0
Your cart

Your cart is empty

Browse All Departments
Price
  • R50 - R100 (1)
  • R100 - R250 (87)
  • R250 - R500 (377)
  • R500+ (4,907)
  • -
Status
Format
Author / Contributor
Publisher

Books > Earth & environment > Earth sciences > The hydrosphere

Electronics - Fundamentals for the Water and Wastewater Maintenance Operator (Paperback): Frank R Spellman, Joanne Drinan Electronics - Fundamentals for the Water and Wastewater Maintenance Operator (Paperback)
Frank R Spellman, Joanne Drinan
R2,005 Discovery Miles 20 050 Ships in 12 - 17 working days

This is the only book series devoted to explaining the full range of specialized areas required of water and wastewater plant operators. Each volume is designed to give operators the basic knowledge of a subject needed for certification, licensure, and improved job performance. Checkpoints, self-tests and a final examination with questions based on actual operator certification exams provide a practical review. All books are clearly illustrated with key ideas and highlighted points throughout. Electronics explains the fundamental structure and operation of the electronic hardware that underlies many automated processes in a treatment plant. It provides an introduction to electrical circuits, diodes, transistors, and transformers, which are explained in the context of device control.

Watershed Health Monitoring - Emerging Technologies (Paperback): Chris Jones, R. Mark Palmer, Susan Motkaluk, Michael Walters Watershed Health Monitoring - Emerging Technologies (Paperback)
Chris Jones, R. Mark Palmer, Susan Motkaluk, Michael Walters
R2,008 Discovery Miles 20 080 Ships in 12 - 17 working days

Watershed Health Monitoring: Emerging Technologies is a concise reference that defines the concept of watershed health and explains that monitoring the health of watersheds is a critical precursor to adaptive resource management on a watershed basis. The focus of the text is a clear description of an innovative "Closed Loop" model that specifies four key aspects of successful monitoring programs: political linkages and support, sound scientific assessment techniques, a community education and awareness component; and a sustainable cost-recovery framework achieved through partnership. Divided into two sections, the book begins with an introduction that defines watershed health, explains how monitoring fits into watershed planning and management, describes frequent shortfalls of monitoring programs around the world (with an emphasis on North America) and proposes a "Closed Loop" approach that will help ensure successful programs. Subsequent chapters detail each component of the "Closed Loop" model with special emphasis on scientific assessment. The second part features a set of six case studies that describe successful real-world applications of the "Closed Loop" approach to watershed monitoring. Written in an easily understood manner with the practitioner in mind, Watershed Health Monitoring balances the need for a detailed yet concise treatment of the topic of watershed health monitoring. It is the first book to recognize the multidisciplinary nature of successful monitoring programs-programs that go far beyond science.

Multilayered Aquifier Systems - Fundamentals and Applications (Paperback): Alexander H.-D. Cheng Multilayered Aquifier Systems - Fundamentals and Applications (Paperback)
Alexander H.-D. Cheng
R2,030 Discovery Miles 20 300 Ships in 12 - 17 working days

Offers a systematic and unified approach to the classical theories and recent techniques of multilayered aquifer systems. Clarifies governing principles and facilitates industrial problem solving. Uses the automated numerical Laplace inversion procedure to simplify mathematical materials.

Industrial Applications of Nanoparticles - A Prospective Overview (Hardcover): Marta Irene Litter, Arslan Ahmad Industrial Applications of Nanoparticles - A Prospective Overview (Hardcover)
Marta Irene Litter, Arslan Ahmad
R4,387 Discovery Miles 43 870 Ships in 12 - 17 working days

Nanotechnology is one of the most rapidly developing areas of science, with great potential to solve the developmental challenges in a wide range of industries such as aerospace, agriculture, bioengineering, cosmetics, chemicals, electronics, energy, renewables, surface coatings, textiles, medicine, materials manufacturing, military equipment, etc. To compile this book, distinguished scientists, engineers, and industrial professionals from different parts of the world have been invited. An array of 17 high-quality science-based chapters covering recent advancements, challenges, and future trends in industrial applications of nanotechnology is presented. The book is aimed at industrial professionals and graduate-level students and researchers.

