Water is our natural heritage, our miracle of life. However, our increasingly technological society has become indifferent to water. Far from being pure, modern drinking water around the world contains many undesirable chemical and bacterial contaminants. The existing techniques employed for the disinfection of water are either energy-intensive or have by-products harmful to human health. Drinking Water Disinfection Techniques reviews these processes and explores novel technologies for water disinfection synergistic with existing techniques. The book covers a wide audience and gives a comprehensive review of various physical, chemical, and hybrid techniques commonly used for the disinfection of water as well as newer emerging technologies in terms of their mode of action, scale of operation, efficacy, merits, and demerits. It broadly addresses the issues related to water disinfection in three sections: Disinfection techniques-chemical, physical, and hybrid (combination)-and their likely scale of operation efficacy Disinfection by-product as a function of water source and the type of treatment Emerging and novel techniques, including new work on cavitation, an economical, energy-efficient, and simple alternative to the conventional methods of disinfection Drinking Water Disinfection Techniques effectively combines the chemical, physical, biological, and engineering principles of water disinfection in one text. Discussing both conventional and novel techniques used for disinfection and the economics involved, the book gives a comprehensive review of various physical, chemical, and hybrid techniques used for disinfection to create potable water.

Water scarcity is an increasing problem in many parts of the world, yet conventional supply-side economics and management are insufficient to deal with it. In this book the role of water trading as an instrument of integrated water resources management is explored in depth. It is also shown to be an instrument for conflict resolution, where it may be necessary to reallocate water in the context of increasing scarcity. Recent experiences of implementation in different river basins have shown their potential as instruments for improving allocation. These experiences, however, also show that there are implementation challenges and some limitations to trading that need to be considered. This book explores the various types of water trading formulas through the experience of using them in different parts of the world. The final result is varied because, in most cases, trading is conditioned by the legal and institutional framework in which the transactions are carried out. The role of government and the definition of water rights and licenses are critical for the success of water trading. The book studies the institutional framework and how transactions have been undertaken, drawing some lessons on how trading can improve. It also analyses whether trading has really been a positive instrument to manage scarcity and improve water ecosystems and pollution emission problems in those parts of the world which are most affected. The book concludes by making policy proposals to improve the implementation of water trading.

The Mekong Region has come to represent many of the important water governance challenges faced more broadly by the mainland Southeast Asian region. This book focuses on the complex nature of water rights and social justice in the Mekong region. The chapters delve into the diverse social, political and cultural dynamics that shape the various realities and scales of water governance in the region, in an effort to bring to the forefront some of the local nuances required in the formulation of a larger vision of justice in water governance. It is hoped that this contextualized analysis will deepen our understanding of the potential of, and constraints, on water rights in the region, particularly in relation to the need to realize social justice. The authors show how vitally important it is that water governance is democratized to allow a more equitable sharing of water resources and counteract the pressures of economic growth that may pose risks to social welfare and environmental sustainability.

Several general books are available on ultraviolet light and its applications. However, this is the first comprehensive monograph that deals with its application to water and wastewater treatment. There is a rapidly growing interest in using UV light in water sanitation due to the increased knowledge of the potential health and environmental impacts of disinfection byproducts. Ultraviolet Light in Water and Wastewater Sanitation integrates the fundamental physics applicable to water and wastewater sanitation, the engineering aspects, and the practical experience in the field. The text analyzes the concerns associated with this application of UV light and brings together comprehensive information on the presently available UV technologies applicable to water and wastewater treatment including: lamp technologies, criteria of evaluation and choice of technology; fundamental principles; performance criteria for disinfection; design criteria and methods; synergistic use of UV and oxidants (advanced oxidation); and functional requirements and potential advantages and drawbacks of the technique. Ultraviolet Light in Water and Wastewater Sanitation is the only treatise currently available combining fundamental knowledge, recommendations for design, evaluations of performance, and future prospects for this application. Water and wastewater treatment professionals, water utility employees, governmental regulators, and chemists will find this book an essential and unique reference for a technology which has received growing regulatory acceptance.

