FROM THE BOTTOM OF THE POND

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From The Bottom Of The Pond

Author : Simon Small
ISBN : 9781780992075
Genre : Religion
File Size : 28.91 MB
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This is a book about knowing God. It is for those for whom just believing (or not believing) is no longer enough. Through personal experience, anecdote and story, a priest shares an ancient, but neglected aspect of Christian prayer. Contemplation takes us into the depths of the present moment, the only reality there has ever been and so the only place where God can be found. It takes us at different times into mystical oneness with the All, into profound self-knowledge and reveals love in the midst of the world.
Category: Religion

Bottom Soils Sediment And Pond Aquaculture

Author : Claude E. Boyd
ISBN : 9781461517856
Genre : Science
File Size : 33.83 MB
Format : PDF
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Aquaculture pond managers measure water-quality variables and attempt to maintain them within optimal ranges for shrimp and fish, but surprisingly little attention is paid to pond soil condition. Soil-water interactions can strongly impact water quality, and soil factors should be considered in aquaculture pond management. The importance of soils in pond management will be illustrated with an example from pond fertilization and another from aeration. Pond fertilization may not produce phytoplankton blooms in acidic ponds. Total alkalinity is too low to provide adequate carbon dioxide for photosynthesis, and acidic soils adsorb phosphate added in fertilizer before phytoplankton can use it. Agricultural lime stone application can raise total alkalinity and neutralize soil acidity. The amount of limestone necessary to cause these changes in a pond depends on the base unsaturation and exchange acidity of the bottom soil. Two ponds with the same total alkalinity and soil pH may require vastly different quantities of limestone because they differ in exchange acidity. Aeration enhances dissolved oxygen concentrations in pond water and permits greater feed inputs to enhance fish or shrimp production. As feeding rates are raised, organic matter accumulates in pond soils. In ponds with very high feeding rates, aeration may supply enough dissolved oxygen in the water column for fish or shrimp, but it may be impossible to maintain aerobic conditions in the surface layers of pond soil. Toxic metabolites produced by microorganisms in anaerobic soils may enter the pond water and harm fish or shrimp.
Category: Science

Hydrology And Water Supply For Pond Aquaculture

Author : Kyung H. Yoo
ISBN : 0442002688
Genre : Science
File Size : 81.31 MB
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In 1979, several graduate students in the Department of Fisheries and Allied Aquacultures at Auburn University met with one of the authors (CEB) and asked him to teach a new course on water supply for aqua culture. They felt that information on climatology, hydrology, water distribution systems, pumps, and wells would be valuable to them. Most of these students were planning to work in commercial aquaculture in the United States or abroad, and they thought that such a cdurse would better prepare them to plan aquaculture projects and to communicate with engineers, contractors, and other specialists who often become involved in the planning and construction phases of aquaculture en deavors. The course was developed, and after a few years it was decided that more effective presentation of some of the material could be made by an engineer. The other author (KHY) accepted the challenge, and three courses on the water supply aspects of aquaculture are now offered at Auburn University. A course providing background in hydrology is followed by courses on selected topics from water supply engineering. Most graduate programs in aquaculture at other universities will even tually include similar coursework, because students need a formal intro duction to this important, yet somewhat neglected, part of aquaculture. We have written this book to serve as a text for a course in water supply for aquaculture or for individual study. The book is divided into is concerned two parts.
Category: Science

Pond Aquaculture Water Quality Management

Author : Claude E. Boyd
ISBN : 0412071819
Genre : Nature
File Size : 90.21 MB
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The only hope of supplying the world's ever-increasing demand for aquatic food products is through aquaculture, and the vast majority of this is conducted in ponds. Although pond aquaculture may appear at first to be an archaic method of growing aquatic animals, it is one that is consistently profitable when the pond is managed properly. The most important aspect of pond management is the maintenance of adequate environmental conditions for good growth and health of the animal under culture. Water quality in ponds also extends into the areas of environmental protection and food quality and safety, which are increasingly important in today's world. This book provides the most complete, up-to-date account of water quality and its management in aquaculture ponds. It provides background information on the physical, chemical, and biological environment of pond aquaculture, and illustrates how the proper balance of these factors is the essential ingredient for successful production of fish and other aquatic animals. Management techniques for the control of water quality and productivity include liming, fertilization, mechanical aeration, water exchange, and the use of algicides and herbicides. The authors examine the effects of pollution on aquaculture and the validity of current criticisms by environmentalists. This book will be of great benefit to students, extension agents, policy-makers, government officials and the commercial aquaculture industry.
Category: Nature