Biogeology - Evolution in a Changing Landscape (Hardcover): Bernard Michaux Biogeology - Evolution in a Changing Landscape (Hardcover)
Bernard Michaux
R9,676 Discovery Miles 96 760 Ships in 12 - 17 working days

This detailed exposition gives background and context to how modern biogeography has got to where it is now. For biogeographers and other researchers interested in biodiversity and the evolution of life on islands, Biogeology: Evolution in a Changing Landscape provides an overview of a large swathe of the globe encompassing Wallacea and the western Pacific. The book contains the full text of the original article explored in each chapter, presented as it appeared on publication. Key features: Holistic treatment, collecting together a series of important biogeographical papers into a single volume Authored by an expert who has spent nearly three decades actively involved in biogeography Describes and interprets a region of exceptional biodiversity and extreme endemism The only book to provide an integrated treatment of Wallacea, Melanesia, New Zealand, the New Zealand Subantarctic Islands and Antarctica Offers a critique of fashionable neo-dispersalist arguments, showing how these still suffer from the same weaknesses of the original Darwinian formulation. The chapters also include analysis of many major theoretical and philosophical issues of modern biogeographic theory, so that those interested in a more philosophical approach will find the book stimulating and thought-provoking.

Flotsametrics and the Floating World - How One Man's Obsession with Runaway Sneakers and Rubber Ducks Revolutionized Ocean... Flotsametrics and the Floating World - How One Man's Obsession with Runaway Sneakers and Rubber Ducks Revolutionized Ocean Science (Paperback)
Curtis Ebbesmeyer, Eric Scigliano
R463 R399 Discovery Miles 3 990 Save R64 (14%) Ships in 10 - 15 working days

Curtis Ebbesmeyer is no ordinary scientist. He's been a consulting oceanographer for multinational firms and a lead scientist on international research expeditions, but he's never held a conventional academic appointment. He seized the world's imagination as no ordinary scientist could when he and his worldwide network of beachcomber volunteers traced the ocean's currents using thousands of sneakers and plastic bath toys spilled from storm-tossed freighters. Now, for the first time, Ebbesmeyer tells the story of his lifelong struggle to solve the sea's mysteries, and shares his most surprising discoveries. He recounts how flotsam has changed the course of history-leading Viking mariners to safe harbours, Columbus to the New World, and Japan to open up to the West - and how it may even have made the origin of life possible. He explores the vast floating garbage patches and waste-heaped junk beaches that collect the flotsam and jetsam of industrial society. Finally, he reveals the music-like mathematical order in oceanic gyres and the threats that global warming and disintegrating plastic waste pose to the seas ...and to us.

Numerical Models in Groundwater Pollution (Hardcover, 2000 ed.): Karel Kovarik Numerical Models in Groundwater Pollution (Hardcover, 2000 ed.)
Karel Kovarik
R2,939 Discovery Miles 29 390 Ships in 10 - 15 working days

Mathematical models are the effective tool to solve different tasks predicting pollutant movement. The finite difference method is the oldest, but still remains widely used in hydrogeological practice. However, this method is not very useful to construct the new transport models because it cannot approximate the shape of remediation elements exactly. Therefore the book is concerned with the FEM (Finite Element Method) and BEM (Boundary Element Method), and also with the comparison of advantages of these methods in groundwater hydrology. The combination of the BEM and the random-walk particle tracking method, which seems to be a very useful tool to model the spread of pollution in groundwater, are also presented. The computer programmes have been developed on the basis of the theoretical backgrounds of these methods. They use the Visual C++ programming language for Windows 95/NT platform and will be included in the book.

