Introduction the persian gulf pearl oyster pinctada radiata leach, 1814, an indopacific species, is a member of the family pteriidae southgate, 2008. Dna techniques applied to the identification of pinctada. The superfamily pterioidea is a morphologically and ecologically diverse lineage of epifaunal marine bivalves distributed throughout the tropical and subtropical continental shelf regions. The formation and growth of the prismatic layer of pinctada. Osa red fluorescence lamellae in calcitic prismatic layer. Pinctada radiata, the persian gulf pearl oyster, is one of the native and valuable species of this area which has been used as a heavy metal indicator in several studies 911. Bulletin of environmental contamination and toxicology, 60. Pinctada definition is a genus of bivalve mollusks family pteriidae containing the principal pearl oysters. This variation can be related to phenotypic plasticity, genetic variability or a combination of both.
Thus, studying the gonadal maturation of the pearl oyster has been. Blacklip pearl oyster pinctada margaritifera by simon ellis regional aquaculture extension agent college of micronesia, land grant college program, pohnpei, fsm and maria haws, ph. Identification of yellow cultured pearls from the black. During the early part of the 20th century, nearly half the qatar population was involved in the pearl oyster industry. Pinctada maculata gould, 1850 pinctada margaritifera linnaeus, 1758 blacklip oyster. Genomewide comparisons reveal evidence for a species complex. Thirty oyster samples from each site, site one where dead oysters were located, site two which is two kilometers away from site one and the control site which is ten kilometers away from site one were collected from alkhiran area where a massive number of dead oysters were. Pinctada margaritifera definition of pinctada margaritifera.
Evolutionary patterns in pearl oysters of the genus pinctada. The first step in the formation of a prism is similar to that observed in the formation of nacre, namely, the elaboration of an electrondense lamella that serves as the internal boundary of the future prism. The count includes downloads for all files if a work has more than one. This group includes commercially important pearl culture species and model organisms used for medical studies of biomineralization. Print iconographia zoologica special collections university of amsterdam ubainv0274 075 11 0005. Population structure and patterns of genetic variation in a. Table 1 list of specimens used in this study, sample locations and genbank accession numbers species codes location genbank. Pdf the pearl oyster, pinctada radiata, shows great variation in shell morphology throughout its. Pearl oysters of this family, because of their capacity of producing pearls, have always been attractive for commercial. Abstract the atlantic pearloyster, pinctada imbricata, is biologically and economically important.
Misidentification pinctada margaritifera serbetis, 1963. Its range extends as far north as japan and as far south as the australian state of victoria. Meleagrina radiata deshayes tillier and bavay, 1905 pinctada vulgaris schumacher tomlin, 1927 avicula chemnitzii philippi, 1849 meleagrina occa reeve, 1857 pallary, 1912. Osa red fluorescence lamellae in calcitic prismatic. Pinctada imbricata radiata, pearl oyster, salinity tolerance. Pdf preliminary results on rayed pearl oyster pinctada. Pinctada margaritifera is a protandrous hermaphrodite. The initiation of prisms occurs in the proximal region of the outer surface of the outer mantle fold in the pallial space bounded externally by the periostracum. Growth of the rayed pearl oyster, pinctada radiata,in suspended culture at urla karantina island, turkey selcuk yigitkurt1, aynur lok, ali k. Pearl oysters reproduce by spawning, releasing their gametes into the open water for fertilization. Pinctada imbricata is a filterfeeding bivalve that grows in a diverse geographic range urban, 2000. Nakhiloo, 3 nayband where only pinctada radiata can be found. The pearl oyster, pinctada radiata, shows great variation in shell morphology throughout its distribution.
Text is available under the creative commons attributionsharealike license. First evidence of establishment of the rayed pearl oyster. Issel, 1869 meleagrina savignyi monterosato, 1884 meleagrina conomenosi monterosato, 1884. Pinctada margaritifera synonyms, pinctada margaritifera pronunciation, pinctada margaritifera translation, english dictionary definition of pinctada margaritifera. The pof targets pinctada maxima silver lipped pearl oyster in wa waters, from exmouth gulf to the northern territory nt border. Preliminary results on rayed pearl oyster pinctada radiata leach 1814 spat collection at karantina island in izmir bay turkey.
