Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download Small Water Bodies And Their Fisheries In Southern Africa full books in PDF, epub, and Kindle. Read online Small Water Bodies And Their Fisheries In Southern Africa ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author : B. E. Marshall
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251036471
Total Pages : 80 pages
Book Rating : 4.0/5 (364 download)
Download or read book Small Water Bodies and Their Fisheries in Southern Africa written by B. E. Marshall and published by Food & Agriculture Org.. This book was released on 1994 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : V. V. Sugunan
Publisher :
ISBN 13 :
Total Pages : 160 pages
Book Rating : 4.:/5 (319 download)
Download or read book Fisheries Management of Small Water Bodies in Seven Countries in Africa, Asia and Latin America written by V. V. Sugunan and published by . This book was released on 1997 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H. W. van der Mheen
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251036396
Total Pages : 52 pages
Book Rating : 4.0/5 (363 download)
Download or read book Practical Aspects of Stocking Small Water Bodies written by H. W. van der Mheen and published by Food & Agriculture Org.. This book was released on 1994 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H. W. van der Mheen
Publisher :
ISBN 13 :
Total Pages : 396 pages
Book Rating : 4.:/5 (31 download)
Download or read book Practical Aspects of Stocking Small Water Bodies written by H. W. van der Mheen and published by . This book was released on 1972 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John F. Craig
Publisher : John Wiley & Sons
ISBN 13 : 1118394402
Total Pages : 920 pages
Book Rating : 4.1/5 (183 download)
Download or read book Freshwater Fisheries Ecology written by John F. Craig and published by John Wiley & Sons. This book was released on 2016-01-12 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inland fisheries are vital for the livelihoods and food resources of humans worldwide but their importance is underestimated, probably because large numbers of small, local operators are involved. Freshwater Fisheries Ecology defines what we have globally, what we are going to lose and mitigate for, and what, given the right tools, we can save. To estimate potential production, the dynamics of freshwater ecosystems (rivers, lakes and estuaries) need to be understood. These dynamics are diverse, as are the earths freshwater fisheries resources (from boreal to tropical regions), and these influence how fisheries are both utilized and abused. Three main types of fisheries are illustrated within the book: artisanal, commercial and recreational, and the tools which have evolved for fisheries governance and management, including assessment methods, are described. The book also covers in detail fisheries development, providing information on improving fisheries through environmental and habitat evaluation, enhancement and rehabilitation, aquaculture, genetically modified fishes and sustainability. The book thoroughly reviews the negative impacts on fisheries including excessive harvesting, climate change, toxicology, impoundments, barriers and abstractions, non-native species and eutrophication. Finally, key areas of future research are outlined. Freshwater Fisheries Ecology is truly a landmark publication, containing contributions from over 100 leading experts and supported by the Fisheries Society of the British Isles. The global approach makes this book essential reading for fish biologists, fisheries scientists and ecologists and upper level students in these disciplines. Libraries in all universities and research establishments where biological and fisheries sciences are studied and taught should have multiple copies of this hugely valuable resource. About the Editor John Craig is Editor-in-Chief of the Journal of Fish Biology and has an enormous range of expertise and a wealth of knowledge of freshwater fishes and their ecology, having studied them around the globe, including in Asia, North America, Africa, the Middle East and Europe. His particular interests have been in population dynamics and life history strategies. He is a Fellow of the Linnean Society of London and the Royal Society of Biology.
Author : Philip Townsley
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251038710
Total Pages : 124 pages
Book Rating : 4.0/5 (387 download)
Download or read book Rapid Rural Appraisal, Participatory Rural Appraisal and Aquaculture written by Philip Townsley and published by Food & Agriculture Org.. This book was released on 1996 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document is intended for aquaculture development specialists, aquaculture project managers and officials and specialists involved in the planning and management of aquaculture activities. it provides an introduction to rapid rural appraisal and participatory rural appraisal for people working in these fields. the principal components of these two approaches to information collection and planning are described together with the various tools used, with a case-study to illustrate their uses and some of the issues they raise. Possible applications of the approaches for those involved in aquaculture development are given and an outline is provided of the kinds of planning and institutional context where they can be best applied. The problems and shortcomings of the approaches are also discussed and guidelines are given for the use of alternative approaches to information gathering and planning.
