Identification of Eastern Oyster Crassostrea virginica.

Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students.ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts.

Crassostrea virginica (Eastern oyster) Taxonomy - Crassostrea virginica (Eastern oyster) (SPECIES).

C. virginica is a benthic, broadcasting bivalve mollusc. C. virginica are abundant in shallow saltwater bays, lagoons and estuaries, in water 8 to 25 feet (2.5 to 7.5 m) deep. Oysters favour estuaries and embayments with low salinities and are intolerant of prolonged exposure to fresh water or marine conditions.

Disclaimer: ITIS taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. However, it is not a legal authority for statutory or regulatory purposes. While every effort has been made to provide the most reliable and up-to-date information available, ultimate legal requirements with respect to species are contained in.

Description Crassostrea virginica is elongate and broadly oval reaching up to 18 cm in length. The left valve is convex and sculptured with concentric ridges and lines whilst the right valve tends to be flat. There are a few irregular radiating ribs on the left valve which do not normally meet or indent the margin.

The eastern oyster, Crassostrea virginica, NEWT 6565 is closely related to the Pacific oyster and the partial amino acid sequence of its tropomyosin is identical to that from Crassostrea gigas. The native oyster or edible oyster, Ostrea edulis, NEWT 37623 is used to prepare the oyster extract, Rf290, for the Pharmacia CAP system.

Mapping and classifying Eastern Oyster (Crassostrea virginica) habitat in Copano Bay, Texas, by coupling acoustic technologies. The Texas coast is characterized by an extensive array of shallow turbid embayments containing expansive oyster habitats and is home to a large Eastern Oyster (Crassostrea virginica) fishery.

Crassostrea virginica infected with Tylocephalum metacestodes was examined histologically and histochemically. It appeared that the fibrous capsules enveloping the metacestodes began to develop when the invading parasite compressed the surrounding Leydig cells during migration. Thickening of intercellular fibrous material and infiltration of leukocytes then occurred.

Life cycle of the eastern oyster, Crassostrea virginica. ing veliger stage. At this stage the larva has a thin shell and feeds primarily on tiny algae. After 12 to 20 days, the larva develops a foot and eye spots and is referred to as a pediveliger or “eyed larva.” Pediveligers settle to the bottom and can crawl short dis-tances to find suitable sites for setting. Setting occurs when the.

Species synopsis: The eastern oyster, Crassostrea virginicais a sessile bivalve that is distributed along the eastern coast of the U.S. with a native range extending from Canada to Mexico. They have been introduced for aquaculture purposes to Japan, Great Britain, Australia, Hawaii, and the western coast of the United States (Sellers et al. 1984).

Hemolymph from the oyster, Crassostrea virginica, contains a lysozyme-like enzyme that may function as a defense mechanism against many of the same bacteria that cause human infections. The open circulatory system of the oyster enables an easy extraction of the lysozyme via a sterile syringe.