Download or read book Duckweed Aquaculture written by Paul Skillicorn and published by World Bank Publications. This book was released on 1993 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Duckweed Aquaculture written by P. Skillicron and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Urban Aquaculture written by A. Desbonnet and published by CABI. This book was released on 2005-01-01 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Millions of people are moving from rural areas to coastal cities. Meeting the basic human needs for protein foods in the future will be a difficult challenge. Fishery products are the world's most important source of animal protein, which has led to a doubling of the demand for fish since the 1950s. As we can not expect to catch more food from the sea, we must turn to farming the waters, not just hunting them. The new challenge for planners now is to accelerate aquaculture development and to plan for new production, making urban areas of production, particularly recycled urban wastewater. This book includes papers from authors in the U.S., Europe, and Asia that review these developing issues from the perspective of both developed and developing countries.
Download or read book Performance and Process Analysis of Duckweed Covered Sewage Lagoons for High Strength Sewage the Case of Sana a Yemen written by Fadhi Al Nozaily and published by CRC Press. This book was released on 2000-01-01 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Duckweed (L.gibba)-covered sewage lagoons (DSLs) are low cost treatment systems, especially suitable for warm climates, or in lands where there are warm seasons. This study attempts to assess DSL system as a new technology, contributing to the understanding of the different mechanisms in the system. Duckweed-covered sewage lagoons could either replace complete wastewater stabilization ponds (WSPs) or be introduced as a second stage in an integrated WSP-DSL treatment system, which could then be used for purifying municipal wastewater, achieving suitable effluent for reuse in agriculture. The duckweed harvested from DSL systems has, in itself, an intrinsic economic value.
Download or read book The Duckweed Genomes written by Xuan Hieu Cao and published by Springer Nature. This book was released on 2020-01-07 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book tells the story behind the first Spirodela genome sequencing project. Further, it describes the current genomics applications of these findings, and efforts to sequence new genomes within the family. The closing chapters address the sequencing of the over 1 Gigabase Wolffia genomes, which could have major impacts on genome evolution and agricultural research. The duckweed or Lemnaceae family is a collection of 5 genera and 37 species of the smallest, fastest-growing flowering plants. Many of these aquatic monocotyledonous plants can grow all over the world, in a variety of climates. Given their simplified and neotenous morphology, duckweeds have been researched for several decades as a model species for plant physiology and ecotoxicological research, contributing to our understanding e.g. of flowering response, plant circadian systems, sulfur assimilation pathways and auxin biosynthesis. In addition, duckweed-based treatment has been a favorite and feasible means, especially in developing countries, of removing phosphorus and pharmaceutical chemicals from sewage and wastewater. With a dry annual mass yield per hectare of up to 80 tonnes (equivalent to 10 tonnes of protein), duckweed is also a promising aquatic crop in new modern and sustainable agriculture. Besides being an excellent primary or supplemental feedstock for the production of livestock and fish, duckweed biomass can be utilized as a potential resource for human nutrition, biofuel, or bioplastics, depending on water quality as well as protein or starch accumulating procedures. These academic and commercial interests have led to international efforts to sequence the Spirodela polyrhiza genome, the smallest and most ancient genome in the family.
Download or read book Duckweed Profitable Feed for Tilapia Farming written by Maximus Basco and published by CreateSpace. This book was released on 2012-12-11 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tilapia Feed - Duckweed is a tiny aquatic plant covering stagnant water bodies; it's seen in channels and waterways in semi-tropical and tropical climates in most countries. The green, three rounds fronds plant, or any of its four genera is known to many people who have seen it without realizing such aquatic plant is Duckweed or that such an abundant microphyte plant, considered an invasive plant, offers a great potential as animal feed, specially for fish. Its high level of protein content makes it an ideal fish feed for Tilapia, Carp and possibly other fish as well with great potential savings as fish feed. Duckweeds have structural features that have been simplified by natural selection. A Duckweed leaf is flat and ovoid. Many species have adventitious roots which function as a stability organ and which tend to lengthen as mineral nutrients in water are exhausted. Compared with most plants, Duckweed leaves have little fiber (5% in dry matter of cultivated plants) as they do not need to support upright structures. As a result the plant has little or no indigestible material even for monogastric animals like fish. This contrasts with many crops such as soya beans, rice, or maize, where approximately 50% of the biomass is in the form of high fiber, and low digestibility residues. Their unique properties, such as their phenomenal growth rate, it doubles its size every twenty-four (24) hours or so, offers great potential savings for the animal grower. Its high protein content, its ability to clean wastewater and growth quickly even in brackish water, have been investigated and documented in the last ten years. This manual intends to propagate the value of Duckweed as a food alternative to animal growth, focusing this intent on fish farming, where its potential impact will be recognized immediately by a savvy fish farmers for many reasons discussed here. In the last two decades Duckweed has been investigated for commercial applications seeking to treat wastewater by American firms; mainly by the PRISM Group which pioneered Duckweed farming in India and Peru. Both investigative programs in South Asia and Latin America, suggested that Duckweed cropping would be important as a source of fish and poultry feed; additionally the investigation demonstrated the use of Duckweed as a wastewater treatment alternative. This Technical Study for Latin America and Asia was designed to put together relevant information on Duckweed farming, its beneficial uses and to make such information available to people worldwide. The information in this technical manual comes from many sources; the contribution of the staff at the experimental station in Bangladesh and its directors, Harinder S. Kohli and Mohammed Ikramullah, are acknowledged. Paul Skillicorn and William Spira of the PRISM Group, and William Journey. Viet Ngo of the Lemna Corporation and Richard Middleton of Kalbermatten Associates are given recognition here. Others recognized for this important technical work ar Grimshaw, Khouri, Leeuwrik, van Santen and Macoun. Professor Thomas Popma of the International Center for Aquaculture at Auburn University provided technical support.