The study of pearl oyster pinctada radiata fishery in bandare moqam and nakhiloo. Pinctada hotels and resorts hotel and resort management. In mediterranean, it colonized the whole eastern part. Atlantic pearloyster pinctada radiata leach, 1814 description. Assessment of toxic metals concentration using pearl oyster. Gill histopathological effects of pahs on adult pearl. Pearl oyster specialist, pearl research and training program, university of hawaii, department of agriculture, forestry and natural resources, hilo, hawaii, usa. Alhashem department of biological sciences, faculty of science, kuwait university, safat, state of kuwait abstract the hazardous effect of water pollution on the histopathology of gill organ of the pearl oyster, pinctada radiata was studied with respect to polycyclic aro. Comparative morphometric study of the invasive pearl oyster.
This is followed by a round nucleus, which is pushed onto the mantle tissue so that they touch. The aim of this study was to find out whether soft tissue or shell of p. Atlantic pearloyster marine species identification portal. For method a six pearls of each pinctada species were analyzed using destructive dna extraction methods pmr16 for p. Pinctada radiata occurs throughout the indopacific and mediterranean sea at all depths, though it is generally found between 5 and 25 metres 16 and 82 ft. This page was last edited on 26 february 2019, at 15.
The gel electrophoresis step of the polymerase chain reaction pcr process is captured here. Pinctada radiata, gonad maturation, histology, image analyzer 1. For method b a blind test based on destructive dna extraction was. Media in category pinctada imbricata the following 81 files are in this category, out of 81 total.
Pinctada margaritifera reaches sexual maturity around 2 years of age which is also around the same time the animal changes its sex. Trial farming the akoya pearl oyster, pinctada imbricata. Pdf sympatric morphological and genetic differentiation of. Pdf the potential impacts of low and high salinities on salinity. Issel, 1869 meleagrina savignyi monterosato, 1884 meleagrina conomenosi. Invasive pinctada imbricata radiata were found at mljet island in the eastern adriatic sea specimens were observed on the residual pieces of the abandoned fish cage farm. Pinctada radiata brachidonta variabilus eriphia verrucosa a zn 2062006 382006 5102006 25112006 2012007 1532007 2252007 272007 a gg. We found that prismatic layers are calcitic prismatic cp layers with rich organic substances.
Sympatric morphological and genetic differentiation of the. Pinctada radiata, commonly known as the atlantic pearloyster or the gulf pearl oyster is a species of pearl oyster distributed throughout the indopacific. Egypt 1878, tunisia 1895, lebanon 1972 up to adriatic 1996. The pearl oyster, pinctada radiata, shows great variation in shell morphology. Population structure and patterns of genetic variation in. These oysters have a strong inner shell layer composed of nacre, also known as mother of pearl. Pinctada mazatlanica hanley, 1856 pinctada nigra gould, 1850 pinctada petersii dunker, 1852 pinctada radiata leach, 1814 atlantic pearloyster now accepted as. The results showed that the cited sites g, f, e, d, c, b, a were rich with specific composition of bivalvia, and the total number of species determined at all cited sites reached up to 68 species. The blacklip pearl oyster pinctada margaritifera is a marine bivalve mollusc that has a broad indopacific distribution spanning 18,000 km fig. The pinctada species were successfully identified for 100% of tested pearls from p. Nonbeadcultured pearls from pinctada margaritifera. Thereafter, an increasing series of records of this species followed. Byssally attached to rocks, dead corals and various submerged objects, often forming large natural banks. Assessment of the western australia pearl oyster fishery.
Pearl oyster, pinctada radiata at alkhiran coast in kuwait mona a. Pinctada margaritifera has been cultivated into a major commercial species for the pearl industry. It has been imported for aquaculture purposes in some parts of the mediterranean sea zenetos et al. This was subsequently identified as the gulf pearloyster, pinctada radiata leach, 1814. Variations in trace metal concentrations in seawater and pearl oyster pinctada radiata from bahrain arabian gulf. Seasonal histological comparison of gonad and gametogenesis. Pdf growth of the rayed pearl oyster, pinctada radiata, in. Although a certain degree of confusion about its taxonomic status still exists temkin, 2010, cunha et al. Producing pearls using the blacklip pearl oyster pinctada margaritifera page 4 center for tropical and subtropical aquaculture publication number 141 december 1999 pearl oyster, through a small incision made by the technician. However, the fishery has undergone steady decline since the. Pdf sympatric morphological and genetic differentiation of the. Pdf salinity is one of the most consequential environmental stressors.
Three small areas in the western indian oceanthe persian gulf, red sea and gulf of mannarconsistently dominated the worlds pearl markets from antiquity until the advent of the cultured pearl industry in the 1920s. Most showed spectral features that suggest they were produced by the pinctada margaritifera mollusk, though some were beadcultured pearls were mixed in with the samples. While several studies have examined contemporary population structure and connectivity in p. Pinctada imbricata radiata leach, 1814 worldwide warm seas. Red fluorescence lamellae in prismatic layers of pinctada vulgaris shell were investigated. Pinctada maxima jameson, 1901 whitelip oyster or goldlip oyster. Pinctada is a genus of saltwater oysters, marine bivalve mollusks in the family pteriidae, the pearl oysters. Media in category pinctada the following 32 files are in this category, out of 32 total.
