Download or read book Precious Corals written by Sydney John Hickson and published by . This book was released on 1905 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Precious Corals Fisheries Western Pacific written by and published by . This book was released on 1979 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Precious Coral and the Legacy of the Coral Road written by Iwasaki Nozomu and published by Cambridge Scholars Publishing. This book was released on 2021-06-14 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drawing on diverse perspectives, this collection of 12 essays and around 150 colour illustrations explores the history and mysteries of the “Coral Road” from the Mediterranean to Japan. From Italy, with its ancient traditions of deep-sea coral fishery, production and trade, the reader is transported to Tibet and India, where coral has long been revered as a Buddhist treasure and amulet. The focus then moves to Japan, with the book highlighting the vivid red coral “tree” of folklore and festivals and the lavish use of the exotic gemstone in the magnificent accessories and craftwork of the Edo Period (1603–1868), before tracing the history of Japanese coral fishery, trade and production in modern times. Inspired by an urgently perceived need to preserve the legacy of precious coral for future generations, this retrospective, yet forward-looking, book will appeal to a wide readership, from marine ecologists to economic, social, cultural and religious historians, as well as scholars of fashion and design.
Download or read book Guide to the Identification of Precious and Semi precious Corals written by Ernest W. T. Cooper and published by . This book was released on 2011 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Western Pacific Precious Corals PMP written by and published by . This book was released on 1977 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Global Report on the Biology Fishery and Trade of Precious Corals written by Food and Agriculture Organization and published by Food & Agriculture Org.. This book was released on 2019-08-09 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document has been prepared by the Food and Agriculture Organization of the United Nations (FAO), in accordance with a request from CITES (CoP Decision 17.191 on Precious corals, for consideration at the 30th meeting of the Animals Committee). The report concerns precious (red, pink, white and black) coral species within the hexacoral order Antipatharia, and the octocoral family Coralliidae. According to the requirements of CITES Decision 17.191, the study considers all available data and information on the biology, population status, use and trade in each species, including the identification of gaps in such data and information. It contains information on the management and harvest regulation schemes for these coral species, with the aim of considering the effectiveness of their management and conservation. The report intends to inform the CITES parties of the status of the management and trade of precious corals, in order to provide guidance on the actions needed to enhance the conservation and sustainable use of precious corals.
Download or read book Precious Coral written by Luwei Fan and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Precious coral, with attractive pink-to-red colour, has been used for ornamental purposes for several thousand years. According to the related science, attractive red precious corals material, are defined to the class Anthozoa, subclass Octocorallia, order Alcyonacea, suborder Scleraxonia, and family Coralliidae in zootaxy. About 30 species are discovered in Coralliidae family compared to the huge Cnidaria phylum. Corallium rubrum, Corallium japonicum, and Corallium elatius are the three main species in Coralliidae family used for jewelry material in the gem market. The purpose of this chapter is to show the nature of animals in Coralliidae family, analyze the nondestructive test methods to identify the natural species from the imitations, and discuss the origin of colour and the interactions in between the organic matrix and mineral. The chapter was organized in six parts. The first part reviews the history of precious coral used for different purposes by humans and then describes exact affiliation of precious coral on zoology and taxonomy. The second part deals with the biology and formation of precious coral. The paragraph also presents the information about Coralliidae colonies' sexual maturity, life span, growth rate, and mortality. The trade market and conservation are also summarized in this part. The gemological properties of C. rubrum, C. japonicum, and C. elatius, the main species in precious coral market, are introduced in the third part. As a consequence, an effective and nondestructive identification method to distinguish natural precious corals from their imitations was stated with Raman spectra as demonstrated in the fourth part. In the fifth part, the origin of precious coral colour based on the results of Raman scattering measurements and PeakFit analysis is demonstrated. Three different excitation wavelengths (785, 633, and 514 nm) were used for the same samples at the same points. The result shows that all of the samples are coloured by a mixture of pigments. Different colours are explained by different mixtures, not by a single pigment. Organic composition, even present in a small amount, plays an important role in the colour of precious corals. The sixth part concludes the text by presenting what we have learned from the experimental data of microscope, SEM, TEM, and EBSD. The spatial relationship between the organic matrix and mineral components is determined by SEM observation on decalcification-treated samples. By integration of the results from nanometer to centimeter-scale detections, a hierarchical structure of precious coral is revealed. In the skeleton of precious coral, building blocks are arranged into several hierarchical levels of oriented modules. The modules in each hierarchical level assemble into larger unit that comprises the next higher level of the hierarchy. Precious coral, as a member of biomineral family, assembled skeleton as a delicate arrangement of a hierarchy of crystals with well-defined orientations under the control of organic matrix. Organic matrix works in both colour pigment and architecture field for the precious coral.
