Results 41 to 50 of about 5,074 (174)

Microplastics Affect Energy Balance and Gametogenesis in the Pearl Oyster Pinctada margaritifera. [PDF]

Environmental Science & Technology, 2018
Plastic pollution in the environment is increasing at global scale. Microplastics (MP) are derived from degradation of larger plastic items or directly produced in microparticles form (< 5 mm). Plastics, widely used in structures and equipment of pearl farming, are a source of pollution to the detriment of the lagoon ecosystem.
T. Gardon, C. Reisser, C. Soyez, V. Quillien, G. Le Moullac   +4 more
semanticscholar   +4 more sources

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

Aquaculture 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, Jing Sun, Haijun Wei, Wang Zhao, Mingqiang Chen, Youning Li, Gang Yu, Yu Wang   +7 more
doaj   +1 more source

Mitogenomic Analysis of Pterioidea (Bivalvia: Pteriomorphia): Insights into the Evolution of the Gene Rearrangements

Fishes, 2023
The complete mitogenomes of Pinctada albina and Pinctada margaritifera were sequenced in this study, with sizes of 23,841 bp and 15,556 bp, respectively.
Yu Zhang, Lu Qi, Fengping Li, Yi Yang, Zhifeng Gu, Chunsheng Liu, Qi Li, Aimin Wang   +7 more
doaj   +1 more source

Publisher Correction: Correlative chemical and elemental nano-imaging of morphology and disorder at the nacre-prismatic region interface in Pinctada margaritifera [PDF]

Scientific Reports
Brian T. O’Callahan, Amy Larsen, Sarah Leichty, John Cliff, Alex C. Gagnon, Markus B. Raschke   +5 more
doaj   +2 more sources

Evidence of a Scheduled End for Prism Growth in the Shell of Pinctada margaritifera: Closure of the Calcite Biomineralization Area by a Specific Organic Membrane

Minerals, 2023
The shell of the pearl oyster Pinctada margaritifera is made up of two layers: an outer layer of calcite prisms and an inner layer of aragonite tablets. Recent studies have shown that the calcite layer develops in a series of steps. We found that the end
J. Cuif, Cedrik Lo, Y. Dauphin
semanticscholar   +1 more source

Determination of Gender in the Pearl OysterPinctada margaritifera [PDF]

Journal of Shellfish Research, 2011
The pearl industry in French Polynesia is based on exploitation of natural stocks of the blacklip pearl oyster (Pinctada margaritifera). It generates an annual turnover of €90 million. Improvements in pearl quality need genetic studies to improve the populations.
Chavez-Villalba, Jorge, Soyez, Claude, Huvet, Arnaud, Gueguen, Yannick, Lo, Cedrik, Le Moullac, Gilles   +5 more
openaire   +3 more sources

Formation of the Outer Shell Layer in Pinctada margaritifera: Structural and Biochemical Evidence for a Sequential Development of the Calcite Units

Minerals, 2023
Calcite prismatic units that form the outer layers of “nacro-prismatic” Pelecypod shells are often used as biomineralization models due to their individual size, simple shape, and spatial arrangement.
J. Cuif, A. Fougerouse, Cedrik Lo, Y. Dauphin   +3 more
semanticscholar   +1 more source

Improved ocean-based nursery culture of blacklip pearl oyster (Pinctada margaritifera) juveniles in mesh baskets using cyanoacrylate adhesive

Aquaculture Reports, 2022
The blacklip pearl oyster, Pinctada margaritifera, supports well-established cultured pearl industries throughout the Pacific with various nursery culture methods used to on-grow juvenile oysters to a size suitable for pearl production. Locally-available
Paul C. Southgate, Thane A. Militz
doaj   +1 more source

Natural stocks of Pinctada margaritifera pearl oysters in Tuamotu and Gambier lagoons: New assessments, temporal evolutions, and consequences for the French Polynesia pearl farming industry.

Marine Pollution Bulletin, 2022
Knowledge of the status of the black-lipped pearl oyster Pinctada margaritifera populations is critical for the sustainability of the French Polynesia black pearl farming industry.
O. Bionaz, R. Le Gendre, V. Liao, S. Andréfouët   +3 more
semanticscholar   +1 more source

Embryonic and larval development of Pinctada margaritifera (Linnaeus, 1758) [PDF]

Molluscan Research, 2003
We describe the developmental stages of the black-lip pearl oyster, Pinctada margaritifera (Linnaeus, 1758), larvae from fertilisation through embryonic development and larval growth in the laboratory at 28 ± 1°C. Larvae were anesthetised, fixed, critical-point dried and examined using a scanning electron microscope.
Doroudi, M S, Southgate, Paul C
openaire   +3 more sources