EUNIS habitat classification 2012 amended 2019 > A - Marine habitats > A5 - Sublittoral sediment > A5.3 - Sublittoral mud > A5.36 - Circalittoral fine mud > A5.361 - Seapens and burrowing megafauna in circalittoral fine mud > A5.3611 - Seapens, including Funiculina quadrangularis, and burrowing megafauna in undisturbed circalittoral fine mud

Seapens, including Funiculina quadrangularis, and burrowing megafauna in undisturbed circalittoral fine mud

English name: Seapens, including Funiculina quadrangularis, and burrowing megafauna in undisturbed circalittoral fine mud

Description (English)

Deep muds, especially in sealochs, support forests of the nationally scarce Funiculina quadrangularis, in addition to populations of the seapens Virgularia mirabilis and Pennatula phosphorea. The sediment is usually extensively burrowed by crustaceans, the most common of which is Nephrops norvegicus, but Calocaris macandreae and Callianassa subterranea may also be present (the latter is likely to be under-recorded by grab sampling because it is deep burrowing). The burrowing anemone Cerianthus lloydii is present in low numbers in this biotope and the rare anemone Pachycerianthus multiplicatus may also be found occasionally. Amphiura spp. are also often present in high densities.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code A5.3611
Bern Convention Included in a Resolution 4 habitat type at a higher level (A5)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Callianassa subterranea
Invertebrates Calocaris macandreae
Invertebrates Funiculina quadrangularis
Invertebrates Nephrops norvegicus
Invertebrates Pachycerianthus multiplicatus
Invertebrates Pennatula phosphorea
Invertebrates Virgularia mirabilis
Species scientific name English common name Species group
Callianassa subterranea Invertebrates
Calocaris macandreae Invertebrates
Funiculina quadrangularis Invertebrates
Nephrops norvegicus Invertebrates
Pachycerianthus multiplicatus Invertebrates
Pennatula phosphorea Invertebrates
Virgularia mirabilis Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 SS.SMu.CFiMu.SpnMeg.Fun Seapens, including <I>Funiculina quadrangularis</I>, and burrowing megafauna in undisturbed circalittoral fine mud 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 A5.3611 Seapens, including Funiculina quadrangularis, and burrowing megafauna in undisturbed circalittoral fine mud same
EUNIS Habitat Classification 200308 A4.3621 Seapens, including Funiculina quadrangularis, and burrowing megafauna in undisturbed circalittoral soft mud same
EUNIS Habitat Classification 200202 A4.3621 Seapens, including Funiculina quadrangularis, and burrowing megafauna in undisturbed circalittoral soft mud same
EUNIS Habitat Classification 199910 A4.3621 Seapens, including Funiculina quadrangularis, and burrowing megafauna in undisturbed circalittoral soft mud same
MNCR BioMar 97.06 (Britain & Ireland) CMU.SpMeg.Fun Seapens, including Funiculina quadrangularis, and burrowing megafauna in undisturbed circalittoral soft mud same
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