Download or read book Principles of Sustainable Aquaculture written by Stuart W. Bunting and published by Taylor & Francis. This book was released on 2024-03-29 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an introduction to sustainable aquaculture practices, focusing on how we develop social, economic and environmental resilience. Aquaculture has seen phenomenal worldwide growth in the past 50 years, and many people view it as the best solution for the provision of high-quality protein to feed the world's growing population. This new edition has been fully revised and updated to reflect new developments in the field and includes new case studies. Focusing on developing more sustainable aquaculture practices and aquatic food systems, the book provides a toolbox of approaches to support widespread adoption and appropriate adaptation of regenerating aquaculture strategies, ensuring that it has practical relevance for both students and professionals. Drawing on a range of case studies from around the world, the book shows where progress, in terms of developing ecologically sound and socially responsible forms of aquaculture, has been made. The book is based on extensive evidence and knowledge of best practices, with guidance on appropriate adaptation and uptake in a variety of environmental, geographic, socio-economic and political settings. Concentrating on low-impact aquaculture systems and approaches, which have minimal adverse effects on the environment, the book also emphasizes socially responsible and equitable aquaculture development to enhance the natural resource base and livelihoods. Principles of Sustainable Aquaculture is essential reading for students and scholars of aquaculture, fisheries, marine and water resource governance, and sustainable agriculture and sustainable food systems more broadly. It will also be of interest to professionals working in the aquaculture and fisheries industries.
Download or read book Nutrients Valorisation Via Duckweed based Wastewater Treatment and Aquaculture written by Saber Abdel-Aziz Abdel-Salam Mohamed El-Shafai and published by . This book was released on 2004 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Resources Development and Management written by and published by Mittal Publications. This book was released on 2004 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Papers In The Volume Arise From The Second International Conference On The Subject Held In 2002. Papers Are Grouped Under 5 Chapters-Ground Water Development And Management Drinking Water Supply And Management-Watershed Development-Water Resources Management-Agriculture Development And Conservation And Management Of Water Resources For Sustainable Development. In All There Are 28 Papers.
Download or read book Aquaculture written by Deborah T. Hanfman and published by . This book was released on 1993 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aquaculture written by John S. Lucas and published by John Wiley & Sons. This book was released on 2012-01-30 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: The output from world aquaculture, a multi-billion dollar global industry, continues to rise at a very rapid rate and it is now acknowledged that it will take over from fisheries to become the main source of animal and plant products from aquatic environments in the future. Since the first edition of this excellent and successful book was published, the aquaculture industry has continued to expand at a massive rate globally and has seen huge advances across its many and diverse facets. This new edition of Aquaculture: Farming Aquatic Animals and Plants covers all major aspects of the culture of fish, shellfish and algae in freshwater and marine environments. Subject areas covered include principles, water quality, environmental impacts of aquaculture, desert aquaculture, reproduction, life cycles and growth, genetics and stock improvement, nutrition and feed production, diseases, vaccination, post-harvest technology, economics and marketing, and future developments of aquaculture. Separate chapters also cover the culture of algae, carps, salmonids, tilapias, channel catfish, marine and brackish fishes, soft-shelled turtles, marine shrimp, mitten crabs and other decapod crustaceans, bivalves, gastropods, and ornamentals. There is greater coverage of aquaculture in China in this new edition, reflecting China's importance in the world scene. For many, Aquaculture: Farming Aquatic Animals and Plants is now the book of choice, as a recommended text for students and as a concise reference for those working or entering into the industry. Providing core scientific and commercially useful information, and written by around 30 internationally-known and respected authors, this expanded and fully updated new edition of Aquaculture is a book that is essential reading for all students and professionals studying and working in aquaculture. Fish farmers, hatchery managers and all those supplying the aquaculture industry, including personnel within equipment and feed manufacturing companies, will find a great deal of commercially useful information within this important and now established book. Reviews of the First Edition "This exciting, new and comprehensive book covers all major aspects of the aquaculture of fish, shellfish and algae in freshwater and marine environments including nutrition and feed production." —International Aquafeed "Do we really need yet another book about aquaculture? As far as this 502-page work goes, the answer is a resounding 'yes'. This book will definitely find a place in university libraries, in the offices of policy-makers and with economists looking for production and marketing figures. Fish farmers can benefit greatly from the thematic chapters, as well as from those pertaining to the specific plant or animal they are keeping or intending to farm. Also, they may explore new species, using the wealth of information supplied." —African Journal of Aquatic Science "Anyone studying the subject or working in any way interested in aquaculture would be well advised to acquire and study this wide-ranging book. One of the real 'bibles' on the aquaculture industry." —Fishing Boat World and also Ausmarine
