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Physical and Chemical Processes in the Aquatic Environment

Physical and Chemical Processes in the Aquatic Environment
Author: Erik R. Christensen
Publisher: John Wiley & Sons
Total Pages: 447
Release: 2014-09-15
Genre: Technology & Engineering
ISBN: 1118111761

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There is need in environmental research for a book on fresh waters including rivers and lakes. Compared with other books on the topic, this book has a unique outline in that it follows pollution from sources to impact. Included in the text is the treatment of various tracers, ranging from pathogens to stable isotopes of elements and providing a comprehensive discussion which is lacking in many other books on pollution control of natural waters. Geophysical processes are discussed emphasizing mixing of water, interaction between water and the atmosphere, and sedimentation processes. Important geochemistry processes occurring in natural waters are described as are the processes specific to nutrients, organic pollutants, metals, and pathogens in subsequent chapters. Each of these chapters includes an introduction on the selected groups, followed by the physicochemical properties which are the most relevant to their behavior in natural waters, and the theories and models to describe their speciation, transport and transformation. The book also includes the most up to date information including a discussion on emerging pollutants such as brominated and phosphate flame retardants, perflurochemicals, and pharmaceutical and personal care products. Due to its importance an ecotoxicology chapter has been included featuring molecular biological methods, nanoparticles, and comparison of the basis of biotic ligand model with the Weibull dose-response model. Finally, the last chapter briefly summarizes the regulations on ambient water quality.


Biological Opinion

Biological Opinion
Author:
Publisher:
Total Pages: 66
Release: 2001
Genre: Coho salmon
ISBN:

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Fish Conservation

Fish Conservation
Author: Gene S. Helfman
Publisher: Island Press
Total Pages: 0
Release: 2007-07-15
Genre: Science
ISBN: 9781559635967

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Fish Conservation offers, for the first time in a single volume, a readable reference with a global approach to marine and freshwater fish diversity and fishery resource issues. Gene Helfman brings together available knowledge on the decline and restoration of freshwater and marine fishes, providing ecologically sound answers to biodiversity declines as well as to fishery management problems at the subsistence, recreational, and commercial levels. Written in an engaging and accessible style, the book: considers the value of preserving aquatic biodiversity offers an overview of imperiled fishes on a taxonomic and geographic basis presents a synthesis of common characteristics of imperiled fishes and their habitats details anthropogenic causes of decline examines human exploitation issues addresses ethical questions surrounding exploitation of fishes The final chapter integrates topics and evaluates prospects for arresting declines, emphasizing the application of evolutionary and ecological principles in light of projected trends. Throughout, Helfman provides examples, explores case studies, and synthesizes available information from a broad taxonomic, habitat, and geographic range. Fish Conservation summarizes the current state of knowledge about the degradation and restoration of diversity among fishes and the productivity of fishery resources, pointing out areas where progress has been made and where more needs to be done. Solutions focus on the application of ecological knowledge to solving practical problems, recognizing that effective biodiversity conservation depends on meeting human needs through management that focuses on long term sustainability and an ecosystem perspective.


Coastal Lagoons

Coastal Lagoons
Author: Michael J. Kennish
Publisher: CRC Press
Total Pages: 578
Release: 2010-06-15
Genre: Computers
ISBN: 1420088319

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Written by an outstanding group of contributors, this book examines the function and structure of coastal lagoonal ecosystems and the natural and anthropogenic drivers of change that affect them, most notably nutrient over-enrichment from coastal watersheds and airsheds. The contributors target the susceptibility of coastal lagoons to eutrophication, the indicators of eutrophic conditions, the influences of natural factors such as major storms and other climate effects, and the resulting biotic and ecosystem impairments that have developed. The book compares biogeochemical and ecological response to nutrient enrichment and other pollutants in lagoonal estuaries to those in other estuarine types.


Bringing Society Back In

Bringing Society Back In
Author: Edward P. Weber
Publisher: MIT Press
Total Pages: 338
Release: 2003-02-14
Genre: Science
ISBN: 9780262265089

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In the last two decades, people in a growing number of localities in the United States have developed grassroots ecosystem management (GREM) as a means to resolve policy problems affecting their environment, economy, and communities. Ad hoc and voluntary groups of environmentalists, developers, businesspeople, federal and state resource managers, farmers, loggers, local citizens, and those representing recreation interests use deliberation and consensus to enhance public policy performance. Instead of focusing on specific issues such as air pollution, GREM emphasizes the integrated management of entire watersheds and ecosystems. But what happens to democratic accountability in these collaborative efforts? Despite concerns that they might result in special interest government, the acceleration of environmental degradation, and an end-run around national environmental protection laws, this book suggests otherwise. Bringing Society Back In establishes a theoretical framework for exploring issues of policy performance and democratic accountability raised by GREM. Through three case studies—the Applegate Partnership in Oregon, the Henry's Fork Watershed Council in Idaho, and the Willapa Alliance in Washington state—it explores the mechanisms used to determine how accountability works. The book finds that by combining traditional and formal governance structures with informal institutions, GREM can be accountable to individuals, communities, surrounding regions, and the nation. The book also identifies conditions under which GREM is most likely to achieve democratic accountability. In addition, it investigates the connection between accountability and policy performance. The evidence suggests that GREM can produce environmental policy outcomes that are supportive not only of the environment and economy, but also of environmental sustainability.