Understanding Diseases And Control In Seaweed Farming In Zanzibar

Author : Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
Page : 64 pages
File Size : 42,7 Mb
Release : 2020-05-01
Category : Technology & Engineering
ISBN : 9789251326015

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Understanding diseases and control in seaweed farming in Zanzibar by Food and Agriculture Organization of the United Nations Pdf

In view of all production and productivity problems the seaweed aquaculture industry has been facing as well as the impact of the seaweed die-off on the Island economy with sharp decline of income and revenues for thousands of farmers and traders and, recognizing the compounded problems that about 20,000 seaweed farmers' livelihood are based on a single aquaculture system affecting mostly women and youth, the FAO-funded Technical Cooperation Programme “Support to the Aquaculture Subsector of Zanzibar” (TCP/URT/3401) recognized and recommended the Biological and Economic Research on Seaweed as a relevant pillar of the Aquaculture Development Strategy Plan. This technical report is part of the FAO-TZ project “Support to Seaweed Diseases and Die-off Understanding and Eradication in Zanzibar” TCP/URT/3601/C1, and covers an initial analysis of the die-offs due to epiphyte infestation and ice-ice disease in Zanzibar. The assessment is mainly based on site visits to the seaweed farms in Unguja and Pemba and laboratorial analysis of collected seaweed samples conducted by the authors between February and June 2017. Findings were cross-checked with a literature review on the topic and presented during stakeholders’ meetings in both Islands.

Author : Binyam Afewerk Demena,Peter A.G. Van Bergeijk
Publisher : Springer Nature
Page : 367 pages
File Size : 44,8 Mb
Release : 2022-11-01
Category : Business & Economics
ISBN : 9789811942112

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Trade and Investment in East Africa by Binyam Afewerk Demena,Peter A.G. Van Bergeijk Pdf

This book provides a thorough understanding of the key policy debates on international trade and investment for development with a focus on the East African Community (EAC) to strengthen Member States’ capacity to develop policies to promote their exports’ competitiveness and diversification. Beyond Member States’, the book serves as a base for a deeper understanding of the challenges, opportunities and requirements of the intra-continental trade agreement which is now in sight with the ratification of the Tripartite (EAC-COMESA-SADC) Free Trade Area that is critical in addressing key constraints to trade in the African continent. Moreover, the lessons from this edited volume may also extend to the challenges and opportunities of the African Continental Free Trade Area. The book brings together a comprehensive overview and an evidence-based analysis that can be considered best practice in the region. The trade and investment policy analysis of constraints and opportunities aims to improve trade and competitiveness and covers macro- (economy-wide), meso- (sectoral) and micro- (firm or household) levels. This multi-level approach is crucial for understanding how current trade and investment policies limit competitiveness and diversification in order to identify more tangible policy action for overcoming such constraints. The individual contributors follow comprehensive applied empirical approaches, and each chapter generates knowledge needed to identify key challenges and opportunities focusing on research-led policy-relevant approaches that enable readers to better understand national, bilateral, and multilateral cooperation as well as policies for sustainable development in East Africa. The contributors know the EAC context very well as their engagement in policymaking goes beyond the context of the papers they are writing about. The individual chapters were developed as part of a research and capacity building programme under the aegis of ACP and EU that we implemented in 2020-2022. The research project well fits into the Frontiers in African Business Research series as we have many African contributors. The contributions matter to policymakers and academic circles. For students, the book serves as an excellent guide for understanding international trade and investment theories and gaining up-to-date knowledge on developments in the world economy and their effects on developing countries and SDGs. Trade policy researchers and students will be able to extend theories and empirical data to address new and emerging topics beyond the settings already covered in the book.

Author : Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
Page : 48 pages
File Size : 50,9 Mb
Release : 2021-07-16
Category : Technology & Engineering
ISBN : 9789251347102

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Seaweeds and microalgae by Food and Agriculture Organization of the United Nations Pdf