Veins of the Desert - A Review on Qanat / Falaj / Karez (Hardcover): Ali Asghar Semsar Yazdi, Majid Labbaf Khaneiki Veins of the Desert - A Review on Qanat / Falaj / Karez (Hardcover)
Ali Asghar Semsar Yazdi, Majid Labbaf Khaneiki
R2,659 Discovery Miles 26 590 Ships in 12 - 17 working days

Qanat is a gently sloping subterranean canal, which taps a water-bearing zone at a higher elevation than cultivated lands. A qanat consist of a series of vertical shafts in sloping ground, interconnected at the bottom by a tunnel with a gradient flatter than that of the ground. From the air, this system looks like a line of anthills leading from the foothills across the desert to the greenery of an irrigated settlement. Qanat engages a variety of knowledge and its studying entails an interdisciplinary approach. In a traditional realm, qanats are embraced by a socio-economic system which guarantees their sustainability. The facets of this socio-economic system operate closely together and make it possible for the qanats to remain into future. Veins of the Desert shows that digging a qanat requires a variety of sciences and technologies, though at a glance qanat is just a horizontal tunnel which drains out groundwater. Qanat is a feat of technology left from our ancestors; hidden underground, but its technical importance is apparent, not less valuable than such surface structures as bridges, castles, towers, etc. Qanat enjoys extended structures and sometimes its length reaches tens of kilometers. It passes through geological formations and faces different conditions and obstacles, so the qanat masters' efforts to solve these problems led to the accumulation of knowledge in terms of qanat construction over time, which has been handed down from generation to generation. Qanat is one of the most complicated traditional technologies, which require knowledge on nature ranging from groundwater to management. This indigenous technology used to bring water efficiently from tens of kilometers away to the thirsty lands. This book also gives insight into cultural and social heritages, which have crystalized around this technique. This cultural heritage still influences social life of the people living in such regions as central plateau of Iran where qanat has been the only means of supplying water. This technology is the focal point of the genesis of a particular civilization in the arid and semi-arid regions of Iran. The harsh environment drove those people to invent the technology of qanat and the know-how revolving around it. Qanat carries a tradition of science and technology which used to be practiced in order to overcome the technical obstacles in qanat construction. Thus, qanat is not only an irrigational means, but it should be seen as a technical and cultural legacy which deserves more attention. This book is a small encyclopedia on qanat system, providing the readers with easy answers to their questions about different aspects of this ancient technology.

Land Use Effects on Streamflow and Water Quality in the Northeastern United States (Paperback): Avril L De La Cretaz, Paul K... Land Use Effects on Streamflow and Water Quality in the Northeastern United States (Paperback)
Avril L De La Cretaz, Paul K Barten
R1,933 Discovery Miles 19 330 Ships in 12 - 17 working days

Filling a long-standing need for a desk reference that synthesizes current research, Land Use Effects on Streamflow and Water Quality in the Northeastern United States reviews and discusses the impact of forest management, agriculture, and urbanization. The book provides a gateway to the diverse scientific literature that is urgently needed to understand and solve ubiquitous watershed management problems. The authors use an in-depth approach that focuses on the science behind sound management principles and practices. The book begins with a summary of the scientific principles and processes that define and govern the interactions between activities on land and conditions in streams, lakes, and estuaries. Building on these principles, later chapters progress from basic science to small-scale, controlled field experiments to landscape-scale studies and their watershed management implications. This nested format parallels the development of watershed management projects and solutions. The deliberate integration of land use history, ecology, hydrology, chemistry, and resource management avoids the artificial separation of inter-related watershed characteristics and tracks causes and effects over realistic time scales. The authors present the hydrologic and water quality principles on which to construct management plans for water supply watersheds across a wide range of sizes, configurations, and time scales. Rigorously reviewed by a distinguished panel of scientists and watershed managers, the book benefits from their collective experience across the full range of watershed science and management. It provides a diverse audience with the opportunity to update and expand their knowledge in critical areas of watershed science and management.