Fulltext downloads displays the total number of times this works files e. Pinctada imbricata radiata leach, 1814 is a species known as a pearl oyster, recorded for the first time in croatian waters in 2006, when two juvenile specimens were found in the northern part. The potential impacts of low and high salinities on. Note all names are according to data downloaded as described in manuscript, except for pinctada i.
Immature pearl oyster shells usually pinctada fucata or pteria penguin in japan and pinctada maxima in australia are reserved in barrels until maturation 2 to 3 years and, when the shells reach certain size, are implanted with a tiny polished sphere of motherofpearl. Pinctada margaritifera tropical marine bivalve found chiefly off eastern asia and pacific coast of north america and central america. Producing pearls using the blacklip pearl oyster pinctada. It attaches itself to various hard substrata, including rocks and wrecks. Molecular phylogeny of pearl oysters and their relatives. Collected in many areas of the indowest pacific for its edible muscle, nacreous shell and ability to develop pearls 348. Evolutionary patterns in pearl oysters of the genus. The study of pearl oyster pinctada radiata fishery in bandare. The formation and growth of the prismatic layer of.
Pdf sympatric morphological and genetic differentiation. In order to study the relative growth of the pearl oyster pinctada radiata in tunisia, a total of 330 individuals of this species were collected from. The pearl oyster, pinctada radiate, is a native species of persian gulf area, which has always been attractive for its ability of producing pearl. The earliest reported alien species that entered the mediterranean after only nine years from the opening of the suez canal was meleagrina sp. Gias bangkok laboratory examined the internal and spectroscopic features of 120 cultured pearl samples, all stated to be nonbeadcultured pearls of tahitian origin. Shallow water to 30m deep, attached to various supports, and often in clusters. It begins life as a male and later changes into a female. This variation can be related to phenotypic plasticity, genetic variability or a. Pinctada radiata leach, 1814 relevant synonyms meleagrina radiata deshayes tillier and bavay, 1905 pinctada vulgaris schumacher tomlin, 1927 avicula chemnitzii philippi, 1849 meleagrina occa reeve, 1857 pallary, 1912. On the upper surface are irregular ribs and concentric growth rings.
In the central zone of the gills of pinctada radiata, there were generally loosely packed vesicular cells and large extracellular spaces, often traversed by thin muscle fibers. The akoya pearl oyster, pinctada imbricata has been fished for pearls for centuries and is amongst the widest spread of the pearl oyster species. Genomewide comparisons reveal evidence for a species. Sympatric morphological and genetic differentiation of the pearl.
Pinctada species pinctada imbricata name synonyms avicula radiata leach, 1814 avicula radiata var. The pearl oyster pinctada imbricata radiata is an iconic species in qatar, representing an integral part of the nations cultural heritage and one of the main economic foundations upon which the nation developed. Impact of selected environmental pollutants on the. Spawning and larval culture of the pearl oyster pinctada. Recent morphological treatment of selected pterioideans and molecular. Semeds, xrd, and tgdta were utilized to characterize prismatic layers. Most of these pearls came from the ceylon pearl oyster, called bilbil by red sea pearl fishermen. Akoya oysters are found on areas of the eastern coastline of north and south america, the east coast of africa, the mediterranean, as well as throughout the indopacific. First record of pinctada radiata bivalvia, pteriidae.
Pinctada imbricata radiata leach, 1814 view list of all occurrence records for this taxon counting records view map of all occurrence records for this taxon counting records charts showing breakdown of occurrence records counting records biodiversity heritage library. The introduction and growing popularity of strands of multicolored cultured pearls was a bonus for cultivators of pearls from the p. Parts i and ii of this report provide an assessment of the p. Assessment of toxic metals concentration using pearl. Pdf on the occurrence of pinctada radiata mollusca. Excitation spectrum for red fluorescence determined by a spectrophotometer indicates that the fluorescent matter in the organic. The hazardous effect of water pollution on the histopathology of gill organ of the pearl oyster, pinctada radiata was studied with respect to polycyclic aromatic hydrocarbon contamination in alkhiran coast at kuwait. Molecular analyses confirmed presence of the three different haplotypes of p. L pcr tubes, which possibly contain amplified target dna samples, are aligned in the orange container in the middle.
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