Freshwater ecosystems have the greatest species diversity per unit area and many endangered species. This book shows that, rather than being a marginal part of terrestrial protected area management, freshwater conservation is central to sustaining biodiversity. It focuses on better practices for conserving inland aquatic ecosystems in protected areas, including rivers, wetlands, peatlands, other freshwater and brackish ecosystems, and estuaries. The authors define inland aquatic ecosystems, showing just how diverse and widespread they are. They examine the principles and processes that are essential for the conservation of freshwater ecosystems and aquatic species. Major categories of threats to freshwater ecosystems and the flow-on implications for protected area design are described. Practical case studies are used to illustrate principles and practices applied around the world. Specific management needs of the main types of freshwater ecosystems are considered, as well as the management of freshwaters in the broader landscape, showing how natural resource governance processes can be harnessed to better manage freshwater biodiversity. The book offers commentary on how to adapt freshwater conservation practices to climate change and ends with an insightful synthesis.

Origins of fallout radionuclides Sediment records of fallout radionuclides Simple dating models Vertical mixing Numerical techniques Radiometric techniques Discussion Summary Acknowledgements References 10. chronostratigraphic techniques in paleolimnology. Svante Bjorck & Barbara Wohlfarth 205 Introduction Methods and problems Radiocarbon-dating different fractions of the sediment as a chronostratigraphic tool Dating of long (old) stratigraphies High resolution dating and wiggle matching dating versus absolute dating techniques of lacustrine sediments Concluding remarks Summary Useful www addresses Acknowledgements References 11. Varve chronology techniques. Scott Lamoureux 247 Introduction Methods Summary and future directions Acknowledgements References 12. Luminescence dating. Olav B. Lian & D. J. Huntley 261 Introduction The mechanism responsible for luminescence Dating and estimation of the paleodose Thermoluminescence dating Optical dating Evaluating the environmental dose rate xi Sample collection and preparation What types of depositional environments are suitable for luminescence dating? What can lead to an inaccurate optical age? Summary Acknowledgements References 13. Electron spin resonance (ESR) dating in lacustrine environments. Bonnie A. B. Blackwell 283 Introduction Principles of ESR analysis Sample collection ESR analysis ESR microscopy and other new techniques Applications and datable materials in limnological settings Summary Acknowledgements References 14. Use of paleomagnetism in studies of lake sediments. John King & John Peck 371 Introduction Recording fidelity of geomagnetic behavior by sediments Field and laboratory methods Holocene SV records Magnetostratigraphic studies of Neogene lake sediments Excursions, short events and relative paleointensity Conclusions Summary References 15. Amino acid racemization (AAR) dating and analysis in lacustrine environments."

Lake Baikal is the oldest, deepest and most voluminous lake on Earth, comprising one fifth of the World's unfrozen fresh water. It hosts the highest number of endemic animals recorded in any freshwater lake. Until recently it remained enigmatic why such a high diversity evolved in the isolated Lake Baikal. Focusing on the sponges (phylum Porifera) as an example, some answers are provided to fundamental questions on evolutionary forces. The characteristic feature of these animals is that they form their polymeric silicic acid skeleton enzymatically. This process is explored using modern molecular biological and cellular biological techniques to outline strategies to fabricate novel materials applicable in biomedicine and nanooptics.

"Pollutant Effects in Fresh Waters" provides a practical and concise introduction to the ecological consequences of water pollution in aquatic ecosystems. In tackling the problem of water quality deterioration this book combines the limnological and water pollution literature to describe how pollutants in wastewater affect populations of organisms in freshwater environments.
Substantially revised, updated and expanded, with additional specialist contributors, this retitled new edition of "Ecological Effects of Wastewater" will continue to focus on the effects and management of eutrophication, water quality standards to protect aquatic life, and widen the debate over micro organisms and their public health significance in the aquatic environment.
With ever tighter controls on pollution levels of freshwater bodies being implemented and enforced world wide, this book is essential reading for students of public health and environmental engineering, and a reference tool for professionals in consultancies, contractors and for those in regulatory and enforcement bodies.

