Sheltered littoral rock
Compiled by: Leigh Jones, Joint Nature Conservation Committee, Monkstone House, City
Road, Peterborough PE1 IJY, UK.
Derived, in part, from: the UK marine biotope classification (Connor et al.
1997a) and a review undertaken for the UK Marine SACs Project (Hill, Burrows, &
|Europe (EUNIS Nov. 1999)
||Littoral rock sheltered from wave action
|Britain/Ireland (MNCR BioMar 97.06)
||Sheltered littoral rock (fucoid shores)
||Part of IV.6
||Fonds Durs: Cailloutis, Galets et Roches
Sheltered rocky shores, of bedrock or stable boulders and cobbles, are typically
characterised by a dense cover of fucoid algae which form distinct zones (channelled wrack
Pelvetia canaliculata on the upper shore through to the serrated wrack Fucus
serratus on the lower shore). Where salinity is reduced (such as at the head of a
sealoch or where streams run across the shore) Fucus ceranoides may occur. Fucoids
also occur on less stable, mixed substrata (cobbles and pebbles on sediment) although in
less abundance and with fewer associated epifaunal species; beds of mussels Mytilus
edulis are also common. In summer months, dense blankets of ephemeral green and red
seaweeds can dominate these mixed shores.
NB. Mytilus edulis beds are considered in a separate habitat review.
(from MNCR database March 1999)
Species composition and biodiversity
Sensitivity to human activities
Conservation and protection status