Toward sustainable pearl-oyster culture, in a changing environment: Recent findings and issues from the POLYPERL project (2012–2015)

2016 ◽  
Vol 182 ◽  
pp. 227-228
Author(s):  
Nabila Gaertner-Mazouni ◽  
Gilles Le Moullac
Keyword(s):  
Pearl Oyster ◽  
Changing Environment ◽  
Oyster Culture

scholarly journals Marinomonas ostreistagni sp. nov., isolated from a pearl-oyster culture pond in Sanya, Hainan Province, China

2006 ◽  
Vol 56 (10) ◽  
pp. 2271-2275 ◽  
Author(s):  
Ken W. K. Lau ◽  
Jianping Ren ◽  
Natalie L. M. Wai ◽  
Simon C. L. Lau ◽  
Pei-Yuan Qian ◽  
...  
Keyword(s):  
Marine Bacterium ◽  
Gene Sequence ◽  
Novel Species ◽  
Sequence Similarity ◽  
Pearl Oyster ◽  
Rrna Gene ◽  
Hainan Province ◽  
Oyster Culture ◽  
Gene Sequence Analysis ◽  
Type Strains

A Gram-negative, aerobic, halophilic, neutrophilic, rod-shaped, non-pigmented, polar-flagellated bacterium, UST010306-043T, was isolated from a pearl-oyster culture pond in Sanya, Hainan Province, China in January 2001. This marine bacterium had an optimum temperature for growth of between 33 and 37 °C. On the basis of 16S rRNA gene sequence analysis, the strain was closely related to Marinomonas aquimarina and Marinomonas communis, with 97.5–97.7 and 97.1 % sequence similarity, respectively. Levels of DNA–DNA relatedness to the type strains of these species were well below 70 %. Analyses of phylogenetic, phenotypic and chemotaxomonic characteristics showed that strain UST010306-043T was distinct from currently established Marinomonas species. A novel species with the name Marinomonas ostreistagni sp. nov. is proposed to accommodate this bacterium, with strain UST010306-043T (=JCM 13672T=NRRL B-41433T) as the type strain.

scholarly journals Redescription of Larval Development in Cultured Pearl Oyster Pinctada maxima

2018 ◽  
Vol 23 (2) ◽  
pp. 109
Author(s):  
Jeane Siswitasari Mulyana ◽  
Achmad Farajallah ◽  
Yusli Wardiatno
Keyword(s):  
Developmental Stage ◽  
Larval Development ◽  
Shell Length ◽  
Shell Height ◽  
Pearl Oyster ◽  
Oyster Culture ◽  
Veliger Larva ◽  
Pinctada Maxima

Larval development plays a major role in efficient pearl culture. The cultured larvae will be later used for recipient and donor oysters in cultured pearl production. Larval developmental stage of silver lip pearl oyster Pinctada maxima has been reported by several studies. Those studies used female and male oyster parents directly taken from natural habitat.This study aimed to redescribe larval development of P. maxima from commercial pearl oyster culture farm in Indonesia. Larval development of this species whose parents are originated from selected groups in the pearl culture farm has not been reported yet, thus it is necessary to be described. This species undergoes specific larval developmental stage. The larvae were observed under microscope, and then the average shell length (SL) and shell height (SH) were measured. D-shaped veliger larva (77.4±0.3 µm SL; 65.4±1.1 µm SH) appeared 20 h after fertilization. Tenday-old larva (156.2±2.8 µm SL; 149.5±5.6 µm SH) had developed umbo region so it was called umbonal larva. Umbonal larva then developed further into plantigrade larva (411.3±9.8 µm SL; 380.5±6.9 µm SH) in 25 days after fertilization. Developmental stage and larval sizein P. maxima is similar with those observed in P. fucata and P. margaritifera. Keywords: growth, larva, plantigrade, shell, umbo, veliger

scholarly journals Prakiraan Kesuburan Perairan Bali Dari Citra Satelit [Forecast Fertility Bali Waters From Satellite Imagery]

