|Basic Information||Biotope classification||Ecology||Habitat preferences and distribution||Species composition||Sensitivity||Importance|
Image Anon. - Mytilus edulis beds with hydroids and ascidians on tide-swept moderately exposed circalittoral rock. Image width ca 1m in foreground.
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CR.MCR.M.MytHAs recorded () and expected () distribution in Britain and Ireland (see below)
EC Habitats Directive
|National importance||Not available|
|Habitat Directive feature (Annex 1)||Reefs
Large shallow inlets and bays
Kautsky (1981) reported that subtidal mussel beds in the Baltic Sea were a major food source for the flounder (Platichthys flesus) but probably of only minor importance for eelpout (Zoarces viviparus) and cod (Gadus morhua). Mussel eggs and larvae from mussel beds (including subtidal beds) are probably an important food source for herring larvae and other zooplankton (Kautsky 1981; Seed & Suchanek, 1992). The Mytilus edulis beds probably also form an important food source for starfish and decapod crustaceans, and may provide refuge for others (see ecology). However, little other information was found.
This biotope is included under the Habitats Directive Annex I features 'Reefs' and 'Estuaries'.
This review can be cited as follows:
Tyler-Walters, H. 2001. Mytilus edulis beds with hydroids and ascidians on tide-swept moderately exposed circalittoral rock. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 21/10/2014]. Available from: <http://www.marlin.ac.uk/habitatimportance.php?habitatid=208&code=1997>