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Marine Habitat Classification


Description of biotope or habitat type

To understand more about what this page is describing, see How to use the classification. See also How to cite.

   Barren littoral shingle


Habitat (physical) description

Salinity Full (30-35 ppt)
Wave exposure Exposed, Moderately exposed
Tidal streams
Substratum Pebbles; cobbles; gravel
Zone
Depth Band Lower shore, Mid shore, Upper shore
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 LS.LCS.Sh.BarSh Barren littoral shingle

  • 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'

Point data based on records in the UK Marine Recorder Snapshot.

Description

Shingle or gravel shores, typically with sediment particle size ranging from 4 - 256 mm, sometimes with some coarse sand mixed in. This biotope is normally only found on exposed open coasts in fully marine conditions. Such shores tend to support virtually no macrofauna in their very mobile and freely draining substratum. The few individuals that may be found are those washed into the habitat by the ebbing tide, including the occasional amphipod or small polychaete.

Situation

BarSh often extends over the whole shore, sometimes extending into the subtidal zone. BarSh may occur on the upper shore above BarSa, and in moderately exposed conditions, above AmSco on the lower shore. Tal may occur on the same shore as BarSh, where driftlines of algae and other debris accumulate on the upper shore.

Temporal variation

There may be a temporary cover of the green seaweeds Enteromorpha spp. or Ulva spp. during periods of stability in the summer.

Characterising Species

Characterising species data not applicable.

Similar biotopes

LS.LSa.MoSa.BarSa
A similarly barren sediment habitat, but where the sediment is predominantly sand.

Biotope history

Classification Habitat code
97.06 LGS.Sh.BarSh
6.95 LMXD.BAR

Photos

LS.LCS.SH.BarSh Barren littoral shingle, Unspecified location. David Connor © JNCC
LS.LCS.SH.BarSh Barren littoral shingle, Unspecified location. David Connor © JNCC
LS.LCS.SH.BarSh Barren littoral shingle, Dinas Dinlle, Trefor, Gwynedd. Keith Hiscock © JNCC
LS.LCS.SH.BarSh Barren littoral shingle, Dinas Dinlle, Trefor, Gwynedd. Keith Hiscock © JNCC
LS.LCS.SH.BarSh Barren littoral shingle, South Beach, Pwllheli. Paul Brazier © JNCC
LS.LCS.SH.BarSh Barren littoral shingle, South Beach, Pwllheli. Paul Brazier © JNCC

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