After agreeing on the methodology and outline of the country reports, the authors of the case studies, for each feeding strategy and farming system, analyzed demographic factors (including age and marital status, education and ownership structure), physical characteristics (average number of ponds and average pond size), and other input features (stocking strategies, feeding practices, types of feed, frequency and intensity of feeding and labour utilization). The case studies also identified the principal input costs, assessed the economic rates of return (gross and net margins), returns to labour, land and capital, gross and net total factor productivity, break-even prices and production and returns on capital for each feeding strategy. Problem areas were identified for the different farming systems.

After agreeing on the methodology and outline of the country reports, the authors of the case studies, for each feeding strategy and farming system, analyzed demographic factors (including age and marital status, education and ownership structure), physical characteristics (average number of ponds and average pond size), and other input features (stocking strategies, feeding practices, types of feed, frequency and intensity of feeding and labour utilization). The case studies also identified the principal input costs, assessed the economic rates of return (gross and net margins), returns to labour, land and capital, gross and net total factor productivity, break-even prices and production and returns on capital for each feeding strategy. Problem areas were identified for the different farming systems.

This Fisheries and Aquaculture Technical Paper presents the findings of a value chain analysis of the aquafeed (aquatic animal feed) sub-sector for the striped catfish (Pangasianodon hypophthalmus) farming in Viet Nam, including a review of aquafeed regulatory framework in the country. The striped catfish (pangasius) production sub-sector is characterized by intensive pond production technology and high-quality production inputs. In 2014, annual production of pangasius was 1 143 797 tonnes. The key actors in the value chain comprise input suppliers, including feed ingredients suppliers, feed manufacturers, and hatchery operators (seed producers), along with fingerling and grow-out farmers, fish processors, exporters, consumers and service providers. In recent years, large-scale vertically integrated enterprises have started to emerge that operate along the entire value chain, and these now dominate many areas of production.

This book is essential for anyone who wants to understand the challenges of environmental degradation and learn about the sustainable solutions needed to address these critical issues. Today, the entire globe is suffering from various forms of environmental degradation, resource depletion, and an imbalance of natural phenomena. In this context, one of the major issues is loss of ecosystem services and proper functioning of natural ecosystems. Pollution, ecological invasion, loss of biodiversity, land degradation, and loss of productivity across various ecosystems have become the biggest challenges humankind is faced with. Considering Sustainable Development Goals 2030, the major target is to restore degraded ecosystems and their functionality, which will bring back the valuable ecosystem services of a diverse ecosystem. Ecosystem Management: Climate Change and Sustainability addresses all these issues to teach a global readership the dimensions of ecosystem services and ways toward a future sustainable world.

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

A rapid increase in aquaculture production in Bangladesh has lowered fish prices, increased protein consumption, and reduced poverty. The Making of a Blue Revolution in Bangladesh offers a valuable case study of how this transformation in the fish value chain has occurred and how it has improved the lives of both fish producers and fish consumers and considers the future potential of aquaculture in Bangladesh.