Exponential growth of the worldwide population requires increasing amounts of water, food, and energy. However, as the quantity of available fresh water and energy sources directly affecting cost of food production and transportation diminishes, technological solutions are necessary to secure sustainable supplies. In direct response to this reality, this book focuses on the water-energy-food nexus and describes in depth the challenges and processes involved in efficient water and energy production and management, wastewater treatment, and impact upon food and essential commodities. The book is organized into 4 sections on water, food, energy, and the future of sustainability, highlighting the interplay among these topics. The first section emphasizes water desalination, water management, and wastewater treatment. The second section discusses cereal processing, sustainable food security, bioenergy in food production, water and energy consumption in food processing, and mathematical modeling for food undergoing phase changes. The third section discusses fossil fuels, biofuels, synthetic fuels, renewable energy, and carbon capture. Finally, the book concludes with a discussion of the future of sustainability, including coverage of the role of molecular thermodynamics in developing processes and products, green engineering in process systems, petrochemical water splitting, petrochemical approaches to solar hydrogen generation, design and operation strategy of energy-efficient processes, and the sustainability of process, supply chain, and enterprise.

As urban growth outstrips water supplies, how can the global challenge of providing "liquid gold" be met? Mixing history and policy analysis, Steven Erie tells the compelling story of the Metropolitan Water District of Southern California (MWD)-one of the world's largest and most important public water agencies-and its role in building the world's 8th largest economy in a semi-desert. No tawdry tale of secret backroom conspiracies-as depicted in the famed film noir Chinatown-this fresh telling concerns an unheralded regional institution, its entrepreneurial public leadership, and pioneering policymaking. Using untapped primary sources, the author re-examines this great regional experiment from its obscure 1920s-era origins, through the Colorado River Aqueduct and State Water Projects, to today's daunting mission of drought management, water quality, environmental stewardship, and post-9/11 supply security. A key focus is MWD's navigation of recent epic water battles: San Diego's combative quest for water independence from MWD and L.A.; lingering conflicts over the Colorado River and northern California's fragile Bay-Delta ecosystem; and the myriad challenges posed by water markets, privatization, and water transfers. Facing unprecedented challenges, MWD is devising innovative formulas to sustain this improbable desert civilization. Beyond Chinatown concludes by considering MWD's Integrated Resources Plan as a global model for water-resources planning and management, water supply diversification and reliability, affordability, and environmental sustainability. Chinatown's seductive mythologies have obscured MWD's authentic, instructive history and lessons. Praise for Steve Erie's previous book, Globalizing L.A.: "This book is a must-read for anyone interested in the politics of Western cities, the politics of urban development, and especially the future politics of cities that are likely to be contenders in the increasingly competitive arena of global trade. . . . Erie's analysis will forever direct us to look first at certain public agencies to begin to understand larger patterns of economic growth in any metropolitan area."-Journal of Urban Affairs "[A] fascinating history of the Los Angeles region's great assets and the forces that drove their development. . . . One hundred years ago, it was improbable that the Los Angeles region would become the 10th largest economy in the world. In Globalizing L.A., Erie explains how that happened and then, fingers crossed, offers lessons on how California's largest and most diverse city and region can keep playing a leading role."-Los Angeles Times "Referencing an impressive body of recent academic research, Erie argues that world-class seaport and airport facilities confer substantial economic advantages and more facilitating links between local businesses and the global economy."-The Sacramento Bee "Erie has built a potent political-economy of urban development that recognizes the crucial role of the public sector in mediating globalizing processes . . . and this is a valuable lesson for academics, dockworkers, community developers, and environmental activists alike."-Economic Geography

In a simple, straightforward manner, this book presents most of the major process units for wastewater treatment, addressing what the unit is and how it basically works. Along with that it provides some of the math problems associated with each unit. Each math problem, presented in English units, is usually followed by a nearly identical problem in metric units. It also presents new concepts, such as information on process microbiology, in a comfortable language so the reader can concentrate on the subject matter instead of the language used to present it. Simplified Wastewater Treatment Plant Operations provides comprehensive and technically accurate wastewater information in a clear and concise manner. The related workbook provides readers with a place to write in answers and work out problem solutions.