CHOICE 'Highly Recommended for all readers' June 2021 Vol. 58 No. 10 This stunningly illustrated book goes far beyond a run-of-the-mill nature guide. It explores the fascinating life histories of Britain's freshwater fishes, a group of animals which, despite their importance and ubiquity in our diverse still and flowing fresh waters, has before now been rarely regarded and respected as 'wildlife'. Our native fishes tend generally to be considered as simply something for anglers to catch or for people to eat, yet they work enormously hard for us. Author Mark Everard, avid nature-watcher, angler and scientist, shows how freshwater fish provide food, ornamentation, sport and cultural identity, and highlights their huge importance for conservation as part of the living ecosystems upon which we all depend. He dives into the mysteries moving below the surface of our rivers and lakes, bringing the wonderful and fascinating world of the diversity of British freshwater fish species into plain sight and into mind. This unique book features over 100 full-colour photographs by pioneering photographer and filmmaker Jack Perks, whose work has featured on BBC Springwatch, The One Show and Countryfile. The book is filled with technical detail useful to conservationists and biology students. Most importantly, it is also presented in an accessible, visually attractive and engaging manner that will appeal to anybody with an interest in the natural world: the conservation-minded public, the angling community, and our nation of wildlife enthusiasts. Whatever your background, this book will open your eyes to our freshwater fishy wealth, and the many ways in which it enriches our lives.

IDEAL, the International Decade for East African Lakes, is a ten-year multi-national, multi-disciplinary investigation of the biological, geological, chemical, and physical limnology of the East African Lakes, taking into special account the Great Lakes of the East African Rift Valley and the climatology and paleoclimatology of the Rift Valley itself. The selected papers in this book serve as baseline knowledge for this intensive examination, with most of the contributing authors already actively researching these lakes. The oldest in the world and the largest on the continent, the lakes are vital resources for the indigenous populations of their basins. They are unique not only in their diverse populations of endemic species of fish and invertebrates, but in their sensitivity to climatic change, unusual circulation dynamics and water-column chemistry in relation to higher altitudes, and continuous record of climatic change in tropical Africa. This volume provides an overview of our current knowledge of the lakes combined with the most recent results of specific research efforts by African, American, and European investigators. Included also are some discussions on the impact of man, as well as comprehensive bibliographies.

Preface. Water and Society. Bacterial and Microbial Processes. Phytoplankton Dynamics and Community Structure. Productivity and Energy Flows. Fish and Fisheries. Interactions between Tropic Levels. Monitoring and Modelling. Water Pollution and Water Management. Concluding Remarks. Index.

Obituary: Edward Smith Deevey (1914-1988).- Palaeolimnology in the English Lakes - some questions and answers over fifty years.- Accuracy and precision in sediment chronology.- 241Am dating of lake sediments.- Accuracies in Po-210 determination for lead-210 dating.- How long was the Younger Dryas? Preliminary evidence from annually laminated sediments of Soppensee (Switzerland).- Absolute dating of late Quaternary Lacustrine sediments by high resolution varve chronology.- The record of deposition of radionuclides in the sediments of Ponsonby Tarn, Cumbria.- Deposition and transport of radionuclides within an upland drainage basin in mid-Wales.- Progress in understanding the chemical stratigraphy of metals in lake sediments in relation to acidic precipitation.- Spheroidal carbonaceous particles as a marker for recent sediment distribution.- Magnetic spherules in recent lake sediments.- Lake sediment records of erosional processes.- A multidisciplinary study of the lake Bjaresjoesjoen (S Sweden): land-use history, soil erosion, lake trophy and lake-level fluctuations during the last 3000 years.- Paleolimnology of Slapton Ley, Devon, UK.- Sequential inorganic chemical analysis of a core from Slapton Ley, Devon, UK.- Sediment characteristics in relation to cultivation history in two varved lake sediments from East Finland.- The influence of land use on the sedimentation of the river delta in the Kyroenjoki drainage basin.- Heavy metals (Cu and Zn) in recent sediments of Llangorse Lake, Wales: non-ferrous smelting, Napoleon and the price of wheat - a palaeoecological study.- A comparative study of heavy metal contamination and pollution in four Reservoirs in the English Midlands, UK.- Sedimentary diatom concentrations and accumulation rates as predictors of lake trophic state.- The sediment column as a record of trophic status: examples from Bosherston Lakes, SW Wales.- Recent changes to upland tarns in the English Lake District.- Palaeolimnological study of an environmental monitoring area, or, Are there pristine lakes in Finland?.- The eutrophication history of Lake Sarkinen, Finland and the effects of lake aeration.- Are we building enough bridges between paleolimnology and aquatic ecology?.- Weichselian chironomid and cladoceran assemblages from maar lakes.- Stratigraphy of the fossil Chironomidae (Diptera) from Lake Grasmere, South Island, New Zealand, during the last 6000 years.- Modern assemblages of arctic and alpine Chironomidae as analogues for late-glacial communities.- Paleolimnology of Neusiedlersee, Austria: the succession of ostracods.- Palaeolimnology of Neusiedlersee - II: the distribution of nutrients and trace metals.- Paleolimnological investigation of three manipulated lakes from Sudbury, Canada.- Dominant diatoms in the interglacial lake sediments of the Middle Pleistocene in Central and Eastern Poland.- Fossil diatom inferred reconstruction of the pH history of two acidic, clear water lakes from insular Newfoundland, Canada.- Taphonomy and diagenesis in diatom assemblages; a Late Pleistocene palaeoecological study from Lake Magadi, Kenya.- Palaeolimnological aspects of a Late-Glacial shallow lake in Sandy Flanders, Belgium.- Palaeolimnological studies of laminated sediments from the Shropshire-Cheshire meres.- Paleolimnological studies using sequential lipid extraction from recent lacustrine sediment: recognition of source organisms from biomarkers.- Vegetation change and pollen recruitment in a lowland lake catchment: Groby Pool, Leics (England).- Seasonal changes in sedimenting material collected by high aspect ratio sediment traps operated in a holomictic eutrophic lake.- Paleolimnology of a Polar Oasis, Truelove Lowland, Devon Island, N.W.T., Canada.- An environmental history of two freshwater lakes in the Larsemann Hills, Antarctica.- Paleolimnology of Qilu Hu, Yunnan Province, China.- Sedimentary features and the evolution of lake Honghu, central China.- Palaeolakes of the south central Sahara - probl

