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Author : Alexander J. P. Raat,Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
Page : 192 pages
File Size : 40,6 Mb
Release : 1988
Category : Science
ISBN : 9251026564
Author : Christian Skov,P. Anders Nilsson
Publisher : CRC Press
Page : 411 pages
File Size : 51,8 Mb
Release : 2018-01-09
Category : Nature
ISBN : 9781482262926
This book sets out to bridge the order scales among pike researchers, populations, communities, management, and fisheries. It emphasizes the progress of pike research during the last two decades, during which the order-bridging approach emerged. This framework underpins the text and the message, to convey its importance to pike research and to fish research in general. In addition, a considerable part of the book is devoted to management implications and highlights aspects of human dimensions in recreational fisheries.
Author : Thomas J. Hassler
Publisher : Unknown
Page : 14 pages
File Size : 48,8 Mb
Release : 1969
Category : Pike
ISBN : UOM:39015095286749
Variations in length, weight, and maturity of northern pike in Oahe Reservoir were associated with sex and year class. Females were larger and more numerous than males. Catches were dominated by the 1959 and 1962 year classes; the 1964 year class was missing. Annulus formation began in April and was completed by July. SInce impoundment, large year classes have been associated with a rise in water level above previous high levels in spring and continuation of the higher level though early summer.
Author : S. Jones
Publisher : Unknown
Page : 298 pages
File Size : 47,7 Mb
Release : 1965
Category : Atlantic mackerel
ISBN : UCSD:31822008792533
Author : J. Craig
Publisher : Springer Science & Business Media
Page : 311 pages
File Size : 49,6 Mb
Release : 2013-03-14
Category : Science
ISBN : 9789401587754
Pike and related fish form an important part of aquatic ecosystems and are also commercially very valuable. This title provides full coverage of the biology, ecology and exploitation of this important group of fish and will be invaluable for fisheries scientists, fish biologists, aquatic scientists, ecologists and environmental scientists.
Author : Anonim
Publisher : Unknown
Page : 1440 pages
File Size : 42,7 Mb
Release : 2006
Category : Electronic
ISBN : NWU:35556036858744
Author : Patrick Safran
Publisher : EOLSS Publications
Page : 472 pages
File Size : 47,6 Mb
Release : 2009-10-27
Category : Electronic
ISBN : 9781848261105
Fisheries and Aquaculture theme is a component of Encyclopedia of Food and Agricultural Sciences, Engineering and Technology Resources in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. Fisheries are a major life support system and the main purpose of this theme on Fisheries and Aquaculture is to provide baseline information and latest knowledge at the dawn of this century to facilitate vital fisheries recovery before their irreparable collapse. This Theme on Fisheries and Aquaculture is divided into five topics. It starts with discussions on major issues and challenges in “Harvesting the Seas”, with emphasis on the role and importance of the fisheries sector and its environment, and introduces trends and perspectives in marine fisheries, including allocation of use rights, subsidies, and port management. The next two topics present an in-depth and detailed knowledge on fish and other aquatic living resources that are commercially exploited and/or farmed. The third topic on Inland Fisheries presents salmonid fish, eels, shad, whitefish and smelt, carp, perch, pike and bass, tilapia, frog, and crustaceans. The fourth topic presents a comprehensive review of trends and perspectives in Aquaculture: Principles and Prospects. The fifth topic on Economics of Fisheries and Aquaculture reviews the latest views and concepts useful to apprehend the fisheries management regime, including a comparative static economic theory and a dynamic theory of fishery, spatial bioeconomic dynamics and role of international law in the management of marine fisheries, rights-based and community fisheries management, aquaculture economics, and game theory and fisheries. These five volumes are aimed at the following five major target audiences: University and College Students Educators, Professional Practitioners, Research Personnel and Policy Analysts, Managers, and Decision Makers, NGOs and GOs.
