The Biogeochemistry Of Cobalt In The Sargasso Sea

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The Biogeochemistry of Cobalt in the Sargasso Sea

Author : Mak A. Saito
Publisher :
ISBN 13 :
Total Pages : 832 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis The Biogeochemistry of Cobalt in the Sargasso Sea by : Mak A. Saito

Download or read book The Biogeochemistry of Cobalt in the Sargasso Sea written by Mak A. Saito and published by . This book was released on 2001 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt: Processes that enable marine phytoplankton to acquire trace metals are fundamental to our understanding of primary productivity and global carbon cycling. This thesis explored the biogeochemistry of cobalt using analytical chemistry and physiological experiments with the dominant phytoplankton species, Prochlorococcus. A high sensitivity method for Co speciation was developed using hanging mercury drop cathodic stripping voltammetry. Dissolved Co at the Bermuda Atlantic Time Series station (BATS) in the Sargasso Sea was bound by strong organic complexes with a conditional stability constant of logK=16.3 +/- 0.9. Biweekly time series measurements of total cobalt near Bermuda from the MITESS sampler were 0-47pM throughout 1999, and averaged 20 +/- 10pM in 1999. A transect of total cobalt from BATS to American coastal waters ranged from 19-133pM and correlated negatively with salinity (r(sup 2)=0.93). Prochlorococcus strains MED4-Ax and SS120 showed an absolute requirement for Co, despite replete Zn. Co-57 uptake rates and growth rates were enhanced by additions of filtered low Co cultures, suggesting that a ligand is present that facilitates Co uptake. Co-limited Prochlorococcus cultures exhibited an increase in the fraction of cells in G2 relative to other cell cycle stages during exponential growth, and the durations of this stage increased with decreasing cobalt concentrations.

The Biogeochemistry of Cobalt in the Sargasso Sea

Author :
Publisher :
ISBN 13 :
Total Pages : 301 pages
Book Rating : 4.:/5 (853 download)

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Download or read book The Biogeochemistry of Cobalt in the Sargasso Sea written by and published by . This book was released on 2001 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Oceans and Marine Geochemistry

Author : H. Elderfield
Publisher : Elsevier
ISBN 13 : 9780080451015
Total Pages : 668 pages
Book Rating : 4.4/5 (51 download)

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Book Synopsis The Oceans and Marine Geochemistry by : H. Elderfield

Download or read book The Oceans and Marine Geochemistry written by H. Elderfield and published by Elsevier. This book was released on 2006-06-20 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Treatise on Geochemistry is the first work providing a comprehensive, integrated summary of the present state of geochemistry. It deals with all the major subjects in the field, ranging from the chemistry of the solar system to environmental geochemistry. The Treatise on Geochemistry has drawn on the expertise of outstanding scientists throughout the world, creating the reference work in geochemistry for the next decade. Each volume consists of fifteen to twenty-five chapters written by recognized authorities in their fields, and chosen by the Volume Editors in consultation with the Executive Editors. Particular emphasis has been placed on integrating the subject matter of the individual chapters and volumes. Elsevier also offers the Treatise on Geochemistry in electronic format via the online platform ScienceDirect, the most comprehensive database of academic research on the Internet today, enhanced by a suite of sophisticated linking, searching and retrieval tools.

Cobalt Biogeochemistry in the Atlantic Ocean Using Flow Injection-chemiluminescence

Author : Rachel Ursula Shelley
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (879 download)

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Book Synopsis Cobalt Biogeochemistry in the Atlantic Ocean Using Flow Injection-chemiluminescence by : Rachel Ursula Shelley

Download or read book Cobalt Biogeochemistry in the Atlantic Ocean Using Flow Injection-chemiluminescence written by Rachel Ursula Shelley and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Biogeochemistry of Marine Dissolved Organic Matter

Author : Dennis A. Hansell
Publisher : Elsevier
ISBN 13 : 0443138591
Total Pages : 870 pages
Book Rating : 4.4/5 (431 download)

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Book Synopsis Biogeochemistry of Marine Dissolved Organic Matter by : Dennis A. Hansell

