Crustose sponges on extremely wave-surged infralittoral cave or gully walls

English name: Crustose sponges on extremely wave-surged infralittoral cave or gully walls

Description (English)

Walls, or massive boulders, in caves or gullies that are subject to severe wave-surge and characterised by extensive thin crusts of the sponge Halichondria panicea with smaller patches of other sponges such as Esperiopsis fucorum or Clathrina coriacea. Small turfs of robust hydroids, such as Diphasia rosacea and Ventromma halecioides, and patches of the barnacle Balanus crenatus, coralline crusts and tube-building spirorbid polychaetes may be present. The starfish Henricia spp., the brittlestar Ophiopholis aculeata and the crabs Cancer pagurus and Necora puber can be present. The anemones Sagartia elegans, Urticina felina and Actinia equina can be found in cracks and crevices or under boulders. The mussel Mytilus edulis may be present in low densities.
Situation: This surge-tolerant biotope of low-growing fauna is typically confined to the mid or rear section of caves (or the narrowest part of gullies) where the wave-surge is intensified. It generally abuts the less surged ascidian-sponge communities (units A3.712, A3.714 and A3.713). A highly scoured zone of barnacles and calcareous tubeworms often form a zone below, abutting the cave/gully floor (A3.7161).

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A3.715
Bern Convention Included in a Resolution 4 habitat type at a higher level (A3)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Actinia equina
Invertebrates Balanus crenatus
Invertebrates Cancer pagurus
Invertebrates Clathrina coriacea
Invertebrates Diphasia rosacea
Invertebrates Esperiopsis fucorum
Invertebrates Halichondria panicea
Invertebrates Mytilus edulis
Invertebrates Necora puber
Invertebrates Ophiopholis aculeata
Invertebrates Sagartia elegans
Invertebrates Urticina felina
Invertebrates Ventromma halecioides
Species scientific name English common name Species group
Actinia equina Invertebrates
Balanus crenatus Invertebrates
Cancer pagurus Invertebrates
Clathrina coriacea Invertebrates
Diphasia rosacea Invertebrates
Esperiopsis fucorum Invertebrates
Halichondria panicea Invertebrates
Mytilus edulis Invertebrates
Necora puber Invertebrates
Ophiopholis aculeata Invertebrates
Sagartia elegans Invertebrates
Urticina felina Invertebrates
Ventromma halecioides Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 IR.FIR.SG.CrSp Crustose sponges on extremely wave-surged infralittoral cave or gully walls source
CORINE Land Cover 5.2.3. Sea and ocean n/a
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 200410 A3.715 Crustose sponges on extremely wave-surged infralittoral cave or gully walls same
EUNIS Habitat Classification 200308 A3.414 Sponge crusts on extremely wave-surged infralittoral cave or gully walls same
EUNIS Habitat Classification 200202 A3.414 Sponge crusts on extremely wave-surged infralittoral cave or gully walls same
EUNIS Habitat Classification 199910 A3.414 Sponge crusts on extremely wave-surged infralittoral cave or gully walls same
MNCR BioMar 97.06 (Britain & Ireland) EIR.SG.SC Sponge crusts on extremely wave-surged infralittoral cave or gully walls same
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