The fourth major international event on giant freshwater prawns was organised by the Asian Institute of Technology from 20-24 March 2007. The conference, organised by Salin Krishna and Michael New, built on a series of highly successful events that trace back to the very beginnings of the industry. The first conference, Giant Prawn 1980 brought together all those involved in freshwater prawn research and farming for the first time and set many priorities for future research and development.

Bangana dero is one of the most popular indigenous minor carps in the north eastern states of India, fetching triple the market prices of Indian major carps. B. dero is a bottom feeder and feeds on insect larvae, molluscs, algae, zooplankton and detritus. Over the last two decades the occurrence of wild juveniles of this fish in Indian rivers has fallen drastically. A protocol for induced breeding, larviculture, nursery rearing and growout including polyculture of B. dero is described.

The Global Conference on Aquaculture 2010 reviewed the present status and trends in aquaculture development, addressed emerging issues relevant to aquaculture development, assessed opportunities and challenges for future aquaculture development and built consensus on advancing aquaculture as a global, sustainable and competitive food production sector. This volume provides information on how aquaculture could be mobilized to alleviate global poverty and improve food and nutrition security in the coming decades.

This practical manual covers key aspects for successful grouper farming including formation of farmer groups, cage crop planning, crop calendar and better management practices for cage aquaculture of grouper. These include site selection, design, cage preparation, seed selection and stocking practices, feed, water and health management, harvest and post-harvest, record keeping, marketing and capital strengthening. It is designed for use by small-scale farmers.

International requirements on food safety, traceability, animal health and welfare and social responsibility are increasingly stringent. The burden of compliance and the cost of certification are particularly heavy for small scale farmers who are often excluded by the limited resources at their disposal. Working in groups can help small scale farmers attain economies of scale necessary to address compliance issues and participate in certification schemes, improving their competitive position.

In this issue:

Possible improvements to carp culture in Andhra Pradesh. Aquaculture and environmental issues in the region of Nai Lagoon, Vietnam. Selection potential for feed efficiency in farmed salmonids. Freshwater prawn broodstock concern in Bangladhesh hatcheries. Production of Cirrhinus molitorella and Labeo chrysophekadion for culture-based fisheries in Lao PDR: Nursery and grow-out. Mussel farming: Alternate water monitoring practice. Use of poultry by-product meals in pelleted feed for humpback grouper Cromileptes altivelis.

This practical manual provides better management practices for the farming of shrimp in tambak systems in Aceh, Indonesia. The manual addresses the formation of farmer groups, crop planning, and specifies better management practices. These include: Location of tambaks, design and construction of tambaks, pond preparation practices, shrimp seed selection and stocking practices, feed management practices, water management practices, health management practices, harvest and post-harvest handling practices, keeping records and improved marketing practices.

L'élevage de la crevette est l’un des secteurs d'aquaculture le plus en essor dans beaucoup de régions du monde, il est également l’un des plus controversés. L'expansion rapide de ce secteur a généré, certes, des sources de revenus pour plusieurs pays, mais elle a été accompagnée par une préoccupation croissante sur les impacts environnemental et social. Les Principes Internationaux pour l'Elevage Responsable de la Crevette fournissent la base sur laquelle les parties prenantes peuvent collaborer pour un développement plus durable de l'élevage de crevette.

在世界许多地方，虾类养殖是水产养殖业增长最快，而且也是最具争 议的部门之一。这一部门的快速发展为许多国家创造了收入，但也伴随着 对环境和社会影响的忧虑。《负责任虾类养殖国际准则》在以更可持续的 方式发展虾类养殖方面为利益相关者之间开展合作提供了基础。《国际准 则》由虾类养殖与环境协作计划制定。该协作包括联合国粮食及农业组织 （粮农组织）、亚太水产养殖中心网、联合国环境规划署保护海洋环境免 受陆上活动污染全球行动纲领协调办公室、世界银行和世界自然基金会。

O Cultivo de Camarão é um dos setores de mais rápido crescimento na aqüicultura em várias partes do mundo e também o mais controverso. A rápida expansão deste setor possibilitou a geração de renda para muitos países, entretanto, ela tem sido acompanhada por crescentes preocupações sobre seus impactos ambientais e sociais. Os Princípios Internacionais para a Carcinicultura Responsável provêm a base sobre a qual todas as partes interessadas poderão colaborar para um desenvolvimento mais sustentável do cultivo de camarão.