''Pinctada maxima'' is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

pearl oyster ''Pinctada'' is a genus of saltwater oysters, marine bivalve mollusks in the family Pteriidae. These pearl oysters have a strong inner shell layer composed of nacre, also known as "mother of pearl". Pearl oysters are not closely related to ei ...

, a

marine Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (disambiguation) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military * ...

bivalve Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bival ...

mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...

in the family

Pteriidae Pteriidae, also called the feather oysters, is a family of medium-sized to large saltwater clams. They are pearl oysters, marine bivalve molluscs in the order Pteriida. Some of the species in this family are important economically as the sou ...

, the pearl oysters. There are two different color varieties: the Silver-lipped oyster and the Gold-lipped oyster. These bivalves are the largest pearl oysters in the world. They have a very strong inner shell layer composed of

nacre Nacre ( , ), also known as mother of pearl, is an organicinorganic composite material produced by some molluscs as an inner shell layer; it is also the material of which pearls are composed. It is strong, resilient, and iridescent. Nacre is f ...

, also known as "mother of pearl" and are important to the cultured pearl industry as they are cultivated to produce South Sea pearls. The South Sea pearl or Philippine pearl was declared by

Philippine President The president of the Philippines ( fil, Pangulo ng Pilipinas, sometimes referred to as ''Presidente ng Pilipinas'') is the head of state, head of government and chief executive of the Philippines. The president leads the executive branch of t ...

Fidel Ramos Fidel Valdez Ramos (, ; March 18, 1928 – July 31, 2022), popularly known as FVR and Eddie Ramos, was a Filipino general and politician who served as the 12th president of the Philippines from 1992 to 1998. He was the only career military ...

as the national

gem A gemstone (also called a fine gem, jewel, precious stone, or semiprecious stone) is a piece of mineral crystal which, in cut and polished form, is used to make jewelry or other adornments. However, certain rocks (such as lapis lazuli, opal, a ...

in 1996 through Proclamation No. 905. The oyster and pearl are depicted on the reverse side of the Philippine

New Generation Currency Series The New Generation Currency (NGC) Series is the name used to refer to Philippine peso Banknotes of the Philippine peso, banknotes issued since 2010 and Coins of the Philippine peso, coins issued since 2018 (2017 for the Philippine five peso coin, ...

1,000-peso bill.

Description

''Pinctada maxima'' oysters grow very large, up to in diameter. The two color varieties have different coloration in the outer edge of the interior. This mother of pearl or nacre is responsible for the color of the pearls that the oyster can produce. Water temperature, plankton and sediments determine which color variety is more common in a given area.

Pearl farming (Perliculture)

''Pinctada maxima'' produces South Sea pearls in colors ranging from white, silver, champagne, gold. ''

Pinctada margaritifera ''Pinctada margaritifera'', commonly known as the black-lip pearl oyster, is a species of pearl oyster, a saltwater mollusk, a marine bivalve mollusk in the family Pteriidae. This species is common in the Indo-Pacific within tropical coral ree ...

'' produces South Sea pearls commonly referred to as Tahitian pearls or black pearls which in fact come in color hues including gray, platinum, charcoal, aubergine, peacock. Currently south sea pearls are cultured primarily in Australia, Indonesia, Tahiti and now, the Philippines. Because these pearl oysters are so large, a much larger nucleus than usual can be used in culturing. Commercial pearl farming in Australia is mostly centered around the coastal waters of Broome, 17.9614 degrees South and 122.2359 degrees East, located in the Kimberley region of Western Australia. Best known and valued for their white/silver with pink hues from the silver-lipped pearl oyster, Australian South Sea Pearls can grow beyond 18mm – 20mm in diameter, with a typical size of 10mm – 13mm when harvested following a two-year gestation. South Sea pearls farmed in the Philippines, typically produce golden pearls from the gold-lipped pearl oyster, which are currently experiencing a surge in popularity, resulting in increased market-demand, particularly in China. The Tahitian or black pearl comes from the black-lipped pearl oyster, produced from the waters surrounding

Tahiti Tahiti (; Tahitian ; ; previously also known as Otaheite) is the largest island of the Windward group of the Society Islands in French Polynesia. It is located in the central part of the Pacific Ocean and the nearest major landmass is Austr ...

and the French Polynesian archipelago.

Culinary use

Pearl meat is the adductor muscle of the ''Pinctada maxima'' pearl oyster. Wild caught Australian pearl meat is MSC certified, recognising this delicacy as a sustainable seafood which can be traced to an environmentally sustainable source. In recent years, Australian pearl meat has been adopted by some of the world’s leading western chefs as an exclusive, rare ingredient, with a mere six tons sourced annually. A translucent, scallop-sized medallion, pearl meat is sweet and firm. Described as a cross between calamari and lobster in taste, the flavour profile varies significantly depending on preparation. Prized as a delicacy in Asia for centuries and highly regarded for its medicinal properties, pearl meat is an excellent source of

Omega 3 Omega−3 fatty acids, also called Omega-3 oils, ω−3 fatty acids or ''n''−3 fatty acids, are polyunsaturated fatty acids (PUFAs) characterized by the presence of a double bond, three atoms away from the terminal methyl group in their chem ...

. It is high in protein and contains no trans-fats. It also contains

vitamin A Vitamin A is a fat-soluble vitamin and an essential nutrient for humans. It is a group of organic compounds that includes retinol, retinal (also known as retinaldehyde), retinoic acid, and several provitamin A carotenoids (most notably bet ...

and

vitamin E Vitamin E is a group of eight fat soluble compounds that include four tocopherols and four tocotrienols. Vitamin E deficiency, which is rare and usually due to an underlying problem with digesting dietary fat rather than from a diet low in vitami ...

, as well as

calcium Calcium is a chemical element with the symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar to ...

iron Iron () is a chemical element with symbol Fe (from la, ferrum) and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, right in f ...

zinc Zinc is a chemical element with the symbol Zn and atomic number 30. Zinc is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodi ...

, and

iodine Iodine is a chemical element with the symbol I and atomic number 53. The heaviest of the stable halogens, it exists as a semi-lustrous, non-metallic solid at standard conditions that melts to form a deep violet liquid at , and boils to a vi ...

References

External links

{{Taxonbar, from=Q3658757 Pteriidae Bivalves described in 1901 Molluscs of the Philippines Bivalves of Australia Fauna of Indonesia Fauna of Fiji National symbols of the Philippines