Fingerponds are earthen ponds dug at the edge of natural wetlands and stocked naturally with wild fish during flooding. They preserve the wetland environment in which they are situated while maintaining a productive culture system. In this study, the importance of organic manure applications in enhancing nutrient levels, phytoplankton and periphyton productivities and ultimately fish production was examined in experimental Fingerponds set up with the participation of local communities in Uganda. Results show that organic manures enhance algal development and fish production in Fingerponds, but close monitoring and control are needed. Fish yields in Fingerponds can be enhanced to 1500 - 2800 kg/ha over a functional period of 200 to 300 days using animal manure (e.g. chicken), fermented green manure and artificial substrates for periphyton development. Good management practices are required to regulate pond inputs and conditions. High clay turbidity, nitrogen limitation and high recruitment of fish can limit fish production. Overall, Fingerponds were shown to be an effective addition to protein production for poor riparian communities in East Africa and are recommended for adoption.

Field Practices for Wastewater Use in Agriculture discusses the growing importance of wastewater application in the field of agriculture. Addressing the tremendous need for the irrigation sector to reduce the demand for freshwater in agriculture, this volume looks at wastewater as a source for agricultural irrigation. The volume is divided into four sections: current and emerging issues in wastewater use in agriculture, wastewater management with biological systems, effective field practices for wastewater use, and case studies that provide information on scientific analytical studies on the environment under the influence of wastewater quality from different pollution sources. This book sheds light on the vast potential of wastewater use in agricultural irrigation while also considering safety of the agricultural products for human consumption. Much emphasis has also been given to technological aspects for the treatment of wastewater to protect our environment for better public health protection.

1. Captures advanced technologies and applications for assimilation and implementation and addresses a wide spectrum of water issues. 2. Provides real world applications and case studies of advanced spectral and spatial sensors combined with geospatially driven water process modelling. 3. Details applications of the latest remote sensor systems including GRACE, SMAP, AVIRIS, Sentential, MODIS, Landsat 8, RapidEye, AirSWOT, and pays special attention to multidisciplinary cases studies. 4. It is global in coverage with applications demonstrated by more than 170 experts from around the world. 5. Edited by extremely qualified authors with lifelong expertise in water sciences and with an extensive record in books and journal publications.

Northeast India, apart from being the rainiest in India, is drained by two large river systems of the world - the Brahmaputra and the Barak (Meghna) - both transnational rivers cutting across bordering countries. The region, known for its rich water resources, has been witnessing an increasing number of conflicts related to water in recent years. This volume documents the multifaceted conflicts and contestations around water in Northeast India, analyses their causes and consequences, and includes expert recommendations. It fills a major gap in the subject by examining wide-ranging issues such as cultural and anthropological dimensions of damming rivers in the Northeast and Eastern Himalayas; seismic surveys, oil extractions, and water conflicts; discontent over water quality and drinking water; floods, river bank erosion, embankments; water policy; transboundary water conflicts; and hydropower development. It also discusses the alleged Chinese efforts to divert the Brahmaputra River. With its analytical and comprehensive coverage, 18 case studies, and suggested approaches for conflict resolution, this book will be indispensable for scholars and researchers of development studies, governance and public policy, politics and international relations, water resources, environment, geography, climate change, area studies, economics, and sociology. It will also be an important resource for policymakers, bureaucrats, development practitioners, civil society groups, the judiciary, and media.

