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| economic importance of radiolaria: The Economic Importance of the Diatoms Albert Mann, 1917 |
| economic importance of radiolaria: Radiolaria Orvil Roger Anderson, 2012-12-06 The study of marine plankton has traditionally focused on those or ganisms that appeared to have obvious ecological significance in un derstanding the major patterns of biological productivity, trophic relations, community structure, and the dynamic interaction of living things with the physical environment. Not infrequently, this thrust has centered on the apparently most abundant and/or larger members of the plankton community, including significant primary producers such as the diatoms, nonthecate algae, and flagellates, or the major con sumers--copepods, gelatinous metazoa, and other abundant metazoan invertebrates. Consequently, some of the less well recognized but also abundant microzooplankton have been given less attention. The radio laria, although widely studied as fossils by micropaleontologists, have in modem times. This is la been relatively neglected by biologists mentable given their widespread distribution in the oceans, remarkably complex form, and not infrequently localized abundance. Their diver sity of form, encompassing solitary species of microscopic dimensions and colonial species as large as several centimeters or more, challenges us to explain their evolutionary origins, explore their structural-func tional correlates, and comprehend the ecological basis for their wide spread occurrence in all oceans of the world fromihe greatest depth to the surface of the sea. Their intricate and aesthetically pleasing skeletons of enormous variety and fine-detailed design formed from amorphous silica (opaline glass) offer a unique biomineralized product that defies immediate biological explanation. |
| economic importance of radiolaria: Economic Mineralogy Thomas Crook, 1921 |
| economic importance of radiolaria: Marine Protists Susumu Ohtsuka, Toshinobu Suzaki, Takeo Horiguchi, Noritoshi Suzuki, Fabrice Not, 2015-09-28 This comprehensive book provides a unique overview of advances in the biology and ecology of marine protists. Nowadays marine protistology is a hot spot in science to disclose life phenomena using the latest techniques. Although many protistological textbooks deal with the cytology, genetics, ecology, and pathology of specific organisms, none keeps up with the quick pace of new discoveries on the diversity and dynamics of marine protists in general. The bookMarine Protists: Diversity and Dynamics gives an overview of current research on the phylogeny, cytology, genomics, biology, ecology, fisheries, applied sciences, geology and pathology of marine free-living and symbiotic protists. Poorly known but ecologically important protists such as labyrinthulids and apostome ciliates are also presented in detail. Special attention is paid to complex interactions between marine protists and other organisms including human beings. An understanding of the ecological roles of marine protists is essential for conservation of nature and human welfare. This book will be of great interest not only to scientists and students but also to a larger audience, to give a better understanding of protists’ diverse roles in marine ecosystems. |
| economic importance of radiolaria: Paleobiology of the Polycystine Radiolaria David Lazarus, Noritoshi Suzuki, Yoshiyuki Ishitani, Kozo Takahashi, 2020-12-29 Polycystine radiolaria are exclusively marine protists and are found in all ocean waters, from polar regions to the tropics, and at all water depths. There are approximately 600 distinct described living species and several thousand fossil species of polycystines. Radiolarians in general, and polycystines in particular, have recently been shown to be a major component of the living plankton and important to the oceanic carbon cycle. As fossils radiolarians are also fairly common, and often occur in sediments where other types of fossils are absent. This has made them very valuable for certain types of geologic research, particularly estimating the geologic age of the sediments containing them, and as guides to past oceanic water conditions. As our current understanding of the biology, and even taxonomy of the living fauna is still very incomplete, evolutionary studies based on living polycystines are still rare. However, the common occurrence of numerous specimens for many species, and in a wide variety of oceanic environments, provides an excellent opportunity to study the processes of biologic evolution in the fossil record. Paleobiology of the Polycystine Radiolaria is the first major book on radiolarians to appear in the western literature since 2001. Focusing on living and fossil siliceous shelled radiolarians, it is notable for its emphasis not upon morphologic or taxonomic detail but on concepts and applications. The book attempts to provide a balanced, critical review of what is known of the biology, ecology, and fossil record of the group, as well as their use in evolutionary, biostratigraphic and paleoceanographic research. Full chapters on the history of study, and molecular biology, are the first ever in book form. Written for an audience of advanced undergraduate to doctoral students, as well as for a broad range of professionals in the biological and Earth sciences, Paleobiology of the Polycystine Radiolaria summarizes current understanding of the marine planktonic protist group polycystine radiolaria, both in living and fossil form. |
