This extensive work focuses on an important group of temperate freshwater fish, approaching the topic from the perspectives of both biology and aquaculture. It compiles the latest research on fish belonging to the Percidae family and describes in detail all biological aspects relevant to the culture of different species, including ecology, reproductive physiology, feeding and nutrition, genetics, immunology, stress physiology and behavior. It also considers commercial fish production and fish farming topics, such as protocols for induction of gonad maturation, spawning, incubation and larval rearing. Expert contributors not only provide a critical peer review of scientific literature but also original research data, and identify effective practical techniques. The book features chapters on systematics, ecology and evolution, on development, metabolism and husbandry of early life stages and on growth, metabolism, behavior and husbandry of juvenile and grow-out stages. Furthermore, the authors consider genetic improvement and domestication, as well as diseases and health management, crucial to the readers' understanding of these fish and how they can be cultured. Both researchers of percid fish biology and aquaculture professionals who are considering intensive and pond culture of percid fishes will value this timely and comprehensive handbook.)

In the 21st Century, the world will see an unprecedented migration of people moving from rural to urban areas. With global demand for water projected to outstrip supply in the coming decades, cities will likely face water insecurity as a result of climate change and the various impacts of urbanisation. Traditionally, urban water managers have relied on large-scale, supply-side infrastructural projects to meet increased demands for water; however, these projects are environmentally, economically and politically costly. Urban Water Security argues that cities need to transition from supply-side to demand-side management to achieve urban water security. This book provides readers with a series of in-depth case studies of leading developed cities, of differing climates, incomes and lifestyles from around the world, that have used demand management tools to modify the attitudes and behaviour of water users in an attempt to achieve urban water security. Urban Water Security will be of particular interest to town and regional planners, water conservation managers and policymakers, international companies and organisations with large water footprints, environmental and water NGOs, researchers, graduate and undergraduate students. Robert C. Brears is the founder of Mitidaption, Mark and Focus, is Director on the International Board of the Indo Global Chamber of Commerce, Industries and Agriculture, and a Visiting Fellow (non-resident) at the Center for Conflict Studies at MIIS, Monterey, USA.

River Restoration River restoration initiatives are now widespread across the world. The research efforts undertaken to support them are increasingly interdisciplinary, focusing on ecological, chemical, physical as well as societal issues. River Restoration: Political, Social, and Economic Perspectives provides a comprehensive overview of research in the field of river restoration in humanities and the social sciences. It illustrates how, in the last thirty years or so, such approaches have evolved and strengthened within the restoration sciences. The scientific community working in this domain has structured itself, often regionally and circumstantially, to critically assess and improve restoration policies and practices. As a research field, river restoration tackles three thematic axes: Human-river interactions - especially perceptions and practices of rivers, and how these interactions can be changed by restoration projects Political processes, with a particular interest in governance and decision-making, and a specific emphasis on the question of public participation in restoration projects Evaluation of the social and economic benefits of river restoration River Restoration: Political, Social, and Economic Perspectives encompasses these three topics, and more, to provide the reader with the most up-to-date and holistic view of this constantly evolving area. The book will be of particular interest to human and social scientists, biophysical scientists (hydrologists, geomorphologists, ecologists), environmental scientists, public policy makers, design or planning officers, and anyone working in the field of river restoration.

The Chernobyl Nuclear Power Plant (NPP) disaster that occurred in Ukraine on April 26, 1986, was one of the most devastating in human history. Using this as a case study, the AGU monograph "Groundwater Vulnerability: Chernobyl Nuclear Disaster" is devoted to the problem of groundwater vulnerability, where the results of long-term field and modeling investigations of radionuclide transport in soil and groundwater, within the Ukrainian part of the Dnieper River basin (Kyiv region of Ukraine), are discussed. The authors provide a comprehensive review of existing literature on the assessment of groundwater vulnerability and then describe an improved methodology, which is developed based on integration of the methods of hydrogeological zonation and modeling of anomalously fast migration of radioactive contaminants from the land surface toward groundwater. This volume also includes the evaluation of the effect of preferential and episodic flow on transport of radionuclides toward the aquifers and risk assessment of groundwater vulnerability, which can further assist future researchers in developing remediation technologies for improving drinking water quality. Further, this volume sheds light on the consequences of groundwater contamination from nuclear disasters and assists with assessing the risks associated with contamination and developing effective remediation technologies.