Theory Instrumentation NIR analysis of sediment samples Uses of NIRS in palaeolimnology Future perspectives Summary References Fly-ash particles. Neil Rose 319 12. Introduction A brief history Methods of extraction and enumeration Temporal distribution Spatial distribution Source apportionment The future Summary Acknowledgements References Part III: Stable Isotope Techniques 13. Application of stable isotope techniques to inorganic and biogenic carbonates. Emi Ito 351 Introduction Nomenclature and systematics of lake-water Mg/Ca and Sr/Ca ratios of lake-water of dissolved inorganic carbon (DIC) Carbonates in lake-sediments Mollusks Ostracodes Charaphytes Isotope analysis Preparation of carbonate samples for isotope analysis Conclusions Summary Acknowledgments References 14. Carbon and oxygen isotope analysis of lake sediment cellulose: methods and applications. Brent B. Wolfe, Thomas W. D. Edwards, Richard J. Elgood & Kristina R. M. Beuning 373 xi Introduction Stable isotope tracers in lake Historical development Methods Key criteria for paleohydrologic reconstruction Applications Future research directions Summary Acknowledgements References Nitrogen isotopes in palaeolimnology. Michael R. Talbot 15. 401 Introduction Nitrogen in lakes: forms and distribution Nitrogen isotopes Nitrogen isotope studies in palaeolimnology: sampling and measurement Some examples Closing remarks Summary Acknowledgments References Glossary, acronyms and abbreviations 441 Index 493 xiii PREFACE The explosive growth of paleolimnology over the past two decades has provided impetus for the publication of this series of monographs detailing the numerous advances and new techniques being applied to the interpretation of lake histories. This is the second volume in the series and deals mainly with physical and geochemical analytical techniques.

Multiple Stressors in River Ecosystems: Status, Impacts and Prospects for the Future provides a comprehensive and current overview on the topic as written by leading river scientists who discuss the relevance of co-occurring stressors for river ecosystems. River ecosystems are subject to multiple stressors that threaten their ecological status and the ecosystem services they provide. This book updates the reader's knowledge on the response and management of river ecosystems to multi-stress situations occurring under global change. Detailing the risk for biodiversity and functioning in a case-study approach, it provides insight into methodological issues, also including the socioeconomic implications.

For the first time in limnofaunistic bibliography, the present taxonomic knowledge about the different clades of chelicerata having adapted to an aquatic or amphibious lifestyle along various evolutionary pathways is brought together in an overview for the Central-European fauna. A total number of 746 taxa is covered, over 99 % of these at species level. In Volume 7/2-1 altogether 211 species are treated - 70 species of spiders, 7 species of Astigmata (3 of which to be identified only at family, genus, resp. species group level), 17 species of Oribatida, 27 species and one subspecies of Halacaridae, 45 species of terrestrial Parasitengona (4 of which to be identified only at genus level) and 45 species of Hydrachnidia (4 Stygothrombioidea, 3 Hydrovolzioidea, 16 Hydrachnoidea and 22 Eylaoidea). Volume 7/2-2 deals with 179 species of Hydrachnidia (58 Hydryphantoidea and 121 Lebertioidea). This third volume (Volume 7/2-3) includes taxonomic keys and ecological information for 355 species of the two highly diverse Hydrachnidia superfamilies Hygrobatoidea (241 species and one subspecies) and Arrenuroidea (113 species). The chelicerata volumes of this series are a basic tool for all limnologists interested in diversity and ecology - in particular for biologists investigating the ecotones between ground and surface water, between bottom substrata and open water, and between water and land.

