Canadian Journal of Fisheries and Aquatic Sciences PDF Download
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Author:
Publisher:
ISBN:
Category : Aquatic sciences
Languages : en
Pages : 666
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Book Description
Author:
Publisher:
ISBN:
Category : Aquatic sciences
Languages : en
Pages : 666
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Book Description
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1006
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Book Description
Author: Robert E. Gresswell
Publisher:
ISBN:
Category : Cutthroat trout
Languages : en
Pages : 162
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Book Description
Author: Jerry Johnson
Publisher: Rowman & Littlefield
ISBN: 1589795229
Category : Nature
Languages : en
Pages : 185
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Book Description
Visitors to Yellowstone National Park are drawn to the spectacular scenery, unique thermal features, and the large numbers of wild animals easily observed in their natural habitat. The thoughtful visitor to the park cannot help but be captivated by the unparalleled breadth of scientific knowledge needed to understand the intricate interrelationships that make up the yellowstone landscape. Knowing Yellowstone explores how scientists discover what they know about America's first national park and the surrounding lands. The chapter authors are scientists who represent the best of their fields of study. The science they describe is leading the way to our understanding of complex ecosystems worldwide.
Author: Donald A. Duff
Publisher: DIANE Publishing
ISBN: 0788145673
Category :
Languages : en
Pages : 199
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Book Description
This document focuses on the current status, distribution and range for five subspecies of cutthroat trout Oncorhynchus clarki, which are found largely on national forest system lands and ecosystems in the Rocky Mountain and Intermountain West within the U.S. from the Canadian to the Mexican border. The 5 subspecies -- Westslope, Yellowstone, Bonneville, Rio Grande, and Colorado River cutthroat trout -- are designated either species of special concern or sensitive. These subspecies are presently restricted to a fragment of their former range. Includes assessment methods, and origins and taxonomic theory. Illustrated.
Author: Anders Halverson
Publisher: Yale University Press
ISBN: 0300166869
Category : Science
Languages : en
Pages : 325
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Book Description
Anders Halverson provides an exhaustively researched and grippingly rendered account of the rainbow trout and why it has become the most commonly stocked and controversial freshwater fish in the United States. Discovered in the remote waters of northern California, rainbow trout have been artificially propagated and distributed for more than 130 years by government officials eager to present Americans with an opportunity to get back to nature by going fishing. Proudly dubbed an entirely synthetic fish by fisheries managers, the rainbow trout has been introduced into every state and province in the United States and Canada and to every continent except Antarctica, often with devastating effects on the native fauna. Halverson examines the paradoxes and reveals a range of characters, from nineteenth-century boosters who believed rainbows could be the saviors of democracy to twenty-first-century biologists who now seek to eradicate them from waters around the globe. Ultimately, the story of the rainbow trout is the story of our relationship with the natural world--how it has changed and how it startlingly has not.
Author: United States. National Park Service
Publisher:
ISBN:
Category : National parks and reserves
Languages : en
Pages : 162
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Book Description
Author: Robert J. Behnke
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 310
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Book Description
Author: Joseph S. Nelson
Publisher: University of Alberta
ISBN: 9780888642363
Category : Nature
Languages : en
Pages : 468
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Book Description
Information on the 59 species of fish found in Alberta, information on identification, distribution, biology, taxonomic history, and angling.
Author: John D. Varley
Publisher: Stackpole Books
ISBN: 9780811727778
Category : Nature
Languages : en
Pages : 170
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Book Description
This richly illustrated and thoroughly researched reference covers all the species of fish and every aspect of their existence in one of the most famous sport fisheries in the world. This edition includes new material on the impact of forest fires and the introduction of non-native species; an expanded chapter on angling; and an assessment of recent management policies. Full color plates and historic b&w photos.
