Biogeochemistry of Marine Dissolved Organic Matter

3rd Edition - July 4, 2024
Editors: Dennis A. Hansell, Craig A. Carlson
Language: English
Hardback ISBN:
9 7 8 - 0 - 4 4 3 - 1 3 8 5 8 - 4
eBook ISBN:
9 7 8 - 0 - 4 4 3 - 1 3 8 5 9 - 1

Biogeochemistry of Marine Dissolved Organic Matter, Third Edition is the most up-to-date revision of this fundamental reference on the biogeochemistry of marine dissolved organi… Read more

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Biogeochemistry of Marine Dissolved Organic Matter, Third Edition is the most up-to-date revision of this fundamental reference on 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. This indispensable manual edited by the most distinguished experts in the field is addressed to graduate students, marine scientists, and all professionals interested in advancing their knowledge of the field.

Cover image
Title page
Table of Contents
Copyright
Dedication
Contributors
Preface
Chapter 1 Why dissolved organics matter: Take 3—The messiness of nature
Abstract
Acknowledgments
1.1 Introduction
1.2 How different are DOC and POC sorption processes, and do these differences affect their biological lability and thus concentration in the ocean?
1.3 How important is the physical state of marine organic compounds to their availability to organisms—Who eats what?
1.4 How important are small-scale physical-biological interactions to DOC concentrations and compositions?
1.5 Quantification of DOC input/removal from sediments, submarine volcanoes, hydrothermal vents, and submarine groundwater discharge
1.6 Is photochemistry as important as microbial degradation in marine aerosols?
1.7 Is DOC concentration increasing or decreasing with climate change?
1.8 One more thought…
References
Chapter 2 Chemical characterization and cycling of dissolved organic matter
Abstract
Acknowledgments
2.1 Introduction
2.2 Isolation of dissolved organic matter from seawater
2.3 Biopolymers in HMWDOM
2.4 Humic substances in solid-phase extractable DOM (SPE-DOM)
2.5 Links between DOM composition and cycling
2.6 Future research
References
Chapter 3 A witches’ brew: Dissolved metabolites in seawater
Abstract
Acknowledgments
3.1 Introduction
3.2 Analytical methods to detect metabolites and small molecules in seawater
3.3 Biogeochemical significance of metabolites and small molecules in seawater
3.4 Summary
References
Chapter 4 Tracing DOM in the ocean with UV-visible spectroscopy
Abstract
Acknowledgments
4.1 Introduction
4.2 UV-visible spectroscopy of DOM
4.3 Sources and sinks
4.4 Ocean distributions
4.5 Conclusions and future research needs
References
Chapter 5 DOM production, removal, and transformation processes in marine systems
Abstract
Acknowledgments
5.1 Introduction
5.2 DOM production processes
5.3 DOM removal processes
5.4 DOM transformation and accumulation
5.5 The priming effect
5.6 Microbial community structure and DOM utilization
5.7 Summary and challenges
References
Chapter 6 Sediment pore waters
Abstract
6.1 Preface
6.2 Introduction
6.3 Composition and dynamics of bulk pore water DOM
6.4 Composition and dynamics of DOM at the compound and compound-class levels
6.5 Modeling DOM cycling in marine sediments
6.6 Controls on DOM concentrations in sediments
6.7 The role of benthic DOM fluxes in the oceanic carbon and nitrogen cycles
6.8 Concluding thoughts
References
Chapter 7 Dissolved organic matter in submarine hydrothermal systems
Abstract
Acknowledgments
7.1 Introduction
7.2 Processes affecting organic compositions
7.3 Isotopic changes to DOM during hydrothermal circulation
7.4 Concentrations and compositions of hydrothermal DOM
7.5 Potential impacts on the molecular composition of seawater DOM
7.6 Impacts likely differ across ocean basins
7.7 Major unknowns
References
Chapter 8 Dissolved organic nitrogen
Abstract
Acknowledgments
8.1 Introduction
8.2 DON concentrations and distributions
8.3 The semilabile and refractory DON pools
8.4 The labile DON pool—Sources of DON
8.5 The labile DON pool—Sinks for DON
References
Chapter 9 Biogeochemistry of organic phosphorus in the sea: Advances, challenges, and opportunities
Abstract
Acknowledgments
9.1 Introduction
9.2 Methodology: DOP quantification and pool characterization
9.3 Selected case studies
9.4 Prospectus for the future
References
Chapter 10 Organic metal-binding ligands in the dissolved organic matter pool
Abstract
Acknowledgments
10.1 Introduction
10.2 Organic metal-binding ligand composition
10.3 Metal-binding ligand distributions in the global ocean
10.4 Conclusions and future directions
References
Chapter 11 Marine photochemistry of organic matter: Processes and impacts
Abstract
Acknowledgments
11.1 Introduction
11.2 Caveats and cautionary notes
11.3 Impact of photochemistry on elemental cycles
11.4 DOM photolability spectrum and fate of terrigenous DOM in the ocean
11.5 Photochemical environments, intermediates, and reactions
11.6 Modeling photochemical rates
11.7 Future directions
References
Chapter 12 The volatile organic carbon component of dissolved organic matter in the ocean
Abstract
Acknowledgments
12.1 Introduction
12.2 The chemical nature of VOCs
12.3 VOC–taxonomy relationships
12.4 VOC production and photosynthetic metabolism
12.5 Summary points
References
Chapter 13 Reasons behind the long-term stability of dissolved organic matter
Abstract
13.1 Introduction: The paradox of DOM persistence
13.2 The environment hypothesis
13.3 The intrinsic recalcitrance hypothesis
13.4 The molecular diversity or dilution hypothesis
13.5 The unifying ecology of molecules concept
13.6 Implications in the context of climate change
References
Chapter 14 Riverine DOM
Abstract
Acknowledgments
14.1 Introduction
14.2 Land to ocean transport
14.3 Riverine DOM composition
14.4 The human footprint
References
Chapter 15 Dissolved organic matter in the Arctic Ocean
Abstract
Acknowledgments
15.1 Introduction
15.2 Sources of DOM to the Arctic Ocean
15.3 Composition of DOM within the Arctic Ocean
15.4 DOM distribution and exchanges with subpolar oceans
References
Chapter 16 Dissolved organic carbon in the South China Sea
Abstract
Acknowledgments
16.1 Introduction
16.2 DOC distribution in the South China Sea
16.3 DOC production, transformation, and consumption
16.4 DOC stocks and fluxes
16.5 Summary and perspectives
References
Glossary
Chapter 17 Dynamics of dissolved organic carbon in the global ocean
Abstract
Acknowledgments
17.1 Introduction
17.2 Global distribution
17.3 Net DOC production in the upper ocean
17.4 DOC export with overturning circulation
17.5 Deep ocean DOC enrichment due to sinking biogenic particles
17.6 Current understanding and opportunities for advancement
References
Chapter 18 Modeling DOM from the ecosystem to global scales
Abstract
Acknowledgments
18.1 Introduction
18.2 Modeling carbon and energy flows
18.3 Modeling more complex organic matter dynamics
18.4 Data-constrained models of DOC cycling
18.5 Global distribution, inventories, and production rates of DOC
18.6 Carbon export and sequestration by DOC
18.7 Areas for future advancement in DOM modeling
References
Index

Life Sciences

Physical Sciences & Engineering

Social Sciences & Humanities

Health

Biogeochemistry of Marine Dissolved Organic Matter

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Dennis A. Hansell

Craig A. Carlson