Native oyster - Ostrea edulis - General information
Image Keith Hiscock - A view of the upper (right) side of a native oyster attached to pebbles. Image width ca 5 cm.
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| Researched by:
||Angus Jackson and Catherine Wilding
|| Refereed by:
||This information is not refereed.
||Snails, slugs, mussels, cockles, clams & squid
||Clams, cockles, mussels, oysters, and scallops
| Recorded distribution in Britain and Ireland
||Widely distributed around the British Isles but less so on the east and north-east coasts of Britain and Ireland. The main stocks are now in the west coast of Scotland, the south-east and Thames estuary, the Solent, the River Fal, and Lough Foyle.
| Habitat information
||Ostrea edulis is associated with highly productive estuarine and shallow coastal water habitats on firm bottoms of mud, rocks, muddy sand, muddy gravel with shells and hard silt. In exploited areas, suitable habitat is/has been created in the form of 'cultch' - broken shells and other hard substrata.
||Ostrea edulis is a bivalve mollusc that has an oval or pear-shaped shell with a rough, scaly surface. The two halves (valves) of the shell are different shapes. The left valve is concave and fixed to the substratum, the right being flat and sitting inside the left. The shell is off-white, yellowish or cream in colour with light brown or bluish concentric bands on the right valve. Ostrea edulis grows up to 11 cm long, rarely larger. The inner surfaces are pearly, white or bluish-grey, often with darker blue areas.
This review can be cited as follows:
Angus Jackson and Catherine Wilding 2009.
Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line].
Plymouth: Marine Biological Association of the United Kingdom.
Available from: <http://www.marlin.ac.uk/speciesfullreview.php?speciesID=3997>