Climate Hazard Crises in Asian Societies and Environments (Paperback): Troy Sternberg Climate Hazard Crises in Asian Societies and Environments (Paperback)
Troy Sternberg
R948 Discovery Miles 9 480 Ships in 12 - 17 working days

Climate hazards are the world's most widespread, deadliest and costliest natural disasters. Knowledge of climate hazard dynamics is critical since the impacts of climate change, population growth, development projects and migration affect both the impact and severity of disasters. Current global events highlight how hazards can lead to significant financial losses, increased mortality rates and political instability. This book examines climate hazard crises in contemporary Asia, identifying how hazards from the Middle East through South and Central Asia and China have the power to reshape our globalised world. In an era of changing climates, knowledge of hazard dynamics is essential to mitigating disasters and strengthening livelihoods and societies across Asia. By integrating human exposure to climate factors and disaster episodes, the book explores the environmental forces that drive disasters and their social implications. Focusing on a range of Asian countries, landscapes and themes, the chapters address several scales (province, national, regional), different hazards (drought, flood, temperature, storms, dust), environments (desert, temperate, mountain, coastal) and issues (vulnerability, development, management, politics) to present a diverse, comprehensive evaluation of climate hazards in Asia. This book offers an understanding of the challenges climate hazards present, their critical nature and the effort needed to mitigate climate hazards in 21st-century Asia. Climate Hazard Crises in Asian Societies and Environments is vital reading for those interested and engaged in Asia's development and well-being today and will be of interest to those working in Geography, Development Studies, Environmental Sciences, Sociology and Political Science.

Hydrosocial Territories and Water Equity - Theory, Governance, and Sites of Struggle (Paperback): Rutgerd Boelens, Ben Crow,... Hydrosocial Territories and Water Equity - Theory, Governance, and Sites of Struggle (Paperback)
Rutgerd Boelens, Ben Crow, Jaime Hoogesteger, Erik Swyngedouw, Jeroen Vos, …
R1,354 Discovery Miles 13 540 Ships in 12 - 17 working days

Bringing together a multidisciplinary set of scholars and diverse case studies from across the globe, this book explores the management, governance, and understandings around water, a key element in the assemblage of hydrosocial territories. Hydrosocial territories are spatial configurations of people, institutions, water flows, hydraulic technology and the biophysical environment that revolve around the control of water. Territorial politics finds expression in encounters of diverse actors with divergent spatial and political-geographical interests; as a result, water (in)justice and (in)equity are embedded in these socio-ecological contexts. The territory-building projections and strategies compete, superimpose and align to strengthen specific water-control claims of various interests. As a result, actors continuously recompose the territory's hydraulic grid, cultural reference frames, and political-economic relationships. Using a political ecology focus, the different contributions to this book explore territorial struggles, demonstrating that these contestations are not merely skirmishes over natural resources, but battles over meaning, norms, knowledge, identity, authority and discourses. The articles in this book were originally published in the journal Water International.

Environmental Processes and Management - Tools and Practices for Groundwater (Hardcover, 1st ed. 2023): Prabhakar Shukla,... Environmental Processes and Management - Tools and Practices for Groundwater (Hardcover, 1st ed. 2023)
Prabhakar Shukla, Prachi Singh, Raj Mohan Singh
R4,484 Discovery Miles 44 840 Ships in 12 - 17 working days

This book is Volume 2 which is published to complement "Environmental Processes and Management: Tools and Practices" (https://link.springer.com/book/10.1007/978-3-030-38152-3), 2020 This book provides an in-depth, well-researched and science-based approach to applying key project management and spatial tools and practices in environmental projects. This book is an important read for leaders considering projects that balance social-economic growth against minimizing its ill effects on Planet Earth. This book brings together several aspects of groundwater engineering, as well as the formula and analytical approaches required for more informed decision-making. It also highlights the vital importance of understanding the technological, economic and social dimensions of environmental studies explained through dynamic approaches and illustrative figures that have short-term results and long-term impacts. This book emphasizes on encouraging the modern and vibrant research works conducted by young researchers across the world. This book clearly details the general application of fundamental groundwater processes, the character of the different types of systems in which they occur and the way in which these factors influence process dynamics, environmental systems and their possible remedies. The book sets a possible recommendation for the professionalism with which environmental research should be planned, executed, monitored, assessed and delivered. While primarily intended for professionals responsible for the management of groundwater projects or interested in improving the overall efficiency of such projects, it is also useful for managers in the private, public and not-for-profit sectors. The book is a valuable resource for students at both undergraduate and postgraduate levels. In addition, this book serves as an indispensable guide for anyone willing to develop their skills in modern groundwater / environmental management and related techniques

