Biodiversity & Conservation

Barnacles and fucoids (moderately exposed shores)


Barnacles and fucoids (moderately exposed shores)
Distribution map

LR.MLR.BF recorded (dark blue bullet) and expected (light blue bullet) distribution in Britain and Ireland (see below)

  • EC_Habitats

Recorded distribution in Britain and Ireland

In Britain and Ireland, barnacle and fucoid biotopes are widespread on bedrock and boulder shores exposed to strong to moderate wave action and on steeply sloping or vertical rock on more sheltered shores.

Habitat preferences

Temperature range preferences - 5 - 20 °C

Water clarity preferences - Very high clarity / Very low turbidity
High clarity / Low turbidity
Medium clarity / Medium turbidity

Limiting Nutrients - Nitrogen (nitrates)
Phosphorus (phosphates)

Other preferences - None found

Additional information

Changes in the relative abundance of the cold-water barnacle Semibalanus balanoides and its warm-water counterparts Chthamalus stellatus and Chthamalus montagui show strong links with climatic conditions (Southward et al., 1995).

This review can be cited as follows:

Hill, J.M. 2000. Barnacles and fucoids (moderately exposed shores). Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 29/11/2015]. Available from: <>