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Biodiversity & Conservation
| Basic Information | Biotope classification | Ecology | Habitat preferences and distribution | Species composition | Sensitivity | Importance |
Caves and overhangs (deep)
CR.C.Cv
CR.C.Cv recorded (
) and expected (
) distribution in Britain and Ireland (see below)
Characterizing species
| Species | % Frequency | Faithfulness | Abundance |
|---|---|---|---|
| Alcyonium glomeratum | 41-60 % |  |
R |
| Corynactis viridis | 41-60 % | |
F |
| Caryophyllia smithii | 61-80 % | |
C |
| Hoplangia durotrix | 21-40 % | |
R |
| Balanophyllia regia | 21-40 % | |
C |
| Leptopsammia pruvoti | 21-40 % | |
C |
| Crisiidae | 41-60 % | |
C |
| Clavelina lepadiformis | 41-60 % | |
O |
UK and Ireland classification
| Major habitat | CR | Circalittoral rock (and other hard substrata) |
|---|---|---|
| Habitat complex | CR.C | Circalittoral rock (other) |
| Biotope complex | CR.C.Cv | Caves and overhangs (deep) |
Additional information
European Union Natural Information System (EUNIS) classification: A3.B1/B-CR.Cv - Communities of circalittoral caves and overhangs (Davies & Moss, 1998).
The biotope classification (Connor et al 1997a) appears rather mixed-up regarding the components of the researched biotope and the very similar SCR.Scup. The assessment of sensitivity is for both.
This review can be cited as follows:
Hiscock, K. 2000. Caves and overhangs (deep). Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 22/05/2013]. Available from: <http://www.marlin.ac.uk/habitatclassification.php?habitatid=10&code=1997>
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