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Author : Anonim
Publisher : Unknown
Page : 358 pages
File Size : 43,7 Mb
Release : 1984
Category : Fishes
ISBN : UVA:35007004717546
Author : National Research Council Canada,Canada. Department of Fisheries and Oceans
Publisher : NRC Research Press
Page : 756 pages
File Size : 54,9 Mb
Release : 1995
Category : Nature
ISBN : 0660157802
These documents summarize some of the recent studies of the relationships among climate, the aquatic environment, and the dynamics of fish populations. The studies are mostly from the North Pacific ocean, but there are reports of investigations from the North Atlatic Ocean and from fresh water. Various papers include numerous examples of the relationships between fish abundance trends and the environment.
Author : Michael D. Kelly
Publisher : Unknown
Page : 244 pages
File Size : 44,6 Mb
Release : 1990
Category : Fish hatcheries
ISBN : ERDC:35925002993415
Author : Deanna J. Stouder,Peter A. Bisson,Robert J. Naiman
Publisher : Springer Science & Business Media
Page : 732 pages
File Size : 49,8 Mb
Release : 1997
Category : Nature
ISBN : 0412986914
This text examines the ecology of the Pacific salmon
Author : Anonim
Publisher : Unknown
Page : 238 pages
File Size : 51,9 Mb
Release : 1990
Category : Fisheries
ISBN : MINN:30000010395147
Author : Joseph E. Taylor III
Publisher : University of Washington Press
Page : 456 pages
File Size : 54,6 Mb
Release : 2009-11-23
Category : Technology & Engineering
ISBN : 9780295989914
Winner of the George Perkins Marsh Award, American Society for Environmental History
Author : Gregory R. McMurray,Robert J. Bailey
Publisher : Unknown
Page : 380 pages
File Size : 44,6 Mb
Release : 1998
Category : Coastal ecology
ISBN : UCSD:31822028415644
Author : National Research Council,Polar Research Board,Ocean Studies Board,Committee on a Science Plan for the North Pacific Research Board
Publisher : National Academies Press
Page : 140 pages
File Size : 40,6 Mb
Release : 2004-05-06
Category : Science
ISBN : 9780309091442
The North Pacific Research Board (NPRB) was established in 1997 as custodian to a pool of funds intended for the study of the North Pacific Ocean, Bering Sea, and Arctic Ocean. The success of the NRPB is the development of a high quality, long-range science plan that provides a better understanding of ecosystems and their fisheries in the region. This report provides a framework to help the NPRB identify appropriate science themes and mechanisms for administering and distributing the funds. It contains extensive input from residents of Alaskan communities, to help scientists understand and address issues of importance to the local communities. The book makes specific recommendations on long-term research priorities, the NPRB management structure and the development of future programs.
Author : Anonim
Publisher : Unknown
Page : 534 pages
File Size : 55,5 Mb
Release : 1996
Category : Electronic
ISBN : NWU:35556030600340
Author : Anonim
Publisher : Unknown
Page : 258 pages
File Size : 52,9 Mb
Release : 1984
Category : Fisheries
ISBN : OSU:32435022958995
Author : Cornelis Groot
Publisher : UBC Press
Page : 534 pages
File Size : 51,9 Mb
Release : 2010-10-01
Category : Nature
ISBN : 0774859865
Every year, countless juvenile Pacific salmon leave streams and rivers on their migration to feeding grounds in the North Pacific Ocean and the Bering Sea. After periods ranging from a few months to several years, adult salmon enter rivers along the coasts of Asia and North America to spawn and complete their life cycle. Within this general outline, various life history patterns, both among and within species, involve diverse ways of exploiting freshwater, estuarine, and marine habitats. There are seven species of Pacific salmon. Five (coho, chinook chum, pink, and sockeye) occur in both North America and Asia. Their complex life histories and spectacular migrations have long fascinated biologists and amateurs alike. Physiological Ecology of Pacific Salmon provides comprehensive reviews by leading researchers of the physiological adaptations that allow Pacific Salmon to sustain themselves in the diverse environments in which they live. It begins with an analysis of energy expenditure and continues with reviews of locomotion, growth, feeding, and nutrition. Subsequent chapters deal with osmotic adjustments enabling the passage between fresh and salt water, nitrogen excretion and regulation of acid-base balance, circulation and gas transfer, and finally, responses to stress. This thorough and authoritative volume will be a valuable reference for students and researchers of biology and fisheries science as they seek to understand the environmental requirements for the perpetuation of these unique and valuable species.
Author : Fritz Trillmich,Kathryn A. Ono
Publisher : Springer Science & Business Media
Page : 299 pages
File Size : 40,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642763984
El Niño is a meteorological and oceanographic phenomenon, which occurs at irregular intervals in the eastern tropical Pacific. Its most obvious characteristic is the warming of surface waters, which causes enormous disturbances of the marine environment. A severe Niño may also affect continental systems worldwide. This book gathers in a comprehensive way the information available on the effects of the exceptionally strong 1982-83 Niño on a group of marine mammals, the pinnipeds. It presents an analysis of the effects of environmental stress on the populations of top predators. Data and interpretations are based on a most unusual collection of long-term studies of pinniped population dynamics, behavior and ecology which spanned the El Niño event. The responses of pinniped populations to the El Niño disturbance of the marine ecosystem also has important implications for the management and conservation of marine mammal populations.
Author : Cornelis Groot,L. Margolis
Publisher : UBC Press
Page : 602 pages
File Size : 41,9 Mb
Release : 1991
Category : Nature
ISBN : 0774803592
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.
Author : Anonim
Publisher : Unknown
Page : 994 pages
File Size : 44,5 Mb
Release : 1998
Category : Biodiversity
ISBN : MINN:31951D01924849Y
Author : Anonim
Publisher : Unknown
Page : 856 pages
File Size : 53,6 Mb
Release : 1994
Category : Fisheries
ISBN : UCAL:B4117050
