This technical paper provides an analysis of the economic implications of, and the reasons for, adopting various feeding practices for different fish species and aquaculture systems in Asia. The systems studied include extensive/traditional, semi-intensive and intensive farms for a number of different species including sutchi and pangasiid catfishes (Bangladesh and Viet Nam), hybrid catfish (Thailand), carp polyculture (India and China), prawn and milkfish polyculture (the Philippines).

The Asia Regional Advisory Group on Aquatic Animal Health meets annually to discuss regional health issues including emerging disease threats. This report includes a review of regional disease status circa 2007, global and regional disease reporting arrangements, global issues and standards, progress in implementation of the the Regional Technical Guidelines on Health management for the Responsible Movement of Live Aquatic Animals, identification and designation of regional aquatic animal health resources and regional and international cooperation.

IDRC and NACA convened a workshop to identify the main research issues and needs to sustain Asian aquaculture into the first quarter of the 21st century, and also to bring them to the notice of relevant planners, managers and policy makers, and potential donors. The workshop was held in Rayong, Thailand from 4-7 June 2007. This report contains the issues papers drafted in preparation for the meeting and a summary of the discussions.

In this issue:

Developing guidelines for sustainable freshwater aquaculture planning in Vietnam. Aquaculture production, certification and trade for small-scale farmers. Backyard hatcheries for crustaceans in Thailand. Alternative carp species for diversification in India. Genetic and reproduction technologies for aquaculture and fisheries management of Murray cod. Status of sahar domestication in Nepal. Comparative advantage analysis of shrimp production in Asia. Strategies to improve the livelihoods of the rural poor, Vietnam, and more.

In this issue:

Better management practices for catfish aquaculture in the Mekong Delta, Vietnam. Developing better management practices for marine finfish aquaculture. Workshop on modelling carrying capacity for tropical finfish cage culture: Towards a consensus view. First comprehensive genetic management plan for Asian fish species: Mahseer. NACA and World Fisheries Trust sign agreement on collaboration. Fish Health Master Class. Second Workshop on Application of Molecular Genetic Techniques in Inland Fisheries and Aquaculture Management. Two new species of spiny eels described from Myanmar. Importance of species identification in conservation. Koh Yao Noi mangrove replanting in celebration of 80th birthday of His Majesty the King of Thailand. Responsible movement of live food finfish within ASEAN: Implementation workshop. Consultation on aquaculture certification guidelines. Strengthening regional mechanisms to maximise benefits to small-holder shrimp farmer groups adopting better management practices.

In this issue:

A different form of dumping: The need for a precautionary approach for yet another new species for shrimp farming in Asia. Sustainable livelihoods of pangus farming in Bangladesh. Business approach to national broodstock centres in Vietnam. Freshwater aquaculture in Myanmar. Traditional carp culture in Central Europe. Egg and larval quality in sand bass Psammoperca weigiensis. Effect of protein and lipid level of growth performance of tiger grouper Epinephelus fuscoguttatus.

In this issue:

Lao culture-based fisheries project gets underway. Expert Workshop on Aquaculture Certification, Brazil. Strategies for Development of Asian Reservoir and Lake Fisheries Management. EUS identified as cause of fish kills in Africa. NACA seeks shrimp farm specialists for assignments in Indonesia. FDA detains five species of farm-raised seafood from China. 7th Symposium on Diseases in Asian Aquaculture. Aquafeed Horizons Asia 2008. Scientists join fight against frog diseases. Artificial propagation of snow trout Schizothorax zarudnyi by Iranian experts. NACA keynotes three international meetings. Culture, capture conflicts project review, Indonesia. Sign up to the coldwater aquaculture Yahoo! Tech Group. Website publishing and administration training, Vietnam. Aquatic Animal diseases Significant to Asia-Pacific: Identification Field Guide.

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.

This is the report of the project Application of PCR for improved shrimp health management in the Asian region. The training programme included two training workshops that were designed to provide a good understanding of PCR methodology, laboratory practices and trouble shooting in detection of both DNA and RNA viruses. The workshops were followed by by two rounds of an anonymous PCR inter-calibration or ring testing exercise to allow laboratories to gauge their own performance.

The National Aquaculture Development Authority of Sri Lanka (NAQDA) took several steps to regularise collectors of Penaeus monodon under the restructuring programme of the shrimp aquaculture industry in Sri Lanka. Regularisation of broodstock collectors is very imperative mitigate transmission of white spot disease. NAQDA developed these practices in consultation with the Department of Fisheries and Aquatic Resources, shrimp hatchery owners, broodstock suppliers, NARA, Wayamba environmental authority, Sri Lanka aquaculture development alliance and the consortium for shrimp aquaculture development.