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Author: Kenneth H. Mosher Publisher: Forgotten Books ISBN: 9780484442060 Category : Science Languages : en Pages : 24
Book Description
Excerpt from Identification of Pacific Salmon and Steelhead Trout by Scale Characteristics In the following sections various subjects bearing on the use of scales for identification of species will be discussed. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Kenneth H. Mosher Publisher: Forgotten Books ISBN: 9780484442060 Category : Science Languages : en Pages : 24
Book Description
Excerpt from Identification of Pacific Salmon and Steelhead Trout by Scale Characteristics In the following sections various subjects bearing on the use of scales for identification of species will be discussed. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Jim Lichatowich Publisher: ISBN: Category : History Languages : en Pages : 346
Book Description
"Fundamentally, the salmon's decline has been the consequence of a vision based on flawed assumptions and unchallenged myths.... We assumed we could control the biological productivity of salmon and 'improve' upon natural processes that we didn't even try to understand. We assumed we could have salmon without rivers." --from the introduction From a mountain top where an eagle carries a salmon carcass to feed its young to the distant oceanic waters of the California current and the Alaskan Gyre, salmon have penetrated the Northwest to an extent unmatched by any other animal. Since the turn of the twentieth century, the natural productivity of salmon in Oregon, Washington, California, and Idaho has declined by eighty percent. The decline of Pacific salmon to the brink of extinction is a clear sign of serious problems in the region. In Salmon Without Rivers, fisheries biologist Jim Lichatowich offers an eye-opening look at the roots and evolution of the salmon crisis in the Pacific Northwest. He describes the multitude of factors over the past century and a half that have led to the salmon's decline, and examines in depth the abject failure of restoration efforts that have focused almost exclusively on hatcheries to return salmon stocks to healthy levels without addressing the underlying causes of the decline. The book: describes the evolutionary history of the salmon along with the geologic history of the Pacific Northwest over the past 40 million years considers the indigenous cultures of the region, and the emergence of salmon-based economies that survived for thousands of years examines the rapid transformation of the region following the arrival of Europeans presents the history of efforts to protect and restore the salmon offers a critical assessment of why restoration efforts have failed Throughout, Lichatowich argues that the dominant worldview of our society -- a worldview that denies connections between humans and the natural world -- has created the conflict and controversy that characterize the recent history of salmon; unless that worldview is challenged and changed, there is little hope for recovery. Salmon Without Rivers exposes the myths that have guided recent human-salmon interactions. It clearly explains the difficult choices facing the citizens of the region, and provides unique insight into one of the most tragic chapters in our nation's environmental history.
Author: Robert Behnke Publisher: Simon and Schuster ISBN: 145160355X Category : Nature Languages : en Pages : 376
Book Description
This beautiful and definitive guide brings together the world's lead leading expert on North American trout and salmon, Robert Behnke, and the foremost illustrator in the field, Joseph Tomelleri. North America is graced with the greatest diversity of trout and salmon on earth. From tiny brook trout in mountain streams of the Northeast, to cutthroat trout in the rivers of the Rockies, to Chinook salmon of the Pacific, the continent is home to more than 70 types of trout and salmon. How this came to be, how they are related, and what makes them unique -- and so breathtaking -- is the story of Trout and Salmon of North America. The more than 100 illustrations of trout and salmon by Joseph Tomelleri showcased here exhibit a genius for detail, coloration, and proportion. Each portrait is made from field notes, streamside observations, photographs, and specimens collected by the artist. The result is a set of the most accurate and stunning illustrations of fish ever created. Robert Behnke has distilled 50 years of his research and writing about trout and salmon in completing this book. No one understands better than Behnke the diversity and conservation issues concerning these fishes or communicates so lucidly the biological wonders and complexities of their particular beauty. Also included are more than 40 richly detailed maps that clearly show the ranges of populations of trout and salmon throughout North America. An irresistible delight for anyone who appreciates natural history, Trout and Salmon of North America is a master guide to the natural elegance of our native fishes.
Author: James D. McCleave Publisher: Springer Science & Business Media ISBN: 1461327636 Category : Science Languages : en Pages : 567
Book Description
The last major synthesis of our knowledge of fish migration and the underlying transport and guidance phenomena, both physical and biological, was "Fish Migration" published 16 years ago by F.R. Harden Jones (1968). That synthesis was based largely upon what could be gleaned by classical fishery-biology techni.ques, such as tagging and recapture studies, commercial fishing statistics, and netting and trapping studies. Despite the fact that Harden Jones also provided, with a good deal of thought and speculation, a theoretical basis for studying the various aspects of fish migration and migratory orientation, progress in this field has been, with a few excepti.ons, piecemeal and more disjointed than might have been expected. Thus we welcomed the approach from the NATO Marine Sciences Programme Panel and the encouragement from F.R. Harden Jones to develop a proprosal for, and ultimately to organize, a NATO Advanced Research Institute (ARI) on mechanisms of fish migration. Substantial progress had been made with descriptive, analytical and predictive approaches to fish migration since the appearance of "Fish ~ligration." Both because of the progress and the often conflicting results of research, we felt that the time was again right and the effort justified to synthesize and to critically assess our knowledge. Our ultimate aim was to identify the gains and shortcomings and to develop testable hypotheses for the next decade or two.
