Ostrea gigas

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Noun1.Ostrea gigas - a large oyster native to Japan and introduced along the Pacific coast of the United States; a candidate for introduction in Chesapeake Bay
oyster - marine mollusks having a rough irregular shell; found on the sea bed mostly in coastal waters
genus Ostrea, Ostrea - type genus of the family Ostreidae
References in periodicals archive ?
The role of chemical stimulation in the spawning reactions of Ostrea virginica and Ostrea gigas.
The oyster Crassostrea sikamea was first identified in Ariake Bay, Kumamoto Prefecture, Japan, by Amemiya (1928) as a variety of the Japanese or Pacific oyster, Ostrea gigas vat.