Download or read book Biogeochemistry of Marine Dissolved Organic Matter written by Dennis A. Hansell and published by Elsevier. This book was released on 2024-07-04 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biogeochemistry of Marine Dissolved Organic Matter, 3rd edition is the most up-to-date revision of the fundamental reference for the biogeochemistry of marine dissolved organic matter. Since its original publication in June 2002, the science, questions, and priorities have advanced, and the editors of this essential guide, have added nine new chapters, including one on the South China Sea. An indispensable manual edited by the most distinguished experts in the field, this book is addressed to graduate students, marine scientists, and all professionals interested in advancing their knowledge of the field. Features up-to-date knowledge on DOM, including 9 new chapters Presents the only published work to synthesize recent research on dissolved organic carbon in the South China, a region receiving a great deal of attention in recent decades Offers contributions by world-class research leaders

The Marine Biogeochemistry of Molybdenum

Author : Caroline Beth Tuit
Publisher :
ISBN 13 :
Total Pages : 278 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis The Marine Biogeochemistry of Molybdenum by : Caroline Beth Tuit

Download or read book The Marine Biogeochemistry of Molybdenum written by Caroline Beth Tuit and published by . This book was released on 2003 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Cont.) Mn oxides were not found to significantly influence either the dissolved or SPM Mo distribution. Dissolved Mo profiles from the Sargasso and Arabian Sea were conservative. However, dissolved Mo profiles from the Eastern Tropical Pacific showed both depletion and enrichment of dissolved Mo possibly associated with interaction of Mo with coastal sediments. Dissolved Mo profiles in several California Borderland Basins showed 1-2 nM Mo depletions below sill depth. A more focused study of water column response to sediment fluxes using the high precision Mo analyses is necessary to determine whether these phenomena are related.

Trace Metal Biogeochemistry and Ecology of Deep-Sea Hydrothermal Vent Systems

Author : Liudmila L. Demina
Publisher : Springer
ISBN 13 : 3319413406
Total Pages : 219 pages
Book Rating : 4.3/5 (194 download)

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Book Synopsis Trace Metal Biogeochemistry and Ecology of Deep-Sea Hydrothermal Vent Systems by : Liudmila L. Demina

Download or read book Trace Metal Biogeochemistry and Ecology of Deep-Sea Hydrothermal Vent Systems written by Liudmila L. Demina and published by Springer. This book was released on 2016-07-26 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume synthesizes the relevant data that is fundamental to our understanding of trace metal biogeochemistry and the ecology of biological communities of deep-sea vent systems. It presents the combined results of biological and geochemical research and analyzes the microdistribution of animals and the spatial structure of vent communities. Careful consideration is given to the export of iron and other trace metals from hydrothermal vents. The environmental conditions to be found in deep-sea hydrothermal community habitats, along with the trace metal behavior in biotope water are characterized and the sources and forms of trace metals taken up by dominant hydrothermal vent animals are discussed. Special attention is paid to the poorly investigated deep biosphere of the sub-seafloor igneous crust. The book is illustrated with a wealth of exceptional deep-sea photos taken by the manned submersible “Mir”, and a dedicated chapter focuses on the role of deep manned submersibles in ocean research. The book will be of interest to researchers and students in the fields of oceanography, geochemistry, biology, the environmental sciences and marine ecology.

Modeling Biogeochemical-physical Interactions and Carbon Flux in the Sargasso Sea (bermuda Atlantic ... Nasa

Author : United States. National Aeronautics and Space Administration
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (639 download)

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Book Synopsis Modeling Biogeochemical-physical Interactions and Carbon Flux in the Sargasso Sea (bermuda Atlantic ... Nasa by : United States. National Aeronautics and Space Administration

Download or read book Modeling Biogeochemical-physical Interactions and Carbon Flux in the Sargasso Sea (bermuda Atlantic ... Nasa written by United States. National Aeronautics and Space Administration and published by . This book was released on 2003* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Organic Ligands in Marine Trace Metal Biogeochemistry

Author : Kristen N. Buck
Publisher : Frontiers Media SA
ISBN 13 : 2889453766
Total Pages : 305 pages
Book Rating : 4.8/5 (894 download)

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Book Synopsis Organic Ligands in Marine Trace Metal Biogeochemistry by : Kristen N. Buck

Download or read book Organic Ligands in Marine Trace Metal Biogeochemistry written by Kristen N. Buck and published by Frontiers Media SA. This book was released on 2018-01-11 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research topic highlights the most recent accomplishments of a Scientific Committee on Oceanic Research (SCOR) Working Group, SCOR WG 139: Organic Ligands - A Key Control on Trace Metal Biogeochemistry in the Ocean.

