There are a number of bacteria that DO survive in harsh environments be it pH or temperature extremes or an environment that is very salty. Bacteria that don't survive in hars â¦ h conditions usually lose cell wall integrity and break apart, or lose all their intercellular fluid and shrivel up.
Akoya Pearls are the Classic Pearl Variety. The akoya pearl is a saltwater cultured pearl from the akoya oyster (Pinctada fucata martensii). Because akoya are the most abundant type of saltwater pearl with the longest cultured history, information on akoyas is abundant!
Kasumiga Pearls Types of pearls cultured in Lake Kasumiga, which is north of Toyko. Kasumiga is a trade mark protected name, but these pearls also called Kasumi Pearls. They come from the hybrid mussels Hyriopsis schlegelii X Hyriopsis cumingii and introduced to the market in 1990's in limited qualities.