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Marine Habitat Classification


Description of biotope or habitat type

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   Lobose sponge and stylasterid assemblage on Atlantic upper bathyal rock and other hard substrata


Habitat (physical) description

Salinity Full (30-35 ppt)
Wave exposure
Tidal streams
Substratum Rock and other hard substrata - bedrock and boulders
Zone Atlantic upper bathyal
Depth Band Biotope depth range 300 - 600 m (based on zone); assemblage recorded from 387 - 685 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.AtUB.Ro.DeeSpo.SpoSty Lobose sponge and stylasterid  assemblage on Atlantic upper 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 found on bedrock and boulders on the shallow flanks of Rockall Bank and is characterised by large yellow lobose sponges and Stylasterid corals. It has only been observed on Rockall Bank most likely due to the shallow depth range over which it occurs; the summits of many of the features are too deep.

Situation

No situation data available.

Temporal variation

No temporal variation data available.

Characterising Species

Taxon
Anomidae sp.1
Stylaster sp.1
Porifera lobose (yellow)
Serpulidae
Munida
Porifera encrusting (pale, yellow and orange)
Ophiactis
Brachiopoda sp.1
Cidaris cidaris
Caryophyllia sp.3
Pandalus borealis

Similar biotopes

M.AtUB.Ro.DeeSpo.RetAxi
Stylasterids are absent and Axinellid sponges are present as well as lobose sponges. Bryozoan Reteporella is also common.

Photos

M.AtUB.Ro.DeeSpo.SpoSty Lobose sponge and stylasterid  assemblage on Atlantic upper bathyal rock and other hard substrata, North east Rockall. ANON © JNCC/University of Plymouth
M.AtUB.Ro.DeeSpo.SpoSty Lobose sponge and stylasterid assemblage on Atlantic upper bathyal rock and other hard substrata, North east Rockall. ANON © JNCC/University of Plymouth
M.AtUB.Ro.DeeSpo.SpoSty Lobose sponge and stylasterid  assemblage on Atlantic upper bathyal rock and other hard substrata, North east Rockall. ANON © JNCC/University of Plymouth
M.AtUB.Ro.DeeSpo.SpoSty Lobose sponge and stylasterid assemblage on Atlantic upper bathyal rock and other hard substrata, North east Rockall. ANON © JNCC/University of Plymouth

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