Novel Insights into the Circulation, Biogeochemistry, and Ecosystem Function of the Gulf of Mexico: A Perspective from Mexican Waters in Support of Oil Spill Preparedness

Download Novel Insights into the Circulation, Biogeochemistry, and Ecosystem Function of the Gulf of Mexico: A Perspective from Mexican Waters in Support of Oil Spill Preparedness PDF Online Free

Author : Maria Josefina Olascoaga
Publisher : Frontiers Media SA
ISBN 13 : 2832540287
Total Pages : 259 pages
Book Rating : 4.8/5 (325 download)

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Book Synopsis Novel Insights into the Circulation, Biogeochemistry, and Ecosystem Function of the Gulf of Mexico: A Perspective from Mexican Waters in Support of Oil Spill Preparedness by : Maria Josefina Olascoaga

Download or read book Novel Insights into the Circulation, Biogeochemistry, and Ecosystem Function of the Gulf of Mexico: A Perspective from Mexican Waters in Support of Oil Spill Preparedness written by Maria Josefina Olascoaga and published by Frontiers Media SA. This book was released on 2023-12-11 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: In response to the Deepwater Horizon oil spill in the Gulf of Mexico (GoM), and given the increased activities of the offshore oil industry, an international multidisciplinary consortium - the CIGOM Consortium - was funded by Mexico's Energy Secretariat (SENER) and its National Council for Science and Technology (CONACyT). Spanning 2015-2022, CIGOM's goals were to establish an environmental baseline to characterize the southern GOM’s natural variability and contribute to the understanding of ecosystem function, use cutting-edge technologies to observe the ocean, couple physical circulation and biogeochemical models to gain understating of oceanographic processes, generate oil spill scenarios using model ensembles and statistical techniques and conducting vulnerability assessments. Over 300 researchers participated in the CIGOM consortium's efforts.

Biogeochemistry

Author : W.H. Schlesinger
Publisher : Academic Press
ISBN 13 : 0128146095
Total Pages : 765 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Biogeochemistry by : W.H. Schlesinger

Download or read book Biogeochemistry written by W.H. Schlesinger and published by Academic Press. This book was released on 2020-08-07 with total page 765 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biogeochemistry: An Analysis of Global Change, Fourth Edition, considers how the basic chemical conditions of the Earth, from atmosphere to soil to seawater, have been, and are being, affected by the existence of life. Human activities in particular, from the rapid consumption of resources to the destruction of the rainforests and the expansion of smog-covered cities, are leading to rapid changes in the basic chemistry of the Earth. The new edition features expanded coverage of topics, including the cryosphere, the global hydrogen cycle, biomineralization and the movement of elements across landscapes and continents by organisms and through global trade. The book will help students and researchers extrapolate small-scale examples to a global level. With cross-referencing of chapters, figures and tables, and an interdisciplinary coverage of the topic, this updated edition provides an excellent framework for examining global change and environmental chemistry. Includes an extensive review and up-to-date synthesis of the current literature on the Earth's biogeochemistry Synthesizes the global cycles of carbon, nitrogen, phosphorous and sulfur, and suggests the best current budgets for atmospheric gases such as ammonia, nitrous oxide, dimethyl sulfide, and carbonyl sulfide Features updated literature references and expanded coverage of topics, including the cryosphere, the global hydrogen cycle, biomineralization and the movement of elements across landscapes and continents by organisms and through global trade

Treatise on Geochemistry

Author :
Publisher : Newnes
ISBN 13 : 0080983006
Total Pages : 14787 pages
Book Rating : 4.0/5 (89 download)

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Book Synopsis Treatise on Geochemistry by :

