A study tour of seafood markets in southern China (Guangdong Province and Hong Kong SAR) was conducted in 2005. The programme provided participants with exposure to some of China's larges live marine seafood markets, provided insight on marine farming systems and management including major species and technologies, and provided participants with the opportunity to develop valuable business and scientific contacts with farmers, buyers, traders, industry groups and scientists.

Recognising the importance of iridoviral disease, in terms of its potential to spread and cause economic loss, grouper iridoviral disease was included for listing in the quarterly aquatic animal disease (QAAD) list under any other diseases of importance effective for reporting from first quarter of 2003. This disease card is developed to provide information to national authorities and support the regional NACA/FAO/OIE QAAD reporting system.

This is the report of the 3rd Regional Grouper Hatchery Production Training Course, which was conducted at the Brackishwater Aquaculture Development Center, Situbondo, East Java, Indonesia from April 18-May 8, 2005. There were a total of 17 participants coming from Australia, Brunei Darussalam, Indonesia, Malaysia, Maldives, Marshall Islands, Singapore, and Vietnam. The training consisted of a  mixture of theory, practical and field trips for the participants.

In this issue:

Asian Development Bank study on aquaculture and poverty. The consequences of converting to organic shrimp farming. Recycling water and making money with Artemia. Advances in the seed production of cobia Rachycentron canadum in Vietnam. Australian success with barramundi cod Cromileptes altivelis. Recent grouper breeding developments in Thailand. Application of probiotics in rotifer production systems. Contract hatchery systems. Rainbow trout culture in Iran. Spotted babylon Babylonia areolata growout in earthern ponds.

Most marine fish farms in Asia still rely on what is commonly termed "trash fish". Despite it's apparent abundance and availability, there are some issues and problems related to its use in fish farming. This guide explores new and better farming practices making use of formulated feeds, as well as technical aspects of feed storage and quality control, management of feeding including weaning of groupers onto formulated feeds and economic considerations.