Results 21 to 30 of about 1,122 (175)

Sterols of the pearl-oyster. [PDF]

open access: yesNIPPON SUISAN GAKKAISHI, 1987
The sterols of pearl-oyster Pinctada martensi were isolated by preparative HPLC, and identi-fied by GC-MS and IR. The structures of 21 sterols were established. And the sterol composi-tion was determined by using GC. The major components were Δ5-sterols.
openaire   +3 more sources

Effects of sea depths and sizes of winged pearl oysters (Pteria penguin) on pearl culture [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2003
Environmental aspects and biology of pearl oysters are the important conditions affecting pearl production. In order to obtain commercially valuable pearl from winged pearl oysters, Pteria penguin, three sizes (shell-length) of the oysters: small (130 ...
Inthonjaroen, N.   +2 more
doaj  

Influence of water temperature and food on the last stages of cultured pearl mineralization from the black-lip pearl oyster Pinctada margaritifera. [PDF]

open access: yesPLoS ONE, 2018
Environmental parameters, such as food level and water temperature, have been shown to be major factors influencing pearl oyster shell growth and molecular mechanisms involved in this biomineralization process.
Oïhana Latchere   +7 more
doaj   +1 more source

Kinds of nucleus for effective pearl cultivation of the pearl oysters, Pinctada fucata [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2007
Seeding is the most important aspect of pearl cultivation, and appropriate nucleus can determine the quality of a pearl : nacre secretion and accumulation around the nucleus.
Kanjanachatree, K.   +2 more
doaj  

Low energy cost for cultured pearl formation in grafted chimeric Pinctada margaritifera

open access: yesScientific Reports, 2018
The pearl oyster is one of the rare animal models that support two distinct genomes, through the surgical graft process operated for culture pearl production.
Gilles Le Moullac   +2 more
doaj   +1 more source

Optimizing community-based pearl oyster (Pinctada margaritifera) spat collection strategies in the Fiji Islands

open access: yesAquaculture Reports, 2022
Fiji’s cultured pearl sector relies on wild collected oysters (Pinctada margaritifera) for culture stock. Most oysters are collected by community-based spat collection enterprises but there is little information on the optimal duration of spat collector ...
Charlene Erasito   +3 more
doaj   +1 more source

Integrated GC–MS- and LC–MS-Based Untargeted Metabolomics Studies of the Effect of Vitamin D3 on Pearl Production Traits in Pearl Oyster Pinctada fucata martensii

open access: yesFrontiers in Molecular Biosciences, 2021
Pearl oyster Pinctada fucata martensii is widely recognized for biomineralization and has been cultured for high-quality marine pearl production. To ascertain how dietary vitamin D3 (VD3) levels affect the features of pearl production by P. f.
Chuangye Yang   +19 more
doaj   +1 more source

An OD-Pearl for the EE-Oyster [PDF]

open access: yes, 2017
Explaining the basics of Lowlands-SocioTechnical Systems Design (L-STSD) to the Enterprise Engineering community is the first goal of this contribution in order to show how it fits with EE. Then, a first attempt is made to link L-STSD to basic EE insights gained so far.
openaire   +1 more source

Shell colors and microstructures of four pearl oyster species in the South China Sea

open access: yesAquaculture Reports, 2022
Wild marine pearl oyster shells have rich colors, and the color and gloss of pearls cultivated by pearl oysters are closely related to the pearl layer color of the mantle.
Zhenghua Deng   +7 more
doaj   +1 more source

Gametogenic Cycle of the Oysters Pinctada capensis (Sowerby III, 1890) and Saccostrea cucullata (Born, 1778) (Class Bivalvia) in Inhaca Island, Southern Mozambique: A Subsidy for Bivalve Culture in the Region

open access: yesDiversity, 2023
This study describes reproductive aspects of the Pinctada capensis (pearl oyster) and Saccostrea cucullata (rocky shore oyster) in Inhaca Island, southern Mozambique (Western Indian Ocean).
Mizeque Mafambissa   +5 more
doaj   +1 more source

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