Paleolimnology is a rapidly developing science that is now being used to study a suite of environmental and ecological problems. This volume is the fourth handbook in the Developments in Paleoenvironmental Research book series. The first volume (Last & Smol, 2001a) examined the acquisition and archiving of sediment cores, chronological techniques, and large-scale basin analysis methods. Volume 2 (Last & Smol, 2001b) focused on physical and chemical methods. Volume 3 (Smol et al. , 2001), along with this book, summarize the many biological methods and techniques that are available to study long-term environmental changeusing information preserved in sedimentary profiles. A subsequent volume (Birks et al. , in preparation) will deal with statistical and data handling procedures. It is our intent that these books will provide sufficient detail and breadth to be useful handbooks for both seasoned practitioners as well as newcomers to the area of paleolimnology. These books will also hopefully be useful to non-paleolimnologists (e. g. , limnologists, archeologists, palynologists, geographers, geologists, etc. ) who continue to hear and read about pal- limnology, but have little chance to explore the vast and sometimes difficult to access journal-based reference material for this rapidly expanding field. Although the chapters in these volumes target mainly lacustrine settings, many of the techniques described can also be readily applied to fluvial, glacial, marine, estuarine, and peatland environments. This current volume focuses on zoological indicators preserved in lake sediments, whilst Volume 3 focused on terrestrial, algal, and siliceous indicators.

This is the second edition of Freshwater Algae; the popular guide to temperate freshwater algae. This book uniquely combines practical information on sampling and experimental techniques with an explanation of basic algal taxonomy plus a key to identify the more frequently-occurring organisms. Fully revised, it describes major bioindicator species in relation to key environmental parameters and their implications for aquatic management. This second edition includes: the same clear writing style as the first edition to provide an easily accessible source of information on algae within standing and flowing waters, and the problems they may cause the identification of 250 algae using a key based on readily observable morphological features that can be readily observed under a conventional light microscope up-to-date information on the molecular determination of taxonomic status, analytical microtechniques and the potential role of computer analysis in algal biology upgrades to numerous line drawings to include more detail and extra species information, full colour photographs of live algae including many new images from the USA and China Bridging the gap between simple identification texts and highly specialised research volumes, this book is used both as a comprehensive introduction to the subject and as a laboratory manual. The new edition will be invaluable to aquatic biologists for algal identification, and for all practitioners and researchers working within aquatic microbiology in industry and academia.

Combining background knowledge and practical tools, Handbook of Inland Aquatic Ecosystem Management gives you an overview of how to manage inland waters in a holistic manner. It examines the problems that threaten aquatic inland water ecosystems and presents a set of toolboxes for solving them. The book focuses on lakes, reservoirs, ponds, rivers, wetlands, lagoons, and estuaries, including the predominant freshwater ecosystems as well as saline and brackish ecosystems. Understand Ecosystem Properties and Ecological Processes The book consists of two parts. The first part reviews the basic scientific knowledge needed in the environmental and ecological management of aquatic ecosystems, from limnology and ecology of inland water ecosystems to environmental physics and chemistry. It emphasizes the interacting processes that characterize all inland aquatic ecosystems and explains the scientific considerations behind the conservation principles and their applications. Define the Problems and Quantify Their Sources The second part of the book presents toolboxes that you can apply to achieve more holistic environmental and ecological management. After an overview of the environmental problems of inland aquatic ecosystems and their sources, the book examines toolboxes to help you identify the problem, namely mass balances, ecological indicators, and ecological models. It also discusses toolboxes that can be used to find an environmental management solution to the problem: environmental technology, cleaner technology, and ecotechnology. Integrate Science and Practical Toolboxes to Manage Inland Waters More Effectively This book shows you how to integrate biology, ecology, limnology, and chemistry with the toolboxes in an up-to-date, multidisciplinary approach to environmental management. It provides a powerful framework for identifying ecological mechanisms that interact with global environmental problems threatening inland aquatic ecosystems.

