Biogeochemistry of Marine Dissolved Organic Matter
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Marine dissolved organic matter (DOM) is a complex mixture of molecules found throughout the world's oceans. It plays a key role in the export, distribution, and sequestration of carbon in the oceanic water column, posited to be a source of atmospheric climate regulation. Biogeochemistry of Marine Dissolved Organic Matter, Second Edition, focuses on the chemical constituents of DOM and its biogeochemical, biological, and ecological significance in the global ocean, and provides a single, unique source for the references, information, and informed judgments of the community of marine biogeochemists. Presented by some of the world's leading scientists, this revised edition reports on the major advances in this area and includes new chapters covering the role of DOM in ancient ocean carbon cycles, the long term stability of marine DOM, the biophysical dynamics of DOM, fluvial DOM qualities and fate, and the Mediterranean Sea. Biogeochemistry of Marine Dissolved Organic Matter, Second Edition, is an extremely useful resource that helps people interested in the largest pool of active carbon on the planet (DOC) get a firm grounding on the general paradigms and many of the relevant references on this topic.
Key Features
- Features up-to-date knowledge of DOM, including five new chapters
- The only published work to synthesize recent research on dissolved organic carbon in the Mediterranean Sea
- Includes chapters that address inputs from freshwater terrestrial DOM
Readership
Marine scientists and upper-level undergraduate/graduate students studying, particularly those studying chemistry and microbiology
Table of Contents
- Dedication
- List of Contributors
- Foreword
- Preface
- Chapter 1: Why Dissolved Organics Matter: DOC in Ancient Oceans and Past Climate Change
- Abstract
- Acknowledgements
- I Overview
- II Marine Carbon Cycling
- III Interpreting the Geological Past
- IV Implications for Future Global Change?
- Chapter 2: Chemical Characterization and Cycling of Dissolved Organic Matter
- Abstract
- Acknowledgments
- I Introduction
- II Isolation of DOM from Seawater
- III Chemical Characterization of DOM
- IV Links Between DOM Composition and Cycling
- V Future Research
- Chapter 3: DOM Sources, Sinks, Reactivity, and Budgets
- Abstract
- Acknowledgments
- I Introduction
- II DOM Production Processes
- III DOM Removal Processes
- IV DOM Accumulation
- V DOM Reactivity
- VI The Priming Effect
- VII Microbial Community Structure and DOM Utilization
- VIII DOC in the Ocean Carbon Budget
- IX Summary
- Chapter 4: Dynamics of Dissolved Organic Nitrogen
- Abstract
- Acknowledgments
- I Introduction
- II DON Concentrations in Aquatic Environments
- III Composition of the DON Pool
- IV Sources of DON to the Water Column
- V Sinks for DON
- VI Summary
- Chapter 5: Dynamics of Dissolved Organic Phosphorus
- Abstract
- Acknowledgments
- I Introduction
- II Terms, Definitions, and Concentration Units
- III The Early Years of Pelagic Marine P-Cycle Research (1884-1955)
- IV The Pelagic Marine P-Cycle: Key Pools and Processes
- V Sampling, Incubation, Storage, and Analytical Considerations
- VI DOP in the Sea: Variations in Space
- VII DOP in the Sea: Variations in Time
- VIII DOP Pool Characterization
- IX DOP Production, Utilization, and Remineralization
- X Conclusions and Prospectus
- Chapter 6: The Carbon Isotopic Composition of Marine DOC
- Abstract
- Acknowledgments
- I Introduction
- II Carbon Isotope Geochemistry Primer
- III DOC Isotope Ratio Methods
- IV Isotopic Composition of Bulk Marine DOC
- V Isotopic Composition of DOM Constituents
- VI Summary and Conclusions
- Chapter 7: Reasons Behind the Long-Term Stability of Dissolved Organic Matter
- Abstract
- Acknowledgments
- I Introduction: The Paradox of DOM Persistence
- II The Environment Hypothesis
- III The Intrinsic Stability Hypothesis
- IV The Molecular Diversity Hypothesis
- V Concluding Remarks
- Chapter 8: Marine Photochemistry of Organic Matter: Processes and Impacts
- Abstract
- Acknowledgments
- I Introduction
- II Impact of Photochemistry on Elemental Cycles
- III DOM Photolability Spectrum and Fate of Terrestrial DOM in the Sea
- IV Impact of Photochemistry on Other Marine Processes
- V Modeling Photochemical Rates and Impact on Marine Carbon Cycling
- VI Future Directions
- Chapter 9: Marine Microgels
- Abstract
- Acknowledgments
- I Introduction
- II What Are Polymer Gels?
