersa, Ascidiella scabra and Ciona intestinalis as well as the anemones Anemonia viridis and Actinia equina and the sponge Halichondria panicea. More mobile fauna include the starfish Asterias rubens, the crab Carcinus maenas, the hermit crab Pagurus bernhardus, the opossum shrimps Mysidae and the gastropod Littorina littorea. Attached to the rock or cobbles are spirorbid polychaetes and the mussel Mytilus edulis. Please notice that part of this diversity is due to large differences between sites.
Situation: Nearby rock (units MB1-252 and MB1-251) and seagrass Ruppia maritima dominating much of the surrounding muddy sediment (unit MB5-224). Mixed sediment supports filamentous green seaweeds e.g. Cladophora spp. and Derbesia marina on MB4-221.
Source: EUNIS habitat classification
Quick facts
EUNIS habitat type | code MB1253 |
---|---|
Relation to | Resolution 4 habitat type (used for designation of Emerald sites) |
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 |
---|---|---|
Chondrus crispus | Algae | |
Furcellaria lumbricalis | Algae | |
Gracilaria gracilis | Algae | |
Polyides rotundus | Algae | |
Ruppia maritima | Flowering Plants | |
Actinia equina | Invertebrates | |
Anemonia viridis | Invertebrates | |
Ascidiella aspersa | Invertebrates | |
Ascidiella scabra | Invertebrates | |
Asterias rubens | Invertebrates | |
Carcinus maenas | Invertebrates | |
Ciona intestinalis | Invertebrates | |
Clavelina lepadiformis | Invertebrates | |
Halichondria panicea | Invertebrates | |
Littorina littorea | Invertebrates | |
Mytilus edulis | Invertebrates | |
Pagurus bernhardus | Invertebrates |
Other classifications
Classification | Code | Habitat type name | Relationship type |
---|---|---|---|
EUNIS Habitat Classification 2007 (revised descriptions 2012) | A3.343 | Polyides rotundus and/or Furcellaria lumbricalis on reduced salinity infralittoral rock | same |
History
Classification | Code | Habitat type name | Relationship type | Comment |
---|---|---|---|---|
EUNIS Habitat Classification 200410 | A3.343 | Polyides rotundus and/or Furcellaria lumbricalis on reduced salinity infralittoral rock | same | |
EUNIS Habitat Classification 200308 | A3.333 | Polyides rotundus and/or Furcellaria lumbricalis on reduced salinity infralittoral rock | same | |
EUNIS Habitat Classification 200202 | A3.333 | Polyides rotundus and/or Furcellaria lumbricalis on reduced salinity infralittoral rock | same | |
EUNIS Habitat Classification 199910 | A3.333 | Polyides rotundus and/or Furcellaria lumbricalis on reduced salinity infralittoral rock | same | |
MNCR BioMar 97.06 (Britain & Ireland) | SIR.Lag.PolFur | Polyides rotundus and/or Furcellaria lumbricalis on reduced salinity infralittoral rock | same |