Algae, including seaweeds and microalgae, contribute nearly 30 percent of world aquaculture production (measured in wet weight), primarily from seaweeds. Seaweeds and cmicroalgae generate socio-economic benefits to tens of thousands of households, primarily in coastal communities, including numerous women empowered by seaweed cultivation. Various human health contributions, environmental benefits and ecosystem services of seaweeds and microalgae have drawn increasing attention to untapped potential of seaweed and microalgae cultivation. Highly imbalanced production and consumption across geographic regions implies a great potential in the development of seaweed and microalgae cultivation. Yet joint efforts of governments, the industry, the scientific community, international organizations, civil societies, and other stakeholders or experts are needed to realize the potential. This document examines the status and trends of global algae production with a focus on algae cultivation, recognizes the algae sector’s existing and potential contributions and benefits, highlights a variety of constraints and challenges over the sector’s sustainable development, and discusses lessons learned and way forward to unlock full potential in algae cultivation and FAO’s roles in the process. From a balanced perspective that recognizes not only the potential of algae but also constraints and challenges upon the realization of the potential, information and knowledge provided by this document can facilitate evidence-based policymaking and sector management in algae development at the global, regional and national levels.

Author : Alan T. Critchley
Publisher : Springer Nature
Page : 323 pages
File Size : 52,5 Mb
Release : 2024-06-30
Category : Electronic
ISBN : 9783031478062

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Tropical Phyconomy Coalition Development by Alan T. Critchley Pdf

Author : Mapfumo, B.
Publisher : Food & Agriculture Org.
Page : 100 pages
File Size : 45,9 Mb
Release : 2022-01-06
Category : Technology & Engineering
ISBN : 9789251353806

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Regional review on status and trends in aquaculture development in sub-Saharan Africa – 2020 by Mapfumo, B. Pdf

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.

Author : Anicia Q. Hurtado,Alan T. Critchley,Iain C. Neish
Publisher : Springer
Page : 216 pages
File Size : 45,8 Mb
Release : 2017-10-17
Category : Science
ISBN : 9783319634982

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Tropical Seaweed Farming Trends, Problems and Opportunities by Anicia Q. Hurtado,Alan T. Critchley,Iain C. Neish Pdf

This book collates the latest information on Kappaphycus and Eucheuma seaweeds. The edited volume provides an important companion to anyone studying or working with what is the world’s largest cultivated marine plant biomass. The contributing authors have excelled in providing information on production and present and future uses of these carrageenan-bearing seaweeds. Important elements of taxonomy, distribution and methods of cultivation and processing are presented to the reader in an accessible and easily understood format. The book provides a number of valuable opinions on value addition and MUZE technologies which highlight value-chains associated with these important red algae.

Author : Diego Valderrama,Junning Cai,Nathanaël Hishamunda,Neil B. Ridler
Publisher : Food & Agriculture Organization of the UN (FAO)
Page : 0 pages
File Size : 50,6 Mb
Release : 2013
Category : Marine algae culture
ISBN : 9251077460

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Social and Economic Dimensions of Carrageenan Seaweed Farming by Diego Valderrama,Junning Cai,Nathanaël Hishamunda,Neil B. Ridler Pdf

Carrageenan is a gelling agent extracted from red seaweeds and it has multiple applications in the food processing and other industries. Increasing demand for carrageenan has led to rapid expansion of carrageenan seaweed (primarily Kappaphycus and Eucheuma) farming in tropical areas. This expansion is expected to continue, but many issues need to be addressed to enable the sector to develop its full potential in contributing towards sustainable livelihoods, human development and social well-being. Including six country case studies and a global synthesis, this document provides a comprehensive and balanced assessment of the economic, social and governance dimensions of carrageenan seaweed farming. Information and insights provided by this document should facilitate evidence-based decision-makings in both the public and private sectors.

Author : Alvaro Israel,Rachel Einav,Joseph Seckbach
Publisher : Springer Science & Business Media
Page : 473 pages
File Size : 47,8 Mb
Release : 2010-06-18
Category : Science
ISBN : 9789048185696

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Seaweeds and their Role in Globally Changing Environments by Alvaro Israel,Rachel Einav,Joseph Seckbach Pdf

Global warming is accelerating faster than the ability for natural repair, and environmental stresses are damaging ecosystems, all affecting physical and biological systems on Earth. A new Nasa-led study shows that human activity has caused climate changes resulting in permafrost thawing, acid rain, and lower productivity in lakes as well as increased emissions of greenhouse gases, including CO2, N20, CH4, CF3, and CFC. Marine plants play a vital role in maintaining the balance of marine environments, while serving as a source of food for humankind and important chemical compounds. Microalgae and seaweed have enormous potential for reducing global warming and climate change. During photosynthesis algae grow, draw CO2 from the atmosphere, release oxygen, and produce solar biofuel. Experts in the life of marine plant ecosystems in globally changing environments contributed chapters to this book. The target readers are phycologists, ecologists, atmospheric scholars, conservationists, environmentalists, and ecologically aware laymen.