Volume highlights include discussions of the following: - Assessment of groundwater vulnerability to contamination from the Chernobyl nuclear disaster- Novel analytical results of the 25-year investigations of groundwater contamination caused by Chernobyl-born radionuclides- The wealth of data on different modes of radioactive transport in the atmosphere, water, and soils, and along the food chains- The hydrogeological and physico-chemical processes and factors in groundwater contaminated zones- The applicability of commonly used methods of the evaluation of groundwater vulnerability- A unique method of fluid dynamics that involves an anomalously fast migration of contaminants through zones of preferential flow from the land surface toward groundwater- Building confidence in the assessment of migration pathways of radionuclides in the biosphere- Assessment and prediction of the consequences of the nuclear accident, which can shed light on protection from global nuclear accidents- Analogue information for different nuclear waste disposal and environmental projects around the world

Physical Characteristics of Estuaries.

Northern New England Estuaries.

Southern New England Estuaries.

Middle Atlantic Estuaries.

Southeastern Estuaries.

South Florida Seagrasses.

Mangrove Estuaries: South Florida, Gulf of Mexico.

Gulf of Mexico Estuaries: Florida, Louisiana.

Southern California Estuaries.

Puget Sound.

Species Index.

More than the lifeblood of our natural world, Texas rivers have nourished the human spirit for as long as people have gathered on their banks. A living bond has flowed between Texas writers and rivers ever since the 1960 publication of John Graves's classic journey along the Brazos, Goodbye to a River.Many of Texas' leading writers have had their hearts captured by a river, and they have created sparkling accounts of the waterways they love. Now, editors Steven L. Davis and Sam L. Pfiester have assembled the best of those works into a revelatory collection of diverse literary voices. Ranging from the desert canyonlands of the Rio Grande to the swampy Big Thicket, from crystal clear Hill Country streams to the Red River's treacherous quicksand, Viva Texas Rivers! showcases many classic writings along with brand new essays written for this volume. The literary nonfiction is complemented by flashes of poetry that brilliantly reflect these curving ribbons of light. Authoritative and expertly edited, Viva Texas Rivers! offers shimmering accounts of hidden paradises, as well as searing exposEs of abuse and despoliation. Yet even in the bleakest times, as these writers have found, Texas rivers can bestow a sacred grace -and unexpected redemption. Viva Texas Rivers! brings you as close to the living nirvana of a Texas River as you can get without launching yourself into a canoe and following a great blue heron as it glides just above the breaking rapids, leading you around the bend as the river flows onward toward the best places in our hearts.

In a time of rapid climatic, industrial and technological changes in molluscan shellfish producing and exporting regions, it is of the utmost importance to keep a keen eye on developing trends. This collection of recent research in molluscan shellfish safety, risk assessment, risk management, regulation and analytical methods presented at the 8th ICMSS (International Conference on Molluscan Shellfish Safety) offers valuable insights in the latest scientific findings. Dans le contexte actuel de changements climatiques, industriels et technologiques rapides dans les regions qui produisent et qui exportent des mollusques, il est essentiel de rester a l'affut des nouvelles tendances. Ce recueil des recents travaux de recherche dans les domaines de la salubrite des mollusques, des evaluations des risques, de la gestion des risques, de la reglementation et des methodes d'analyse presentes lors de la 8e Conference internationale sur la salubrite des coquillages (ICMSS) vous aidera a le faire.

