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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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Book Description
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.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309053250
Category : Technology & Engineering
Languages : en
Pages : 473
Get Book Here
Book Description
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.
Author: Richard Hakluyt
Publisher:
ISBN:
Category : America
Languages : en
Pages : 312
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Book Description
Author: Carl J. Walters
Publisher: Princeton University Press
ISBN: 0691214638
Category : Nature
Languages : en
Pages : 448
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Book Description
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:
Publisher: Office of Technology Assessment
ISBN:
Category : Nature
Languages : en
Pages : 180
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Book Description
Author: Nils Ryman
Publisher:
ISBN: 9781932846225
Category : Science
Languages : en
Pages : 0
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Book Description
Since the first publication of "Population Genetics and Fishery Management" in 1987, significant technological, analytical, and conceptual changes have occurred. By explaining basic population genetics in a fisheries context, the text continues to serve as an excellent starting point for approaching complex recent developments.
Author: Charles H. Clay
Publisher: CRC Press
ISBN: 135145577X
Category : Science
Languages : en
Pages : 260
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Book Description
This new edition of the best-selling book describes the main types of fishways and fish facilities used around the world to assist the passage of fish over dams and other obstructions to their migration. It also focuses on the protection of fish (mainly young fish) from the hazards encountered in their downstream migrations. The book brings together the type of knowledge and research needed to decide on the facility used as well as its design and operation. It emphasizes the need for both biologists and engineers to collaborate in the design and indicates in what fields such collaboration would benefit fisheries conservation in the future. This is the Second Edition of the only book to bring together all of these topics worldwide under one cover.
Author: Jonathan Lear
Publisher: Harvard University Press
ISBN: 0674040023
Category : Philosophy
Languages : en
Pages : 200
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Book Description
Presents the story of Plenty Coups, the last great Chief of the Crow Nation. This title contains a philosophical and ethical inquiry into a people faced with the end of their way of life.
Author: Eduardo Kohn
Publisher: Univ of California Press
ISBN: 0520276108
Category : Social Science
Languages : en
Pages : 288
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Book Description
Can forests think? Do dogs dream? In this astonishing book, Eduardo Kohn challenges the very foundations of anthropology, calling into question our central assumptions about what it means to be humanÑand thus distinct from all other life forms. Based on four years of fieldwork among the Runa of EcuadorÕs Upper Amazon, Eduardo Kohn draws on his rich ethnography to explore how Amazonians interact with the many creatures that inhabit one of the worldÕs most complex ecosystems. Whether or not we recognize it, our anthropological tools hinge on those capacities that make us distinctly human. However, when we turn our ethnographic attention to how we relate to other kinds of beings, these tools (which have the effect of divorcing us from the rest of the world) break down. How Forests Think seizes on this breakdown as an opportunity. Avoiding reductionistic solutions, and without losing sight of how our lives and those of others are caught up in the moral webs we humans spin, this book skillfully fashions new kinds of conceptual tools from the strange and unexpected properties of the living world itself. In this groundbreaking work, Kohn takes anthropology in a new and exciting directionÐone that offers a more capacious way to think about the world we share with other kinds of beings.
Author: Anna Lowenhaupt Tsing
Publisher: U of Minnesota Press
ISBN: 1452954496
Category : Science
Languages : en
Pages : 734
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Book Description
Living on a damaged planet challenges who we are and where we live. This timely anthology calls on twenty eminent humanists and scientists to revitalize curiosity, observation, and transdisciplinary conversation about life on earth. As human-induced environmental change threatens multispecies livability, Arts of Living on a Damaged Planet puts forward a bold proposal: entangled histories, situated narratives, and thick descriptions offer urgent “arts of living.” Included are essays by scholars in anthropology, ecology, science studies, art, literature, and bioinformatics who posit critical and creative tools for collaborative survival in a more-than-human Anthropocene. The essays are organized around two key figures that also serve as the publication’s two openings: Ghosts, or landscapes haunted by the violences of modernity; and Monsters, or interspecies and intraspecies sociality. Ghosts and Monsters are tentacular, windy, and arboreal arts that invite readers to encounter ants, lichen, rocks, electrons, flying foxes, salmon, chestnut trees, mud volcanoes, border zones, graves, radioactive waste—in short, the wonders and terrors of an unintended epoch. Contributors: Karen Barad, U of California, Santa Cruz; Kate Brown, U of Maryland, Baltimore; Carla Freccero, U of California, Santa Cruz; Peter Funch, Aarhus U; Scott F. Gilbert, Swarthmore College; Deborah M. Gordon, Stanford U; Donna J. Haraway, U of California, Santa Cruz; Andreas Hejnol, U of Bergen, Norway; Ursula K. Le Guin; Marianne Elisabeth Lien, U of Oslo; Andrew Mathews, U of California, Santa Cruz; Margaret McFall-Ngai, U of Hawaii, Manoa; Ingrid M. Parker, U of California, Santa Cruz; Mary Louise Pratt, NYU; Anne Pringle, U of Wisconsin, Madison; Deborah Bird Rose, U of New South Wales, Sydney; Dorion Sagan; Lesley Stern, U of California, San Diego; Jens-Christian Svenning, Aarhus U.
Author: Andrew I. L. Payne
Publisher: John Wiley & Sons
ISBN: 0470999926
Category : Technology & Engineering
Languages : en
Pages : 384
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Book Description
Celebrating the centenary of the Centre for Environment Fisheries and Aquaculture Science (CEFAS) Fisheries Research Laboratory at Lowestoft, UK, this peer-reviewed, edited tome discusses four interwoven themes: · The consequences and management of unregulated/unreported catches · Competition · External drivers and resource behaviour · Ecosystems and migration With contributions from fisheries scientists, policy-makers and managers from more than twenty countries, this international volume has evolved from the CEFAS symposium on International Approaches to Management of Shared Fish Stock- Problems and Future Directions. The editors, Andrew Payne, Carl O’Brien and Stuart Rogers, have succeeded in bringing together the research of over sixty participants into an essential source of reference for all those involved in, or studying, fisheries management across the globe.
