Platforms with coralline algae (Lithophyllum concretions)

Description (English)

These platforms develop on rocky calcareous, volcanic or crystalline substrates which are regularly wetted by tides and waves.
It is therefore the highest biological construction of the benthic realm at sea level. When the water is calm, the rims emerge completely and their outer margins may be as much as 20-30 centimetres above the water.
This condition is made possible by the combined action of two factors which allow the maintaining of the correct degree of moisture: exposure to waves, and the porous nature of the calcareous structure. The height above mean sea level varies according to the force of waves and/or the presence of cracks and clefts which are vulnerable to storms off the coast.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code MA2552
Relation to Resolution 4 habitat type (used for designation of Emerald sites)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Not available

Other classifications

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 2007 (revised descriptions 2012) A2.7 Littoral biogenic reefs narrower
For relation to plant communities (syntaxa), see Vegetation types


Classification Code Habitat type name Relationship type Comment
EUNIS Habitat Classification 200410 A2.7 Littoral biogenic reefs same
EUNIS Habitat Classification 200308 A2.8 Littoral biogenic structures same
EUNIS Habitat Classification 200202 A2.8 Biogenic structures on littoral sediments same
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