Download or read book Aquaculture Systems for Wastewater Treatment written by Robert K. Bastian and published by . This book was released on 1979 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coldwater Fisheries and Aquaculture Management written by Mohd Ashraf Rather and published by CRC Press. This book was released on 2023-12-01 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a rich resource of important information on coldwater fish farming and coldwater fisheries management, including new research and recent technological advances. It aims to provide an understanding of the underlying mechanisms of coldwater physiology of fishes, which is essential for effective fishery management and for taking advantage of their vast potential application in aquaculture. Coldwater Fisheries and Aquaculture Management: Technology for Sustainable Food Production elaborates on key aspects associated with reproductive biology and endocrinology of coldwater fishes, such as gonadal development and maturation, vitellogenesis, steroidogenesis, whole genome information of fishes, transcriptomics, proteomics, and more. It also looks at genetic modification of coldwater fishes, phytobiotic-based feed to attain profitability in aquaculture, and the nutritional requirements of coldwater fishes, such as plant-based proteins in fish diets and feeding carbohydrates to fish. It also describes the beneficial dietary nutrition of fish consumption by humans. Several chapters address the various challenges to coldwater fish and fishery management, such as fish bacterial diseases (along with their immune components and defense mechanisms), unpredictable nature of climate change on fish, water pollution, etc. The volume also offers strategies on the sustainable management of fish that include looking at pollution in freshwater ecosystems, biotechnological interventions, predicting threats to fish from climate change, and other factors. This volume will be of value to those in fishery management and fish science as well as to marine researchers, faculty and students, and other involved with aquaculture science and management.
Download or read book Detritus and Microbial Ecology in Aquaculture written by D. J. W. Moriarty and published by WorldFish. This book was released on 1987-01-01 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sustainable Aquaculture written by Carl D Webster and published by CRC Press. This book was released on 2003-08-04 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examine the world's leading aquaculture producers! Sustainable Aquaculture: Global Perspectives is a one-of-a-kind primer on the world's leading sources of aquatic production, presenting expert commentary that includes the latest advancements, developments, and research findings. The book examines essential elements of aquaculture (water quality, nutrition, genetics, culture methods) and addresses problems such as over-fishing, coastal and wetland destruction, and habitat and environmental degradation. Sustainable Aquaculture: Global Perspectives addresses policy measures that are essential for the long-term sustainability of the world's fisheries—and the long-term employment of those who rely on the aquaculture industry for their livelihood. As the world's population increases at an alarming rate, the question of how to ensure global food security is one of extreme importance. But the world's total yield is below expectations and the book examines the reasons why: the under-utilization of natural resources, the lack of adoption of modern scientific methods, the lack of standardized, proven pond fertilization protocols; long-term inbreeding and the loss of genetic variability due to genetic drift. Sustainable Aquaculture: Global Perspectives also addresses: freshwater pearl culture breeding programs pond fertilization regimes fish diseases in tropical climates indoor recirculating culture systems water quality management for shrimp farming and much more! With much of its information available in one place for the first time, Sustainable Aquaculture: Global Perspectives is invaluable as a textbook for introductory aquaculture courses and is an essential resource for professionals and researchers.
Download or read book Nitrogen Transformations and Removal Mechanisms in Algal and Duckweed Waste Stabilisation Ponds written by Omar Zimmo and published by CRC Press. This book was released on 2003-01-01 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effective treatment of nitrogen containing wastewater is required to prevent eutrophication and groundwater pollution. This thesis shows that effective treatment may be combined with substantial nitrogen recovery in duckweed-based waste stabilization ponds.
Download or read book Effect of Operational Variables on Nitrogen Transformations in Duckweed Stabilization Ponds written by Julia Rosa Caicedo Bejarano and published by CRC Press. This book was released on 2005-03-24 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is an urgent need to develop and improve low cost technologies for wastewater treatment. Simultaneously treating wastewater and producing duckweed in a pond system is, therefore, an attractive solution contributing to both environmental protection and food production. Duckweed has excellent qualities: a high protein content, a high growth rate and is an easy crop to handle. The small plant turns nitrogen from wastewater into a food source. This thesis reports on the effect of different operational variables, like anaerobic pre-treatment, the combination of algae and duckweed ponds and pond depth. Improved nitrogen removal was obtained through the combination of duckweed ponds with algae ponds. Duckweed pond systems could be designed with shallow depth without affecting nitrogen removal efficiency. This research is the result of the cooperative effort between the EIDENAR, Univalle, Cali, Colombia and the UNESCO-IHE Institute for Water Education in Delft, the Netherlands.
