Aquatic Life In Freshwater Ponds
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Aquatic Life In Freshwater Ponds
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Author : Brett A. Ingram
language : en
Publisher:
Release Date : 1997-01-01
Aquatic Life In Freshwater Ponds written by Brett A. Ingram and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-01-01 with Aquaculture categories.
Pond Aquaculture Water Quality Management
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Author : Claude E. Boyd
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Pond Aquaculture Water Quality Management written by Claude E. Boyd and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
The efficient and profitable production of fish, crustaceans, and other aquatic organisms in aquaculture depends on a suitable environment in which they can reproduce and grow. Because those organisms live in water, the major environ mental concern within the culture system is water quality. Water supplies for aquaculture systems may naturally be oflow quality or polluted by human activity, but in most instances, the primary reason for water quality impairment is the culture activity itself. Manures, fertilizers, and feeds applied to ponds to enhance production only can be partially converted to animal biomass. Thus, at moderate and high production levels, the inputs of nutrients and organic matter to culture units may exceed the assimilative capacity of the ecosystems. The result is deteriorating water quality which stresses the culture species, and stress leads to poor growth, greater incidence of disease, increased mortality, and low produc tion. Effluents from aquaculture systems can cause pollution of receiving waters, and pollution entering ponds in source water or chemicals added to ponds for management purposes can contaminate aquacultural products. Thus, water quality in aquaculture extends into the arenas of environmental protection and food quality and safety. A considerable body of literature on water quality management in aquaculture has been accumulated over the past 50 years. The first attempt to compile this information was a small book entitled Water Quality in Warmwater Fish Ponds (Boyd I 979a).
Field Book Of Ponds And Streams
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Author : Ann Haven Morgan
language : en
Publisher:
Release Date : 1930
Field Book Of Ponds And Streams written by Ann Haven Morgan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1930 with Freshwater biology categories.
Foreword: Minnows and frogs and brown water beetles, scurrying to cover as we approach the shore of a still clear pond, show us that the water has some very lively inhabitants. The swim and dive and paddle in the open until we come, and then they hide from us distrustfully. Theirs is another world than ours. In that world there are strange living creatures in endless variety. There are big and little, swift and slow, strong and weak, graceful and ungainly: all are born to feed and grow and reproduce, to hunt and be hunted, to strive for a livlihood; and in so doing to fill a place in the household of nature. No one who has lived by clear waters can have failed to see something of their wonderful life: minnows on the shoals; caddis worms dragging their cumbersome portable houses over the brook bed; the young of mayflies clinging to the stones in the riffle, or the adult mayflies in their dancing nuptial flight in the air above the stream; and what could be more interesting? To make the knowledge of the whole range of life in ponds and streams a little more easy of access is a major purpose of this book. And with that knowledge will come appreciation, and a purpose to aid in keeping the waters free from pollution. Clean waters are always charming; and nothing is more sordid and unwholesome than polluted water. Here is a public service of no small moment. It is all in the interest of a better human enviornment; better for health, for recreation, for instruction, and for aesthetic pleasures. A book like this cannot fail to render good service since it tells the simple truth about aquatic creatures in an interesting way, illustrates them with good figures, and so enables the reader to know what they are like and where to go to find them.--James G. Needham, Cornell University, March, 1930.
The Biology Of Lakes And Ponds
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Author : Christer Brönmark
language : en
Publisher: Oxford University Press, USA
Release Date : 1998
The Biology Of Lakes And Ponds written by Christer Brönmark and has been published by Oxford University Press, USA this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Nature categories.
Overview of evolution of freshwater organisms and biotic interactions. Includes discussion of microbial ecology and denthic communities.
Field Book Of Ponds And Streams
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Author : ANN HAVEN. MORGAN
language : en
Publisher:
Release Date : 2018
Field Book Of Ponds And Streams written by ANN HAVEN. MORGAN and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
The Ecology Of The Fish Pond Ecosystem
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Author : Guy Delincé
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
The Ecology Of The Fish Pond Ecosystem written by Guy Delincé and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-09 with Science categories.
An understanding of the ecology of a fish pond is essential for the achievement of steady and high fish production in ponds. For the ecologist, the fish pond is a small laboratory: easy to investigate and responding rapidly to manipulation. For the aquaculturist, the ecology shows the ways and means of interventions ensuring an increase of production. The book deals with the different aspects of natural production within a pond, referring it to African conditions: considering first the role of soil as source and sink of nutrients for the water, then nutrient cycling within water and the fate of fertilizers added to ponds, and finally the contribution of natural productivity to fish production. The important sum of information brought together in this volume is valuable for both aquaculturist and ecologist, who lack a handbook on the ecology of a fish pond. It will capture the interest of African aquaculturists and stimulate aquaculture research on natural production.
Water Quality
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Author : Claude E. Boyd
language : en
Publisher: Springer
Release Date : 2015-07-14
Water Quality written by Claude E. Boyd and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-07-14 with Science categories.
The revised second edition updates and expands the discussion, and incorporates additional figures and illustrative problems. Improvements include a new chapter on basic chemistry, a more comprehensive chapter on hydrology, and an updated chapter on regulations and standards. This book presents the basic aspects of water quality, emphasizing physical, chemical, and biological factors. The study of water quality draws information from a variety of disciplines including chemistry, biology, mathematics, physics, engineering, and resource management. University training in water quality is often limited to specialized courses in engineering, ecology, and fisheries curricula. This book also offers a basic understanding of water quality to professionals who are not formally trained in the subject. Because it employs only first-year college-level chemistry and very basic physics, the book is well-suited as the foundation for a general introductory course in water quality. It is equally useful as a guide for self-study and an in-depth resource for general readers.
Pond Construction For Freshwater Fish Culture
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Author : A. G. Coche
language : en
Publisher: Food & Agriculture Org.
Release Date : 1995
Pond Construction For Freshwater Fish Culture written by A. G. Coche and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Agriculture categories.
Freshwater Pond Animals
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Author : Lisa Colozza Cocca
language : en
Publisher: Carson-Dellosa Publishing
Release Date : 2019-08-11
Freshwater Pond Animals written by Lisa Colozza Cocca and has been published by Carson-Dellosa Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-08-11 with Juvenile Nonfiction categories.
Life in a pond is exciting. Birds, bugs, and shrews skitter across the surface. Turtles and fish zip along under the water’s surface. Beavers, herons, and others make themselves at home by the pond’s edge. In this book, readers in grades 3-5 will discover how these animals survive and thrive in freshwater pond biomes around the world. This NGSS-aligned series is packed with interesting facts and vivid photos that introduce readers to a variety of land and water animals. Each book includes a glossary, comprehension questions, and an activity for home or the classroom.
Field Book Of Ponds And Streams
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Author : Ann Haven Morgan
language : en
Publisher: Forgotten Books
Release Date : 2017-11-22
Field Book Of Ponds And Streams written by Ann Haven Morgan and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-22 with Science categories.
Excerpt from Field Book of Ponds and Streams: An Introduction to the Life of Fresh Water The mistakes that may be discovered in this book are in no way the fault of those who have read the manuscript. I can only hope that if they occur they may not be too confusing and that they may be reported and finally eliminated. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.