Even a cursory perusal of any analytical journal will demonstrate the increasing important of trace and ultra-trace analysis. And as instrumentation continues to develop, the definition of the term "trace element" will undoubtedly continue to change. Covering the composition and underlying properties of freshwater and marine systems, Analytical Measurements in Aquatic Environments provides the basis for understanding both. It discusses all aspects of analytical protocols from the handling of representative samples to the metrological evaluation of specific steps and whole procedures. The book covers: handling of representative samples sample preservation techniques extraction techniques speciation analytics solvent-free sample preparation for analysis application of biotests bioanalytical methods for monitoring green analytical chemistry-application of the concept of sustainability in analytical laboratories application of the Life Cycle Assessment approach quality control and quality assurance of analytical results enhanced techniques of sample preparation hyphenated analytical techniques Ecotoxicological considerations and the effort to achieve an increasingly accurate description of the state of the environment challenge analytical chemists who need to determine increasingly lower concentrations of various analytes in samples that have complex and even non-homogenous matrices. The newly coined expression "analytics" emphasizes the interdisciplinary nature of available methods for obtaining information about material systems, with many methods that exceed the strict definition of analytical chemistry. Drawing on the disciplines of chemistry, physics, computer science, electronics, material science, and chemometrics, this book provides in depth information on the most important problems in analytics of samples from aquatic ecosystems.

In recent years, the area dealing with the physical chemistry of materials has become an emerging discipline in materials science that emphasizes the study of materials for chemical, sustainable energy, and pollution abatement applications. Written by an active researcher in this field, Physical Chemistry of Materials: Energy and Environmental Applications presents methods for synthesizing and characterizing adsorbents, ion exchangers, ionic conductors, heterogeneous catalysts, and permeable porous and dense materials. It also discusses their properties and applications. The book explores various examples of these important materials, including perovskites, zeolites, mesoporous molecular sieves, silica, alumina, active carbons, carbon nanotubes, titanium dioxide, magnesium oxide, clays, pillared clays, hydrotalcites, alkali metal titanates, titanium silicates, polymers, and coordination polymers. It shows how the materials are used in adsorption, ion conduction, ion exchange, gas separation, membrane reactors, catalysts, catalysts supports, sensors, pollution abatement, detergency, animal nourishment, agriculture, and sustainable energy applications. Rising pollution levels and the need for sustainable energy have necessitated new ways of using certain materials to combat these problems. Focusing on this emerging discipline, Physical Chemistry of Materials describes the methods of syntheses and characterization of adsorbents, ion exchangers, ionic conductors, catalysts, and permeable materials. It tackles key issues in materials science and physical chemistry.

Green Energy: Sustainable Electricity Supply with Low Environmental Impact defines the future of the world's electricity supply system, exploring the key issues associated with global warming, and which energy systems are best suited to reducing it. Electricity generation is a concentrated industry with a few sources of emissions, which can be controlled or legislated against. This book explains that a green sustainable electricity system is one whose construction, installation, and operation minimally affect the environment and produce power reliability at an affordable price. It addresses the question of how to build such an electricity supply system to meet the demands of a growing population without accelerating global warming or damaging the environment. The green argument for conservation and renewable energies is a contradiction in terms. Although they produce no emissions, because renewable systems are composed of a large number of small units, a considerable amount of energy is required to produce, erect, and maintain them. This book is a response to that conundrum, answering key questions, such as: How can renewables be exploited to contribute the greatest energy input? Should coal be used for clean fuel and chemical production rather than for power generation? How quickly can we start to build the Green Energy system? The author has more than forty years of experience as an international journalist reporting on power-generating technologies and on energy policies around the world. Detailing the developmental history, and current state, of the global nuclear industry, he discusses the dire, immediate need for large quantities of clean, emission-free electric power, for both domestic and industrial uses. This book details how current technologies-particularly nuclear, combined cycle, and hydro-can be applied to satisfy safely the growing energy demands in the future.

This holistic book covers the richest area in North East India in terms of both explored and foreseen reserves of fossil fuels and other natural resources. Using a multidisciplinary approach, GIS, and geospatial data gathered from different case studies included, this book helps readers develop a thorough understanding of a highly dynamic big river, the Brahmaputra, and use it as a comprehensive resource for further understanding the science of rivers. It discusses the causal factors of decadal-scale fluvial dynamics, the nature of fluvial dynamics, lateral variability of the older flood plains and neotectonics in the shallow subsurface, and the overall trend of basin evolution at different depths.

