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This measurement excludes the length of the caudal (tail) fin. [1] Total and fork length of a fish. Total length (TL) is the length of a fish measured from the tip of the snout to the tip of the longer lobe of the caudal fin, usually measured with the lobes compressed along the midline. It is a straight-line measure, not measured over the curve ...
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]
Its right valve is flat but has grooves. From a lateral view, the shell appears triangular. It is fairly small in comparison to other species, reaching a maximum length of 6 cm (2.4 in). The oyster is also a slow grower, taking three years to reach market size. [2] The adductor muscle scar is a dark purple color. [3] [5]
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The may be one (right) or two passages (left and right), or none, around the body between the adductor and hinge (termed either supramyal or promial passages). [6]: 125 Oysters are monomyarian, having one adductor muscle. This is the posterior of the ancestral pair; the anterior muscle is not present in post-larval stages.
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.
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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.