Moderately exposed circalittoral rock
Classification
Description
GB Distribution
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.
1997b) and a review undertaken for the UK Marine SACs Project (Hartnoll 1998).
Classification
| Classification |
Code |
Biotope(s) |
| Europe (EUNIS Nov. 1999) |
A3.6 |
Circalittoral rock moderately exposed to wave action or
currents and tidal streams. |
| Wadden Sea |
- |
Not present/listed |
| Britain/Ireland (MNCR BioMar 97.06) |
MCR |
Moderately exposed circalittoral rock |
| France (ZNIEFF-MER) |
IV.6 |
Part of Fonds durs : cailloutis, galets et roches. |
Description
Circalittoral rock subject to moderate wave exposure or some degree of tidal currents
in more sheltered conditions. Such habitats occur very widely around the coast and are
highly variable in their character, depending on quite subtle differences in water quality
(e.g. the degree of suspended silt or sand), tidal current strength, rock topography and
rock type. A wide range of biotopes are currently defined, but these may require expansion
to fully account for all parts of Britain and Ireland.
(Sabellaria spinulosa reefs [MCR.Csab], Modiolus beds [MCR.ModT] and
brittlestar beds [MCR.Bri] are considered seperately. This review considers the remainder
of MCR).
GB Distribution
(from MNCR database March 1999)
Habitat requirements
Species composition and biodiversity
Ecological relationships
Sensitivity to human activities
Conservation and protection status
References
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