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Author: B‚n‚
Publisher: WorldFish
ISBN:
Category :
Languages : en
Pages : 117
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Book Description
Author: B‚n‚
Publisher: WorldFish
ISBN:
Category :
Languages : en
Pages : 117
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Fish habitat improvement
Languages : en
Pages : 342
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Book Description
Author: B.R. Allanson
Publisher: Springer Science & Business Media
ISBN: 9400923821
Category : Science
Languages : en
Pages : 461
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Book Description
Limnology - the study of inland waters - had its genesis in Europe about the turn of the century. The studies of Fore1 on Lake Geneva were of seminal value at this time. It prospered under the early guidance of Thienemann, Naumann and Wesenberg-Lund in Europe and, soon transplanted, of Birge and Juday in North America (to name just a few early spirits). Now, liminology is a respectable scientific discipline taught at many universities, and limnologists are recognized as important contributors to our understanding of how this fragile spaceship functions. All this acknowledged, it must also be acknowledged that limnology is not yet a globally comprehensive science. To be sure, much is known about globally applicable processes, and the structural elements of aquatic ecosystems worldwide, but limnological emphases, interests and concerns remain essentially European and North American in balance. Much is known about lakes and rivers in less than one fifth of the world's land area (northern temperature regions); rather little is known about inland waters elsewhere.
Author: P. A. van Zwieten
Publisher: Food & Agriculture Organization of the UN (FAO)
ISBN: 9789251067413
Category : Technology & Engineering
Languages : en
Pages : 168
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Book Description
A considerable quantity of data and information were collected on many aspects of the systems of the three reservoirs, including hydrological, biophysical and limnological features, primary production, and fish and fisheries data. This information was condensed and synthesized with the aim of providing a baseline against which the ecological changes that have taken place since impoundment can be described and analysed. Efforts are made to explain changes in fish catch in relation to climatic variations, ecological succession and fishing effort. The review shows that biological data and information are generally available. However, as is also common elsewhere, all three cases suffer from the general tendency to isolate and compartmentalize research into separate disciplines.
Author: Sena S. De Silva
Publisher: IDRC (International Development Research Centre)
ISBN:
Category : Nature
Languages : en
Pages : 266
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Book Description
Reservoir Fishery Management and Development in Asia
Author: S.E. Jorgensen
Publisher: Elsevier
ISBN: 0080535348
Category : Science
Languages : en
Pages : 514
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Book Description
Presents readers with an overview of lake management problems and the tools that can be applied to solve probelms. Lake management tools are presented in detail, including environmental technological methods, ecotechnological methods and the application of models to assess the best management strategy.
Author: V. V. Sugunan
Publisher: Food & Agriculture Org.
ISBN: 9789251036730
Category : Fish-culture
Languages : en
Pages : 438
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Book Description
The existing literature on limnology and fisheries of Indian reservoirs has been reviewed by covering more than 100 reservoirs located in various parts of the country. An assessment of environment-mediated production functions of reservoirs has been attempted. Since the ecosystem processes in reservoirs belonging to different geo-climatic regions exhibit wide variations depending on meteorological, morphometric and hydro-edaphic features of the impoundments, an effort has been made to gauge the influence of these abiotic variables on the production dynamics. Authentic information on water areas under different categories of reservoirs has been collected and interpreted in respect of all the Indian States. An attempt has also been made to resolve the anomalies pertaining to classification and nomenclature to the extent possible. Various fisheries management norms followed in the reservoirs of the country including the selection of species for stocking, stocking rate and introduction of exotic species have been reviewed. Indian reservoirs have been stocked with the Indo-Gangetic carps for many decades and the impact of this stocking has been assessed in terms of fish production and the indigenous faunistic diversity.
Author:
Publisher: WorldFish
ISBN:
Category :
Languages : en
Pages : 27
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Book Description
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9251092192
Category : Nature
Languages : en
Pages : 64
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Book Description
Drylands cover more than half sub-Saharan Africa and are home to nearly 50 percent of the region's people. This review documents resilience to climatic variability of fish resources in the sub-Saharan drylands. It also examines the potential for increasing their supply through improved use of available bodies of water, especially small reservoirs.
Author:
Publisher: WorldFish
ISBN:
Category :
Languages : en
Pages : 32
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Book Description
