Farm Ponds In Douglas County Kansas And Their Use In Fish Production Classic Reprint
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Farm Ponds In Douglas County Kansas And Their Use In Fish Production
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Author : Claude E. Hastings
language : en
Publisher:
Release Date : 1962
Farm Ponds In Douglas County Kansas And Their Use In Fish Production written by Claude E. Hastings and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Farm ponds categories.
The Archaeology Of The North American Great Plains
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Author : Douglas B. Bamforth
language : en
Publisher: Cambridge University Press
Release Date : 2021-09-23
The Archaeology Of The North American Great Plains written by Douglas B. Bamforth and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-09-23 with HISTORY categories.
This book uses archaeology to tell 15,000 years of history of the indigenous people of the North American Great Plains.
Synopsis Of Biological Data On The Largemouth Bass Micropterus Salmoides Lacep De 1802
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Author : Roy C. Heidinger
language : en
Publisher: Bernan Press(PA)
Release Date : 1976
Synopsis Of Biological Data On The Largemouth Bass Micropterus Salmoides Lacep De 1802 written by Roy C. Heidinger and has been published by Bernan Press(PA) this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Nature categories.
The Rice Economy Of Asia
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Author : Randolph Barker
language : en
Publisher: Int. Rice Res. Inst.
Release Date : 1985
The Rice Economy Of Asia written by Randolph Barker and has been published by Int. Rice Res. Inst. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Business & Economics categories.
The purpose of this book is to present a comprehensive picture of the role of rice in the food and agricultural sectors of Asian nations.
Field Manual For The Investigation Of Fish Kills
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Author : Fred P. Meyer
language : en
Publisher:
Release Date : 1990
Field Manual For The Investigation Of Fish Kills written by Fred P. Meyer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Fish kills categories.
Fish kills are graphic evidence of serious problems in a lake or stream. If the kill is related to the presence of toxic chemicals, there may be human health concerns, in addition to the obvious damage to the ecosystem and the fisheries resources. Depending on the cause of a fish kill, legal and economic ramifications may be involved. If the kill is caused by human or corporate actions, litigation is likely to follow, with possible court-awarded damages and assessed costs for cleanup and restoration. This manual is intended to help fisheries biologists and others to prepare for a fish kill investigation.
A Handbook Of Global Freshwater Invasive Species
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Author : Robert A. Francis
language : en
Publisher: Routledge
Release Date : 2012-03-12
A Handbook Of Global Freshwater Invasive Species written by Robert A. Francis and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-03-12 with Science categories.
Invasive non-native species are a major threat to global biodiversity. Often introduced accidentally through international travel or trade, they invade and colonize new habitats, often with devastating consequences for the local flora and fauna. Their environmental impacts can range from damage to resource production (e.g. agriculture and forestry) and infrastructure (e.g. buildings, road and water supply), to human health. They consequently can have major economic impacts. It is a priority to prevent their introduction and spread, as well as to control them. Freshwater ecosystems are particularly at risk from invasions and are landscape corridors that facilitate the spread of invasives. This book reviews the current state of knowledge of the most notable global invasive freshwater species or groups, based on their severity of economic impact, geographic distribution outside of their native range, extent of research, and recognition of the ecological severity of the impact of the species by the IUCN. As well as some of the very well-known species, the book also covers some invasives that are emerging as serious threats. Examples covered include a range of aquatic and riparian plants, insects, molluscs, crustacea, fish, amphibians, reptiles and mammals, as well as some major pathogens of aquatic organisms. The book also includes overview chapters synthesizing the ecological impact of invasive species in fresh water and summarizing practical implications for the management of rivers and other freshwater habitats.
Nature At War
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Author : Thomas Robertson
language : en
Publisher: Cambridge University Press
Release Date : 2020-04-02
Nature At War written by Thomas Robertson and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-04-02 with History categories.
"World War II was the largest and most destructive conflict in human history. It was an existential struggle that pitted irreconcilable political systems and ideologies against one another across the globe in a decade of violence unlike any other. There is little doubt today that the United States had to engage in the fighting, especially after the Japanese attack on Pearl Harbor on December 7, 1941. The conflict was, in the words of historians Allan Millett and Williamson Murray, "a war to be won." As the world's largest industrial power, the United States put forth a supreme effort to produce the weapons, munitions, and military formations essential to achieving victory. When the war finally ended, the finale signaled by atomic mushroom clouds over Hiroshima and Nagasaki, upwards of 60 million people had perished in the inferno. Of course, the human toll represented only part of the devastation; global environments also suffered greatly. The growth and devastation of the Second World War significantly changed American landscapes as well. The war created or significantly expanded a number of industries, put land to new uses, spurred urbanization, and left a legacy of pollution that would in time create a new term: Superfund site"--
Principles Of Aquaculture
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Author : Robert R. Stickney
language : en
Publisher: Wiley-Blackwell
Release Date : 1994-02-16
Principles Of Aquaculture written by Robert R. Stickney and has been published by Wiley-Blackwell this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994-02-16 with Nature categories.
Based on the author's previous work, Principles of Warmwater Aquaculture, this text updates and expands upon the basic principles of aquaculture. Encompasses a wider diversity of aquatic animals including coldwater fishes. Focuses on the practical aspects of water quality, feeding and nutrition, reproduction, breeding, diseases and operations. Deals with the environmental, social and economic aspects of aquaculture. Many of the examples feature species of both sport and commercial interest.
Drought And Aquatic Ecosystems
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Author : P. Sam Lake
language : en
Publisher: John Wiley & Sons
Release Date : 2011-06-09
Drought And Aquatic Ecosystems written by P. Sam Lake and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-06-09 with Science categories.
Droughts are a major hazard to both natural and human-dominated environments and those, especially of long duration and high intensity, can be highly damaging and leave long-lasting effects. This book describes the climatic conditions that give rise to droughts, and their various forms and chief attributes. Past droughts are described including those that had severe impacts on human societies. As a disturbance, droughts can be thought of as “ramps” in that they usually build slowly and take time to become evident. As precipitation is reduced, flows from catchments into aquatic systems decline. As water declines in water bodies, ecological processes are changed and the biota can be drastically reduced, though species and populations may survive by using refuges. Recovery from drought varies in both rates and in degrees of completeness and may be a function of both refuge availability and connectivity. For the first time, this book reviews the available rather scattered literature on the impacts of drought on the flora, fauna and ecological processes of aquatic ecosystems ranging from small ponds to lakes and from streams to estuaries. The effects of drought on the biota of standing waters and flowing waters and of temporary waters and perennial systems are described and compared. In addition, the ways in which human activity can exacerbate droughts are outlined. In many parts of the world especially in the mid latitudes, global warming may result in increases in the duration and intensity of droughts. Drought and Aquatic Ecosystems is essential reading for freshwater ecologists, water resource managers and advanced students.
Towns Ecology And The Land
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Author : Richard T. T. Forman
language : en
Publisher: Cambridge University Press
Release Date : 2019-02-07
Towns Ecology And The Land written by Richard T. T. Forman and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-02-07 with Nature categories.
A pioneering book highlighting the dynamic environmental dimensions of towns and villages and spatial connections with surrounding land.