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Oyster reef at about mid-tide off fishing pier at Hunting Island State Park, South Carolina. A group of oysters is commonly called a bed or oyster reef. Rocks in intertidal zone covered by oysters, at Bangchuidao Scenic Area, Dalian, Liaoning Province, China. As a keystone species, oysters provide habitat for many marine species.
The Ostreidae, the true oysters, include most species of molluscs commonly consumed as oysters. Pearl oysters are not true oysters, and belong to the order Pteriida. Like scallops, true oysters have a central adductor muscle, which means the shell has a characteristic central scar marking its point of attachment. The shell tends to be irregular ...
[6] In this section, oyster is used to mean "members of Ostreoidea". Oysters of this group generally attach to a substrate by cementing their left valve to it. The two valves are unequal: the attached left valve is larger and more cupped than the right 'lid' (to a greater or lesser extent, depending on the species).
The eastern oyster (Crassostrea virginica)—also called the Atlantic oyster, American oyster, or East Coast oyster—is a species of true oyster native to eastern North and South America. Other names in local or culinary use include the Wellfleet oyster , [ 3 ] Virginia oyster , Malpeque oyster , Blue Point oyster , Chesapeake Bay oyster , and ...
Ostrea lurida, common name the Olympia oyster, after Olympia, Washington in the Puget Sound area, is a species of small, edible oyster, a marine bivalve mollusk in the family Ostreidae. This species occurs on the northern Pacific coast of North America. Over the years the role of this edible species of oyster has been partly displaced by the ...
One species of particular concern is Vibrio vulnificus, which is more life-threatening and involves tissue death around wounds. Symptoms include fever, chills, skin redness, blisters, nausea ...
Molluscs are second only to arthropods in numbers of living animal species [20] —far behind the arthropods' 1,113,000 but well ahead of chordates' 52,000. [18]: Front endpaper About 200,000 living species in total are estimated, [ 3 ] [ 24 ] and 70,000 fossil species, [ 17 ] although the total number of mollusc species ever to have existed ...
Seafood is any form of sea life regarded as food by humans, prominently including fish and shellfish.Shellfish include various species of molluscs (e.g., bivalve molluscs such as clams, oysters, and mussels, and cephalopods such as octopus and squid), crustaceans (e.g. shrimp, crabs, and lobster), and echinoderms (e.g. sea cucumbers and sea urchins).