Download or read book Use of Genetically Improved and Alien Species for Aquaculture and Conservation of Aquatic Biodiversity in Africa written by Modadugu V. Gupta and published by WorldFish. This book was released on 2004 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Risk Assessment of Genetically Modified Organisms written by K.R. Hayes and published by CABI. This book was released on 2007 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The decline of many individual and wild fish stocks has commanded an increase in aquaculture production to meet the protein demands of a growing population. Alongside selective breeding schemes and expanding facilities, transgenic methods have received increasing attention as a potential factor in meeting these demands. With a focus on developing countries, this third text in the series provides detailed information on environmental biosafety policy and regulation and presents methodologies for assessing ecological risks associated with transgenic fish --Publisher website, http://www.cabi.org/bk_BookDisplay.asp?PID=2054, viewed 6 December, 2007.

Download or read book The State of the World s Aquatic Genetic Resources for Food and Agriculture written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2019-07-24 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conservation, sustainable use and development of aquatic genetic resources (AqGR) is critical to the future supply of fish. The State of the World’s Aquatic Genetic Resources for Food and Agriculture is the first ever global assessment of these resources, with the scope of this first Report being limited to cultured AqGR and their wild relatives, within national jurisdiction. The Report draws on 92 reports from FAO member countries and five specially commissioned thematic background studies. The reporting countries are responsible for 96 percent of global aquaculture production. The Report sets the context with a review of the state of world’s aquaculture and fisheries and includes overviews of the uses and exchanges of AqGR, the drivers and trends impacting AqGR and the extent of ex situ and in situ conservation efforts. The Report also investigates the roles of stakeholders in AqGR and the levels of activity in research, education, training and extension, and reviews national policies and the levels of regional and international cooperation on AqGR. Finally, needs and challenges are assessed in the context of the findings from the data collected from the countries. The Report represents a snapshot of the present status of AqGR and forms a valuable technical reference document, particularly where it presents standardized key terminology and concepts.

Download or read book Tropical Deltas and Coastal Zones written by Chu T. Hoanh and published by CABI. This book was released on 2010 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coastal deltas represent one of the most diverse biophysical regions in the tropical developing world. These regions are also home to large human populations and are significant areas of agricultural production and industrialization. Tropical deltas currently face a number of environmental pressures stemming from their intensive use and rapid development, and new threts are emerging as a result of global climate change and expected sea-level rise. Focusing on the developing countries of Asia, Africa and South America, chapters explore the impact of development strategies and existing land and water management practices on delta environments. New management techniques are also explored, which address conflicts between rice-based agriculture, aquaculture, fisheries, and the emerging threat of climate change. Illustrating the current key management challenges involved in protecting tropical deltaic systems in the face of environmental change, this book will be an essential reference for students, researchers and policy makers in agriculture, environmental science and aquaculture.

Download or read book Agricultural Biotechnology in Sub Saharan Africa written by John Edward Otieno Rege and published by Springer Nature. This book was released on 2022-06-22 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive analysis of the application level for various agricultural biotechnologies across Sub-Saharan Africa. The authors examine the capacity available as well as the enabling environment, including policy and investments, for facilitating agricultural biotechnology development and use in the region. For each Sub-Saharan country, the status of biotechnology application is assessed in four major sectors; Crops, Livestock, Forestry and Aquaculture. Examples such as the number and requisite skill levels of trained personnel, biosafety frameworks and public awareness are surfaced in these chapters. This work also discusses the impact of push-pull factors on research, training and food security and identifies opportunities for investment in biotechnology and local agribusiness. Development partners, policy makers, agricultural consultants as well as scientists and private sector investors with an interest in biotechnology initiatives in Sub-Saharan Africa will find this collection an important account to identify key gaps in capacity and policy, as well as priority areas going forward. The volume highlights ways to develop technology and increase agricultural production capacity through international cooperation and inclusive economic growth, making it a valuable practice guide in line with the UN Sustainable Development Goals, in particular SDG 2 Zero Hunger and SDG 8 Decent Work and Economic Growth. Clear case studies round off the reading experience.