Author : Walter Leal Filho,Nicholas Oguge,Desalegn Ayal,Lydia Adeleke,Izael da Silva
Publisher : Springer
Page : 2838 pages
File Size : 47,8 Mb
Release : 2021-05-21
Category : Science
ISBN : 3030451054

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African Handbook of Climate Change Adaptation by Walter Leal Filho,Nicholas Oguge,Desalegn Ayal,Lydia Adeleke,Izael da Silva Pdf

This open access book discusses current thinking and presents the main issues and challenges associated with climate change in Africa. It introduces evidences from studies and projects which show how climate change adaptation is being - and may continue to be successfully implemented in African countries. Thanks to its scope and wide range of themes surrounding climate change, the ambition is that this book will be a lead publication on the topic, which may be regularly updated and hence capture further works. Climate change is a major global challenge. However, some geographical regions are more severly affected than others. One of these regions is the African continent. Due to a combination of unfavourable socio-economic and meteorological conditions, African countries are particularly vulnerable to climate change and its impacts. The recently released IPCC special report "Global Warming of 1.5o C" outlines the fact that keeping global warming by the level of 1.5o C is possible, but also suggested that an increase by 2o C could lead to crises with crops (agriculture fed by rain could drop by 50% in some African countries by 2020) and livestock production, could damage water supplies and pose an additonal threat to coastal areas. The 5th Assessment Report produced by IPCC predicts that wheat may disappear from Africa by 2080, and that maize— a staple—will fall significantly in southern Africa. Also, arid and semi-arid lands are likely to increase by up to 8%, with severe ramifications for livelihoods, poverty eradication and meeting the SDGs. Pursuing appropriate adaptation strategies is thus vital, in order to address the current and future challenges posed by a changing climate. It is against this background that the "African Handbook of Climate Change Adaptation" is being published. It contains papers prepared by scholars, representatives from social movements, practitioners and members of governmental agencies, undertaking research and/or executing climate change projects in Africa, and working with communities across the African continent. Encompassing over 100 contribtions from across Africa, it is the most comprehensive publication on climate change adaptation in Africa ever produced.

Author : T. R. McClanahan,C. R. C. Sheppard,D. O. Obura
Publisher : Oxford University Press
Page : 550 pages
File Size : 42,7 Mb
Release : 2000-10-12
Category : Nature
ISBN : 9780195352177

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Coral Reefs of the Indian Ocean by T. R. McClanahan,C. R. C. Sheppard,D. O. Obura Pdf

Coral reefs are among Earth's most diverse, productive, and beautiful ecosystems, but until recently, their ecology and the means to manage them have been poorly understood and documented. In response to the inadequate information base for coral reefs, this book reviews the ecological and conservation status of coral reefs of the Western Indian Ocean, bringing together presentations of the region's leading scientists and managers working on coral reefs. Coral Reefs of the Indian Ocean: Their Ecology and Conservation starts with a general overview of the biogeography of the region and a historical account of attempts to conserve this ecosystem. It goes on to describe the state of the reefs in each of the countries with coral reefs, and it concludes with a series of management case studies. The book also summarizes most of the existing ecological information on reefs in this region and efforts at management, making it useful for students, teachers, and investigators interested in tropical or marine ecology, conservation biology and management, and environmental sciences.

Author : Hurtado, A.Q.
Publisher : Food & Agriculture Org.
Page : 88 pages
File Size : 52,6 Mb
Release : 2022-01-21
Category : Social Science
ISBN : 9789251354247

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Thematic Background Study – Genetic resources for farmed seaweeds by Hurtado, A.Q. Pdf