Download or read book Treatise on Geochemistry written by and published by Newnes. This book was released on 2013-10-19 with total page 14787 pages. Available in PDF, EPUB and Kindle. Book excerpt: This extensively updated new edition of the widely acclaimed Treatise on Geochemistry has increased its coverage beyond the wide range of geochemical subject areas in the first edition, with five new volumes which include: the history of the atmosphere, geochemistry of mineral deposits, archaeology and anthropology, organic geochemistry and analytical geochemistry. In addition, the original Volume 1 on "Meteorites, Comets, and Planets" was expanded into two separate volumes dealing with meteorites and planets, respectively. These additions increased the number of volumes in the Treatise from 9 to 15 with the index/appendices volume remaining as the last volume (Volume 16). Each of the original volumes was scrutinized by the appropriate volume editors, with respect to necessary revisions as well as additions and deletions. As a result, 27% were republished without major changes, 66% were revised and 126 new chapters were added. In a many-faceted field such as Geochemistry, explaining and understanding how one sub-field relates to another is key. Instructors will find the complete overviews with extensive cross-referencing useful additions to their course packs and students will benefit from the contextual organization of the subject matter Six new volumes added and 66% updated from 1st edition. The Editors of this work have taken every measure to include the many suggestions received from readers and ensure comprehensiveness of coverage and added value in this 2nd edition The esteemed Board of Volume Editors and Editors-in-Chief worked cohesively to ensure a uniform and consistent approach to the content, which is an amazing accomplishment for a 15-volume work (16 volumes including index volume)!

Environmental Bioinorganic Chemistry of Aquatic Microbial Organisms

Author : Christel Hassler
Publisher : Frontiers E-books
ISBN 13 : 2889191303
Total Pages : 207 pages
Book Rating : 4.8/5 (891 download)

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Book Synopsis Environmental Bioinorganic Chemistry of Aquatic Microbial Organisms by : Christel Hassler

Download or read book Environmental Bioinorganic Chemistry of Aquatic Microbial Organisms written by Christel Hassler and published by Frontiers E-books. This book was released on 2013-07-05 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Environmental Bioinorganic Chemistry of Aquatic Microbial Organisms describes the interactions between metals and aquatic prokaryotic and eukaryotic microorganisms in their environment. Metals influence microbial growth in the aquatic environment as they can be either toxic to aquatic microbes, if present at too high concentrations in the environment, or limiting, if bio-essential and present at very low concentrations. In turn, microorganisms influence the biogeochemical cycling of metals as they affect trace metal concentrations, distributions between particulate and dissolved phase, and chemical speciation. At the sub cellular level, metalloproteins are the catalysts driving many steps in the biogeochemical cycles of major elements such as carbon, nitrogen and sulfur. Metals thus provide a link between the abundance and activity of enzymes, the growth of microorganisms, and the biogeochemical cycles of major climate influencing elements. Furthermore, the evolution of the chemistry of aquatic environments and atmosphere has left its mark on the microbial proteome as a direct result of changes in the solubility of metals. The aquatic microbial metallome thus has the potential to reveal information about key biogeochemical processes, their spatial and seasonal occurrence, and also to reveal how the geochemical environment is shaping the microbial population itself. The aim of this Research Topic is to highlight recent advances in our understanding of how metals influence the activity of aquatic microbes, and how microbes influence the biogeochemical cycling of metals. Applications of techniques in proteomics, spectroscopy, mass spectrometry and genomics are all leading to a greater understanding of the interactions between the microbial metallome and the “aquatic metallome” and thus the influence of metals on the biogeochemical cycles of climatically important elements such as carbon, nitrogen and sulfur. Both reviews and original research on the occurrence and abundance of microbial metal proteins and peptides, the utilisation of metals by aquatic microbes, the influence of microbially produced exudates on metal speciation and the biogeochemical cycling, and the toxicity of metals to microbial organisms are welcome.

