Author: United States. Department of the Interior. LibraryPublisher:
ISBN:
Category : Library catalogs
Languages : en
Pages : 692
Book Description
Dictionary Catalog of the Department Library
Author: United States. Department of the Interior. LibraryPublisher:
ISBN:
Category : Library catalogs
Languages : en
Pages : 692
Book Description
Fishery Research Bulletin
Author: Pacific Salmon Life Histories
Author: Cornelis GrootPublisher: UBC Press
ISBN: 9780774803595
Category : Nature
Languages : en
Pages : 602
Book Description
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.
The Behavior and Ecology of Pacific Salmon and Trout
Author: Thomas P. QuinnPublisher: UBC Press
ISBN: 0774842431
Category : Nature
Languages : en
Pages : 392
Book Description
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.
Salmon Production, Management, and Allocation
Author: William J. McNeilPublisher:
ISBN:
Category : Nature
Languages : en
Pages : 216
Book Description
Based on papers presented at the World Salmonid Conference held Oct. 2-3, 1986, in Portland, Or. and sponsored by the Salmonid Foundation.
Fishery Bulletin
Author: Sockeye Salmon (Oncorhynchus Nerka)
Author: Canada. Department of Fisheries and OceansPublisher: Fisheries and Oceans, Information and Publications Branch
ISBN:
Category : Nature
Languages : en
Pages : 508
Book Description
A three-day symposium was organized by the Department of Fisheries and Oceans and convened at Nanaimo, British Columbia in November 1985. Advice on subject matter and participation came from an external committee of senior scientists and administrators in contributing agencies in Canada, Japan, the United States, and the Union of Soviet Socialist Republics. The papers included in the proceedings deal with sockeye biology and stock management. Papers on sockeye biology are divided into those concerned primarily with life history strategies and enhancement and development. Papers dealing with management are divided into the tools of management and management of some principal stocks.
Sport Fishery Abstracts
Author: Fishery Bulletin of the
Author: State and Local Publications Received
Author: Alaska. Division of State Libraries and Museums. Documents SectionPublisher:
ISBN:
Category : Government publications
Languages : en
Pages : 186
Book Description