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Author: United States. Office of the Assistant Secretary of the Army (Civil Works)
Publisher:
ISBN:
Category : Borgne, Lake (La.)
Languages : en
Pages : 1762
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Book Description
Author: United States. Office of the Assistant Secretary of the Army (Civil Works)
Publisher:
ISBN:
Category : Borgne, Lake (La.)
Languages : en
Pages : 1762
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Book Description
Author: Jean Munro
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 438
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Book Description
Because of their threatened status, sturgeons have been the focus of broad scientific interest. This book provides new information on freshwater, estuarine, and marine habitats of anadromous sturgeons; examines threats to habitats and populations; and reviews management and population trends in light of progress on recovery of U.S. Atlantic sturgeon populations since fishing was banned.
Author: United States. General Accounting Office
Publisher:
ISBN:
Category : Liquefied gases
Languages : en
Pages : 184
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Book Description
Author: Samuel Frederick Hildebrand
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 424
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Book Description
Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 1000
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Book Description
Author:
Publisher:
ISBN:
Category : Canals
Languages : en
Pages : 24
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Book Description
Author: Tetsuya Kusuda
Publisher: World Scientific
ISBN: 981428095X
Category : Technology & Engineering
Languages : en
Pages : 192
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Book Description
The Yellow River basin, located in the semi-arid and arid climate zones in northern China is confronted with serious problems of water deficit as well as water pollution. Due to increasing population levels, rising living standards, increasing pressure of expanding irrigation areas and developing industries in the basin, efficient water resource allocation has become a pressing issue here. On the surface it appears to be domestic, but in reality the problem is one of international proportions because it may impact other countries through trade. Development in the basin is restricted by acute water shortage, salinity damage and pollution. There are many scenarios for the allocation of water resources. One extreme is industry-oriented and the other is agriculture-oriented. The allocation between upstream and downstream is also another issue. In order to understand the current state of water resources in the basin and to provide a way of thinking about the issues, this book systematically explains the methods of modeling, mechanism of water circulation on each element and several technologies for water saving. It also introduces cutting-edge research results of the five-year project "improving the sustainability in utilizing and controlling water in the Yellow River basin" sponsored by Japan Science and Technology Corporation (JST).
Author: Martyn Lucas
Publisher: John Wiley & Sons
ISBN: 0470999640
Category : Technology & Engineering
Languages : en
Pages : 440
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Book Description
Recent studies have increasingly demonstrated the widespread existence of spatio-temporal variations in the abundance and distribution of species of freshwater fishes, previously assumed not to move between habitats. These movements are often on a seasonal or ontogenetic basis, for spawning, feeding and refuge, and in many cases are fundamental for the successful completion of lifecycles. This important book provides a single source for a range of previously widely dispersed information on these movements of fish in fresh waters, covering potamodromous fishes as well as the more familiar diadromous species, worldwide. Contents include full descriptions of types of migration and spatial behaviour, the stimulus and capacity for fish to migrate, the effects of climate on patterns of migratory behaviour, a taxonomic analysis (mostly by family) of freshwater fish migration, methods for studying migration, and details of the impacts of man's activities on freshwater fish migration. Migration of Freshwater Fishes provides an excellent and comprehensive reference to which the river manager, biologist or student can now refer to obtain information, advice and current opinion on the migratory behaviour of most taxonomic groups of fishes occurring in fresh water. University libraries and aquatic research stations should also have copies of this essential reference book on their shelves. Well-known international authors. Of great commercial importance to fisheries and professional angling bodies. Draws together much new information in one place. Detailed review of world wide migratory behaviour for most groups of freshwater fishes. Pure and applied relevance, for academics, fisheries scientists, river managers and conservationists. This comprehensive book includes 67 tables and figures and over 1,400 references.
Author: Vadim J. Birstein
Publisher: Springer Science & Business Media
ISBN: 0792345177
Category : Nature
Languages : en
Pages : 444
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Book Description
This volume presents a synthesis of basic biological and conservation data for more than 30 species of sturgeons (Acipenseridae), paddlefishes (Polyodontidae) and their fossil allies in the order Acipenseriformes. Since the Jurassic, the four families of sturgeon-like fish have been restricted to the Holarctic, where until very recently they flourished in most major river systems. Today, however, virtually all species of sturgeons and paddlefishes face difficult conservation issues. Papers in the first section of this volume examine paleontology, systematics, evolution and basic biology of Acipenseriformes. The second section of this volume details current conservation status for most of the world's living species of Acipenseriformes. These papers mark the first attempt to make such a global review of recent data from across the northern hemisphere. The emerging picture is discouraging, for negative anthropogenic impacts range from overfishing to water pollution, to dams and water diversion projects, and all species are threatened to some degree. The third section of the volume considers specific human impacts and responses to conservation issues. These include: the Aral Sea ecological disaster and its impact on native sturgeons; a review of methods for restoring sturgeon populations; the use of molecular techniques in developing conservation strategies; the extreme sensitivity of sturgeons and paddlefishes to overfishing; and the history of a recently convicted caviar poaching ring. The volume's summary reviews the status of all extant species and notes future directions for research on behavior, ecology and population biology that could lead to better co-ordinated international conservation efforts.
Author: F.P. Binkowski
Publisher: Springer
ISBN: 9061935393
Category : Science
Languages : en
Pages : 157
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Book Description
Proceedings from a Symposium on Biology and Management of Sturgeon, held during the 113th Annual Meeting of American Fisheries Society at Milwaukee, Wisconsin, USA, August 16-20, 1983
