Sulfur Biogeochemistry of the Salton Sea, California PDF Download
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Author: Brandi Kiel Reese
Publisher:
ISBN:
Category : Agricultural pollution
Languages : en
Pages : 218
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Book Description
Author: Brandi Kiel Reese
Publisher:
ISBN:
Category : Agricultural pollution
Languages : en
Pages : 218
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Book Description
Author: Mary Ann Tiffany
Publisher:
ISBN:
Category : Algal blooms
Languages : en
Pages : 386
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Book Description
Restoration of the Salton Sea, a large salt lake in the desert area of southeastern California, is presently under consideration by state and federal agencies. It experiences wildly fluctuating fish populations, algal blooms and occasions of anoxia with toxic levels of hydrogen sulfide. Overturn events, caused by windstorms, occur from early summer to early fall leading to upwelling. These are associated with patches of bright green water with low oxygen and high sulfide levels in surface waters, called "green tides", and are visible by satellite. Orders of magnitude drops in both phytoplankton and zooplankton populations occur in these green waters. Phytoplankton was studied over the three years 1997-1999 as well as in fall 2005 during a "green tide" event. Major groups were dinoflagellates, diatoms, cryptomonads and a raphidophyte. A euglenoid was often abundant in green waters. Biovolume densities and chlorophyll a concentrations each year were highest in spring and lowest within green waters in August or September. An increase in abundance of large cells and colonial algae over the three years is attributed to a release in grazing pressure due to the decline in the planktivorous fish, tilapia. Ciliates were the major protozooplankters but usually accounted for less than half of the zooplankton in 1997-1999. Large ciliates increased in abundance over the three-year period, likely due to decreasing fish populations. An anaerobic ciliate, Sonderia sp., became abundant during the anoxic green water events. Anecdotal reports of "green tides" date back decades. Usually attributed to algal blooms, these are due to suspended microscopic gypsum crystals. Formed when sulfide-rich bottom waters mix into oxygen-rich surface waters, the crystals give a bright signal in the green waveband, and serve as an indicator of these sulfide irruptions. Gypsum blooms have been observed by satellite every year during 1979-1985 and 1998-2006, generally in summer or fall and in mid-lake, lasting days to a week or more. Their occurrences has been also been accompanied by mass mortalities of fish and have increased in intensity and duration since 2002 due to a decrease in fish populations and an increase in decomposition of organic matter at depth
Author: Stuart H. Hurlbert
Publisher: Springer Science & Business Media
ISBN: 140208806X
Category : Science
Languages : en
Pages : 193
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Book Description
This volume deals with many aspects of the physical and chemical limnology of the Salton Sea, California’s largest lake and a lake that may soon to be the object of a multi-billion dollar restoration project. Formed in 1905 by an accidental breaching of outtake structures on the Colorado River, and maintained since then by large and steady inflows of agricultural wastewaters, it has long served as an important habitat for fish and waterbirds and as a major recreational area for people. Highlly eutrophic and with a salinity that is steadily rising and now nearly 50 g/L, it is a lake in great trouble. Most fish species have disappeared, and large fish and bird dieoffs have been common in recent decades. Many of the papers in this volume represent studies undertaken with the aim of informing the re-engineering of this ecosystem so that its value to wildlife and man can be restored or enhanced.
Author: Dennis A. Hansell
Publisher: Elsevier
ISBN: 0443138591
Category : Science
Languages : en
Pages : 870
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Book Description
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 Sea, a region receiving a great deal of attention in recent decades - Offers contributions by world-class research leaders
Author: P. A. Trudinger
Publisher: Springer Science & Business Media
ISBN: 3662265826
Category : Science
Languages : en
Pages : 703
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Book Description
This volume contains a selection of papers presented to the Fourth Internation~l Symposium on Environmental Biogeochemistry (ISEB), and a conference on Biogeochemistry in Relation to Mining Industry and Environmental Pollution (Leaching Conference), held in Canberra, Aust ralia on August 26-31 and September 3-4, 1979, respectively. The ISEB were established to provide "a forum for uninhibited exchange of information and ideas among the biological, chemical, atmospheric and geolorical scientists working in the common area of biogeochemistry, encompassing soil and other earth sciences as well as the hydrosphere and atmosphere", By linking the fourth ISEB with the Leachin~ Conference the scope of discussions was extended to encompass the application of biogeochemical processes to the mining industry. This wide-ranging philosophy is reflected in the breadth and diversity of the subjects covered in this book. The published papers are expanded versions of those presented at the meetings. They have all been scrutinized by at least one referee in addition to the editors. About 20% of the contributions to the meetings are not included, either because authors did not wish to publish or because the papers were not accepted by the editors.
Author:
Publisher:
ISBN:
Category : Aquatic biology
Languages : en
Pages : 752
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Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 312
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Book Description
"Education, arts and social sciences, natural and technical sciences in the United States and Canada".
Author: Earl Ingerson
Publisher:
ISBN:
Category : Biochemistry
Languages : en
Pages : 680
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Book Description
Author:
Publisher:
ISBN:
Category : Biogeochemistry
Languages : en
Pages : 444
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Book Description
Author: William J. Mitsch
Publisher: John Wiley & Sons
ISBN: 047028630X
Category : Technology & Engineering
Languages : en
Pages : 309
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Book Description
New focused text introduces readers to wetland ecosystems and systems approaches to studying wetlands With its comprehensive coverage of wetland science, management, and restoration, Mitsch and Gosselink's Wetlands has been the premier reference on wetlands for more than two decades. Now, the coverage of specific wetland ecosystem types from earlier editions of this acclaimed work has been updated, revised, and supplemented with additional content in order to create this new text focusing exclusively on wetland ecosystems. This book now complements Wetlands, Fourth Edition. Following an introduction to ecosystems in general and wetland ecosystems in particular, Wetland Ecosystems examines the major types of wetlands found throughout the world: coastal wetlands, freshwater marshes and forested swamps, and peatlands. The final chapter reviews three fundamental systems approaches to studying wetlands: mesocosms, full-scale experimental ecosystems, and mathematical modeling. This new text features: Updated descriptions of the hydrology, biogeochemistry, and biology of the main types of wetlands found in the world New content introducing general ecosystems, wetland ecosystems, whole ecosystem and mesocosm experiments with wetlands, and systems ecology and modeling A detailed description of the ecosystem services provided by wetlands A broad international scope, including many examples of wetlands located outside North America Two new coauthors offering new perspectives and additional insights into the latest ecosystem and modeling techniques An abundance of illustrations helps readers understand how different biological communities and the abiotic environment in wetland ecosystems interact and function. Tables and text boxes provide at-a-glance summaries of key information. Lastly, each chapter concludes with a list of recommended readings. This text has been designed as an introduction for students and professionals in wetland ecology and management, general ecology, environmental science, and natural resource management.