Following from Fish for Life - Interactive Governance for Fisheries (Kooiman et al., 2005), which presents an interdisciplinary and intersectoral approach to the governance of capture and aquaculture fisheries, this volume pursues what interactive governance theory and the governability perspective contribute to the resolution of key fisheries problems, these include overfishing, unemployment and poverty, food insecurity, and social injustice. Since these problems are varied and can be felt among governments, resource users and communities globally, the diagnosis must be holistic, and take account of principles, institutions, and operational conditions. The authors argue that 'wicked problems' and institutional limitations are inherent to each setting, and must be included in the analysis. The volume thereby offers a new lens and a systematic approach for analysing the nature of problems and challenges concerning the governance of fisheries, explores where these problems are situated, and how potential solutions may be found. "It now seems clear that the crisis in the world's fisheries [is] a much larger and more complex problem than many had imagined. Yet, examining it through the lens of governability may offer the best hope for alleviating it--as well as alleviating similar crises in other social systems." James R. McGoodwin (Professor Emeritus, University of Colorado)

Whatever theory may be advanced to explain diurnal migration, the underlying reactions involved must be demonstrated conc- sively in the laboratory before the explanation can be ?nally accepted George L. Clarke 1933 p. 434 In oceans and lakes, zooplankton often make diel vertical migrations (DVM), descending at dawn and coming up again in late afternoon and evening. The small animals cover distances of 10-40 m in lakes or even a few hundred metres in the open oceans. Although not as spectacular as migrations of birds or the massive movements of large mammals over the African savannas, the numbers involved are very large and the biomass exceed the bulk of the African herds. For example, in the Antarctic oceans swarms of "Krill" may cover kilometres across, with thousands of individuals per cubic metre. These Euphausiids are food for whales, the most bulky animals on earth. Zooplankton are key species in the pelagic food web, intermediary between algae and ?sh, and thus essential for the functioning of the pelagic community. Prey for many, they have evolved diverse strategies of survival and DVM is the most imp- tant one. Most ?sh are visually hunting predators and need a high light intensity to detect the often transparent animals. By moving down, the well-lit surface layers are avoided but they have to come up again at night to feed on algae.

This book is an integrated approach to present a detailed case study in order to address the taxonomic and ecological features of this planktonic choreotrich protists in an iconic tropical mangrove wetland - Sundarban. To identify each tintinnid species, emphasis is given with regards to taxonomic features accompanied by high resolution images. This work explores the interaction between man-induced stress and the impact of climate change which is threatening the tintinnid biodiversity, and suggests, for example, remedial measures by adopting sound management strategies. Tintinnids (Protozoa: Ciliata: Tintinnida) are a coherent group ecologically recognized as micro-zooplankton. They deserve special attention because of their unique biodiversity and their crucial, functional role in the marine food chain. This is a valuable reference source for students, researchers, policy planners and coastal managers engaged in the field of marine biology, microbial ecology and marine bio-resources.

Microalgae are one of the most studied potential sources of biofuels and bioenergy. This book covers the key steps in the production of renewable biofuels from microalgae - strain selection, culture systems, inorganic carbon utilisation, lipid metabolism and quality, hydrogen production, genetic engineering, biomass harvesting, extraction. Greenhouse gas and techno-economic modelling are reviewed as is the 100 year history of microalgae as sources of biofuels and of commercial-scale microalgae culture. A summary of relevant basic standard methods used in the study of microalgae culture is provided. The book is intended for the expert and those starting work in the field.

One of the major questions in the evolution of animals is the transition from unicellular to multicellular organization, which resulted in the emergence of Metazoa through a hypothetical Urmetazoa. The Comparative Embryology of Sponges contains abundant original and literary data on comparative embryology and morphology of the Porifera (Sponges), a group of 'lower Metazoa'. On the basis of this material, original typization of the development of Sponges is given and the problems concerning origin and evolution of Porifera and their ontogenesis are discussed. A morphogenetic interpretation of the body plan development during embryogenesis, metamorphosis and asexual reproduction in Sponges is proposed. Special attention is given to the analysis of characteristic features of the ontogenesis in Porifera. The book pursues three primary goals: 1) generalization of all existing information on individual development of sponges, its classification and a statement according to taxonomical structure of Porifera; 2) revealing of heterogeneity of morphogenesis and peculiarities of ontogeneses in various clades of Porifera, and also their correlations with the organization, both adult sponges, and their larvae; 3) revealing homology of morphogeneses in both Porifera and Eumetazoa, testifying to the general evolutionary roots of multicellular animals, and peculiar features of sponges' morphogeneses and ontogenesis. This book will be of interest to embryologists, zoologists, morphologists and researchers in evolutionary biology.