Author : Michael N. Bruton
Publisher :
ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.:/5 (318 download)
Download or read book Pocket Guide to the Freshwater Fishes of Southern Africa written by Michael N. Bruton and published by . This book was released on 1982 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
ISBN 13 : 9251308136
Total Pages : 128 pages
Book Rating : 4.2/5 (513 download)
Download or read book Freshwater small pelagic fish and their fisheries in the major African lakes and reservoirs in relation to food security and nutrition written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2019-02-01 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Small pelagic fish species found in lakes and introduced to reservoirs dominate by volume and contribute some of the most important inland fisheries in Africa with steadily increasing catches and additional potential. This circular reviews the status and importance of the pelagic fish and fisheries, together with small fish in general, for sustainable and healthy livelihoods in Africa. It reviews the biology and biological production of the most important pelagic species in lakes and reservoirs as well as the impacts of environmental and climatic variation on the stocks of these species. It examines and discuss the various capture techniques together with potential of improvements in the fisheries and associated processing and national and regional trade within Africa. The knowledge generated by the circular will be useful for policy makers and development practitioners to design and implement more effective policies, strategies and programs that will contribute to reducing the food insecurity and conflicts that currently affect the people in sub-Saharan Africa.
Author : Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
ISBN 13 : 9251092192
Total Pages : 64 pages
Book Rating : 4.2/5 (51 download)
Download or read book FISHERIES IN THE DRYLANDS OF SUB-SAHARAN AFRICA written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-11-08 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Southern African Development Community
Publisher : Southern African Research and Documentation Centre
ISBN 13 :
Total Pages : 274 pages
Book Rating : 4.F/5 ( download)
Download or read book Water in Southern Africa written by Southern African Development Community and published by Southern African Research and Documentation Centre. This book was released on 1996 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251039717
Total Pages : 52 pages
Book Rating : 4.0/5 (397 download)
Download or read book Aquaculture Development written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 1997 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides annotations to the Principles of Article 9 of the Code of Conduct for Responsible Fisheries. These annotations are meant to serve as general guidance, and should be taken as suggestions or observations intended to assist those interested in identifying their own criteria and options for actions, as well as partners for collaboration, in support of sustainable aquaculture development.
Author : Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251050323
Total Pages : 280 pages
Book Rating : 4.0/5 (53 download)
Download or read book Management, Co-management, Or No Management? written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2003 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication contains reports of ten case studies of freshwater fisheries in southern Africa which were conducted in five medium-sized lakes in the Democratic Republic of the Congo, Malawi, Zambia and Zimbabwe. Five of the case studies focus on the biological and environmental effects of fishing while the remaining five are concerned with historical and sociological analysis.
Author : Terje Tvedt
Publisher : Bloomsbury Publishing
ISBN 13 : 178673138X
Total Pages : 592 pages
Book Rating : 4.7/5 (867 download)
Download or read book A History of Water: Series III, Volume 3 written by Terje Tvedt and published by Bloomsbury Publishing. This book was released on 2016-08-31 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Major changes in policy and management , across the entire agricultural production chain, will be needed to ensure the best use of available water resources in meeting growing demands for food and other agricultural products. This new volume in the successful History of Water Series focuses on the African continent to address this key issue. Humanity has its roots in Africa and many of our food systems developed there. All types of agricultural production are present and the sheer size of the continent offers wide ecological variation from extreme desert to dense rainforest. Drawing together leading international contributors from a wide variety of disciplines Water and Food offers new insights into the evolution of food systems, from early hunter gatherers to the global challenges of the modern world.