Author : Melvin L. Warren, Jr.,Brooks M. Burr
Publisher : Johns Hopkins University Press
Page : 934 pages
File Size : 43,5 Mb
Release : 2020-07-14
Category : Science
ISBN : 9781421435121
H. Wilson
Author : Tim M. Berra
Publisher : University of Chicago Press
Page : 615 pages
File Size : 55,8 Mb
Release : 2008-09-15
Category : Science
ISBN : 9780226044439
With more than 29,000 species, fishes are the most diverse group of vertebrates on the planet. Of that number, more than 12,000 species are found in freshwater ecosystems, which occupy less than 1 percent of the Earth’s surface and contain only 2.4 percent of plant and animal species. But, on a hectare-for-hectare basis, freshwater ecosystems are richer in species than more extensive terrestrial and marine habitats. Examination of the distribution patterns of fishes in these fresh waters reveals much about continental movements and climate changes and has long been critical to biogeographical studies and research in ecology and evolution. Tim Berra’s seminal resource, Freshwater Fish Distribution,maps the 169 fish families that swim in fresh water around the world. Each family account includes the class, subclass, and order; a pronunciation guide to the family name; life cycle information; and interesting natural history facts. Each account is illustrated, many with historical nineteenth-century woodcuts. Now available in paperback, this heavily cited work in ichthyology and biogeography will serve as a reference for students, a research support for professors, and a helpful guide to tropical fish hobbyists and anglers.
Author : Robert Arlinghaus
Publisher : Turnshare Ltd. - Publisher
Page : 385 pages
File Size : 50,8 Mb
Release : 2004
Category : Fishery management
ISBN : 9781903343364
Author : Environmental Science Information Center. Library and Information Services Division
Publisher : Unknown
Page : 516 pages
File Size : 53,5 Mb
Release : 1977
Category : Electronic
ISBN : IND:30000105034932
Author : Environmental Science Information Center. Library and Information Services Division
Publisher : Unknown
Page : 512 pages
File Size : 47,7 Mb
Release : 1977
Category : Book catalogs
ISBN : MINN:30000010404568
Author : Ramesh D. Gulati,E.H.R.R. Lammens,M.-L. Meyer,E. van Donk
Publisher : Springer Science & Business Media
Page : 613 pages
File Size : 41,5 Mb
Release : 2013-03-09
Category : Science
ISBN : 9789401709248
Author : E. Mortensen,E. Jeppesen,M Søndergaard,L. Kamp Nielsen
Publisher : Springer Science & Business Media
Page : 500 pages
File Size : 42,5 Mb
Release : 2013-03-09
Category : Science
ISBN : 9789401724609
The nutrient dynamics and biological structure of shallow non-stratified lakes differ markedly from that of deep and stratified lakes: for example, the return of nutrients lost through sedimentation is faster and the potential importance of fish and submerged macrophytes as food-web regulators is greater. In addition shallow lakes are more easily influenced by fluctuations in the physical environment caused by wind disturbance, temperature change, etc. Although shallow lakes are often the most common lake type in lowland countries, less attention has been paid to them than to deep stratified lakes and few comparisons have been made between shallow freshwater and brackish lakes. The volume is divided into five main themes, each introduced by an invited speaker: Nutrient dynamics with special emphasis on sediment water interactions and changes in loading (Professor Lambertus Lyklema); Biological structure and trophic interaction (Professor Stephen T. Threlkeld); Submerged macrophytes: dynamics and role in the lake ecosystems (Ass. Professor Kaj Sand Jensen); Comparison of freshwater and brackish lake ecosystems (Professor Brian Moss); Modelling the impact of nutrients, the biological structure and the recovery process (Dr Marten Scheffer).
Author : Environmental Science Information Center. Library and Information Services Division
Publisher : Unknown
Page : 578 pages
File Size : 46,5 Mb
Release : 1977
Category : Earth sciences
ISBN : UOM:39015007489944