Author: Bror Jonsson Publisher: Springer Science & Business Media ISBN: 9400711891 Category : Science Languages : en Pages : 720
Book Description
Destruction of habitat is the major cause for loss of biodiversity including variation in life history and habitat ecology. Each species and population adapts to its environment, adaptations visible in morphology, ecology, behaviour, physiology and genetics. Here, the authors present the population ecology of Atlantic salmon and brown trout and how it is influenced by the environment in terms of growth, migration, spawning and recruitment. Salmonids appeared as freshwater fish some 50 million years ago. Atlantic salmon and brown trout evolved in the Atlantic basin, Atlantic salmon in North America and Europe, brown trout in Europe, Northern Africa and Western Asia. The species live in small streams as well as large rivers, lakes, estuaries, coastal seas and oceans, with brown trout better adapted to small streams and less well adapted to feeding in the ocean than Atlantic salmon. Smolt and adult sizes and longevity are constrained by habitat conditions of populations spawning in small streams. Feeding, wintering and spawning opportunities influence migratory versus resident lifestyles, while the growth rate influences egg size and number, age at maturity, reproductive success and longevity. Further, early experiences influence later performance. For instance, juvenile behaviour influences adult homing, competition for spawning habitat, partner finding and predator avoidance. The abundance of wild Atlantic salmon populations has declined in recent years; climate change and escaped farmed salmon are major threats. The climate influences through changes in temperature and flow, while escaped farmed salmon do so through ecological competition, interbreeding and the spreading of contagious diseases. The authors pinpoint essential problems and offer suggestions as to how they can be reduced. In this context, population enhancement, habitat restoration and management are also discussed. The text closes with a presentation of what the authors view as major scientific challenges in ecological research on these species.
Author: Langdon Cook Publisher: Ballantine Books ISBN: 1101882905 Category : Nature Languages : en Pages : 337
Book Description
Finalist for the Washington State Book Award • From the award-winning author of The Mushroom Hunters comes the story of an iconic fish, perhaps the last great wild food: salmon. For some, a salmon evokes the distant wild, thrashing in the jaws of a hungry grizzly bear on TV. For others, it’s the catch of the day on a restaurant menu, or a deep red fillet at the market. For others still, it’s the jolt of adrenaline on a successful fishing trip. Our fascination with these superlative fish is as old as humanity itself. Long a source of sustenance among native peoples, salmon is now more popular than ever. Fish hatcheries and farms serve modern appetites with a domesticated “product”—while wild runs of salmon dwindle across the globe. How has this once-abundant resource reached this point, and what can we do to safeguard wild populations for future generations? Langdon Cook goes in search of the salmon in Upstream, his timely and in-depth look at how these beloved fish have nourished humankind through the ages and why their destiny is so closely tied to our own. Cook journeys up and down salmon country, from the glacial rivers of Alaska to the rainforests of the Pacific Northwest to California’s drought-stricken Central Valley and a wealth of places in between. Reporting from remote coastlines and busy city streets, he follows today’s commercial pipeline from fisherman’s net to corporate seafood vendor to boutique marketplace. At stake is nothing less than an ancient livelihood. But salmon are more than food. They are game fish, wildlife spectacle, sacred totem, and inspiration—and their fate is largely in our hands. Cook introduces us to tribal fishermen handing down an age-old tradition, sport anglers seeking adventure and a renewed connection to the wild, and scientists and activists working tirelessly to restore salmon runs. In sharing their stories, Cook covers all sides of the debate: the legacy of overfishing and industrial development; the conflicts between fishermen, environmentalists, and Native Americans; the modern proliferation of fish hatcheries and farms; and the longstanding battle lines of science versus politics, wilderness versus civilization. This firsthand account—reminiscent of the work of John McPhee and Mark Kurlansky—is filled with the keen insights and observations of the best narrative writing. Cook offers an absorbing portrait of a remarkable fish and the many obstacles it faces, while taking readers on a fast-paced fishing trip through salmon country. Upstream is an essential look at the intersection of man, food, and nature. Praise for Upstream “Invigorating . . . Mr. Cook is a congenial and intrepid companion, happily hiking into hinterlands and snorkeling in headwaters. Along the way we learn about filleting techniques, native cooking methods and self-pollinating almond trees, and his continual curiosity ensures that the narrative unfurls gradually, like a long spey cast. . . . With a pedigree that includes Mark Kurlansky, John McPhee and Roderick Haig-Brown, Mr. Cook’s style is suitably fluent, an occasional phrase flashing like a flank in the current. . . . For all its rehearsal of the perils and vicissitudes facing Pacific salmon, Upstream remains a celebration.”—The Wall Street Journal
Author: Julie Koppel Maldonado Publisher: Springer ISBN: 3319052667 Category : Science Languages : en Pages : 178
Book Description
With a long history and deep connection to the Earth’s resources, indigenous peoples have an intimate understanding and ability to observe the impacts linked to climate change. Traditional ecological knowledge and tribal experience play a key role in developing future scientific solutions for adaptation to the impacts. The book explores climate-related issues for indigenous communities in the United States, including loss of traditional knowledge, forests and ecosystems, food security and traditional foods, as well as water, Arctic sea ice loss, permafrost thaw and relocation. The book also highlights how tribal communities and programs are responding to the changing environments. Fifty authors from tribal communities, academia, government agencies and NGOs contributed to the book. Previously published in Climatic Change, Volume 120, Issue 3, 2013.
Author: Kenneth H. Mosher
Author: Kenneth H. Mosher
Author: Kenneth H. Mosher
Author: Jim Lichatowich
Author: Joe Holmberg
Author: Robert Behnke
Author: 
Author: James D. McCleave
Author: Bror Jonsson
Author: Langdon Cook
Author: Julie Koppel Maldonado