Biodiversity & Conservation

Alaria esculenta on exposed sublittoral fringe bedrock



Image Roger Mitchell - Exposed sublittoral fringe bedrock with Alaria esculenta, Isles of Scilly. Image width ca 1 m.
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Distribution map

IR.EIR.KFaR.Ala recorded (dark blue bullet) and expected (light blue bullet) distribution in Britain and Ireland (see below)

  • EC_Habitats

Recorded distribution in Britain and Ireland

Found on wave exposed coasts in the Shetland Isles and Orkney, south east Scotland, north east England, Cornwall, Devon and the Isles of Scilly, Pembrokeshire, Ceredigionshire, north Wales, the Isle of Man, the west coasts of Ireland and Scotland including the Hebrides, St Kilda and Rockall.

Habitat preferences

Temperature range preferences - -2 - 16 deg. C

Water clarity preferences - High clarity / Low turbidity
Medium clarity / Medium turbidity

Limiting Nutrients - Nitrogen (nitrates)
Phosphorus (phosphates)

Other preferences - No text entered.

Additional information

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This review can be cited as follows:

Tyler-Walters, H. 2000. Alaria esculenta on exposed sublittoral fringe bedrock. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 25/11/2015]. Available from: <>