Rivers have been vitally important to human populations worldwide for millennia as “highways” for inland travel, and as sources of water for drinking, cooking, cleaning, manufacturing, irrigation, and power generation, as well as repositories for human, animal, and industrial wastes. This accessible textbook takes a broad approach to river ecology, covering the basics but going beyond by including topics that are often overlooked such as blackwater streams and rivers, tidal creek ecosystems, and reservoir limnology. Since most running water (lotic) systems have been altered or impacted by human activities, there is significant emphasis on anthropogenic impacts, including sedimentation, nutrient pollution and related eutrophication issues as well as the effects of dams and river fragmentation, power plant operations, chemical contamination, wastewater treatment discharges, industrial scale livestock production, invasive species, and rural and urban storm water runoff on river ecosystems. Advances in stream and river restoration are also discussed.

As in the terrestrial environment, most data collection from freshwater habitats to date falls into the survey, surveillance or research categories. The critical difference between these exercises and a monitoring project is that a monitoring project will clearly identify when we need to make a management response. A Model for Conservation Management and Monitoring Monitoring (as defined by Hellawell) is essentially a tool of practical conservation management, and Fig. 1.1 shows a simple, but effective, model for nature conser- tion management and monitoring. The need for clear decision-making is implicit in this model. First we must decide what would represent a favourable state for the key habitat or species, and then we must decide when to intervene if the state is (or becomes) unfavourable. A third, often overlooked, but equally important, decision concerns when we would consider the habitat or species to have recovered; this is unlikely to be the same point that we became concerned about it. This decision not only has resource imp- cations, it can also have major implications for other habitats and species (prey species are an obvious example). All of these decisions are essential to the devel- ment of an efficient and effective monitoring project.

Biota of the St. Marys River: habitat evaluation and environmental assessment.- Polycyclic aromatic hydrocarbons in surficial sediments and caged mussels of the St. Marys River, 1985.- Effects of pollution on benthic invertebrate communities of the St. Marys River, 1985.- Use of a geographic information system data base to measure and evaluate wetland changes in the St. Marys River, Michigan.- Limnological aspects of the St. Clair River.- Distribution and abundance of young fish in the St. Clair River and associated waters, Ontario.- Distribution and abundance of young fish in Chenal Ecarte and Chematogen Channel in the St. Clair River delta, Ontario.- Environmental quality assessment of the St. Clair River as reflected by the distribution of benthic macroinvertebrates in 1985.- Growth and overwinter survival of the Asiatic clam, Corbicula fluminea, in the St. Clair River, Michigan.- Deformities in larval Procladius spp. and dominant Chironomini from the St. Clair River.- Biota of Lake St. Clair: habitat evaluation and environmental assessment.- The plankton ecology of Lake St. Clair, 1984.- Plankton community structure in Lake St. Clair, 1984.- Phosphorus cycling by mussels (Unionidae: Bivalvia) in Lake St. Clair.- Biology of the exotic zebra mussel, Dreissena polymorpha, in relation to native bivalves and its potential impact in Lake St. Clair.- The Detroit River: effects of contaminants and human activities on aquatic plants and animals and their habitats.- Response of bacteria and phytoplankton to contaminated sediments from Trenton Channel, Detroit River.- Tumors in fish from the Detroit River.- Heavy metal contamination of sediments in the Upper Connecting Channels of the Great Lakes.- Application of a microcomputer-based algal fluorescence technique for assessing toxicity: Lake St. Clair and St. Clair River examples.- A method for evaluating the impact of navigationally induced suspended sediments from the Upper Great Lakes Connecting Channels on the primary productivity.- Heavy metals in aquatic macrophytes drifting in a large river.- Distribution of Hexagenia nymphs and visible oil in sediments of the Upper Great Lakes Connecting Channels.- Production of Hexagenia limbata nymphs in contaminated sediments in the Upper Great Lakes Connecting Channels.

