Results 51 to 60 of about 5,160 (177)
Aquaculture 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
Colour or no colour in the juvenile shell of the black lip pearl oyster, Pinctada margaritifera? [PDF]
Aquatic Living Resources, 2012 Pinctada margaritifera mollusc is cultivated in French Polynesia for the production of black pearls. For this study, the colour of juvenile samples (48 days old) was investigated in the visible range spectra (430–700 nm) using spectrophotometry. A first measurement was done with the soft parts still inside the shell (entire animal).
Trinkler, N. +4 more
openaire +3 more sources
Occurrence of black pearl, Pinctada margaritifera population in Vizhinjam bay [PDF]
, 2007 Twelve specimens of Pinctada margaritifera were collected from a depth of 4 m near the wave energy project of the Vizhinjam Bay. They were found attached to the rocks.
Anil, M K +4 more
core +1 more source
Morphological and molecular identification of pearl oysters along the Saudi coast of the Red Sea
Egyptian Journal of Aquatic ResearchThis study aimed to identify and differentiate the pearl oyster species along the Saudi coast of the Red Sea using morphology and molecular phylogeny.
Fatma A. Abdel-Razek +5 more
doaj +1 more source
Aquaculture Reports, 2018 Beaded cultured pearl farming is a lengthy aquaculture process, particularly when the pearl oysters are produced through a hatchery propagation system, and includes the key steps of artificial breeding, larval and spat rearing before graft operations can
Chin-Long Ky +2 more
doaj +1 more source
Journal of the World Aquaculture Society, Volume 57, Issue 5, October 2026.Abstract Kenya's aquaculture sector is at a pivotal stage, transitioning from a historical reliance on Nile tilapia and African catfish toward a more diversified production portfolio that integrates indigenous and emerging freshwater and marine species. This shift is increasingly recognized as essential to enhance climate resilience, food security, and
Jonathan Munguti +9 more
wiley +1 more source
Aquaculture Reports, 2018 Cultured pearl farming in Fiji relies on wild spat collection to supply the oysters used for pearl production. This supply can be inconsistent and a research program was implemented to determine recruitment of pearl oysters to spat collectors at sites ...
Pranesh Kishore +2 more
doaj +1 more source
Identification of calconectin, a calcium‐binding protein specifically expressed by the mantle of Pinctada margaritifera [PDF]
FEBS Letters, 2006 Nacre or mother‐of‐pearl in the shell of Pinctada margaritifera is composed of 95–99% calcium carbonate and 1–5% organic matrix. In this study, we developed an original technique to characterize the genes differentially expressed in nacre‐forming cells (NFC) by combining suppression subtractive hybridization (SSH), to establish a cDNA subtractive ...
Duplat, Denis +8 more
openaire +3 more sources
Spatial habitat patterning of the freshwater pearl mussel, Margaritifera margaritifera, in the River Rede, North East England. [PDF]
, 2011 Habitat degradation is prevalent in freshwater ecosystems and acts at multiple scales to impact biodiversity. It has severe consequences for the endangered freshwater pearl mussel (Margaritifera margaritifera). Due to this species’ ecological importance,
PERKINS, CHARLOTTE
core
Multiple Twinning in Nacre and Aragonite
Advanced Functional Materials, Volume 36, Issue 20, 9 March 2026.Electron backscatter diffraction map of a cluster of geologic aragonite, exhibiting single, double, and triple twins. The whole cluster is approximately 2 cm wide. Colors indicate crystal orientations, so that pixels where the a‐, b‐, and c‐axis is perpendicular to the image plane are green, red, and blue, respectively.
Connor A. Schmidt +7 more
wiley +1 more source