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Marine Habitat Classification


Description of biotope or habitat type

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   Heliometra glacialis, Actinostolid anemones and tube worm assemblage on Arctic mid bathyal rock and other hard substrata


Habitat (physical) description

Salinity Full (30-35 ppt)
Wave exposure
Tidal streams
Substratum Rock and other hard substrata - cobbles and boulders
Zone Arctic mid bathyal
Depth Band Biotope depth range 600 - 1100 m (based on zone); assemblage recorded from 799 - 903 m; mean 875 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 M.ArMB.Ro.CriCom.HelGla <i>Heliometra glacialis</i>, Actinostolid anemones and tube worm assemblage on Arctic mid bathyal rock and other hard substrata

  • 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

This biotope has been recorded on a cobble and boulder matrix at the base of the Wyville Thomson Ridge in cold Arctic waters. Conspicuous fauna are the Actinostolid anemones, the crinoid Heliometra glacialis, and sabellid tube worms.

Situation

No situation data available.

Temporal variation

No temporal variation data available.

Characterising Species

Taxon
Actinostolidae
Anthozoa sp 2
Crossaster papposus
Gersemia
Heliometra glacialis
Ophiuroidea
Sabellidae
Serpulidae
Tubularia

Similar biotopes

M.ArMB.Ro.MixCor.CorGer
Distinguished by the presence of Corymorpha and zoanthids as well as Heliometra glacialis and Gersemia.

Photos

M.ArMB.Ro.CriCom.HelGla Heliometra glacialis, Actinostolid anemones and tube worm assemblage on Arctic mid bathyal rock and other hard substrata, Wyville-Thompson Ridge. ANON © MSS/JNCC/University of Plymouth
M.ArMB.Ro.CriCom.HelGla Heliometra glacialis, Actinostolid anemones and tube worm assemblage on Arctic mid bathyal rock and other hard substrata, Wyville-Thompson Ridge. ANON © MSS/JNCC/University of Plymouth

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