Download or read book Toward an Ecosystem Approach for the Western Pacific Region from Species based Fishery Management Plans to Place based Fishery Ecosystem Plans written by and published by . This book was released on 2009 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Commercial Potential of Precious Corals in Micronesia written by Richard W. Grigg and published by . This book was released on 1975 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Commercial Potential of Precious Corals in the Western Caroline Islands Micronesia written by Richard W. Grigg and published by . This book was released on 1975 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oceanography and Marine Biology written by R. N. Gibson and published by CRC Press. This book was released on 2010-05-12 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oceanography and Marine Biology: An Annual Review, Volume 48
Download or read book Where Corals Lie written by John Malcolm Shick and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: For millennia corals were a marine enigma confounding classification and occupying a space between the animal and vegetable kingdoms. Ultimately their animal and symbiotic natures were recognized, and they remain the focus of intense fascination and research. The danger to seafarers posed by unseen underwater coral reefs led to their association with death and interment that has figured in literature, poetry, music and film. The bright redness of precious Mediterranean coral was associated with blood, including coral's gory origin in European and Indian mythology, and its place in religion. Corals have long been prized as jewellery and ornament, and were a feature of many Kunstkammer collections during the Renaissance. Seen as "rainforests of the sea", coral reefs have become greenly emblematic of fragile marine biodiversity, warning of human-driven global climate change. This book uniquely treats the many manifestations of corals in biology and geology; how diverse corals came to figure in art, expeditionary accounts, medicine, folklore, geopolitics, and international trade; and corals as builders of islands and protectors of coastlines, and as building materials themselves. Exceptionally illustrated with a wide range of natural history images, underwater photographs and fine art, this book provides a unique resource for all interested in ocean environments and the cultures that have flourished there.
Download or read book Precious Corals Prospecting Strategies for the South Pacific Region written by John Reed Harper and published by . This book was released on 1988 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Corals in a Changing World written by Carmenza Duque and published by BoD – Books on Demand. This book was released on 2018-03-28 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corals comprise a wide variety of colonial marine invertebrates belonging to the Phylum Cnidaria. Their polyps form the most colorful, complete, and diverse communities on the Earth resembling underwater cities, commonly called coral reefs, which host a wide variety of invertebrates and fish species. They are highly productive ecosystems, contribute to the health of the biosphere, and offer a good number of economic and ecological services to coastal populations and to many people around the world. However, due to a diverse number of natural and anthropogenic stressors, corals have shown a severe decline over the past few decades. Being aware of the importance and relevance of the facts described, the book "Corals in a Changing World" offers new scientific information regarding the actual status and, in some cases, the resilience state of coral reef systems. Timely information is critical for managers and decision makers to implement sustainable management measures according to the ecological condition of coral reefs. In addition, the book also discusses the use of well-maintained coral microcosms to provide a good basis for performing experiments with natural fluctuations and to present studies dedicated to the coral diversity characterization and to their importance as a source of important biological compounds, which could be converted into industrial products.
Download or read book Federal Register written by and published by . This book was released on 2014 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hawaii s Precious Corals written by Richard W. Grigg and published by . This book was released on 1977 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report and Transactions written by Manchester Microscopical Society and published by . This book was released on 1906 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
