Balanus crenatus and Tubularia indivisa on extremely tide-swept circalittoral rock

English name: Balanus crenatus and Tubularia indivisa on extremely tide-swept circalittoral rock

Description (English)

This biotope typically occurs on upward-facing, extremely tide-swept, circalittoral bedrock, boulders and cobbles found in a broad spectrum of wave-exposures. It is characterised by a few species that are capable of maintaining a foothold in strong tides. These species either form a flat, adherent crust in the case of the barnacle Balanus crenatus, or have strong attachment points and are flexible, bending with the tide, such as the turf of the hydroid Tubularia indivisa. Other species able to tolerate these very strong tides, or just situated slightly out of the main force of the current, include the sponge Halichondria panicea, the robust hydroid Sertularia argentea and current-tolerant anemones such as Sagartia elegans, Urticina felina and Metridium senile. Mobile species such as the starfish Asterias rubens, the crab Cancer pagurus and the whelk Nucella lapillus may also be present.
Situation: This biotope is typically occurs in deep, very tide-swept straights, sounds and narrows with a bedrock/boulder/cobble slope. Kelp forest (unit A3.212) occurs in shallower water.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A4.111
Bern Convention Included in a Resolution 4 habitat type at a higher level (A4)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Asterias rubens
Invertebrates Balanus crenatus
Invertebrates Cancer pagurus
Invertebrates Halichondria panicea
Invertebrates Metridium senile
Invertebrates Nucella lapillus
Invertebrates Sagartia elegans
Invertebrates Sertularia argentea
Invertebrates Tubularia indivisa
Invertebrates Urticina felina
Species scientific name English common name Species group
Asterias rubens Invertebrates
Balanus crenatus Invertebrates
Cancer pagurus Invertebrates
Halichondria panicea Invertebrates
Metridium senile Invertebrates
Nucella lapillus Dog whelk Invertebrates
Sagartia elegans Invertebrates
Sertularia argentea Invertebrates
Tubularia indivisa Invertebrates
Urticina felina Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 CR.HCR.FaT.BalTub <I>Balanus crenatus</I> and <I>Tubularia indivisa</I> on extremely tide-swept circalittoral rock 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 A4.111 Balanus crenatus and Tubularia indivisa on extremely tide-swept circalittoral rock same
EUNIS Habitat Classification 200308 A3.533 Balanus crenatus, Halichondria panicea and Alcyonidium diaphanum on extremely tide-swept sheltered circalittoral rock narrower
EUNIS Habitat Classification 200308 A3.531 Balanus crenatus and Tubularia indivisa on extremely tide-swept circalittoral rock same
EUNIS Habitat Classification 200202 A3.533 Balanus crenatus, Halichondria panicea and Alcyonidium diaphanum on extremely tide-swept sheltered circalittoral rock narrower
EUNIS Habitat Classification 200202 A3.531 Balanus crenatus and Tubularia indivisa on extremely tide-swept circalittoral rock narrower
EUNIS Habitat Classification 199910 A3.531 Balanus crenatus and Tubularia indivisa on extremely tide-swept circalittoral rock narrower
EUNIS Habitat Classification 199910 A3.533 Balanus crenatus, Halichondria panicea and Alcyonidium diaphanum on extremely tide-swept sheltered circalittoral rock narrower
MNCR BioMar 97.06 (Britain & Ireland) ECR.BS.BalTub Balanus crenatus and Tubularia indivisa on extremely tide-swept circalittoral rock narrower
MNCR BioMar 97.06 (Britain & Ireland) ECR.BS.BalHpan Balanus crenatus, Halichondria panicea and Alcyonidium diaphanum on extremely tide-swept sheltered circalittoral rock narrower
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