Download or read book Workshop on Status and Trends in Aquatic Genetic Resources written by Devin M. Bartley and published by Food & Agriculture Org.. This book was released on 2007 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of the workshop -- Background of the workshop -- Report of the workshop -- Conclusions and recommendations of the workshop -- Contributed papers. Developing policies for the management of fishery genetic resources / D.M. Bartley and A. Toledo -- Status and trends in genetic resources of capture fisheries / W.S. Grant -- Issues, status and trends in deep-sea fishery genetic resources / P.J. Smith -- Genetic resources for aquaculture : status and trends / R.S.V. Pullin -- Fish genomics and analytical genetic technologies, with examples of their potential applications in management of fish genetic resources / Z. Liu.

Download or read book Success Stories in Asian Aquaculture written by Sena S. De Silva and published by IDRC. This book was released on 2009-10-14 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines how the adaptability and innovation of small-scale aquaculture farmers have been crucial to success in the region. It describes the relationship between aquaculture development in Asia to natural systems, social conditions and economics.

Download or read book Biological invaders in inland waters Profiles distribution and threats written by Francesca Gherardi and published by Springer Science & Business Media. This book was released on 2007-08-30 with total page 735 pages. Available in PDF, EPUB and Kindle. Book excerpt: Invasive species have come to dominate 3% of the Earth’s ice-free surface, constituting one of the most serious ecological and economic threats of the new millennium, and freshwater systems are particularly vulnerable. This book examines the identity, distribution, and impact of freshwater non-indigenous species and the dynamics of their invasion. It focuses on old and new invaders and provides a starting point for further research.

Download or read book Invasive Alien Species written by Michael R. Ielmini and published by John Wiley & Sons. This book was released on 2021-04-21 with total page 1488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Jedes Jahr breiten sich invasive gebietsfremde Arten in neue Ökosysteme aus. Die von den Eindringlingen verursachten Auswirkungen können sich in kürzester Zeit bemerkbar machen und verheerend sein. Das Thema der invasiven gebietsfremden Arten ist umfassend, komplex und auf verschiedenen Ebenen von globaler Bedeutung. Verschärft wird es durch die Globalisierung der Weltwirtschaft und den zunehmenden Handel, durch den die natürlichen Barrieren für den Transfer von Arten durchbrochen werden. Invasive gebietsfremde Arten bedrohen die weltweite Nahrungsmittelversorgung, die Qualität und Verfügbarkeit von Trinkwasser sowie die Stromproduktion und -versorgung. Zusammen mit den zusätzlichen Risiken durch den globalen Klimawandel ist die weltweite Homogenisierung von Pflanzen, Tieren und Mikroben ein wesentlicher Faktor für den sich verschlechternden Gesundheitszustand der Ökosysteme und die nachlassenden Ökosystemdienstleistungen überall auf der Welt. Um dieser Entwicklung entgegenzuwirken, besteht die dringende Notwendigkeit einer einheitlichen Ausrichtung von Regierungen, Kulturen und Programmen und einer besseren grenzüberschreitenden Koordination. Nur so lassen sich die vielfältigen Bedrohungen durch invasive gebietsfremde Arten für die Umwelt, die Wirtschaft und die Gesundheit von Pflanzen und Tieren sowie insbesondere die menschliche Gesundheit effektiv bekämpfen. Dieses vierbändige Werk ist das erste, das einen umfassenden Satz nützlicher Materialien zu den zentralen Themen bereitstellt, um die gesamte globale Bedrohung durch invasive gebietsfremde Arten sowie die vielfältigen Probleme in verschiedenen Teilen der Welt deutlich zu machen, und es enthält Material, in dem potenziell replizierbare Lösungen zur Überwindung dieser Bedrohungen aufgezeigt werden. Das Werk betont die Bedrohung durch invasive gebietsfremde Arten auch im Sinne eines globalen ?Aufrufs zum Handeln?. Invasive Arten kennen keine Grenzen. Daher hoffen wir, dass wir durch die Zusammenstellung von Material, das unterschiedliche wissenschaftliche und gesellschaftliche Standpunkte aus aller Welt berücksichtigt, sowie durch die Vermittlung von Erkenntnissen und Beispielen zu einer Vielzahl damit zusammenhängender Themen das globale Bewusstsein stärken und einheitliche nationale Reaktionen auf die Bedrohung durch invasive gebietsfremde Arten fördern können.

