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[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).
Seafood most often implicated includes squid, mackerel, tuna, sardines, crab, conch, shrimp, and bivalves, such as oysters and clams. In the Northeast United States, there is an increasing incidence of illness due to oysters contaminated with V. parahaemolyticus , which is associated with warmer waters from the Gulf of Mexico moving northward.
Unlike most bivalves, the Olympia oyster's shell lacks the periostracum, which is the outermost coating of shell that prevents erosion of the underlying shell. The color of the oyster's flesh is white to a light olive green. Ostrea lurida oysters lie with their left valve on the substrate, where they are firmly attached. Unlike most bivalves ...
Oysters from Canada, specifically Prince Edward Island, live in much cooler water where the risk of Vibrio vulnificus infections is significantly lower. Or if you want to be especially careful ...
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 ...
This species of oysters is an oviparous species, which indicates that they are animals that reproduce by laying their eggs without much embryonic development within the mother. C. rhizophorae, and more generally the genus, Crassostrea, are cup-like, or cupped, oysters, meaning that the shell itself has a cup shape to it. [4]
But oysters aren't the only delicacy from the sea harboring potentially harmful bacteria; any raw fish or shellfish could pose potential dangers.
The mussel and oyster samples were collected from the Chichester Harbor on the south coast of England by researchers from the Universities of Portsmouth and Brighton. The oysters reportedly ...