Dynamics Of Pond Aquaculture

Author : Hillary S. Egna
ISBN : 1566702747
Genre : Science
File Size : 58.31 MB
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The culmination of over a decade's worth of research by the Pond Dynamics/Aquaculture Collaborative Research Support Program (CRSP), Dynamics of Pond Aquaculture not only explains the physical, chemical, and biological processes that interact in pond culture systems, but also presents real-world research findings and considers the people who depend on these systems. This book uses data from CRSP field research sites in East Africa, Southeast Asia, Central America, and North America to present a complete picture of the pond system and the environment in which it exists. A thorough study of the principles and practices of aquaculture, the book reflects the state of the art in pond aquaculture and incorporates recent advances that have changed the science in the last decade or so. It provides a thorough review of the many methods, techniques, and ideas that comprise this complex and fascinating area of study.
Category: Science

To Catch A Black Hole From The Bottom Of The Pond

Author : Michael R. Smith
ISBN : 1976395739
Genre : Astronomical instruments
File Size : 24.29 MB
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The author examines the design and construction of LIGO (Laser Interferometer Gravity Wave Observatory) detectors at two sites that led to the detection of gravity waves emitted from the merger of two black holes, each one approximately 30 times more massive than our own sun.
Category: Astronomical instruments

The Pond Lovers

Author : Gene Logsdon
ISBN : 0820329541
Genre : Nature
File Size : 35.26 MB
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To his legions of readers, Gene Logsdon is best known as the Contrary Farmer. This is Logsdon's ode to the watery microcosms all around, from the half-acre farm pond to the suburban garden pool. Readers looking for hands-on experience will find plenty of pond-keeping do's and don'ts.
Category: Nature

Biological Treatment Processes

Author : Lawrence K. Wang
ISBN : 1603271562
Genre : Technology & Engineering
File Size : 75.30 MB
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Pollution and its effects on the environment have emerged as critical areas of research within the past 30 years. The Handbook of Environmental Engineering is a collection of methodologies that study the effects of pollution and waste in their three basic forms: gas, solid, and liquid. In Volume 8, Biological Treatment Processes, tried-and-true solutions comprise a “methodology of pollution control”. The distinguished panel of authors contributes detailed chapters, which include topics ranging from treatment by land application, activated sludge processes, and submerged aeration to trickling filters, lagoons, rotating biological contactors, sequencing batch reactors, digestions, and composting. Volume 8 and its sister book - Volume 9: Advanced Biological Treatment Processes – are designed as both basic biological waste treatment textbooks and reference books for advanced undergraduate and graduate students – as well as for designers of waste treatment systems, scientists, and researchers. An indispensable addition to the Humana Press series, Volume 8: Biological Treatment Processes provides an illuminating look at water pollution control and the fascinating evolution of bio-environmental engineering.
Category: Technology & Engineering

Life In A Pond Enhanced Ebook

Author : Ilene L. Follman
ISBN : 9781429115896
Genre :
File Size : 49.55 MB
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The information contained in this resource and activity book enhances children's knowledge and awareness of the living and non-living components of a pond, including the variety of life forms that can be found living on, under, and around the surface of a pond. Through observation and investigation, children will discover similarities, differences, and interactions among living things that inhabit a pond. Activities that emphasize plant and animal adaptations, interdependence, and food chains enable students to learn more about how living things survive in a still, freshwater ecosystem. Four transparencies (print books) or PowerPoint slides (eBooks) are included to engage students in discussion and reinforce the concepts presented in the book.
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