Applied Flow and Solute Transport Modeling in Aquifers - Fundamental Principles and Analytical and Numerical Methods... Applied Flow and Solute Transport Modeling in Aquifers - Fundamental Principles and Analytical and Numerical Methods (Paperback)
Vedat Batu
R2,071 Discovery Miles 20 710 Ships in 12 - 17 working days

The author simplifies the necessary theoretical background as much as possible and provides all derivational details of the theoretical background as worked examples. He uses this method to explore how the derivations were generated for those who need to know while allowing others to easily skip them and still benefit and learn from the practical applications of the mathematical approaches. Containing 51 tables and 323 figures, the book covers both the breadth and the depth of currently applied aquifer flow and contaminant transport modeling solutions.

Directions in Geography (Hardcover): Richard J. Chorley Directions in Geography (Hardcover)
Richard J. Chorley
R3,332 Discovery Miles 33 320 Ships in 12 - 17 working days

Originally published in 1973. This collection of essays looks at the 'quantitative revolution' and the 'new geography' by some of the geographers who had a significant part in those innovations and looks ahead to further developments. The views in the chapters are diverse and offer a fascinating glimpse of the discipline of geography as the subject was undergoing such change and becoming more socially committed. They cover theory, spatial-systems theory, forecasting, human ecology and climatology alongside the teaching of the subject. The concerns of the contemporary geographer come across and are of interest today as these areas have developed still more.

Introduction to Fluvial Processes (Hardcover): Richard J. Chorley Introduction to Fluvial Processes (Hardcover)
Richard J. Chorley
R3,195 Discovery Miles 31 950 Ships in 12 - 17 working days

Originally published in this form in 1971, the content of this book was originally part of a larger composite volume 'Water, Earth and Man' (1969) which provided a synthesis of hydrology, geomorphology and socio-economic geography. This volume brings together the systematic theme of geomorphology while maintaining a link with the original book which emphasised the benefit of the study of water being considered in the widest sense within the physical and social environments.

Introduction to Physical Hydrology (Hardcover): Richard J. Chorley Introduction to Physical Hydrology (Hardcover)
Richard J. Chorley
R3,341 Discovery Miles 33 410 Ships in 12 - 17 working days

Originally published in this form in 1971, the content of this book was originally part of a larger composite volume 'Water, Earth and Man' (1969) which provided a synthesis of hydrology, geomorphology and socio-economic geography. This volume brings together the systematic theme of physical hydrology while maintaining a link with the original book which emphasised the benefit of the study of water being considered in the widest sense within the physical and social environments.

Baroclinic Tides - Theoretical Modeling and Observational Evidence (Hardcover, New): Vasiliy Vlasenko, Nataliya Stashchuk,... Baroclinic Tides - Theoretical Modeling and Observational Evidence (Hardcover, New)
Vasiliy Vlasenko, Nataliya Stashchuk, Kolumban Hutter
R3,592 Discovery Miles 35 920 Ships in 12 - 17 working days

This book was first published in 2005. When an oceanic tidal wave that is primarily active on the water surface passes an ocean shelf or a region with a seamount, it is split into a less energetic surface wave and other internal modes with different wavelengths and propagation speeds. This cascading process, from the barotropic tides to the baroclinic components, leads to the transformation of tidal energy into turbulence and heat, an important process for the dynamics of the lower ocean. Baroclinic Tides demonstrates the analytical and numerical methods used to study the generation and evolution of baroclinic tides and, by comparison with experiments and observational data, shows how to distinguish and interpret internal waves. Strongly non-linear solitary internal waves, which are generated by internal tidal waves at the final stage of their evolution, are investigated in detail. This book is intended for researchers and graduate students of physical oceanography, geophysical fluid dynamics and hydroacoustics.

