Cumaceans and Chaetozone setosa in Atlantic infralittoral gravelly sand

Description (English)

In shallow medium-fine sands with gravel, on moderately exposed open coasts, communities dominated by cumacean crustaceans such as Iphinoe trispinosa and Diastylis bradyi along with the cirratulid polychaete Chaetozone setosa (agg.) may occur. Chaetozone setosa is a species complex so it is likely that some variability in nomenclature will be found in the literature. Other important taxa may include the polychaetes Anaitides spp., Lanice conchilega, Eteone longa and Scoloplos armiger. This community may be subject to periodical sedimentary disturbance, such that a sub-climactic community may develop with opportunistic taxa such as C. setosa and S. armiger often dominating the community (Allen 2000).
Situation: This biotope may be found in areas with moderate currents and wave action often facing into the prevailing wind and along the Holderness coast of the North Sea. It is possible that this biotope has developed due to chronic sedimentary disturbance in areas where the units MC5-214 or MB5-236 would normally develop as these biotopes are often found in more sheltered areas adjacent to A5.136.
Temporal variation: The importance of the cumacean crustaceans in this biotope is unusual, and their numbers are likely to fluctuate over time; at times of increased disturbance it is likely that C. setosa will become more dominant.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code MB3236
Relation to Resolution 4 habitat type (used for designation of Emerald sites)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Chaetozone setosa
Invertebrates Diastylis bradyi
Invertebrates Eteone longa
Invertebrates Iphinoe trispinosa
Invertebrates Lanice conchilega
Invertebrates Scoloplos armiger
Species scientific name English common name Species group
Chaetozone setosa Invertebrates
Diastylis bradyi Invertebrates
Eteone longa Invertebrates
Iphinoe trispinosa Invertebrates
Lanice conchilega Invertebrates
Scoloplos armiger Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 2007 (revised descriptions 2012) A5.136 Cumaceans and Chaetozone setosa in infralittoral gravelly sand same
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type Comment
EUNIS Habitat Classification 200410 A5.126 Cumaceans and Chaetozone setosa in infralittoral gravelly sand same
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