| economic importance of radiolaria: Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876: Porulosa (Spumellaria and Acantharia) and Subclass Osculosa Ernst Heinrich Philipp August Haeckel, 2020-09-28 ÊThe significance of the Radiolaria in regard to the relations of life in the ocean has been increased in a most unexpected manner by the discoveries of the Challenger. Large swarms of these delicate Rhizopoda were found not only at the surface of the open ocean but also in its different bathymetrical zones. Thousands of new species make up the wonderful Radiolarian ooze, which covers large areas of the deep-sea bed, and was brought up from abysses of from 2000 to 4000 fathoms by the sounding machine of the Challenger. They open a new world to morphological investigation. When ten years ago (in the autumn of 1876) I accepted the enticing invitation of Sir Wyville Thomson to undertake the investigation of these microscopic creatures, I hoped to be able to accomplish the task with some degree of completeness within a period of from three to five years, but the further my investigations proceeded the more immeasurable seemed the range of forms, like the boundless firmament of stars. I soon found myself compelled to decide between making a detailed study of a selection of special forms or giving as complete a survey as possible of the varied forms of the whole class; and I decided upon the latter course, having regard both to the general plan of the Challenger Reports, and to the interests of our acquaintance with the class as a whole. I must, however, confess at the close of my work that my original intention is far from having been fulfilled. The extraordinary extent and varied difficulties of the undertaking must excuse the many deficiencies. The special examination of the Challenger collection was for the most part completed in the summer of 1881; I collected its results in my Entwurf eines Radiolarien-Systems auf Grund von Studien der Challenger-Radiolarien (Jenaische Zeitschr. f. Naturw., Bd. xv., 1881). Since the manuscript of this preliminary communication was completed only a few days before my departure for Ceylon, and since I was unable to correct the proofs myself, several errors have crept into the Prodromus Systematis Radiolarium included in it. These have been corrected in the following more extensive working out of it. Even at that time I had distinguished 630 genera and more than 2000 species; but on the revision of these, which I undertook immediately on my return from India, this number was considerably increased. The total number of forms here described amounts to 739 genera and 4318 species; of these 3508 are new, as against 810 previously described. In spite of this large number, however, and in spite of the astonishing variety of the new and marvellous forms, the riches of the Challenger collection are by no means exhausted. A careful and patient worker who would devote a second decade to the work, would probably increase the number of new forms (especially of the smaller ones) by more than a thousand; but for a really complete examination, the lifetime of one man would not suffice. |
| economic importance of radiolaria: ECONOMIC IMPORTANCE OF MICROBES Dr. Kavita Chahal, 2020-12-15 |
| economic importance of radiolaria: Encyclopedia of Paleoclimatology and Ancient Environments Vivien Gornitz, 2008-10-31 One of Springer’s Major Reference Works, this book gives the reader a truly global perspective. It is the first major reference work in its field. Paleoclimate topics covered in the encyclopedia give the reader the capability to place the observations of recent global warming in the context of longer-term natural climate fluctuations. Significant elements of the encyclopedia include recent developments in paleoclimate modeling, paleo-ocean circulation, as well as the influence of geological processes and biological feedbacks on global climate change. The encyclopedia gives the reader an entry point into the literature on these and many other groundbreaking topics. |
| economic importance of radiolaria: The Geological Magazine Or Monthly Journal of Geology , 1892 |
| economic importance of radiolaria: Geological Magazine Henry Woodward, 1892 |
| economic importance of radiolaria: Radiolarians in the Sedimentary Record P. De Wever, P. Dumitrica, J.P. Caulet, C. Nigrini, M. Caridroit, 2002-02-28 Radiolarians in the Sedimentary Record presents the current state of knowledge on fossil radiolarians. The author discusses the record, as well as new integrated taxonomic systems at the family level. The book provides comprehensive coverage of the fossil record of these unicellular organisms. It also discusses their important role in the history of the Earth and their development of the biosphere. This text will prove indispensable for graduate students and researchers in geology, oceanography and earth sciences. |
