Finding Pearls in London's Oysters

PolicyMiner: From Oysters to Pearls

Today, a historically unprecedented volume of data is available in the public domain with the potential of becoming useful for researchers. More than at any other time before, political parties and governments are making data available such as speeches, legislative bills and acts. However, as the size of available data increases, the need for sophisticated tools for web-harvesting and data anal...

Vibrio vulnificus oysters: pearls and perils.

Vibrio vulnificus is a naturally occurring bacterium found ubiquitously in coastal waters. Infection with this organism, which is often associated with eating raw oysters, is the leading cause of seafood-related deaths in the United States. This article reviews the current scientific literature on this potentially lethal pathogen and discusses the prognosis, treatment, and prevention of V. vuln...

Stable Isotope and Chemical Composition of Pearls: Biomineralization in Cultured Pearl Oysters in Ago Bay, Japan

The δ18O, δ13C and trace element composition of pearls collected from Ago Bay, Japan, were investigated in order to evaluate biomineralization in the cultured pearl oyster (Pinctada fucata martensii). The oxygen isotopic data suggest that the pearls were produced around 23–24°C, mainly in June to early July, which is consistent with their occurrence in the field. Therefore the pearls were produ...

Fluorescence from Pearls to Distinguish Mother Oysters Used in Pearl Culture

Fluorescence from Pearls of Freshwater Bivalves and Its Contribution to the Distinction of Mother Oysters Used in Pearl Culture

By measuring the fluorescence spectra of pearls from various species of mother oysters, a distinction has already become possible as to whether the pearls are from Pinctada fucata, Pinctada maxima, Pteria penguin or Pinctada margaritifera. In this study, the fluorescence of pearls from freshwater bivalves was measured. The results have made it possible to distinguish freshwater pearls from the ...