When Ray Whaley set out to accomplish his bucket-list goal of kayaking the length of the St. Johns River, it didn't take long for him to realize he was in over his head. The longest river in Florida, stretching 310 miles between Vero Beach and Jacksonville, the St. Johns had been paddled in its entirety by only a handful of people. Whaley found himself blazing his own trail on an exciting and unexpected adventure.In Journey of a River Walker, Whaley tells the whole story of his experience, from his preparations beforehand to the techniques he learned along the way to his daily escapades and discoveries on the water. Learning from Whaley's recommendations, along with his mistakes and close calls, readers will gain valuable knowledge that will help them in planning their own paddling trips. Whaley's journey also highlights the delicate ecosystem of the river and the importance of conserving its environment, raising awareness of the fragile yet critical link between humans and nature.A volume in the series Wild Florida, edited by M. Timothy O'Keefe.

A multidisciplinary study of the Bera Lake is presented here, focusing on natural resources throughout the lake s catchment area and assessing environmental impact. This applied limnology study examines issues relating to land development including soil erosion and nutrient loss in the catchment area, severe pollution of water, sediment resources in open waters and wetlands, and reduction of aquatic and bird populations. The chapters provide a comprehensive view of problems, risks and possible mitigation measures associated withthis great natural habitat in Malaysia. The book highlights the technology and methods used to estimate both soil erosion rate and nutrient loss from the lake catchment, including an explanation of the measurement of sedimentation rate in Bera Lake, using 137Cs and 210Pb radioisotopes. The author examines the current and historic situation of contamination in sediments, presents an ecological risk assessment and finally describes a master management plan, proposing practices to mitigate the environmental impacts of existing agricultural projects and practices to control future projects. Readers will learn of a decrease in the watershed supply of water to the Bera Lake, of shoaling, degradation of water and sediment quality and the extinction of several kinds of flora and fauna. This volume also offers an approach to sustainable land use, with regard to natural resources conservation."

"Rivers and Society" explores the ways in which human/river relations have shaped important historical transformation processes. With examples ranging from explorations of classical agrarian civilizations such as the Indus, Angkor and Maya, to analyses of the role of water in the modernization process of countries such as Spain, Britain and Japan, the international contributors shed new light on the ways in which the key relationship between humans and water has given rise to new forms of social organization, new technologies and economic activities

"A World of Rivers" explores the confluence of human and environmental change on ten of the great rivers of the world. Ranging from the Yellow River in China to Central Europe's Danube, the book journeys down the most important rivers in all corners of the globe. Wohl shows us how pollution, such as in the Ganges and in the Ob of Siberia, has affected biodiversity in the water. But rivers are also resilient, and Wohl stresses the importance of conservation and restoration to help reverse the effects of human carelessness and hubris. What these diverse rivers share is a critical role in shaping surrounding landscapes and biological communities, and Wohl's book ultimately makes a strong case for the need to steward positive change in the world's great rivers.

This book offers a comprehensive review of how plastic pollution is affecting fresh and marine waters, and what the current challenges in plastic waste assessment and management in the aquatic environment are. Plastic waste comprises particles with heterogeneous physicochemical properties such as large size-range, different shapes and polymer types with various additives determining their environmental fate and risk. This complexity raises several open research questions which are explored in this book. Examples are the plastic uptake by aquatic organisms, degradation processes as well as sources and sinks in the environment. Readers will discover real case studies of plastic pollution detection and management in different parts of the world, including Asia, America and Europe, which provide an integrated overview of the global scope of this issue. This book and the companion volume Plastics in the Aquatic Environment - Part II: Stakeholders' Role Against Pollution are valuable resources to students, researchers, policymakers and environmental managers interested in plastic pollution and working towards its reduction.

Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 192."Antarctic Subglacial Aquatic Environments" is the first volume on this important and fascinating subject. With its underlying theme of bridging existing knowledge to future research, it is a benchmark in the history of subglacial lake exploration and study, containing up-to-date discussions about the history and background of subglacial aquatic environments and future exploration. The main topics addressed are identification, location, physiography, and hydrology of 387 subglacial lakes; protocols for environmental stewardship and protection of subglacial lake environments; details of three programs aiming to explore Vostok Subglacial Lake, Ellsworth Subglacial Lake, and Whillans Subglacial Lake over the next 3-5 years; assessment of technological requirements for exploration programs based on best practices for environmental stewardship and scientific success; and knowledge of subglacial lakes as habitats for microbial life and as recorders of past climate and ice sheet change. Its uniqueness, breadth, and inclusiveness will appeal to microbiologists and those interested in life in extreme environments, paleoclimatologists and those interested in sedimentary records of past changes, glaciologists striving to understand how water beneath glaciers affects their flow, and those engaged in developing technology to undertake direct measurement and sampling of extreme environments on Earth and in the solar system.

More than half of America's waterbodies are unsafe for swimming, fishing, and as sources of drinking. Why? Because of unsustainable city building and poor farming practice. Beyond water quality problems, dysfunctional streams cause flooding and erosion of property, leading to neighbourhood blights. Not only can this be reversed, but repair of degraded urban streams can be a powerful agent for reinventing the physical environments of post-industrial cities. This requires trans-disciplinary collaboration between the fields of ecological engineering and urban design. The American city was uniquely premised on fusions of landscape and urbanism: a tradition with plenty of room for innovation. However, watershed plans remain data-and-policy-driven documents with a singular interest in repairing waterbodies. They have little to say about the city and urban design. Conversely, urban planning has not codified the value of healthy ecosystems within which cities are built. In this age of the Anthropocene, when most ecosystems are human-dominated, resilient urban design must account for biological processes. This book introduces watershed management into urban design with one simple demand: that every new development contribute to watershed stewardship, where infrastructure and building deliver ecological services in addition to urban services. The Conway Urban Watershed Framework Plan formulates a planning vocabulary for use among professionals and decision-makers to engage this new design market.

This concise, readable introduction to limnology (the science of investigating the structure and function of inland waters), places the subject in the context of modern ecology. Unlike most ecological textbooks, which use examples taken almost exclusively from terrestrial systems, this book integrates the fields of limnology and ecology by presenting empirical data drawn entirely from freshwater ecosystems in order to advance ecological theories (limnoecology).
This second edition builds upon the strengths of the first with the structure of the book following the same hierarchical concept of ecology, from habitat properties, individuals, populations, coupled populations and communities to ecosystems. However, it has been thoroughly revised throughout to incorporate findings from new technologies and methods (notably the rapid development of molecular genetic methods and stable isotope techniques) that have allowed a rapid and ongoing development of the field. There is a new emphasis on food webs, species diversity and ecosystem functioning, climate change, and conservation management. Key ecological questions are examined in the light of the latest experimental evidence. Throughout the text evolutionary theory is applied to an understanding of freshwater ecosystems, thereby filling a niche between traditional limnology and evolutionary ecology.
This accessible text is suitable for both undergraduate and graduate students taking courses in limnology, freshwater ecology, and aquatic biology as well as the many professional limnologists, ecologists and conservation biologists requiring a concise but authoritative overview of the topic.

Palaeohydrology includes studies of how the composition, distribution and movement of water on the land surface of the earth over the last 20,000 years has related to past environmental changes.

Investigations provide information about the way that hydrology, and in particular, flood discharges, have changed in the past. They also show long-term hydrological trends and their implications for future changes. Past hydroclimate reconstructions related to a variety of past climate and environmental change sequences are critical to understanding future potential changes. They can provide data sets for validating the response of climate models with which to predict future change.

Key features of this book include:

• a world summary of our understanding of palaeohydrological changes.

• real world examples of past hydrological scenarios in Europe, America, Africa, Asia and Australia.

• a long-term perspective of impacts of global changes on the hydrological regime during the last 20,000 years.

• an associated website containing database, expanded bibliography and reports from international programmes.