Download or read book Regional Review on Status and Trends in Aquaculture Development in Sub Saharan Africa 2015 written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2017 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present regional review and synthesis for sub-Saharan Africa (SSA) provides an overview of major issues and trends in the aquaculture sector between 2004 and 2014 with emphasis on outstanding issues over the last five years. The regional review reflects development in 41 countries in SSA for which production was reported to FAO in 2014. The production volume and value data have been derived from the latest FAO global aquaculture dataset 1950-2014 (FishStat).

Download or read book World aquaculture 2015 a brief overview written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-05-31 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: FAO Fisheries and Aquaculture Circulars Global aquaculture production in 2015 reached 106 million tonnes, with an estimated value of US$163 billion, although the average annual growth rate of world aquatic animal production slowed to 6.4 percent in the period 2001–2015. Bringing together information from six regional reviews, this report examines how the aquaculture sector has performed over the past five years and draws lessons for ensuring sustainable growth and expansion in the years ahead.

Download or read book New Technologies in Aquaculture written by Gavin Burnell and published by Elsevier. This book was released on 2009-07-30 with total page 1224 pages. Available in PDF, EPUB and Kindle. Book excerpt: With wild stocks declining due to over-fishing, aquaculture will have a more significant role to play in meeting future demand for fresh fish. Developments in research continue to lead to improvements in aquaculture production systems, resulting in increased production efficiency, higher product quality for consumers and a more sustainable industry. New technologies in aquaculture reviews essential advances in these areas. Part one focuses on the genetic improvement of farmed species and control of reproduction, with chapters on genome-based technologies in aquaculture research, selective breeding and the production of single sex and sterile populations, among other topics. Parts two and three review key issues in health, diet and husbandry, such as the control of viral and parasitic diseases, diet and husbandry techniques to improve disease resistance, advances in diets for particular fish species and the impact of harmful algal bloom on shellfisheries aquaculture. Chapters in Parts three and four then examine the design of different aquaculture production systems, including offshore technologies, tank-based recirculating systems and ponds, and key environmental issues, such as the prediction and assessment of the impact of aquaculture. Concluding chapters focus on farming new species. With its well-known editors and distinguished international team of contributors, New technologies in aquaculture is an essential purchase for professionals and researchers in the aquaculture industry. Reviews recent advances in improvements in aquaculture production Focuses on the genetic improvement and reproduction of farmed species, including genome-based technologies Discusses key health issues, including advances in disease diagnosis, vaccine development and other emerging methods to control pathogens in aquaculture

Download or read book Regional review on status and trends in aquaculture development in sub Saharan Africa 2020 written by Mapfumo, B. and published by Food & Agriculture Org.. This book was released on 2022-01-06 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: This review provides an overview of the status, trends, challenges and projections for aquaculture in sub-Saharan Africa (SSA) and evaluates the major trends during previous five years. While the sector still faces various internal and external challenges, the inherent natural potential of the region and rapidly increasing demand for fish has resulted in increased prioritization of aquaculture in almost all SSA countries and the African Union and subsidiary bodies have given special attention to the sector development. In order to realize its full potential, the SSA region needs to address a combination of overarching factors limiting aquaculture development so far, such as ineffective development approaches, weak governance frameworks, underdeveloped value chains and low availability as well as the high cost of key production inputs. Strengthened value chains for tilapia and catfish, promotion of new species, improved biosecurity, continued development of certification and associated harmonized best practices, improved information systems and innovations to address climate-change related impacts are some of the matters to be addressed. Financial institutions and private sector (national and international) have equally started investing, even though in the global picture such interventions may seem negligible, which makes the continent to call for more and higher levels technical and financial assistance from international partners. Upscale the status of production and productivity via healthy investments would help the sector to generate a variety of benefits including food security, livelihoods, employment, domestic and intra-regional markets, foreign currency income and other socio-economic benefits.

