|General Information||Taxonomy and identification||General biology||Habitat preferences and distribution||Reproduction and longevity||Sensitivity||Importance|
Image Keith Hiscock - The common cockle Cerastoderma edule on mud surface. Image width ca 8 cm.
Image copyright information
Cerastoderma edule is not listed under any importance categories.
|Researched by:||Dr Harvey Tyler-Walters||Refereed by:||This information is not refereed.|
|Phylum||Mollusca||Snails, slugs, mussels, cockles, clams & squid|
|Class||Bivalvia||Clams, cockles, mussels, oysters, and scallops|
|Recorded distribution in Britain and Ireland||Widely distributed in estuaries and sandy bays around the coasts of Britain and Ireland.|
|Habitat information||Inhabits the surface of sediments, burrowing to a depth of no more than 5 cm. Found on clean sand, muddy sand, mud or muddy gravel from the middle to lower intertidal, sometimes subtidally. Usually live at salinities between 15 -35 psu but can tolerate salinities as low as 10 psu. Often abundant in estuaries and sheltered bays, and population densities of 10,000 per m² have been recorded.|
|Description||The familiar edible cockle. The shell is solid, thick, equivalve, globular and broadly oval in outline; up to 5 cm long but usually less. Shell with 22-28 radiating ribs, crossed by conspicuous concentric ridges and may bear short, flat spines. Outer surface off-white, yellowish or brownish. Growth lines are prominent. Inner surface dull white, with a brownish or light purple stain on or about the posterior adductor muscle scar. The pallial line lacks a sinus. Both valves bear two cardinal teeth. In addition the right bear two anterior and two posterior lateral teeth while the left valve bears a single anterior and posterior lateral. Shallow grooves on the inner surface run from the notched margin, fading before reaching the pallial line.|
This review can be cited as follows:
Dr Harvey Tyler-Walters 2007. Cerastoderma edule. Common cockle. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 22/05/2013]. Available from: <http://www.marlin.ac.uk/speciesfullreview.php?speciesID=2924>