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Saccostrea glomerata is an oyster species belonging to the family Ostreidae. [5] It is endemic to Australia and New Zealand. [6] [7] In Australia, it is known as the Sydney rock oyster and is commercially farmed. In New Zealand, where the species is no longer farmed, it is known as the New Zealand rock oyster or Auckland oyster.
Brood size is between 250,000-300,000, with larvae around 187 micromillimeters long and eggs around 100–105 micromillimeters in diameter. The amount of larvae produced is dependent on the maternal oyster's size and the amount of reserved nutrients she has at the time of egg fertilization.
Oyster is the common name for a number of different families of salt-water bivalve molluscs that live in marine or brackish habitats. In some species, the valves are highly calcified , and many are somewhat irregular in shape.
Pinctada maxima is a species of pearl oyster, a marine bivalve mollusk in the family Pteriidae, the pearl oysters. There are two different color varieties: the Gold-lipped oyster and the Silver-lipped oyster. These bivalves are the largest pearl oysters in the world.
By and large there was very little development within the type, other than the minor improvements already listed. There was a small trend towards increasing size; bugeyes averaged around 55 feet (17 m) in length, but some later examples were well over 80 feet (24 m) long.
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The optimum salinity for Pacific oysters is between 20 and 35 parts per thousand (ppt), and they can tolerate salinities as high as 38 ppt; at this level, however, reproduction is unlikely to occur. [10] The Pacific oyster is also a very temperature tolerant species, as it can withstand a range from −1.8 to 35 °C. [10]
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