Pearl Oysters


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Pearl Oysters

 

the common name for marine and fresh-water bivalve mollusks in whose mantles pearls can form. Marine oysters of the genus Pinctada, with round shells, live in tropical waters and are harvested for their pearls. In Japan they are raised. Freshwater oysters of the species P. margaritifera, with kidney-shaped shells, live in temperate climates in rivers with pure, clear water. The insides of oyster shells are covered with a thick layer of mother-of-pearl, which is used to make buttons and other articles.

REFERENCE

Ivanov, A. V. Promvslovve vodnye bespozvonochnve. Moscow, 1955.
References in periodicals archive ?
It is noteworthy that eggs of pearl oysters were not affected by Chattonella marina and Heterosigma akashiwo, which suggests the potential involvement of physical activation of the toxicity mechanism as suggested by Basti et al.
Round pearl production involves insertion of a single round nucleus into the gonad of a host pearl oyster, accompanied by a piece of the nacre secreting mantle tissue from a donor oyster (Taylor & Strack 2008).
Differential community development of fouling species on the pearl oysters Pinctada fucata, Pteria penguin and Pteria chinensis (Bivalvia, Pteriidae).
Molecular phylogeny of pearl oysters and their relatives (Mollusca, Bivalvia, Pterioidea).
The pearl oyster, Pinctada fucata, is a bivalve that is cultured for pearl production in Guangdong, Guangxi and Hainan of China.
The reproductive activity of the pearl oyster Pinctada imbricata Roding, 1798 (Pteriidae) in Gazi Bay, Kenya.
Also another key objective of the project is for the team to explore ways in which natural pearl oysters can be protected
Assessing the food source available for the pinctada margaritifera (South Pacific pearl oysters), these scientists examined the spatial-temporal patterns of the planktonic communities near the atoll over a year, as well as their reception among the oysters.
Cultured or farmed pearls from pearl oysters and freshwater mussels make up the majority on sale.
South Sea cultured pearls come from one of the world's largest pearl oyster (Pinctada maxima), which produces cultured pearls 15 mm and larger.
Doing all and everything to help foster a larger natural stock of the Gulf Pearl oyster is paramount to keeping a growing tide of pollution of the Gulf by GCC countries at bay.
Because there is not a culture method designed for pearl oysters in Santa Catarina State, Brazil, the usual methodology for the culture of juveniles of the Japanese oyster, Crassotrea gigas, was utilized.