Tasked by the Clean Water Act to restore and maintain the integrity of their waters, state and local governments must develop systems for assessing the health of the streams within their borders. They quickly find that one size does not fit all when it comes to sampling. Rapid Bioassessment of Stream Health examines the sampling techniques, laboratory methods, and data analysis necessary to create a protocol for analyzing the health of streams, using rapid bioassessment techniques. The editors explore how to determine reference streams in each ecoregion and subecoregion with specific indices of health. They provide field methods for monitoring and sampling invertebrates and laboratory methods for subsampling. The work focuses on the application of the EPA's Rapid Bioassessment Protocol (RBP) but suggests various techniques that can be used to improve sampling protocols and quality control, where necessary. It also includes general listings of health classifications, appendices of more than 300 streams that have been sampled, and a GIS method for designating the reference condition for purposes of comparison in each ecological unit. Although the EPA's RBP Manual is considered to be the standard of information on the types of metrics that can be used, this book explores, from a state regulatory standpoint, the practical development of such a system to begin compliance with critical sections of the Clean Water Act. A compendium of information about prioritizing those streams and small rivers requiring analysis, this book contains guidelines on the assessment of streams in a particular ecoregion and sampling streams that are at least impaired as points of comparison. It supplies guidance for the production of other rapid bioassessment tools customized to various ecoregions and subecoregions.

The natural scarcity of water in arid and semiarid regions, aggravated by man-made factors, makes it difficult to achieve a reliable water resources supply. Communities in these areas pay the price for thousands of years of water manipulation. Presenting important insight into the complexities of arid region hydrology, Engineering Hydrology of Arid and Semi-Arid Regions explores the key components for formulating and implementing integrated management approaches in catchment (wadi) systems. The book introduces the engineering hydrology of arid and semi-arid regions, covering meteorological processes and hydrology. The author discusses precipitation and precipitation losses, catchment characteristics, and runoff estimation methods. He also examines streamflow measurements and hydrographs, flood routing, and groundwater hydrology, including the basic equations of groundwater flow and analytic solutions describing flow aquifers, pumping tests, and salt water intrusion. Building on this foundation, the book then delineates sediment yield in watersheds and streams and the design of hydraulic structures for protection and management of water resources systems. It includes case studies, conversion tables, and modeling software. During the last two decades, research efforts and networking have enhanced the state of knowledge about arid and semi-arid areas, especially watershed and catchment systems. Pulling this information together into a comprehensive resource, this book provides a better understanding of wadi hydrology, capacity-building processes, water education and training, and institutional development. This understanding can then be used to select the appropriate tools to support water management and optimize the sustainable use of water resources. "When the well is dry, we learn the worth of water" - Benjamin Franklin

Whether addressing pollution problems or helping protect a specific use, watershed associations are finding that the competition for funds is getting harder. While we can grasp the value of our streams for fishing or kayaking and other services, or their cultural value, or their value to an ecosystem, putting a dollar value on those benefits is not an easy task, but it is sometimes a necessary one. A handbook for advocates and stakeholders, Environmental Economics for Watershed Restoration provides guidance to those who are interested in understanding and incorporating economic valuation in project prioritization and other decision-making aspects of stream or watershed restoration. It provides background on the types of ecological goods and services that are often valued and details the types of questions that must be asked in watershed project analysis. The book allows those who are not economists to be comfortable discussing things like contingent valuation, marginal costs, nonmarket goods, and other terms needed to satisfy the economic analysis requirements often needed to secure funding for projects. In some cases, economic analysis does require input from a trained economist, but in many cases the analysis needed to get a grip on the problem can be tackled by someone familiar with the situation, as long as he or she has access to essential economic guidance. Environmental Economics for Watershed Restoration can provide that guidance.

