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Marine Habitat Classification


Description of biotope or habitat type

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   Reteporella and Axinellid sponges on Atlantic upper bathyal rock and other hard substrata


Habitat (physical) description

Salinity Full (30-35 ppt)
Wave exposure
Tidal streams
Substratum Rock - pebbles and cobbles
Zone Atlantic upper bathyal
Depth Band Biotope depth range 200 - 600 m (based on zone); assemblage recorded from 142-311 m; median 226 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.RetAxi <i>Reteporella</i> and Axinellid sponges 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 occurs on cobbles and pebbles on sandy sea bed possibly associated with shallow iceberg ploughmarks, characterised by Axinellid and massive lobose sponges, cup sponges and bryozoan Reteporella attached to the cobbles, with squat lobsters sheltering under the cobbles. It is similar to a deeper expression of the shallower biotope “deep sponge communities (circalittoral)".

Situation

No situation data available.

Temporal variation

No temporal variation data available.

Characterising Species

Taxon
Munida
Porifera encrusting (yellow, pale)
Reteporella
Axinella infundibuliformis
Porifera massive lobose
Bryozoa (erect)
Zoantharia

Similar biotopes

M.AtUB.Ro.DeeSpo.SpoSty
Stylasterids are present and sponges are mainly lobose rather than Axinellid.

Photos

M.AtUB.Ro.DeeSpo.RetAxi Reteporella and Axinellid sponges on Atlantic upper bathyal  rock and other hard substrata, North east Rockall. ANON © JNCC/University of Plymouth
M.AtUB.Ro.DeeSpo.RetAxi Reteporella and Axinellid sponges on Atlantic upper bathyal rock and other hard substrata, North east Rockall. ANON © JNCC/University of Plymouth
M.AtUB.Ro.DeeSpo.RetAxi Reteporella and Axinellid sponges on Atlantic upper bathyal  rock and other hard substrata, North east Rockall. ANON © JNCC/University of Plymouth
M.AtUB.Ro.DeeSpo.RetAxi Reteporella and Axinellid sponges on Atlantic upper bathyal rock and other hard substrata, North east Rockall. ANON © JNCC/University of Plymouth

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