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Marine Habitat Classification


Description of biotope or habitat type

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   Polychaete worm reefs (on sublittoral sediment)


Habitat (physical) description

Salinity Full (30-35 ppt)
Wave exposure Exposed, Moderately exposed, Sheltered, Very sheltered
Tidal streams Strong (3-6 kn), Moderately strong (1-3 kn), Weak (>1 kn)
Substratum Muddy gravelly sand with pebbles
Zone Circalittoral
Depth Band 5-10 m, 10-20 m, 20-30 m
Other Features

Download comparative physical and biological data. The comparative tables enable a rapid comparison of the species composition and principal physical characteristics between a given set of biotopes.

Distribution of habitat SS.SBR.PoR Polychaete worm reefs (on sublittoral sediment)

  • Records used to define the biotope (core records)
  • Other records assigned to this biotope, marked as 'certain'
  • Other records assigned to this biotope, marked as 'uncertain'
  • Predicted extent of the level 3 (for sublittoral rock & deep sea) or 4 (for sublittoral sediment) habitat

Point data based on records in the UK Marine Recorder Snapshot. Predicted habitat extent is from UKSeaMap.

Description

Sublittoral reefs of polychaete worms in mixed sediments found in a variety of hydrographic conditions. Such habitats may range from extensive structures of considerable size to loose agglomerations of tubes. Such communities often play an important role in the structural composition or stability of the seabed and provide a wide range of niches for other species to inhabit. Consequently polychaete worm reefs often support a diverse flora and fauna.

Situation

No situation data available.

Temporal variation

No temporal data available.

Characterising Species

Taxon Relative importance of taxon for defining this community (%) Typical abundance - SACFOR scale % of core records where taxon was recorded
Hydrallmania falcata 1 Rare 21-40 %
Nemertesia antennina 2 Occasional 41-60 %
Urticina felina 1 Occasional 21-40 %
Nemertea 3 Common 41-60 %
Nematoda 2 Frequent 21-40 %
Harmothoe impar 3 Common 41-60 %
Pholoe synophthalmica 2 Frequent 21-40 %
Eulalia tripunctata 3 Abundant 21-40 %
Eumida sanguinea 1 Abundant 21-40 %
Typosyllis armillaris 2 Frequent 21-40 %
Nereis longissima 2 41-60 %
Protodorvillea kefersteini 2 Frequent 21-40 %
Scoloplos armiger 2 Abundant 41-60 %
Caulleriella zetlandica 2 Frequent 21-40 %
Mediomastus fragilis 7 Common 41-60 %
Sabellaria alveolata 24 Super abundant 41-60 %
Sabellaria spinulosa 15 Abundant 61-80 %
Sabellaria spinulosa 7 Common 41-60 %
Lanice conchilega 1 Common 21-40 %
Sabella pavonina 1 Occasional 21-40 %
Pomatoceros triqueter 6 Frequent 41-60 %
Serpula vermicularis 9 Common 41-60 %
Balanus crenatus 2 Occasional 21-40 %
Ampelisca spinipes 1 Frequent 21-40 %
Pagurus bernhardus 9 Occasional 61-80 %
Gibbula cineraria 2 Occasional 41-60 %
Buccinum undatum 4 Occasional 41-60 %
Aequipecten opercularis 1 Occasional 21-40 %
Abra alba 2 Common 21-40 %
Alcyonidium diaphanum 2 Occasional 21-40 %
Flustra foliacea 5 Occasional 41-60 %
Asterias rubens 5 Occasional 41-60 %
Ophiothrix fragilis 5 Occasional 41-60 %
Psammechinus miliaris 6 Frequent 41-60 %
Diplosoma listerianum 2 Frequent 21-40 %
Ciona intestinalis 1 Rare 21-40 %
Ascidiella aspersa 2 Frequent 21-40 %
Ascidia mentula 2 Frequent 41-60 %
Dendrodoa grossularia 3 Frequent 41-60 %
Corallinaceae 1 Occasional 21-40 %

Similar biotopes

Not applicable or unknown.


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