The challenges that the world's running water systems now face have never been more numerous or acute; at the same time, these complex habitats remain absolutely crucial to human wellbeing and future survival. If rivers can ever be anything like sustainable, ecology needs to take its place as an equal among the physical sciences such as hydrology and geomorphology. A real understanding of the natural history and ecology of running waters must now be brought even more prominently into river management. The primary purpose of this textbook is to provide the up-to-date overview that students and practitioners will require to achieve this aim. The book's unifying focus is on rivers and streams as ecosystems in which the particular identity of organisms is not the main emphasis but rather the processes in which they are involved - specifically energy flow and the cycling of materials. It builds on the physicochemical foundations of the habitat templet and explores the diversity and adaptations of the biota, progressing from the population and community ecology of organisms and linking them to ecosystem processes and services in the wider biosphere via the complexities of species interactions and food webs. These include water quality and patterns of river discharge, as well as aesthetics, waste disposal, and environmental health. While the book is not primarily focused on application per se, each chapter addresses how humans affect rivers and, in turn, are affected by them. A final, future-oriented chapter identifies key strategic areas and sets a roadmap for integrating knowledge of natural history and ecology into policy and management. The Biology and Ecology of Streams and Rivers is an accessible text suitable for both senior undergraduate and graduate students taking courses in both lotic and general ecology as well as more established researchers, practitioners, managers, and conservationists requiring a concise and contemporary overview of running waters.

These volumes have, for over 30 years, been the most readily available source listing the scattered articles, theses, bulletins, and research on freshwater fish in the United States and Canada.

"The Handbook of Freshwater Fishery Biology" summarizes the available data on age, growth, length weight, fecundity, reproductive behavior feeding habits, and necessary environment for each freshwater species. The comparison of species is presented in a manner easily used by fishery mangers and biologists.

River systems involve a complex interaction of a rich diversity of microorganisms, plants and animals with their physical and chemical environment. Uniquely, the river habitat presents particular problems for organisms exposed to unidirectional currents, seasonal variation in flow, and disturbance due to pollution and other human interference. Drawing on chapters from the two volumes of The Rivers Handbook, this book describes river organisms - the taxa, their adaptations and ecologies, and their trophic interactions. After considering the principles, practice and problems associated with making reliable observations on river organisms, the final chapters investigate how river biota are impacted by human activity, and how in turn they can be used as indicators of these effects in river management. Aimed at final-year undergraduate and postgraduate students, the book will also be of interest to all those concerned with river conservation, including environmental scientists, river engineers and river managers.

This book describes the underlying water conditions and geologies that support viable riparia, illustrates the ecological characteristics of riparia, and discusses how riparia are used by human cultures as well as how riparia can be used to sustain environmental quality. In recent years riparian management has been widely implemented as a means of improving fisheries, water quality, and habitat for endangered species. This book provides the basic knowledge necessary to implement successful, long-term management and rehabilitation programs.
* Treats riparian patterns & processes in a holistic perspective, from ecological components to societal activities
* Contains over 130 illustrations and photos that summarize this complex ecological system
* Synthesizes the information from more than 6,000 professional articles
* Sidebars provide a look into ongoing research that is at the frontiers of riparian ecology and management

This study explores how the emissions of acidifying gases in the atmosphere have caused the acidification of large freshwater areas in Europe and North America, and induced major changes in the structure and function of aquatic ecosystems. It focuses on the causes and consequences of this acidification, the links between terrestrial and aquatic effects, the prospects for reversing the damage and the prognosis for the future.

Lake Issyk-Kul is a closed lake located in the Tien Shan mountain belt of the Republic of Kyrgyzstan. It is the world's fifth deepest lake (668 m) and the second largest high altitude lake in the world (1607 m above sea level). The lake is affected by several environmental threats of both anthropogenic and natural origin: decline of the lake level resulting in progressively increasing salinity, incomplete vertical water exchange, and risk of contamination by past and present industrial activity.
Although the lake has been intensively studied, the information is only available in unpublished reports or local scientific journals. This book presents for the first time to an international audience the main physical, chemical, biological and geological characteristics of the lake, the fruits of many years of observations, complemented by recent results of international projects. Case studies of similar problems in other parts of the world are presented, together with ethical aspects of the environmental protection of the lake.

Freshwater Ecology, Third Edition, covers everything from the basic chemical and physical properties of water, to the advanced and unifying concepts of community ecology and ecosystem relationships found in continental waters. Giving students a solid foundation for both courses and future fieldwork, and updated to include key issues, including how to balance ecological and human health needs, GMOs, molecular tools, fracking, and a host of other environmental issues, this book is an ideal resource for both students and practitioners in ecology and related fields.

Lakes and rivers of the tropics are rich with variety and human relevance, yet do not figure prominently in surveys of general freshwater biology and limnology. The fruits of their scientific exploration are largely embodied in regional and specialist descriptions and analyses. In this book the authors take a generalized view, on a world-wide scale, that is dynamic and quantitative in outlook. They set out to integrate events and processes under tropical conditions, not only geographically but also within a continuum of physics, chemistry and biology, so providing a foundation that will be of value to all who study and work with tropical inland waters.