| economic importance of radiolaria: Handbook of the Protists John M. Archibald, Alastair G.B. Simpson, Claudio H. Slamovits, 2017-08-16 Published in a modern, user-friendly format this fully revised and updated edition of The Handbook of Protoctista (1990) is the resource for those interested in the biology, diversity and evolution of eukaryotic microorganisms and their descendants, exclusive of animals, plants and fungi. With chapters written by leading researchers in the field, the content reflects the present state of knowledge of the cell and genome biology, evolutionary relationships and ecological/medical/economic importance each major group of protists, organized according to current protist systematics as informed by molecular phylogenetics and genomics. |
| economic importance of radiolaria: Annual Report of the Board of Regents of the Smithsonian Institution Smithsonian Institution. Board of Regents, 1917 Reports for 1884-1886/87 issued in 2 pts., pt. 2 being the Report of the National Museum. |
| economic importance of radiolaria: (Zoology) Animal Diversity of Non-Chordates (Major/Minor) Book Dr. Manjeet Kaur , Dr. Anil Sharma , 2023-10-01 Revised Curriculum and Credit Framework of Under Graduate Programme, Haryana According to KUK/CRS University Syllabus as Per NEP-2020. |
| economic importance of radiolaria: Silicon and Siliceous Structures in Biological Systems T.L. Simpson, B.E. Volcani, 2012-12-06 The publication of this book was undertaken with two purposes in view: to bring together informatian on the deposition by living organ isms of unique skeletal structures composed of amorphous silica, and to review recent data on the involvement of silicon in physiological and biochemical processes. Although widely varying viewpoints are represented, all the contributors are very interested in the events in volved in the formatian of siliceaus structures and their function. Data presented deal with these questions in a variety of plant and animal systems, and at levels ranging from the evolutionary to the biochemical and ultrastructural. Innovations in electron microscopy and, indeed, the advent of electron microscopy itself, have stimulated many ultra structural studies of silica deposition, work which has deepened and widened the interest in those organisms which routinely produce glassy skeletons. The question of how silicon participates in biological systems in volves a spectrum of fields that indudes the chemistry of silicon per se, its biogeochemistry, biochemistry, ecology, and so forth. In this book, however, attention is focused up on the biological aspects of silicon and siliceous structures, with emphasis on the evolutian, phylogeny, morphology, and distribution of siliceaus structures, on the cellular as peets of silica deposition, and on the physiological and biochemical roles of silicon. This volume represents the first compilatian of such data. Because such a variety of subjects and fields are covered, the reader will have to glean for himself some of the comparative aspects of the data. |
| economic importance of radiolaria: Marine Planktology Zhong Zheng, 1989 |
| economic importance of radiolaria: Marine Plankton Claudia Castellani, Martin Edwards, 2017 A thorough understanding of planktonic organisms is the first step towards a real appreciation of the diversity, biology, and ecological importance of marine life. A detailed knowledge of their distribution and community composition is particularly important since these organisms are often very delicate and sensitive to change, and can be used as early indicators of environmental change. Natural and man-induced modification of the environment can affect both the distribution and composition of plankton, with important ecological and economic impacts. Marine Plankton provides a practical guide to plankton biology with a large geographic coverage spanning the North Sea to the north-eastern Atlantic coast of the USA and Canada. The book is divided into three sections: an overview of plankton ecology, an assessment of methodology in plankton research covering sampling, preservation, and counting of samples, and a taxonomic guide richly illustrated with detailed line drawings to aid identification. This is an essential reference text suitable for senior undergraduate and graduate students taking courses in marine ecology (particularly useful for fieldwork) as well as for professional marine biologists. It will also be of relevance and use to environmental scientists, conservation biologists, marine resource managers, environmental consultants, and other specialised practitioners. |
| economic importance of radiolaria: Discovery , 1921 |
