Lyle Falls Fish Passage Project PDF Download

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Category :
Languages : en
Pages : 108

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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309053250
Category : Technology & Engineering
Languages : en
Pages : 473

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The importance of salmon to the Pacific Northwestâ€"economic, recreational, symbolicâ€"is enormous. Generations ago, salmon were abundant from central California through Idaho, Oregon, and Washington to British Columbia and Alaska. Now they have disappeared from about 40 percent of their historical range. The decline in salmon numbers has been lamented for at least 100 years, but the issue has become more widespread and acute recently. The Endangered Species Act has been invoked, federal laws have been passed, and lawsuits have been filed. More than $1 billion has been spent to improve salmon runsâ€"and still the populations decline. In this new volume a committee with diverse expertise explores the complications and conflicts surrounding the salmon problemâ€"starting with available data on the status of salmon populations and an illustrative case study from Washington state's Willapa Bay. The book offers specific recommendations for salmon rehabilitation that take into account the key role played by genetic variability in salmon survival and the urgent need for habitat protection and management of fishing. The committee presents a comprehensive discussion of the salmon problem, with a wealth of informative graphs and charts and the right amount of historical perspective to clarify today's issues, including: Salmon biology and geographyâ€"their life's journey from fresh waters to the sea and back again to spawn, and their interaction with ecosystems along the way. The impacts of human activitiesâ€"grazing, damming, timber, agriculture, and population and economic growth. Included is a case study of Washington state's Elwha River dam removal project. Values, attitudes, and the conflicting desires for short-term economic gain and long-term environmental health. The committee traces the roots of the salmon problem to the extractive philosophy characterizing management of land and water in the West. The impact of hatcheries, which were introduced to build fish stocks but which have actually harmed the genetic variability that wild stocks need to survive. This book offers something for everyone with an interest in the salmon issueâ€"policymakers and regulators in the United States and Canada; environmental scientists; environmental advocates; natural resource managers; commercial, tribal, and recreational fishers; and concerned residents of the Pacific Northwest.

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Category : Bird surveys
Languages : en
Pages : 394

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Author: George A. Feldhamer
Publisher: JHU Press
ISBN: 9780801874161
Category : Nature
Languages : en
Pages : 1250

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Author: Carl Waldman
Publisher: Infobase Publishing
ISBN: 1438110103
Category : Indians of North America
Languages : en
Pages : 386

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A comprehensive, illustrated encyclopedia which provides information on over 150 native tribes of North America, including prehistoric peoples.

Author: James G. Dickson
Publisher: Stackpole Books
ISBN: 9780811718592
Category : Nature
Languages : en
Pages : 506

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A National Wild Turkey Federation and U.S. Forest Service book Standard reference for all subspecies Extensive, new information on all aspects of wild turkey ecology and management The standard reference for all subspecies--Eastern, Gould's, Merriam's, Florida and Rio Grande--The Wild Turkey summarizes the new technologies and studies leading to better understanding and management. Synthesizing the work of all current experts, The Wild Turkey presents extensive, new data on restoration techniques; population influences and management; physical characteristics and behavior; habitat use by season, sex, and age; historic and seasonal ranges and habitat types; and nesting ecology. The book is designed to further the already incredible comeback of America's wild turkey.

Author: Carl J. Walters
Publisher: Princeton University Press
ISBN: 0691214638
Category : Nature
Languages : en
Pages : 424

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Quantitative modeling methods have become a central tool in the management of harvested fish populations. This book examines how these modeling methods work, why they sometimes fail, and how they might be improved by incorporating larger ecological interactions. Fisheries Ecology and Management provides a broad introduction to the concepts and quantitative models needed to successfully manage fisheries. Walters and Martell develop models that account for key ecological dynamics such as trophic interactions, food webs, multi-species dynamics, risk-avoidance behavior, habitat selection and density-dependence. They treat fisheries policy development as a two-stage process, first identifying strategies for varying harvest in relation to changes in abundance, then finding ways to implement such strategies in terms of monitoring and regulatory procedures. This book provides a general framework for developing assessment models in terms of state-observation dynamics hypotheses, and points out that most fisheries assessment failures have been due to inappropriate observation model hypotheses rather than faulty models for ecological dynamics. Intended as a text in upper division and graduate classes on fisheries assessment and management, this useful guide will also be widely read by ecologists and fisheries scientists.

Author: Darby C. Stapp
Publisher: Northwest Anthropology
ISBN: 1530193559
Category : Social Science
Languages : en
Pages : 146

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JONA Volume 50 Number 1 - Spring 2016 Tales from the River Bank: An In Situ Stone Bowl Found along the Shores of the Salish Sea on the Southern Northwest Coast of British Columbia - Rudy Reimer, Pierre Freile, Kenneth Fath, and John Clague Localized Rituals and Individual Spirit Powers: Discerning Regional Autonomy through Religious Practices in the Coast Salish Past - Bill Angelbeck Assessing the Nutritional Value of Freshwater Mussels on the Western Snake River - Jeremy W. Johnson and Mark G. Plew Snoqualmie Falls: The First Traditional Cultural Property in Washington State Listed in the National Register of Historic Places - Jay Miller with Kenneth Tollefson The Archaeology of Obsidian Occurrence in Stone Tool Manufacture and Use along Two Reaches of the Northern Mid-Columbia River, Washington - Sonja C. Kassa and Patrick T. McCutcheon The Right Tool for the Job: Screen Size and Sample Size in Site Detection - Bradley Bowden Alphonse Louis Pinart among the Natives of Alaska - Richard L. Bland

Author: H. Sawada
Publisher: Springer Science & Business Media
ISBN: 4431669825
Category : Science
Languages : en
Pages : 477

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Ascidians are the invertebrate group that gave rise to vertebrates, thus the biology of ascidians provides an essential key to understanding both invertebrates and vertebrates. This book is the first to cover all areas of ascidian biology, including development, evolution, biologically active substances, heavy metal accumulation, asexual reproduction, host-defense mechanisms, allorecognition mechanisms, comparative immunology, neuroscience, taxonomy, ecology, genome science, and food science. The 69 articles that make up the collection were contributed by leading ascidiologists from all over the world who participated in the First International Symposium on the Biology of Ascidians, held in June 2000 in Sapporo, Japan. For scientists and students alike, the book is an invaluable source of information from the latest, most comprehensive studies of ascidian biology.

Author: Mark Damian Duda
Publisher: Venture Pub
ISBN: 9781892132901
Category : Sports & Recreation
Languages : en
Pages : 259

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Product Description: Nearly 34 million Americans ages 16 and older head outdoors to hunt and fish every year. Through hunting and fishing license fees and excise taxes on hunting and fishing equipment, hunters and anglers are responsible for the majority of fish and wildlife conservation funding in the United States. Fish and wildlife management programs funded by these fees have conserved millions of acres of habitat and have brought back many species, including wild turkey, wood duck, bald eagle, and pronghorn antelope, from unhealthy population levels. Understanding hunting and fishing, and hunters and anglers as a constituency, is vital to effectively managing the nation's natural resources. Policy makers, legislators, fish and wildlife professionals, conservation organizations, and hunters and anglers themselves have an unmet need for science-based, comprehensive information on hunting and fishing to inform their understanding, communications, decision making, and planning. The Sportsman's Voice: Hunting and Fishing in America, is the first book that provides a comprehensive, up-to-date look at hunting and fishing in America. It bridges the gap between hundreds of scientific studies of the human dimensions of conservation and on-the-ground situations, giving this information meaningful context and real-world utility.