Download or read book Genetic Methods for Biological Control of Non native Fish in the Gila River Basin written by Anne R. Kapuscinski and published by . This book was released on 2005 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A blue revolution in sub Saharan Africa Evidence from Ghana s tilapia value chain written by Ragasa, Catherine and published by Intl Food Policy Res Inst. This book was released on with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global growth in aquaculture is underway – a “blue revolution” featuring rapid increases in demand for fish and a corresponding surge in aquaculture production. This paper describes the fast-growing tilapia value chain in Ghana to demonstrate the features of a nascent blue revolution in sub-Saharan Africa (SSA) and to illustrate its potential for job creation and reducing poverty and food insecurity there. Tilapia production has been growing at 15 percent annually in SSA, but imports are also surging to satisfy the growing appetite for tilapia. This paper illustrates how aquaculture can grow sustainably in SSA within the context of growing demand and global competition. A value chain analysis is conducted using secondary data analysis, desk reviews of experiences and lessons from other countries, interviews with 95 actors in the tilapia value chain in Ghana, and detailed production and profitability data from Ghanaian tilapia farmers. A profitable farmed tilapia industry has been established in Ghana with the potential to expand supply to satisfy local demand and to export to neighboring countries. Productivity in the industry has grown mainly through reducing the mortality rates of fingerlings and improvements in the supply of locally-produced high-quality fish feed. Feed costs remain high. However, there is potential to reduce those costs by improving the productivity of crops that are used in fish feed, particularly maize and soybean. Reducing local feed costs will have positive spillover effects on both other pond-based aquaculture systems and on the livestock feed sector. Moreover, Ghana can expand it fish feed production to be an important source of feed within SSA. The industry can further increase aquaculture productivity through the adoption of faster-growing fish strains and better management practices. Ghana’s aquaculture sector could grow even faster by adopting lessons from other countries, including on infrastructure provision, fiscal incentives for the production of fish feed ingredients, and sustainable fish farming practices, particularly through paying close attention to water and feed quality and addressing food safety concerns within the sector.

Download or read book Country Case Study written by and published by WorldFish. This book was released on 2008 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fishponds in farming systems written by A.J. Zijpp and published by BRILL. This book was released on 2023-08-28 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Throughout the last century, specialisation and intensification were buzz words for farmers in the Western world. However, this approach has not resulted in sustainable development as evidenced by the fact that scientists now need to create technologies to reduce negative impacts. In this book we demonstrate that an alternative exists. Case studies from Bangladesh, Thailand, and Vietnam show that integration and diversification increase both farm productivity and farmers’ incomes. By adopting a participatory approach, farmers and scientists identified a range of technologies that strengthen the positive impacts of integrated aquaculture-agriculture systems for the environment. This book is a collection of refereed papers on a controversial subject in agricultural development. Arguing that sustainability of fish culture in ponds needs a new paradigm - feed the pond to grow fish - two chapters focus on nutrient cycling in such systems. Another chapter makes the case for breeding Nile tilapia for resource poor farmers and presents practical options to avoid the pitfalls that arise from natural tilapia mating in low-input ponds. The book contains chapters on livelihood and development aspects and ends with a general discussion completing the picture of the integrated aquaculture-agriculture systems. Overall it composes a review which addresses one of the key issues of the new century: how to sustainably produce food without compromising environmental integrity."