Salmonid Ecosystems of the North Pacific
Author: William J. McNeil
Publisher: Oregon State University Press
Published: 1980
Total Pages: 358
ISBN-13:
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Author: William J. McNeil
Publisher: Oregon State University Press
Published: 1980
Total Pages: 358
ISBN-13:
DOWNLOAD EBOOKAuthor: Deanna J. Stouder
Publisher: Springer Science & Business Media
Published: 2012-02-02
Total Pages: 681
ISBN-13: 1461563755
DOWNLOAD EBOOKThe symposium "Pacific Salmon and Their Ecosystems: Status and Future Options',' and this book resulted from initial efforts in 1992 by Robert J. Naiman and Deanna J. Stouder to examine the problem of declining Pacific salmon (Oncorhynchus spp.). Our primary goal was to determine informational gaps. As we explored different scientific sources, state, provincial, and federal agencies, as well as non-profit and fishing organizations, we found that the information existed but was not being communicated across institutional and organizational boundaries. At this juncture, we decided to create a steering committee and plan a symposium to bring together researchers, managers, and resource users. The steering committee consisted of members from state and federal agencies, non-profit organizations, and private industry (see Acknowledgments for names and affiliations). In February 1993, we met at the University of Washington in Seattle to begin planning the symposium. The steering committee spent the next four months developing the conceptual framework for the symposium and the subsequent book. Our objectives were to accomplish the following: (1) assess changes in anadromous Pacific Northwest salmonid populations, (2) examine factors responsible for those changes, and (3) identify options available to society to restore Pacific salmon in the Northwest. The symposium on Pacific Salmon was held in Seattle, Washington, January 10-12, 1994. Four hundred and thirty-five people listened to oral presentations and examined more than forty posters over two and a half days. We made a deliberate attempt to draw in speakers and attendees from outside the Pacific Northwest.
Author: Cornelis Groot
Publisher: UBC Press
Published: 1991
Total Pages: 602
ISBN-13: 9780774803595
DOWNLOAD EBOOKPacific salmon are an important biological and economic resource of countries of the North Pacific rim. They are also a unique group of fish possessing unusually complex life histories. There are seven species of Pacific salmon, five occurring on both the North American and Asian continents (sockeye, pink, chum, chinook, and coho) and two (masu and amago) only in Asia. The life cycle of the Pacific salmon begins in the autumn when the adult female deposits eggs that are fertilized in gravel beds in rivers or lakes. The young emerge from the gravel the following spring and will either migrate immediately to salt water or spend one or more years in a river or lake before migrating. Migrations in the ocean are extensive during the feeding and growing phase, covering thousands of kilometres. After one or more years the maturing adults find their way back to their home river, returning to their ancestral breeding grounds to spawn. They die after spawning and the eggs in the gravel signify a new cycle. Upon this theme Pacific salmon have developed many variations, both between as well as within species. Pacific Salmon Life Histories provides detailed descriptions of the different life phases through which each of the seven species passes. Each chapter is written by a scientist who has spent years studying and observing a particular species of salmon. Some of the topics covered are geographic distribution, transplants, freshwater life, ocean life, development, growth, feeding, diet, migration, and spawning behaviour. The text is richly supplemented by numerous maps, illustrations, colour plates, and tables and there is a detailed general index, as well as a useful geographical index.
Author: Richard Beamish
Publisher:
Published: 2007
Total Pages: 360
ISBN-13:
DOWNLOAD EBOOKAuthor: J. Alan Yeakley
Publisher: Springer Science & Business Media
Published: 2013-11-20
Total Pages: 270
ISBN-13: 1461488184
DOWNLOAD EBOOKWild salmon, trout, char, grayling, and whitefish (collectively salmonids) have been a significant local food and cultural resource for Pacific Northwest peoples for millennia. The location, size, and distribution of urban areas along streams, rivers, estuaries, and coasts directly and indirectly alter and degrade wild salmonid populations and their habitats. Although urban and exurban areas typically cover a smaller fraction of the landscape than other land uses combined, they have profound consequences for local ecosystems, aquatic and terrestrial populations, and water quality and quantity.
Author: William G. Pearcy
Publisher: University of Washington Press
Published: 1992
Total Pages: 200
ISBN-13:
DOWNLOAD EBOOKA compendium of Northeast Pacific salmon ecology, encompassing all five salmon and two trout species of Oncorhynchus--with Oregon coho salmon, the author's specialty for the past decade, acting as centerpiece. Annotation copyrighted by Book News, Inc., Portland, OR
Author:
Publisher:
Published: 2007
Total Pages: 359
ISBN-13:
DOWNLOAD EBOOKAuthor: Dale Stokes
Publisher: Univ of California Press
Published: 2014-06-12
Total Pages: 172
ISBN-13: 0520269209
DOWNLOAD EBOOKExplores the complex web of interactions between the salmon of the Pacific Northwest and the surrounding ecosystem, including its relationship with streambeds, treetops, sea urchins, bears, orcas, rain forests, kelp forests and so much more, in a book with 70 full-color photos.
Author: George Herbert Allen
Publisher:
Published: 1958
Total Pages: 18
ISBN-13:
DOWNLOAD EBOOKAuthor: Michael D. Kelly
Publisher:
Published: 1990
Total Pages: 244
ISBN-13:
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