People who manage fisheries in the lower Mekong are beginning to think of themselves as a community within a common river basin. This is a different way of thinking; managing fisheries is no longer seen as an isolated activity but as a part of the life of people who live along the river. Previously, fisheries managers might have thought of their job as safeguarding or increasing fish production, but now they must share in the effort to alleviate poverty.

This case study provides (1) a description of the farming systems and management practices for mixed shrimp aquaculture-mangrove farming systems in the Mekong delta of Vietnam and (2) the findings from a detailed socio-economic study of these systems. The findings provide insight into the social and economic status of farmers involved in mixed aquaculture-mangrove farming, and the constraints associated with the adoption of management recommendations, with special consideration of the problems faced by poor farmers.

The integration of dry season shrimp farming into rice fields has raised incomes over several consecutive seasons for many farmers in the region. However, our study has revealed some key constraints that need to be addressed in order improve environmental and economic sustainability. The results of our study show that the traditional practice of recruiting native shrimp species through water exchange is not sustainable because of the attendant build-up of sedimentation on the farm.

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 2004, 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.

This report, the 28th in the series, contains information about the aquatic animal health status of seventeen states in the Asia-Pacific region. The foreword discusses the need for improved surveillance and transparent reporting of aquatic animal disease.