- III Structure, Properties, and Dynamics of Marine Polymer Gels
- IV Phase Transition
- V Marine Gels in the Atmosphere and Their Relevance for Cloud Formation
- Chapter 10: The Optical Properties of DOM in the Ocean
- Abstract
- Acknowledgments
- I Introduction
- II UV-Visible Spectroscopy of DOM
- III Sources of CDOM to the Marine Environment
- IV Removal of CDOM in the Marine Environment
- V Distribution
- VI Conclusions and Future Research Needs
- Chapter 11: Riverine DOM
- Abstract
- Acknowledgments
- I Introduction
- II Land Transport
- III Riverine DOM Composition
- IV Anthropogenic Influences
- Chapter 12: Sediment Pore Waters
- Abstract
- Acknowledgments
- I Preface
- II Introduction
- III Composition and Dynamics of Bulk Pore Water DOM
- IV Composition and Dynamics of DOM at the Compound and Compound-Class Levels
- V Modeling DOC Cycling in Marine Sediments
- VI Controls on DOC Concentrations in Sediments
- VII The Role of Benthic DOM Fluxes in the Ocean Carbon and Nitrogen Cycles
- VIII Concluding Thoughts
- Chapter 13: DOC in the Mediterranean Sea
- Abstract
- Acknowledgments
- I Introduction
- II DOC Distribution at Basin Scale
- III The Role of DOC in Carbon Export
- IV DOC Inventory and Fluxes
- V DOM Stoichiometry
- VI DOC Dynamics in the Med Sea, a Comparison with the Oceans
- VII Summary
- VIII Open Questions
- Chapter 14: DOM in the Arctic Ocean
- Abstract
- Acknowledgments
- I Introduction
- II Composition of DOC Within the Arctic Ocean
- III Distribution and Mass Balance of DOM
- Chapter 15: Modeling DOM Biogeochemistry
- Abstract
- Acknowledgments
- I Introduction
- II Modeling Approaches
- III Modeling the Role of DOM in Ocean Biogeochemistry
- IV Lability in Focus: Concepts and Definitions
- V Discussion
- Index
Product details
- No. of pages: 712
- Language: English
- Copyright: © Academic Press 2014
- Published: September 29, 2014
- Imprint: Academic Press
- eBook ISBN: 9780124071537
- Hardcover ISBN: 9780124059405
About the Editors
Dennis Hansell
Dennis Hansell has conducted research on the biogeochemistry of major elements in the ocean for more than 30 years. His analyses have largely focused on data collected in the conduct of international projects addressing hydrographic and biogeochemical surveys of the global ocean. Questions of particular interest revolve around the role of dissolved organic matter (DOM) in the cycling of marine carbon, such as the accumulation of DOM in the surface ocean, its export to great depth with overturning circulation, its fate upon export, and its introduction to the deep ocean via sinking biogenic particles. This work has been done in all the major ocean basins; thus, the research products lend themselves to furthering understanding of the ocean as a global system. Hansell served as co-editor of the first two editions of this book.
Affiliations and Expertise
Department of Ocean Sciences, Rosenstiel School of Marine, Atmospheric and Earth Science, University of Miami
Craig Carlson
Craig Carlson is a Professor in the Department of Ecology, Evolution, and Marine Biology at the University of California, Santa Barbara. For the past three decades Carlson’s research interests have been shaped by an interdisciplinary blend of organic biogeochemistry and marine microbial ecology. His research contributions include assessing the dissolved organic matter (DOM) production, removal, and transformation processes in marine systems, providing accurate measurements of DOM inventories, determining the role of DOM export in the biological carbon pump and it’s the fate after export within the dark ocean. The overall goal of these research efforts strives to make quantitative links between microbial community dynamics and DOM biogeochemistry in the open sea. Carlson served as co-editor of the first two editions of this book.
Affiliations and Expertise
University of California, Santa Barbara, USA
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