Author: Mary F. WillsonPublisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 60
Book Description
Variation in Salmonid Life Histories
Author: Mary F. WillsonPublisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 60
Book Description
Research Paper PNW.
Author: Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 196
Book Description
Climate and Fisheries
Author: D. H. CushingPublisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 396
Book Description
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.
Southwest Regional Approach to Data Collection on California Coastal Salmonids
Author: Michael PragerPublisher:
ISBN:
Category : Fishery management
Languages : en
Pages : 96
Book Description
"Numerous California salmonids are listed or proposed for listing under the Endangered Species Act (ESA). The National Marine Fisheries Service (NMFS) has management responsibility for those listings and consequently requires quantitative data on abundance and biological characteristics of the fish populations, both for assessing current status and for projecting the future viability of the populations. At present, there is need for coordinated, comprehensive data collection on California coastal salmonids. With this in mind, a workshop was convened in Tiburon, California, by scientists and managers of the NMFS Southwest Regional Office (SWRO) and Southwest Fisheries Science Center (SWFSC). Participants discussed what data collection must be done, by whom, and the resources that will be needed. The emphasis of the meeting was on coho salmon and steelhead; participants acknowledged the need for a future meeting to discuss coastal chinook"--Executive summary
Bibliography of Agriculture
Author: Trout and Salmon
Author: Trevor CrispPublisher: John Wiley & Sons
ISBN: 0470999764
Category : Technology & Engineering
Languages : en
Pages : 224
Book Description
This important book contains a great wealth of practical information on trout and salmon, species of fish that are of huge scientific and commercial interest. The introductory chapters of Trout and Salmon cover the biology and environmental variables of importance when considering these species. Further chapters encompass current information on the ecology of salmon and trout, with particular emphasis on the definition and quantification, where possible, of their environmental requirements and limitations. Comprehensive coverage of the impacts of human activities on trout and salmon is included, together with important aspects of relevance when considering issues of species conservation and habitat restoration. The book concentrates on the two species of the genus Salmo with many references and comparisons with the genus Oncorhynchus. Conclusions drawn within the book apply to both genera and as such the book will have relevance for both Europe and North America as well as other areas where these genera occur. Trevor Crisp has written a book that will be of great interest and use to fish biologists and fisheries scientists, to aquatic biologists, conservationists, ecologists and environmental scientists. The book will be particularly valuable for those working in government environment agencies and fish and wildlife departments and to all those involved in the management of these important species, their fisheries and habitats.
The Structure, Function and Management Implications of Fluvial Sedimentary Systems
Author: Fiona J. DyerPublisher:
ISBN: 9781901502961
Category : Rivers
Languages : en
Pages : 502
Book Description
The Exploitation of Evolving Resources
Author: T.Kevin StokesPublisher: Springer Science & Business Media
ISBN: 3642483941
Category : Science
Languages : en
Pages : 270
Book Description
The impact of man on the biosphere is profound. Quite apart from our capacity to destroy natural ecosystems and to drive species to extinction, we mould the evolution of the survivors by the selection pressures we apply to them. This has implications for the continued health of our natural biological resources and for the way in which we seek to optimise yield from those resources. Of these biological resources, fish stocks are particularly important to mankind as a source of protein. On a global basis, fish stocks provide the major source of protein for human consumption from natural ecosystems, amounting to some seventy million tonnes in 1970. Although fisheries management has been extensively developed over the last century, it has not hitherto considered the evolutionary consequences of fishing activity. While this omission may not have been serious in the past, the ever increasing intensity of exploitation and the deteriorating health of fish stocks has generated an urgent need for a better understanding of evolution driven by harvesting and the implications of this for fish stock management. The foundations for this understanding for the most part come from recent developments in evolutionary biology and are not generally available to fisheries scientists. The purpose of this book is to provide this basis in a form that is both accessible and relevant to fisheries biology.
Author: Andrés Martinez