A successful modern heavy metal control program for any industry will include not only traditional water pollution control, but also air pollution control, soil conservation, site remediation, groundwater protection, public health management, solid waste disposal, and combined industrial-municipal heavy metal waste management. In fact, it should be a total environmental control program. Comprehensive in scope, Heavy Metals in the Environment provides technical and economical information on the development of a feasible total heavy metal control program that can benefit industry and local municipalities. The book discusses the importance and contamination of metals such as lead, chromium, cadmium, zinc, copper, nickel, iron, and mercury. It covers important research of metals in the environment, the processes and mechanisms for metals control and removal, the environmental behavior and effects of engineered metal and metal oxide nanoparticles, environmental geochemistry of high arsenic aquifer systems, nano-technology applications in metal ion adsorption, biosorption of metals, and heavy metal removal by expopolysaccharide-producing cyanobacteria. The authors delineate technologies for metals treatment and management, metal bearing effluents, metal-contaminated solid wastes, metal finishing industry wastes and brownfield sites, and arsenic-contaminated groundwater streams. They also discuss control, treatment, and management of metal emissions from motor vehicles. The authors reflect the breadth of the field and draw on personal experiences to provide an in-depth presentation of environmental pollution sources, waste characteristics, control technologies, management strategies, facility innovations, process alternatives, costs, case histories, effluent standards, and future trends for each industrial or commercial operation. The methodologies and technologies discussed are directly applicable to the waste management problems that must be met in all industries.

In recent years, the focus in hydrogeologic investigations has expanded to include aquifer sustainability as part of resource evaluations. While there are other books on the subject, Field Hydrogeology: A Guide for Site Investigations and Report Preparation provides the first integrated presentation of the American Society of Testing Materials (ASTM) standards, US Geological Survey (USGS), and US Environmental Protection Agency (EPA) field techniques. It also includes access to a website containing software for designing aquifer tests and aquifer-recharge experiments. Written by an author with more than 50 years of experience in hydrology and geology, this reference treats the subject from a field standpoint. Useful as a field guide or textbook, it contains standard methods for planning and undertaking hydrogeologic investigations. It incorporates case studies, contains a glossary of field-hydrogeology technical terms, and provides a detailed list of ASTM standards and key hydrologic Web sites. The guide is based on ASTM standards as well as EPA and US Department of Interior field technical manuals. The text covers hydrogeologic fundamentals, conceptual models, planning an investigation, surface investigations, subsurface investigations, field inventory, stream flow measurements, water quality measurements, and report preparation. This revised and updated Second Edition also includes new material on the history of hydrogeology, field safety, aquifers, groundwater quality, hydrogeologic maps, and federal regulations. It gives students and seasoned professionals a vast array of clearly written descriptive materials and an extensive source of references available at their fingertips. What's New in This Second Edition: New chapter on the history of hydrogeology New chapter on groundwater development and management, including US federal regulations and transboundary aquifers New material on field safety, groundwater quality and testing, and construction of hydrogeologic cross section and maps New international case studies New THEIS computer model to design aquifer tests Updated information on latest principles and techniques

1. Captures advanced technologies and applications for assimilation and implementation and addresses a wide spectrum of water issues. 2. Provides real world applications and case studies of advanced spectral and spatial sensors combined with geospatially driven water process modelling. 3. Details applications of the latest remote sensor systems including GRACE, SMAP, AVIRIS, Sentential, MODIS, Landsat 8, RapidEye, AirSWOT, and pays special attention to multidisciplinary cases studies. 4. It is global in coverage with applications demonstrated by more than 170 experts from around the world. 5. Edited by extremely qualified authors with lifelong expertise in water sciences and with an extensive record in books and journal publications.

Although there has been much empirical study within what has been referred to as "functional approaches to child language," there has yet to be a major attempt to compare and contrast such proposals. In addition, much of the work carried out within child language from a functionalist perspective has not been specific with regard to the nature of the approach adopted. In attempting to fill the gap, the author of this book begins with a comparison of various functionalist approaches. By concentrating on one domain -- agentivity and control -- Budwig develops a set of research questions based on an examination of findings stemming from linguistics, psycholinguistics, and developmental psychology, and also provides an in-depth discussion of related methodological issues. In the second part of the book, she traces the development of linguistic means to refer to oneself within a developmental-functionalist perspective. Individual case studies as well as group analyses of six children in the early phases of acquiring English grammar are provided. In the last part, Budwig examines the relationship between forms and functions in development with special attention to potential generalizations about the organization and reorganization of the children's linguistic systems.

