Author : Paul R. Becker
Publisher :
Page : 314 pages
File Size : 24,74 MB
Release : 1987
Category : Environmental impact analysis
ISBN :
Author :
Publisher :
Page : 568 pages
File Size : 17,99 MB
Release : 1980
Category : Electronic journals
ISBN :
Author : Bryan R. Davies
Publisher : Springer Science & Business Media
Page : 788 pages
File Size : 16,34 MB
Release : 2013-03-09
Category : Science
ISBN : 9401732906
Our understanding of the ecology of running waters has come a long way during the past few years. From being a largely descriptive subject, with a few under tones concerned with such things as fisheries, pollution or control of blackflies, it has evolved into a discipline with hypotheses, such as the River Continuum Concept (Vannote et a/. 1980), and even a book suggesting that it offers opportunity for the testing of ecological theory (Barnes & Minshall 1983). However, perusal of the literature reveals that, although some of the very early studies were concerned with large rivers (references in Hynes 1970), the great mass of the work that has been done on running water has been on streams and small rivers, and information on larger rivers is either on such limited topics as fisheries or plankton, scattered among the journals, or not available to the general limnologist. The only exceptions are a few books in this series of publications, such as those on the Nile (Rz6ska 1976), the Volga (Morduckai Boltovskoi 1979) and the Amazon {Sioli 1984), and the recent compendium by Whitton (1984) on European rivers, among which there are a few that rate as large.
Author : Canada. Department of Fisheries and Oceans
Publisher : NRC Research Press
Page : 464 pages
File Size : 11,64 MB
Release : 1993
Category : Nature
ISBN : 9780660150031
Co-published by: National Research Council of Canada.
Author : Crossman
Publisher : BRILL
Page : 406 pages
File Size : 11,38 MB
Release : 2024-02-12
Category : Science
ISBN : 9004628282
Author : D. B. Stewart
Publisher : Department of Fisheries and Oceans
Page : 138 pages
File Size : 32,60 MB
Release : 1993
Category : Fisheries
ISBN :
This study was initiated for the Inuvialuit, by the Fisheries Joint Management Committee (FJMC), to assess opportunities for commercial fishery development in the Canadian Beaufort Sea-Amundsen Gulf area. Reviews of existing knowledge did not find invertebrate or fish stocks in the area capable of sustaining a viable commercial export fishery. They found that coastal and offshore commercial fisheries in arctic Canada are severely constrained by environmental, social, and economic factors. Lacking a proven resource base, the FJMC has two recommended options if it plans to proceed with fishery development: 1 ) to conduct biological stock assessment research in hope of locating a suitable stock, and 2) to seek1 development opportunities in other areas such as sport fisheries. Before any commercial development proceeds, it should have local support, be sustainable, and optimize benefits to the Inuvialuit. Given the difficulty and cost of fishery research and development in the area, it is vital that interested parties such as the FJMC, government, and others formulate an overall research and development strategy and work cooperatively towards its completion. An approach to fishery development is described, with a discussion of constraining factors and specific project recommendations
Author : Keith F. Walker
Publisher :
Page : 862 pages
File Size : 36,8 MB
Release : 1957
Category : Biology
ISBN :
Author : Derek Armitage
Publisher : UBC Press
Page : 362 pages
File Size : 22,70 MB
Release : 2010-10-01
Category : Nature
ISBN : 0774859725
In Canada and around the world, new concerns with adaptive processes, feedback learning, and flexible partnerships are reshaping environmental governance. Meanwhile, ideas about collaboration and learning are converging around the idea of adaptive co-management. This book provides a comprehensive synthesis of the core concepts, strategies, and tools in this emerging field, informed by a diverse group of researchers and practitioners with over two decades of experience. It also offers a diverse set of case studies that reveal the challenges and implications of adaptive co-management thinking.
Author : John N. Rinne
Publisher :
Page : 636 pages
File Size : 25,64 MB
Release : 2005
Category : Nature
ISBN :
Dramatic changes have occurred in the functioning of larger rivers because of social values and policies, land use, inchannel causes, and alien species. These changes have resulted in the reduction in range and abundance of many native fish species. This book describes the historical changes observed in the fish assemblages of 27 large rivers in North, Central, and South America. A synthesizing chapter highlights common and distinct patterns among the rivers and their stressors. The book focuses on entire fish assemblages, including the many species that do not enter fisheries. It will be of interest to both fishery biologists and aquatic ecologists who are concerned with the status and trends in biodiversity and biointegrity. Contains historical information as well as new research and monitoring results, including research on metapopulations, genetics, and life history strategies.
Author : W. B. Griffiths
Publisher :
Page : 152 pages
File Size : 47,87 MB
Release : 1988
Category : Anadromous fishes
ISBN :
Study designed to produce a synthesis of the relevant information on the effects of causeways in the Prudhoe Bay/Sagavanirktok Delta region of Alaska and the Yukon coast, on the distribution, movement and population levels of anadromous fish.