Author : José Aguilar-Manjarrez
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251041390
Total Pages : 196 pages
Book Rating : 4.0/5 (413 download)
Download or read book A Strategic Reassessment of Fish Farming Potential in Africa written by José Aguilar-Manjarrez and published by Food & Agriculture Org.. This book was released on 1998 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: "(Reprint. First published in 1998) The present study is an update of an earlier assessment of warm-water fish farming potential in Africa, by Kapetsky (1994). The objective of this study was to assess locations and areal expanses that have potential for warm-water and temperate-water fish farming in continental Africa. The study was based on previous estimates for Africa by the above author, and on estimates of potential for warm-water and temperate-water fish farming in Latin America by Kapetsky and Nath (1997). However, a number of refinements have been made. The most important refinement was that new data allowed a sevenfold increase in resolution over that used in the previous Africa study, and a twofold increase over that of Latin America (i.e. to 3 arc minutes, equivalent to 5 km x 5 km grids at the equator), making the present results more usable in order to assess fish farming potential at the national level. A geographical information system (GIS) was used to evaluate each grid cell on the basis of several land-quality factors important for fish-farm development and operation regardless of the fish species used. Protected areas, large inland water bodies and major cities were identified as constraint areas, and were excluded from any fish farming development altogether. Small-scale fish farming potential was assessed on the basis of four factors: water requirement from ponds due to evaporation and seepage, soil and terrain suitability for pond construction based on a variety of soil attributes and slopes, availability of livestock wastes and agricultural by-products as feed inputs based on manure and crop potential, and farm-gate sales as a function of population density. For commercial farming, an urban market potential criterion was added based on population size of urban centres and travel time proximity. Both small-scale and commercial models were developed by weighting the above factors using a multi-criteria decision-making procedure. A bioenergetics model was incorporated into the GIS to predict, for the first time, fish yields across Africa. A gridded water temperature data set was used as input to a bioenergetics model to predict number of crops per year for the following three species: Nile tilapia (Oreochromis niloticus), African catfish (Clarias gariepinus) and Common carp (Cyprinus carpio). Similar analytical approaches to those by Kapetsky and Nath (1997) were followed in the yield estimation. However, different specifications were used for small-scale and commercial farming scenarios in order to reflect the types of culture practices found in Africa. Moreover, the fish growth simulation model, documented in Kapetsky and Nath (1997), was refined to enable consideration of feed quality and high fish biomass in ponds. The small-scale and commercial models derived from the land-quality evaluation were combined with the yield potential of each grid cell for each of the three fish species to show the coincidence of each land-quality suitability class with a range of yield potentials. Finally, the land quality-fish yield potential combinations were put together to show where the fish farming potential coincided for the three fish species."
Author : Rudy van der Elst
Publisher : Penguin Random House South Africa
ISBN 13 : 1775848264
Total Pages : 70 pages
Book Rating : 4.7/5 (758 download)
Download or read book Sasol First Field Guide to Fishes of Southern Africa written by Rudy van der Elst and published by Penguin Random House South Africa. This book was released on 2022-01-01 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sasol First Field Guide to Fishes of Southern Africa is a beginner’s guide to the more common fishes of the region, and covers both marine and freshwater species. Full-colour photographs, distribution maps and easy-to-read text will help enthusiasts and budding naturalists to identify the more common fishes in southern Africa, discover where they are found and learn about their unique behaviour, reproduction, conservation status and unusual features. A brief introduction gives context to the topic, outlines points of importance and explains the structure of the book. Sales points: straightforward introductory guide to the region’s fishes; suitable for both adult and younger enthusiasts; informative, uncomplicated text written for beginners; useful introductory section; full-colour photographs of each fish; compact enough for ease of use in the field.
Author : Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251046944
Total Pages : 180 pages
Book Rating : 4.0/5 (469 download)
Download or read book Dams, Fish and Fisheries written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2001 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of free longitudinal passage of river fauna is stressed.
Author : B.R. Allanson
Publisher : Springer Science & Business Media
ISBN 13 : 9400923821
Total Pages : 461 pages
Book Rating : 4.4/5 (9 download)
Download or read book Inland Waters of Southern Africa: An Ecological Perspective written by B.R. Allanson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