REE Marine Geochemistry in the 21st Century: A Tribute to the Pioneering Research of Henry Elderfield (1943–2016)

Author : Johan Schijf
Publisher : Frontiers Media SA
ISBN 13 : 2889636550
Total Pages : 197 pages
Book Rating : 4.8/5 (896 download)

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Book Synopsis REE Marine Geochemistry in the 21st Century: A Tribute to the Pioneering Research of Henry Elderfield (1943–2016) by : Johan Schijf

Download or read book REE Marine Geochemistry in the 21st Century: A Tribute to the Pioneering Research of Henry Elderfield (1943–2016) written by Johan Schijf and published by Frontiers Media SA. This book was released on 2020-05-05 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Modeling Biogeochemical-Physical Interactions and Carbon Flux in the Sargasso Sea

Author : Sergio R. Signorini
Publisher : BiblioGov
ISBN 13 : 9781289275976
Total Pages : 46 pages
Book Rating : 4.2/5 (759 download)

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Book Synopsis Modeling Biogeochemical-Physical Interactions and Carbon Flux in the Sargasso Sea by : Sergio R. Signorini

Download or read book Modeling Biogeochemical-Physical Interactions and Carbon Flux in the Sargasso Sea written by Sergio R. Signorini and published by BiblioGov. This book was released on 2013-08 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ecosystem-carbon cycle model is used to analyze the biogeochemical-physical interactions and carbon fluxes in the Bermuda Atlantic Time-series Study (BATS) site for the period of 1992-1998. The model results compare well with observations (most variables are within 8% of observed values). The sea-air flux ranges from -0.32 to -0.50 mol C/sq m/yr, depending upon the gas transfer algorithm used. This estimate is within the range (-0.22 to -0.83 mol C/sq m/yr) of previously reported values which indicates that the BATS region is a weak sink of atmospheric CO2. The overall carbon balance consists of atmospheric CO2 uptake of 0.3 Mol C/sq m/yr, upward dissolved inorganic carbon (DIC) bottom flux of 1.1 Mol C/sq m/yr, and carbon export of 1.4 mol C/sq m/yr via sedimentation. Upper ocean DIC levels increased between 1992 and 1996 at a rate of approximately 1.2 (micro)mol/kg/yr, consistent with observations. However, this trend was reversed during 1997-1998 to -2.7 (micro)mol/kg/yr in response to hydrographic changes imposed by the El Nino-La Nina transition, which were manifested in the Sargasso Sea by the warmest SST and lowest surface salinity of the period (1992-1998).

Perspectives on Biogeochemistry

Author : Egon T. Degens
Publisher : Springer Science & Business Media
ISBN 13 : 364248879X
Total Pages : 432 pages
Book Rating : 4.6/5 (424 download)

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Book Synopsis Perspectives on Biogeochemistry by : Egon T. Degens

Download or read book Perspectives on Biogeochemistry written by Egon T. Degens and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Perspectives on Biogeochemistry is an account of the origin of forces and matter at the dawn of time, and the way they evolved to planet Earth of today. Several fields of natural sciences are consulted to present a coherent view on the cycling of terrestrial elements and molecules, both organic and inorganic, in the course of time. Critical data are drawn together from astronomy, physics, chemistry, biology, and geology in order to provide some understanding of the complexity of the system Earth. In this book, E.T. Degens abstracts his knowledge of biogeochemical interactions acquired in more than thirty years of research and teaching. Students and anyone in the natural sciences wanting to familiarize themselves with phenomena prevailing at the periphery of their disciplines will profit by the very thorough and personal view of this pressing topic.

Seasonal Carbon Cycling in the Sargasso Sea Near Bermuda

Author : Nicolas Gruber
Publisher : Univ of California Press
ISBN 13 : 0520915968
Total Pages : 106 pages
Book Rating : 4.5/5 (29 download)

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Book Synopsis Seasonal Carbon Cycling in the Sargasso Sea Near Bermuda by : Nicolas Gruber

Download or read book Seasonal Carbon Cycling in the Sargasso Sea Near Bermuda written by Nicolas Gruber and published by Univ of California Press. This book was released on 1999-10-04 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each year, the concentration of dissolved inorganic carbon (DIC) in the mixed layer at Station S in the Sargasso Sea decreases from winter to summer by about 30 umol/kg. The authors of this study demonstrate that by simultaneously observing changes in the stable isotopic ration of DIC, it is possible to quantify the contribution of physical and biological processes to this summer-fall drawdown. They find that biology is the dominant contrbutor to the drawdown, but that physical processes also play an important role.