Eel Weir Hydroelectric Project, Water Level Management Plan, Sebago Lake, Cumberland County
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Published: 1997
Total Pages: 190
ISBN-13:
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Published: 1997
Total Pages: 190
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Published: 1995
Total Pages: 1438
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DOWNLOAD EBOOKCurrent developments: a weekly review of pollution control and related environmental management problems -- Decisions (later published in bound volumes. Environment reporter. Cases) --Monographs -- Federal laws -- Federal regulations --State air laws -- State water laws -- State solid waste, land use laws -- Mining.
Author: United States. Federal Energy Regulatory Commission
Publisher:
Published: 2000
Total Pages: 1538
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Published: 1998
Total Pages: 652
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DOWNLOAD EBOOKAuthor: R. W. Dunfield
Publisher: Fisheries and Oceans, Scientific Information and Publications Branch
Published: 1985
Total Pages: 208
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DOWNLOAD EBOOKThe Atlantic salmon (Salmo salar) has occupied a salient position in the history of eastern North America for at least the past 1000 years. Initially the species occupied a prominant niche in the prolific web of life that existed throughout its former occurrence area; millions of pounds of salmon were produced annually from the freshwater streams between New York and Ungava - a resource that was a principal food source for the Amerindian cultures which shared its range. In a chronological and cumulative way, the salmon became an increasingly important factor in both the domestic and commercial life of the developing colonies; it provided a recreational outlet for the sportsman, and evolved as a principal object of intellectual and scientific investigation. The documented specifics of the salmon's history, however, are largely comprised of repetitive instances of overexploitation, careless destruction of stocks and their environment, and ineffectual conservation actions. Despite the species' former importance, its more recent history is one of declining presence, and its destiny appears to be extinction. By documenting this story of discovery, exploitation, and decline, the urgent need for the employment of sound resource management practices to preserve the salmon is emphasized. Appendix A: Historical methods of packing salmon.
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Published: 1984
Total Pages: 80
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DOWNLOAD EBOOKAuthor: Christina De La Rocha
Publisher: Springer
Published: 2017-03-15
Total Pages: 205
ISBN-13: 3319540548
DOWNLOAD EBOOKDo you know silica, the tetrahedra of silicon and oxygen constituting the crystals of New Agers and the desiccant in a box of new shoes? It's no mere mundane mineral. As chemically reacting silicate rocks, silica set off the chain of events known as the origin of life. As biomineralized opal, it is the cell wall, skeleton, spicules, and scales of organisms ornamenting numerous lobes of the tree of life. Cryptocrystalline silica made into stone tools helped drive the evolution of our hands and our capability for complex grammar, music, and mathematics. As quartz crystals, silica is impressively electric and ubiquitous in modern technology (think sonar, radios, telephones, ultrasound, and cheap but precise watches). Silica is inescapable when we take a drink or mow the lawn and it has already started to save the Earth from the carbon dioxide we're spewing into the atmosphere. This book tells these scientific tales and more, to give dear, modest silica its due.
Author: Arthur M. Hussey II
Publisher:
Published: 2015-07-01
Total Pages: 232
ISBN-13: 9780615291833
DOWNLOAD EBOOKThis guide is a significant addition to Maine's literature for the naturalist. Arthur Hussey, Bowdoin College Professor of Geology emeritus, has produced an insightful and lucid explanation of the geology of southwestern Maine. No prerequisites are required to fully understand and appreciate this book. Based on Hussey's fifty-five years of field study, this is a boot-on-the-ground guide that is every bit as good as a textbook on the subject, but far more engaging. Reading it is almost like hearing him speak and personal anecdotes enliven the narrative. The guide is well illustrated with Hussey's own photos, figures and maps. The table summarizing the geological events, glossary of terms and an index are valuable features. The reader will develop an understanding of the southwestern Maine's rock outcrops, its landscape and the forces that account for them.