| economic importance of radiolaria: Summary of Progress of the Geological Survey of Great Britain and the Museum of Practical Geology Geological Survey of Great Britain, 1910 |
| economic importance of radiolaria: Summary of Progress of the Geological Survey ... and Museum of Practical Geology Geological Survey of Great Britain, 1907 A new series, embracing annual scientific results and certain administrative statistics. |
| economic importance of radiolaria: Summary of Progress of the Geological Survey of the United Kingdom and Museum of Practical Geology for ... Geological Survey of the United Kingdom, 1906 |
| economic importance of radiolaria: Materials and Methods in the Study of Protozoa Harold Kirby, 2023-11-10 |
| economic importance of radiolaria: Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-76 Ernst Haeckel, 1965 |
| economic importance of radiolaria: Modern Text Book of Zoology: Invertebrates Prof. R.L.Kotpal, 2012 |
| economic importance of radiolaria: Collected paper James Perrin Smith, 1895 |
| economic importance of radiolaria: The Journal of Geology Thomas Chrowder Chamberlin, 1910 Vols. for 1893-1923 includes section: Reviews. |
| economic importance of radiolaria: The Cambridge Natural History: Protozoa Sidney Frederick Harmer, Sir Arthur Everett Shipley, 1906 |
| economic importance of radiolaria: The Cambridge Natural History Sidney Frederic Harmer, Sir Arthur Everett Shipley, 1922 |
| economic importance of radiolaria: The Cambridge Natural History Sir Sidney Frederic Harmer, Sir Arthur Everett Shipley, 1906 |
| economic importance of radiolaria: Thorp and Covich's Freshwater Invertebrates James H. Thorp, D. Christopher Rogers, 2014-09-06 Readers familiar with the first three editions of Ecology and Classification of North American Freshwater Invertebrates (edited by J.H. Thorp and A.P. Covich) will welcome the comprehensive revision and expansion of that trusted professional reference manual and educational textbook from a single North American tome into a developing multi-volume series covering inland water invertebrates of the world. The series entitled Thorp and Covich's Freshwater Invertebrates (edited by J.H. Thorp) begins with the current Volume I: Ecology and General Biology (edited by J.H. Thorp and D.C. Rogers), which is designed as a companion volume for the remaining books in the series. Those following volumes provide taxonomic coverage for specific zoogeographic regions of the world, starting with Keys to Nearctic Fauna (Vol. II) and Keys to Palaearctic Fauna (Vol. III). Volume I maintains the ecological and general biological focus of the previous editions but now expands coverage globally in all chapters, includes more taxonomic groups (e.g., chapters on individual insect orders), and covers additional functional topics such as invasive species, economic impacts, and functional ecology. As in previous editions, the 4th edition of Ecology and Classification of North American Freshwater Invertebrates is designed for use by professionals in universities, government agencies, and private companies as well as by undergraduate and graduate students. - Global coverage of aquatic invertebrate ecology - Discussions on invertebrate ecology, phylogeny, and general biology written by international experts for each group - Separate chapters on invasive species and economic impacts and uses of invertebrates - Eight additional chapters on insect orders and a chapter on freshwater millipedes - Four new chapters on collecting and culturing techniques, ecology of invasive species, economic impacts, and ecological function of invertebrates - Overall expansion of ecology and general biology and a shift of the even more detailed taxonomic keys to other volumes in the projected 9-volume series - Identification keys to lower taxonomic levels |
| economic importance of radiolaria: Annual Report of the Board of Regents of the Smithsonian Institution Smithsonian Institution, Smithsonian Institution. Board of Regents, 1917 |
| economic importance of radiolaria: The Ore Minerals and Their Intergrowths Paul Ramdohr, 2013-09-24 The Ore Minerals and Their Intergrowths focuses on the properties, characteristics, and reactions of ore minerals. The book first offers information on genetic systematics of ore deposits and ore textures. Discussions focus on meteorites, magmatic, sedimentary, and metamorphic sequences, fabric properties considered from a purely geometric point of view, genetic fabric types, and the relationship of ore textures with industrial minerals. The text then elaborates on annotation concerning the arrangement of materials and elements and intermetallic compounds. The publication takes a look at alloy-like compounds and tellurides and common sulfides and sulfosalts. Topics include umangite, bornite, jalpaite, argentite, naumannite, crookesite, coloradoite, novakite, orcelite, maucherite, parkerite, and horsfordite. The manuscript further touches on oxide ore minerals and gangue minerals and non-opaque oxide ore minerals, including quartz, calcite, dolomite, siderite, cerussite, smithsonite, jarosite, tenorite, zincite, and cuprite. The text is a dependable reference for readers interested in ore minerals and their intergrowths. |
