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  2. Oystering machinery - Wikipedia

    en.wikipedia.org/wiki/Oystering_machinery

    Filters have different jobs, including making sure there is algae to feed the oyster larvae and cleaning the water to maintain a suitable environment for their growth. In addition to the nursery tank system, small boats and rafts made in Italy are used to gather oysters that cannot be reached by bare foot.

  3. Oyster farming - Wikipedia

    en.wikipedia.org/wiki/Oyster_farming

    Oyster farming is an aquaculture (or mariculture) practice in which oysters are bred and raised mainly for their pearls, shells and inner organ tissue, which is eaten. Oyster farming was practiced by the ancient Romans as early as the 1st century BC on the Italian peninsula [1] [2] and later in Britain for export to Rome. The French oyster ...

  4. Magallana bilineata - Wikipedia

    en.wikipedia.org/wiki/Magallana_bilineata

    Magallana bilineata, commonly known as the Philippine cupped oyster or slipper oyster, is an economically important species of true oyster found abundantly in the western Pacific Ocean, from the Philippines to Tonga and Fiji. In 2020 an exotic population was discovered in north-east Australia. [2]

  5. Food grading - Wikipedia

    en.wikipedia.org/wiki/Food_grading

    Food grading involves the inspection, assessment and sorting of various foods regarding quality, freshness, legal conformity and market value. [1] [2] Food grading is often done by hand, in which foods are assessed and sorted. [1] [2] Machinery is also used to grade foods, and may involve sorting products by size, shape and quality.

  6. Pinctada maxima - Wikipedia

    en.wikipedia.org/wiki/Pinctada_maxima

    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.

  7. Colour sorter - Wikipedia

    en.wikipedia.org/wiki/Colour_sorter

    Common belt type machine, model: 300 mm belt width, 600 mm belt width, 1000 mm belt width, 1200 mm belt width, 2000 mm belt width [9] Chute-type color sorters are commonly used for food, as prices are lower, capacities are higher, and products can be seen more easily from both sides, which is important when a dehulled grain has hull only on one ...

  8. Skipjack (boat) - Wikipedia

    en.wikipedia.org/wiki/Skipjack_(boat)

    Skipjack H.M. Krentz and pushboat. The skipjack arose near the end of the 19th century. Dredging for oysters, prohibited in 1820, was again made legal in 1865. Boats of the time were unsuitable, and the bugeye developed out of the log canoe in order to provide a boat with more power adapted to the shallow waters of the oyster beds.

  9. Pinctada - Wikipedia

    en.wikipedia.org/wiki/Pinctada

    Black South Sea pearls, or Tahitian pearls come from the black-lip oyster; gold and silver South Sea pearls from the gold-lip and silver-lip oysters; and Akoya cultured pearls from Pinctada fucata martensii, the Akoya pearl oyster. Pearls are also obtained in commercial quantities from some species of the closely related winged oyster genus Pteria.

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