The increasing global population needs to source food from the ocean, which is a much greater area than the land. The ocean is rich with diversified flora and fauna, and both are sources of proteins, vitamins, minerals, phytohormones, and bioactive compounds. Thousands of species of macroalgae (seaweed) dominate the vegetation of the seafloor from the intertidal to the subtidal zone. The domestication of several economically important seaweed such as Saccharina, Undaria and Pyropia in China, Japan and the Republic of Korea, and Kappaphycus and Eucheuma in Indonesia, Malaysia, the Philippines and the United Republic of Tanzania led to the intensive commercial cultivation of these seaweeds. Except for the United Republic of Tanzania, the commercial farming of seaweed, both temperate and tropical species, is centred in Asia. Despite the presence of several economically important seaweeds outside Asia, commercial farming is practised only in a few of non-Asian countries. These include Chile for Gracilaria and Macrocystis (Buschmann et al., 2001); France for Palmaria palmata, Porphyra umbilicalis and Undaria pinnatifida (Netalgae); and Canada for Saccharina latissima in integrated multi-trophic aquaculture (IMTA) (Chopin et al., 2013) and Chondrus crispus. Trial cultivation of Saccharina spp. and P. palmata is now taking place in Western Europe. Seaweeds are farmed mainly for food such as sea vegetables and food ingredients (Bixler and Porse, 2011), as well as feed (Wilke et al., 2015; Norambuena et al., 2015). However, there is increasing interest in their use for biorefinery products that require a vast amount of biomass which must be farmed.

Author : F.T. Short,R.G. Coles
Publisher : Elsevier
Page : 506 pages
File Size : 48,6 Mb
Release : 2001-11-06
Category : Science
ISBN : 9780080525617

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Global Seagrass Research Methods by F.T. Short,R.G. Coles Pdf

This thorough and informative volume presents a set of detailed, globally applicable techniques for seagrass research.The book provides methods for all aspects of seagrass science from basic plant collection to statistical approaches and investigations of plant-animal interaction. The emphasis is on methods that are applicable in both developing and developed countries. The importance of seagrasses in coastal and near shore environments, and ultimately their contribution to the productivity of the world's oceans, has become increasingly recognised over the last 40 years.Seagrasses provide food for sea turtles, nearly 100 fish species, waterfowl and for the marine mammals the manatee and dugong. Seagrasses also support complex food webs by virtue of their physical structure and primary production and are well known for their role as breeding grounds and nurseries for important crustacean, finfish and shell fish populations. Seagrasses are the basis of an important detrital food chain. The plants filter nutrients and contaminants from the water, stabilise sediments and act as dampeners to wave action. Seagrasses rank with coral reefs and mangroves as some of the world's most productive coastal habitat and strong linkages among these habitats make the loss of seagrasses a contributing factor in the degradation of the world's oceans. Contributors from around the world provide up-to-date methods for comparable collection of ecological information from both temperate and tropical seagrass ecosystems.

Author : Frederick T. Short
Publisher : Univ of California Press
Page : 336 pages
File Size : 48,6 Mb
Release : 2003
Category : Nature
ISBN : 0520240472

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World Atlas of Seagrasses by Frederick T. Short Pdf

Seagrasses are a vital and widespread but often overlooked coastal marine habitat. This volume provides a global survey of their distribution and conservation status.

Author : Eurico C. Oliveira,Katrin Österlund,Matern S. P. Mtolera
Publisher : Unknown
Page : 267 pages
File Size : 42,7 Mb
Release : 2005
Category : Marine algae
ISBN : 9163165104

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Marine Plants of Tanzania by Eurico C. Oliveira,Katrin Österlund,Matern S. P. Mtolera Pdf

Author : Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
Page : 176 pages
File Size : 49,5 Mb
Release : 2020-03-01
Category : Technology & Engineering
ISBN : 9789251322932

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Climate change: Unpacking the burden on food safety by Food and Agriculture Organization of the United Nations Pdf

Climate change is causing unprecedented damage to our ecosystem. Increasing temperatures, ocean warming and acidification, severe droughts, wildfires, altered precipitation patterns, melting glaciers, rising sea levels and amplification of extreme weather events have direct implications for our food systems. While the impacts of such environmental factors on food security are well known, the effects on food safety receive less attention. The purpose of Climate change: Unpacking the burden on food safety is to identify and attempt to quantify some current and anticipated food safety issues that are associated with climate change. The food safety hazards considered in the publication are foodborne pathogens and parasites, harmful algal blooms, pesticides, mycotoxins and heavy metals with emphasis on methylmercury. There is also, a dedicated section on the benefits of forward-looking approaches such as horizon scanning and foresight, which will not only aid in anticipating future challenges in a shifting global food safety landscape, but also help build resilient food systems that can be continually updated as more knowledge is assimilated. By building a more widespread and better understanding of the consequences climate change has on food safety, it is hoped that this document will aid in fostering stronger international cooperation in making our food safer by reducing the global burden of these concerns.