This book will be of use to researchers in fluvial geomorphology, hydrology and sedimentology, as well as professional hydrologists, sedimentologists, palaeocologists, Quaternary scientists and environmental consultants. It will make a good reference book for 2nd/3rd year undergraduates taking courses in Applied Hydrology, Global Change, Environmental Geology, Fluvial Geomorphology, Sedimentology within Departments of Geography, Environmental Science and Geology.

Water plays an important part in today's environmental concerns. Since the publication of the first edition there have been rapid developments in the application of hydrology, geomorphology and ecology to stream management. In particular, growth has occurred in the areas of stream rehabilitation and the evaluation of environmental flow needs. The concept of stream health has been adopted as a way of assessing stream resources and setting management goals.

"Stream Hydrology: An Introduction for Ecologists Second Edition" documents recent research and practice in these areas. Chapters provide information on sampling, field techniques, stream analysis, the hydrodynamics of moving water, channel form, sediment transport and commonly used statistical methods such as flow duration and flood frequency analysis. Methods are presented from engineering hydrology, fluvial geomorphology and hydraulics with examples of their biological implications. This book demonstrates how these fields are linked and utilised in modern, scientific river management. "Emphasis on applications, from collecting and analysing field measurements to using data and tools in stream management." "Updated to include new sections on environmental flows, rehabilitation, measuring stream health and stream classification." "Critical reviews of the successes and failures of implementation." "Revised and updated windows-based software." This book is essential reading for 2nd/3rd year undergraduates and postgraduates of hydrology, stream ecology and fisheries science in Departments of Physical Geography, Biology, Environmental Science, Landscape Ecology, Environmental Engineering and Limnology. It would be valuable reading forprofessionals working in stream ecology, fisheries science and habitat management, environmental consultants and engineers.

This book offers a comprehensive review of current systems for fish protection and downstream migration. It offers the first systematic description of the currently available technologies for fish protection at hydropower intakes, including accurate and timely data collected by the authors and other researchers. It describes how to design and test them in agreement with the guidelines established from the EU Water Framework Directive. The book includes important information about fish biology, with a special focus on swimming and migration mechanisms. It offers a robust bridge between concepts in applied ecology and civil hydraulic engineering, thus providing biologists and hydraulic engineers with an authoritative reference guide to both the theory and practice of fish protection. It is also of interest for planners, public authorities as well as environmental consultants

Long heralded as a city treasure herself, expert "mudlarker" Lara Maiklem is uniquely trained in the art of seeking. Tirelessly trekking across miles of the Thames' muddy shores, where others only see the detritus of city life, Maiklem unearths evidence of England's captivating, if sometimes murky, history-with some objects dating back to 43 AD, when London was but an outpost of the Roman Empire. From medieval mail worn by warriors on English battlefields to nineteenth-century glass marbles mass-produced for the nation's first soda bottles, Maiklem deduces the historical significance of these artifacts with the quirky enthusiasm and sharp-sightedness of a twenty-first century Sherlock Holmes. Seamlessly interweaving reflections from her own life with meditations on the art of wandering, Maiklem ultimately delivers-for Anglophiles and history lovers alike-a memorable treatise on the objects we leave in our wake, and the stories they can reveal if only we take a moment to look.

From spring-fed headwaters to quiet, marshy creeks and from tannin-stained northern reaches to broad southern tributaries winding through farmland, Wisconsin is home to 84,000 miles of streams. This guide is the ultimate companion for learning about Wisconsin stream life. Developed by Wisconsin Department of Natural Resources scientists, with information provided by dozens of biologists and ecologists, Field Guide to Wisconsin Streams is accessible to anglers, teachers and students, amateur naturalists, and experienced scientists alike. More than 1,000 images illustrate the species in this field guide, augmented by detailed descriptions that include look-alikes, ecological and taxonomic notes, and distribution maps. It identifies: more than 130 common plants; all 120 fishes known to inhabit Wisconsin streams; 8 crayfishes; 50 mussels; 10 amphibians; 17 reptiles; 70 families of insects; other commonly found invertebrates.