Large Lakes - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Large Lakes write by Max M. Tilzer. This book was released on 2012-12-06. Large Lakes available in PDF, EPUB and Kindle. The vast majority of the world's lakes are small in size and short lived in geological terms. Only 253 of the thousands of lakes on this planet have surface areas larger than 500 square kilometers. At first sight, this statistic would seem to indicate that large lakes are relatively unimportant on a global scale; in fact, however, large lakes contain the bulk of the liquid surface freshwater of the earth. Just Lake Baikal and the Laurentian Great Lakes alone contain more than 38% of the world's total liquid freshwater. Thus, the large lakes of the world accentuate an important feature of the earth's freshwater reserves-its extremely irregular distribution. The energy crisis of the 1970s and 1980s made us aware of the fact that we live on a spaceship with finite, that is, exhaustible resources. On the other hand, the energy crisis led to an overemphasis on all the issues concerning energy supply and all the problems connected with producing new energy. The energy crisis also led us to ignore strong evidence suggesting that water of appropriate quality to be used as a resouce will be used up more quickly than energy will. Although in principle water is a "renewable resource," the world's water reserves are diminishing in two fashions, the effects of which are multiplicative: enhanced consumption and accelerated degradation of quality.
European Large Lakes
European Large Lakes - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook European Large Lakes write by Tiina Nõges. This book was released on 2009-01-20. European Large Lakes available in PDF, EPUB and Kindle. Large lakes are important because of their size and ecological distinctiveness as well as their economic and cultural value. Optimal management of them requires a proper understanding of anthropogenic impacts both on the lake ecosystems as such and on the services they provide for society. The specific structural and functional properties of large lakes, e.g. morphology, hydrography, biogeochemical cycles and food-web structure, are all directly related to their size. Although large lakes are among the best-studied ecosystems in the world, the application to them of environmental regulations such as the European Water Framework Directive is a challenging task and requires that several natural and management aspects specific to these water bodies are adequately considered. These vulnerable ecosystems often suffer from accelerated eutrophication, over-fishing, toxic contamination and invasive species. Large lakes offer socio-economic benefits and can be used in many ways, and are often areas in which economic, cultural and political interests overlap. In this book the problems regarding the present status of European large lakes and the directions of change are discussed. Threats caused by direct human impact and by climate change, protection needs and restoration measures are considered.
Toxic Contamination in Large Lakes
Toxic Contamination in Large Lakes - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Toxic Contamination in Large Lakes write by Schmidtke. This book was released on 1988-01-01. Toxic Contamination in Large Lakes available in PDF, EPUB and Kindle. Every notable aspect of Toxic Contamination in Large Lakes is examined by known experts from every continent. Authors represent the U.S. and Canada, Argentina, Sweden, USSR, Israel, Great Britain, Japan, China, The Netherlands, Germany, Kenya, Austria. Authors represent the entire spectrum-academia, government, and industry. The first published work offer such a diverse and complete examination of this subject, it provides valuable information and data for today and tomorrow-and the basis for stimulating new research. Chapters in this work were reviewed and carefully edited, after initial presentation at the World Conference on Large Lakes held May 18-21, 1986 at Mackinac Island, Michigan. It presents a wealth of information...a resource for continued use over the years...and should do much to stimulate further study. This vital work is especially of interest to environmental scientists and toxicologists, fisheries professionals, researchers, aquatic resource managers, ecologists, biologists, chemists, and engineers. Every science or engineering library with a water interest should have this notable reference.
From Limnology to Fisheries: Lake Tanganyika and Other Large Lakes
From Limnology to Fisheries: Lake Tanganyika and Other Large Lakes - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook From Limnology to Fisheries: Lake Tanganyika and Other Large Lakes write by O.V. Lindqvist. This book was released on 1999. From Limnology to Fisheries: Lake Tanganyika and Other Large Lakes available in PDF, EPUB and Kindle. Based on modern limnology and environmental research, syntheses of the composition, functions and production of pelagic ecosystems are being provided in the Great Lakes of Africa. Special attention is given to Lake Tanganyika and recent research activities. New findings on relationships between lake hydrophysics, climatic patterns and biological productivity are presented. The roles of organic matters and microbes are discussed. The implications of environmental and fishery research on regional fisheries management are presented, together with the outcomes of the recent major research projects in lakes Tanganyika and Malawi, particularly in practical fisheries development.
A Fishing Guide to Kentucky's Major Lakes
A Fishing Guide to Kentucky's Major Lakes - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook A Fishing Guide to Kentucky's Major Lakes write by Arthur Lander. This book was released on 1998-04-03. A Fishing Guide to Kentucky's Major Lakes available in PDF, EPUB and Kindle. Kentucky's expert fisherman offers a valuable tool for anglers of all skill levels. This guide contains information on six lakes not covered in the previous edition. Detailed maps of each lake and numerous illustrations are also included.
