Biodiversity & Conservation

Caves and overhangs (deep)


Caves and overhangs (deep)
Distribution map

CR.C.Cv recorded (dark blue bullet) and expected (light blue bullet) distribution in Britain and Ireland (see below)

  • EC_Habitats

Characterizing species

Species % Frequency Faithfulness Abundance
Alcyonium glomeratum 41-60 % 0 1  R
Corynactis viridis 41-60 % 0 1  F
Caryophyllia smithii 61-80 % 0  C
Hoplangia durotrix 21-40 % 0 1 2  R
Balanophyllia regia 21-40 % 0 1 2  C
Leptopsammia pruvoti 21-40 % 0 1 2  C
Crisiidae 41-60 % 0 1  C
Clavelina lepadiformis 41-60 % 0  O

Map icon 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 icon 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 29/11/2015]. Available from: <>