The Behavior and Ecology of Pacific Salmon and Trout

The Behavior and Ecology of Pacific Salmon and Trout
Author: Thomas P. Quinn
Publisher: UBC Press
Total Pages: 392
Release: 2011-11-01
Genre: Nature
ISBN: 0774842431

Download The Behavior and Ecology of Pacific Salmon and Trout Book in PDF, Epub and Kindle

The Behavior and Ecology of Pacific Salmon and Trout explains the patterns of mate choice, the competition for nest sites, and the fate of the salmon after their death. It describes the lives of offspring during the months they spend incubating in gravel, growing in fresh water, and migrating out to sea to mature. This thorough, up-to-date survey should be on the shelf of everyone with a professional or personal interest in Pacific salmon and trout. Written in a technically accurate but engaging style, it will appeal to a wide range of readers, including students, anglers, biologists, conservationists, legislators, and armchair naturalists.

Sustainable Fisheries Management

Sustainable Fisheries Management
Author: E. Eric Knudsen
Publisher: CRC Press
Total Pages: 706
Release: 2020-02-10
Genre: Nature
ISBN: 0429526369

Download Sustainable Fisheries Management Book in PDF, Epub and Kindle

What has happened to the salmon resource in the Pacific Northwest? Who is responsible and what can be done to reverse the decline in salmon populations? The responsibly falls on everyone involved - fishermen, resource managers and concerned citizens alike - to take the steps necessary to ensure that salmon populations make a full recovery. T

The Pacific Salmon Fisheries

The Pacific Salmon Fisheries
Author: James A. Crutchfield
Publisher: Routledge
Total Pages: 233
Release: 2013-10-18
Genre: Nature
ISBN: 113598462X

Download The Pacific Salmon Fisheries Book in PDF, Epub and Kindle

This study attributes the chronic economic distress of the valuable Pacific salmon industry not only to decline in catch but also to the economic problems of open access ocean fisheries. It analyzes salmon public management programs and proposes alternatives. Originally published in 1969

Pacific Salmon Management

Pacific Salmon Management
Author:
Publisher:
Total Pages: 20
Release: 1991
Genre: Fishery management
ISBN:

Download Pacific Salmon Management Book in PDF, Epub and Kindle

Pacific Salmon Life Histories

Pacific Salmon Life Histories
Author: Cornelis Groot
Publisher: UBC Press
Total Pages: 602
Release: 1991
Genre: Nature
ISBN: 9780774803595

Download Pacific Salmon Life Histories Book in PDF, Epub and Kindle

Pacific 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.

Sustainable Fisheries Management

Sustainable Fisheries Management
Author: E. Eric Knudsen
Publisher: CRC Press
Total Pages: 906
Release: 2020-02-10
Genre: Nature
ISBN: 9781439822678

Download Sustainable Fisheries Management Book in PDF, Epub and Kindle

What has happened to the salmon resource in the Pacific Northwest? Who is responsible and what can be done to reverse the decline in salmon populations? The responsibly falls on everyone involved - fishermen, resource managers and concerned citizens alike - to take the steps necessary to ensure that salmon populations make a full recovery. T

Salmon Without Rivers

Salmon Without Rivers
Author: Jim Lichatowich
Publisher:
Total Pages: 346
Release: 1999-08
Genre: History
ISBN:

Download Salmon Without Rivers Book in PDF, Epub and Kindle

"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.

Pacific Salmon Fisheries

Pacific Salmon Fisheries
Author: John Nathan Cobb
Publisher:
Total Pages: 316
Release: 1921
Genre: Fish-culture
ISBN:

Download Pacific Salmon Fisheries Book in PDF, Epub and Kindle