Nano-biotechnology for Waste Water Treatment - Theory and Practices (Hardcover, 1st ed. 2022): Jai Prakash Narain Rai, Shweta... Nano-biotechnology for Waste Water Treatment - Theory and Practices (Hardcover, 1st ed. 2022)
Jai Prakash Narain Rai, Shweta Saraswat
R3,482 Discovery Miles 34 820 Ships in 12 - 17 working days

This book embodies the potentials of nanobiotechnology-based water treatment techniques to provide a solid understanding of the subjects. Starting with a refresher of the basic conventional technologies which are now been integrated with nanomaterials for an efficient, viable, and eco-friendly treatment of contaminated water. The book covers various physical, chemical, and hybrid methods of nanobiomaterial synthesis and their fabrication for characterizing existing techniques. The book gives special attention to those nanotechnology-based approaches that promise easier, faster, and cheaper processes in contaminants monitoring and their treatment. Several case studies explain in an easy to understand format how employing nanobiomaterials as an indicator and analytical tool will enable students to learn about cleaning up the environment.

Echinoderm Research and Diversity in Latin America (Hardcover, 2012): Juan Jose Alvarado, Francisco Alonso Solis-Marin Echinoderm Research and Diversity in Latin America (Hardcover, 2012)
Juan Jose Alvarado, Francisco Alonso Solis-Marin
R4,529 Discovery Miles 45 290 Ships in 12 - 17 working days

This book compiles for the first time the development of echinoderm research in Latin America. The book contains 17 chapters, one introductory, 15 country chapters, and a final biogeographic analysis. It compiles all the investigations published in international and local journals, reports, theses and other gray literature. Each chapter is composed of 7 sections: introduction describes the marine environments, and main oceanographic characteristics, followed by a history of research account divided by specific subjects. The next section addresses patterns of distribution and diversity. A specific section would explain fishery or aquaculture activities. The next sections deal with environmental and anthropogenic threats that are affecting echinoderm, and any conservation or management action. Finally, a section with conclusions, needs and new lines of research. The book will include two appendixes with species lists of all echinoderms with bathimetric data, habitat and distribution.

Wind Climate in Cities (Hardcover, 1995 ed.): Jack E. Cermak, Alan G. Davenport, Erich J Plate, Domingos X. Viegas Wind Climate in Cities (Hardcover, 1995 ed.)
Jack E. Cermak, Alan G. Davenport, Erich J Plate, Domingos X. Viegas
R14,509 Discovery Miles 145 090 Ships in 10 - 15 working days

If one surveys the development of wind engineering, one comes to the conclusion that the challenge of urban climatology is one of the most important remaining tasks for the wind engineers. But what distinguishes wind engineering in urban areas from conventional wind engineering? Principally, the fact that the effects studied are usually unique to a particular situation, requiring consideration of the surroundings of the buildings. In the past, modelling criteria have been developed that make it possible to solve environmental problems with great confidence, and studies validated the models: at least in a neutrally stratified atmosphere. The approach adopted in the book is that of applied fluid mechanics, since this forms the basis for the evaluation of the urban wind field. Variables for air quality or loads are problem specific, or even random, and methods for studying them are based on risk analysis, which is also presented. Criteria are developed for a systematic approach to urban wind engineering problems, including parameter studies. The five sections of the book are: Fundamentals of urban boundary layer and dispersion; Forces on complex structures in built-up areas; Air pollution in cities; Numerical solution techniques; and Posters. A subject index is included.

The Lakes Handbook - Limnology and Limnetic Ecology  V 1 (Hardcover, Volume 1): P. E. 'O'Sullivan The Lakes Handbook - Limnology and Limnetic Ecology V 1 (Hardcover, Volume 1)
P. E. 'O'Sullivan
R8,136 Discovery Miles 81 360 Ships in 12 - 17 working days

Continuing concern about water supply and quality, ecosystem sustainability and restoration demands that the modern approach to the management of lakes and reservoirs should be based on a sound understanding of the application of the scientific and ecological principles that underlie freshwater processes.