Transparency in the regulation of water utilities is essential in order to ensure quality and fairness. This book explores and compares different regulatory arrangements in the water utilities sectors in three jurisdictions to determine which regulatory and ownership model is most transparent and why. The three jurisdictions considered are England (UK), Victoria (Australia) and Jakarta (Indonesia). Following an introduction to the importance of transparency in water utilities regulation, the book provides an overview of the three chosen jurisdictions and their legal and institutional frameworks. Through a comparison of these the author explores the contested and difficult terrain of "privatization", as (often) opposed to public ownership, in which it is shown that the relationships between transparency and ownership models are not as clear-cut as might be assumed. Chapters consider various aspects and outcomes of the regulatory process and the role of transparency, including topics such as regulators' internal governance mechanisms, utilities corporate governance, licensing and information flow, freedom of information and transparency in tariffs and pricing, as well as customer service. The book concludes with a summary of lessons learned to inform the refinement of transparency in utilities regulation.

[A] fascinating volume, which establishes marine environmental history as a major new discipline for academics as well as an exciting way to bring history and the natural world alive for the public. ANDREW A. ROSENBERG, UNIVERSITY OF NEW HAMPSHIRE The HMAP project is to be congratulated on this book, which presents vivid, evidence-based reconstructions of historical fisheries and the prolific ecosystems in which they were embedded. TONY J. PITCHER, UNIVERSITY OF BRITISH COLUMBIA The ingenuity and scholarship of the authors allow us to see ... how human societies have depended on and influenced marine living resources from periwinkles to whales. MIKE SINCLAIR, BEDFORD INSTITUTE OF OCEANOGRAPHY This book exalts the surprisingly fruitful marriage of historians and marine scientists - a union that has proven to be one of the most exciting developments in ocean research in recent years. KATHERINE RICHARDSON, UNIVERSITY OF COPENHAGEN For centuries the seas appeared to offer limitless supplies of food and other resources, their waters a cornucopia never to be exhausted. In more recent times, episodes such as the extreme exploitation and subsequent collapse of cod populations of the Grand Banks off Newfoundland have highlighted the fallaciousness of this view. Yet all too often the lessons from our historical interactions with marine animals are little known, let alone learned. Based on research for the History of Marine Animal Populations project, Oceans Past examines the complex relationship our forebears had with the sea and the animals that inhabit it. It presents eleven studies ranging from fisheries and invasive species to offshore technology and the study of marine environmental history, bringing together the perspectives of historians and marine scientists to enhance understanding of ocean management of the past, present and future. In doing so, it also highlights the influence that changes in marine ecosystems have upon the politics, welfare and culture of human societies.

This study assessed the downstream river system adaptation in response to upstream damming on the Ribb River, Ethiopia, to irrigate 15,000 ha. It combined primary and secondary data, and the application of remote sensing and mathematical modeling. The pre-dam morphodynamic trends of the Ribb River were analyzed for 59 years based on aerial photographs, satellite images, and newly collected field data. Three dam operation scenarios were developed to analyze the long-term hydro-morphological effects of the dam on the downstream river reaches. It also assessed the applicability of physics-based analytical equations (Equilibrium Theory) compared to a 1D numerical model (SOBEK-RE) to determine the least-morphologically impactful dam operation scenario on the river reaches downstream of the dam. Moreover, a HEC-RAS 2D hydrodynamic model was developed to assess the effect of the dam on the flooding extent of the Fogera Plain. This was used to study the potential implications of hydrological alteration on the ecology of the floodplain wetlands, as they are the habitats of important fish and bird species. The results contribute to knowledge on the hydro-morphological and environmental impacts of dams on downstream river systems. The developed methodologies and findings may be used to study future hydro-morphological and ecological changes that may arise due to other dam operations or climate change.