| economic importance of radiolaria: Earthscope Chris Pellant, 1989 |
| economic importance of radiolaria: Comparative Protozoology Orvil Roger Anderson, 2013-03-09 The protozoa are an eclectic assemblage of organisms encompassing a wide range of single-celled and multiple-celled colonial organisms lacking tissue organiza tion, but exhibiting remarkably refined biological behavior. In some modern classifications, they are classified as a subkingdom among the Protista (eukary otic single-celled organisms). Although they are not considered a formal cate gory by some taxonomists and some biologists consider the name inappropriate (inferring that they are the first unicellular animals, although some photosynthe size), it is still convenient to consider this group of organisms as an informal collection under the heading of protozoa. Their cosmopolitan distribution, sig nificant ecological role in mineral recycling and enhancement of carbon flow through lower trophic levels of food webs, and remarkable cellular adaptations to enhance survival in diverse environments make them significant organisms for biological investigation. In some cases, biologists are introduced to this group in first level courses or in invertebrate zoology, but never develop a full appreciation for the diverse and biologically sophisticated characteristics of these organisms. This book is intended as a survey of broad concepts in protozoan biology with an emphasis on comparative data. The focus is on the zoological aspects of the group. Topics more closely related to plantlike characteristics, as presented in books on phycol ogy, are not considered in detail here. A sound background in modern biology and an introduction to cellular biology will be helpful in understanding Chapters 15 and 16, which include a substantial amount of information on biochemistry. |
| economic importance of radiolaria: The Great Ordovician Biodiversification Event Barry D. Webby, Florentin Paris, Mary L. Droser, Ian G. Percival, 2004-04-14 Two of the greatest evolutionary events in the history of life on Earth occurred during Early Paleozoic time. The first was the Cambrian explosion of skeletonized marine animals about 540 million years ago. The second was the Great Ordovician Biodiversification Event, which is the focus of this book. During the 46-million-year Ordovician Period (489–443 m.y.), a bewildering array of adaptive radiations of Paleozoic- and Modern-type biotas appeared in marine habitats, the first animals (arthropods) walked on land, and the first non-vascular bryophyte-like plants (based on their cryptospore record) colonized terrestrial areas with damp environments. This book represents a compilation by a large team of Ordovician specialists from around the world, who have enthusiastically cooperated to produce this first globally orientated, internationally sponsored IGCP (International Geological Correlation Program) project on Ordovician biotas. The major part is an assembly of genus- and species-level diversity data for the many Ordovician fossil groups. The book also presents an evaluation of how each group diversified through Ordovician time, with assessments of patterns of change and rates of origination and extinction. As such, it will become the standard work and data source for biotic studies on the Ordovician Period. |
| economic importance of radiolaria: Papers on Foraminifera: Flint, et al , 1899 Collection of articles on foraminifera extracted from various publications originally published between 1847 and 1910 |
| economic importance of radiolaria: The New International Encyclopaedia , 1905 |
| economic importance of radiolaria: Oswaal ISC 10 Sample Question Papers Class 11 Biology For 2024 Exams (Based On The Latest CISCE/ ISC Specimen Paper) Oswaal Editorial Board, 2023-12-20 Description of the product: •Fresh & Relevant with Latest Typologies of the Questions •Score Boosting Insights with 500+ Questions & 1000 Concepts •Insider Tips & Techniques with On-Tips Notes, Mind Maps & Mnemonics •Exam Ready Practice with 10 Highly Probable SQPs |
| economic importance of radiolaria: The Micrologist , 1910 |
| economic importance of radiolaria: Fundamentals of Invertebrate Palaeontology Sreepat Jain, 2019-12-12 This book provides practical morphological information, together with detailed illustrations and brief explanatory texts. Each chapter starts with a brief introduction, and goes on to describe the respective organism’s morphology in detail through numerous illustrations. This is followed by a brief note on its classification, and concludes with illustrated examples of stratigraphically important organisms through time with their major distinguishing characteristics. Featuring over 2500 clearly labelled, hand-drawn and classroom-friendly illustrations, the book offers a fundamental resource for budding palaeontologists, petroleum geologists and palaeobiologists. |
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