"The Lakes Handbook" provides an up-to-date overview of the application of ecologically sound approaches, methods and tools using experience gained around the world for an understanding of lakes and their management. Volume one of the Handbook addresses the physical and biological aspects of lakes pertinent to lake management, emphasising those aspects particularly relevant to large, still bodies of water. Volume two then considers lake management, with particular emphasis on sustainability, restoration and rehabilitation.

This handbook will be invaluable to ecologists, environmental scientists, physical geographers and hydrologists involved in limnological research, as well as advanced undergraduate and graduate students looking for authoritative reviews of the key areas of limnological study.
Brings together basic science and management issues.
International coverage and international authors.
Reviews management issues at a level suitable for the non-expert.

Mexican Aquatic Environments - A General View from Hydrobiology to Fisheries (Hardcover, 1st ed. 2019): Ana Laura Ibanez Mexican Aquatic Environments - A General View from Hydrobiology to Fisheries (Hardcover, 1st ed. 2019)
Ana Laura Ibanez
R2,962 Discovery Miles 29 620 Ships in 10 - 15 working days

Pursuing a multidisciplinary approach, this book highlights current challenges in, and potential solutions to, environmental water management in Mexico. It includes an essential review of current literature and state of the art research, providing a one-stop resource for researchers, graduate students and environmental water managers alike. The result of a cooperation between 35 researchers from seven Mexican academic institutions, two Federal Commissions and one international organization, the book links science to practice for living organisms and their environment, while also addressing anthropogenic effects on our water ecosystems. Particularly the book addresses the following subjects: Biodiversity in inland waters, physical and chemical characterization of inland waters, physico-chemical characterization of Mexican coastal lagoons, microbiota in brackish ecosystems, diversity associated with southern Mexico's pacific coral reefs, fry fish stockings in aquatic epicontinental systems, a review of tuna fisheries in Mexico, fishery resource management challenges stemming from climate change, aquatic invasive alien species, harmful algal blooms, and aquatic protected areas, related ecological and social problems and the importance for fisheries' yield.

Reproduction and Development in Annelida - Series on: Reproduction and Development in Aquatic Invertebrates (Hardcover): T. J... Reproduction and Development in Annelida - Series on: Reproduction and Development in Aquatic Invertebrates (Hardcover)
T. J Pandian
R4,956 Discovery Miles 49 560 Ships in 12 - 17 working days

This book is a concise informative elucidation of all aspects of reproduction and development in annelids covering from arenicola to tubifex. Annelids flourish between 4,900 m depth to 2,000 m altitude; some of them occur in unusual habitats like hydrothermal vents and subterranean aquatic system (stigobionts). A few have no gut and acquire adequate nutrients through osmotrophism and/or engaging symbiotic microbes. In the absence of exoskeleton to escape predation, the 17,000 speciose annelids have explored bewildering modes of reproduction; not surprisingly, 42-47% of them are brooders. With 13,000 species, polychaetes are gonochores but some 207 species of them are hermaphrodites. Clitellates are all hermaphrodites; of them, 76 species are parthenogens, of which 56 are earthworms. Regenerative potency of annelids ranges from an organ to an entire worm from a single 'seminal' segment. The head, tail and both together can be regenerated 21, 42 and 20 times, respectively. However, the potency is limited to ~1% of polychaetes and < 2% of oligochaetes. In oligochaetes, the chloragogue temporally separates regeneration and reproduction but sedentary polychaetes undertake them together at the reduced reproductive output. Only 79 polychaete and 111 oligochaete species have the potency for clonal reproduction. Within families, the potency ranges from 2% in spionids to 54% in naidids. Epitoky, a spectacular and unique phenomenon, involves the transformation from benthic to meroplanktonic reproductive morphism. It occurs in 106 errant polychaete species. The larger glycerides, nereidids and eunicids use muscular energy to climb < 50 m vertical distance. But the small phyllodocids and cteniodrilids may reduce buoyancy to climb 1,000-4,000 m vertical distance. Heterogamatic sex determination is reported to occur only in six polychaete species, although karyotype is known for 83 annelid species. In temperate polychaetes, a dozen neuroendocrines, arising mostly from the 'brain' regulates reproductive cycle. A complete chapter devoted to vermiculture, (i) recognizes the fast-growing candidate species, (ii) distinguishes 'layers' from 'brooders', (iii) indicates that the harvest of oligochaetes may reduce the input of nitrogenous fertilizer in the ricefield, and (iv) explores the scope for increasing wealth from waste.