2019 ◽  
Vol 4 (1) ◽  
pp. 81
Author(s):  
Sony Angga Satrya, Abdul Manan
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
Coastal Area ◽  
Satellite Image ◽  
Image Data ◽  
Pearl Oyster ◽  
Sea Surface ◽  
Oyster Culture ◽  
Sensing Technology ◽  
Terra Modis

Abstract Aplication Ocean Remote Sensing technology to many use for field fisheries, once use this technology in forecast fertility water. The aim of this study was to determine the feasibility of Bali coastal area for cage of pearl oyster culture. The method used is a descriptive method of data collection. Satellite image processing activities Aqua/Terra Modis starting with the collection of satellite image data from the database NASA via OceanColor Web site, the selection of a clean image data, and than download of satellite images. The first stages of image data processing are used software ENVI 4.7, with procedures are coloring the image, limiting the minimum and maximum temperatures and sea surface chlorophyll-a, and classifiying of the image based on the value of sea surface temperature. Sea surface temperature parameter determine the location of the cage of pearl oysters (Pinctada maxima) culture. Suitability of the location of the cage of pearl oyster culture on Bali coastal area, at coordinates 8° 33' 00.97 " - 8° 42' 05.30" South Latitude and 115° 18' 03.40 " - 115° 39 ' 03.21" East Longitude. Based on geographical, that the location in the southeastern Bali coastal area and on the northern area of Nusa Pennida island.

Pearl Oyster Culture

2008 ◽  
pp. 231-272 ◽  
Author(s):  
Paul C. Southgate
Keyword(s):  
Pearl Oyster ◽  
Oyster Culture

scholarly journals The influence of genetic variability on the growth survival rates and quality of pearls for Akoyagai pearl oyster culture

2016 ◽  
Vol 82 (5) ◽  
pp. 727-736 ◽  
Author(s):  
TAKUYA MORI ◽  
KAZUSHI ODAWARA ◽  
YUKI ONO ◽  
MAKI MOTOMIYA ◽  
MOTOHIRO TAKAGI
Keyword(s):  
Genetic Variability ◽  
Survival Rates ◽  
Pearl Oyster ◽  
Oyster Culture

Nutrient fluxes between water column and sediments: Potential influence of the pearl oyster culture

2012 ◽  
Vol 65 (10-12) ◽  
pp. 500-505 ◽  
Author(s):  
Nabila Gaertner-Mazouni ◽  
Elise Lacoste ◽  
Alain Bodoy ◽  
Lisa Peacock ◽  
Martine Rodier ◽  
...  
Keyword(s):  
Water Column ◽  
Pearl Oyster ◽  
Nutrient Fluxes ◽  
Potential Influence ◽  
Oyster Culture

A TEM study of the interface between organic matrix and aragonite in a biological hard tissue, nacre

1992 ◽  
Vol 50 (2) ◽  
pp. 1024-1025
Author(s):  
Jun Liu ◽  
Katie E. Gunnison ◽  
Mehmet Sarikaya ◽  
Ilhan A. Aksay
Keyword(s):  
Mechanical Properties ◽  
Ion Beam ◽  
Laminated Composite ◽  
Organic Matrix ◽  
Pearl Oyster ◽  
Interfacial Structure ◽  
Interfacial Region ◽  
Thin Sections ◽  
Organic Layers ◽  
Transmission Electron

The interfacial structure between the organic and inorganic phases in biological hard tissues plays an important role in controlling the growth and the mechanical properties of these materials. The objective of this work was to investigate these interfaces in nacre by transmission electron microscopy. The nacreous section of several different seashells -- abalone, pearl oyster, and nautilus -- were studied. Nacre is a laminated composite material consisting of CaCO3 platelets (constituting > 90 vol.% of the overall composite) separated by a thin organic matrix. Nacre is of interest to biomimetics because of its highly ordered structure and a good combination of mechanical properties. In this study, electron transparent thin sections were prepared by a low-temperature ion-beam milling procedure and by ultramicrotomy. To reveal structures in the organic layers as well as in the interfacial region, samples were further subjected to chemical fixation and labeling, or chemical etching. All experiments were performed with a Philips 430T TEM/STEM at 300 keV with a liquid Nitrogen sample holder.

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