This report, the 52nd in the series, contains information about the aquatic animal health status of thirteen states in the Asia-Pacific region. The foreword discusses transboundary disease issues and contingency planning.

In this issue:

A visit to Vientianne, Lao PDR. Development of captive broodstock of giant river prawn Macrobrachium rosenbergii. Alien introduction and its impact on native fisheries and aquatic bioiversity of West Bengal, India. Ecological impacts of exotic fish species in India. Farm-made feeds support good growth and survivial of the humpback grouper. An easy way to hold live fish. Litopenaeus vannamei introduction: Sound management or expediency? Newsletter and more.

In this issue:

Collaborative project "Grouper/cluster certification of aqua societies" completed. Report of the Advisory Group on Aquatic Animal Health available. Guidelines on Aquaculture Society Certification released. Listen to us online. Workshop on ecosystem approach to inland fisheries: Data needs and implementation strategies. Disease advisory: Infectious myonecrosis (IMN) status and threat. 7th Regional Grouper Hatchery Production Training Course, 25 September - 15 October, Situbondo, Indonesia.

These guidelines prepare and enable aquaculture societies to seek group certification from independent third party certification programmes. The guidelines are independent of commodity and certification standards. They were developed as part of a collaborative MPEDA/NaCSA/NACA project on the certification of aquaculture societies. Draft guidelines developed by the project partners were discussed at the inception meeting on aquacutlure society certifiction held at Kakinada during 1-2 September 2009.

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 2010, 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.