Handbook of Bioremediation (1993) - Norris * Hinchee * Brown * Mccarty Semprini * Wilson * Kampbell Reinhard * Bouwer * Borden... Handbook of Bioremediation (1993) - Norris * Hinchee * Brown * Mccarty Semprini * Wilson * Kampbell Reinhard * Bouwer * Borden * Vogel Thomas * Ward (Paperback)
Robert D. Norris
R1,246 R1,066 Discovery Miles 10 660 Save R180 (14%) Ships in 12 - 17 working days

Written by leading soil and ground-water remediation scientists, Handbook of Bioremediation presents information regarding the processes, application, and limitations of using remediation technologies to restore contaminated soil and ground water. It covers field-tested technologies, site characterization requirements for each remediation technology, and the costs associated with their implementation. In addition to discussions and examples of developed technologies, the book provides insights into technologies ranging from theoretical concepts to limited field-scale investigations. In situ remediation systems, air sparging and bioventing, the use of electron acceptors other than oxygen, natural bioremediation, and the introduction of organisms into the subsurface are among the specific topics covered in this invaluable handbook.

Migration Processes in the Soil and Groundwater Zone (1991) (Paperback): Ludwig Luckner Migration Processes in the Soil and Groundwater Zone (1991) (Paperback)
Ludwig Luckner
R2,361 Discovery Miles 23 610 Ships in 12 - 17 working days

This comprehensive work integrates knowledge from physics, chemistry, biology, mathematics, geology, engineering, and several other fields. Its purpose is to provide solution methods, techniques of parameter estimation, and tools for solving the complex problems of mathematical modeling. The main topics presented include fundamentals of mathematical modeling of migration processes; analytical, numerical, and inverse solutions to migration problems; and techniques of parameter estimation and monitoring of migration processes. The book is perfect for anyone involved in the areas of hydrogeology, soil science, environmental engineering, subsurface cleanup, water sciences, agronomy, land development, and civil engineering. It provides professionals with a survey of the methodology of migration model building, the mathematical tools for solving these models, and the technique of parameter estimation in laboratories and in the field. Consultants will appreciate the book's multidisciplinary theoretical background and first approximations for a broad variety of migration data. Professors and students gain an integrated survey of subsurface solute and heat transport, storage, transformation, and exchange processes in both theoretical and practical applications, complete with example problems and solutions.

Free Delivery
Pinterest Twitter Facebook Google+
You may like...
Hitmen For Hire - Exposing South…
Mark Shaw Paperback  (2)
R295 R242 Discovery Miles 2 420
Bloed, Dunner as Water - Suid-Afrika se…
Charne Kemp Paperback R340 R292 Discovery Miles 2 920
Snyman's Criminal Law
Kallie Snyman, Shannon Vaughn Hoctor Paperback R1,245 Discovery Miles 12 450
Heart Of A Strong Woman - From Daveyton…
Xoliswa Nduneni-Ngema, Fred Khumalo Paperback R350 R301 Discovery Miles 3 010
Cattle Of The Ages - Stories And…
Cyril Ramaphosa Hardcover  (4)
R1,785 R1,616 Discovery Miles 16 160
Power And Loss In South African…
Glenda Daniels Paperback R380 R297 Discovery Miles 2 970
Albertina Sisulu
Sindiwe Magona, Elinor Sisulu Paperback R389 Discovery Miles 3 890
Know Them By Their Fruit - A Guide To…
A.T. Ankiewicz Paperback R352 Discovery Miles 3 520
The Year Of Facing Fire - A Memoir
Helena Kriel Paperback R315 R271 Discovery Miles 2 710
Herontdek Jou Selfvertroue - Sewe Stappe…
Rolene Strauss Paperback  (1)
R330 R284 Discovery Miles 2 840

 

Partners