We describe a new method for detecting isolates of Vibrio parahaemolyticus that cause acute hepatopancreatic necrosis disease (AHPND). This method is based on the gene sequence of a protein discovered in a sub-fraction of cell-free culture broth from isolates of V. parhaemolyticus that cause AHPND, but not from V. parahaemolyticus or other bacteria that do not cause AHPND. This cell-free preparation caused the typical signs of acute AHPND when administered to shrimp by reverse gavage. 

The disease crisis facing shrimp aquaculture may be propelled, in part, by an interaction between management practices that cause inbreeding, and the amplification by inbreeding of susceptibility to disease and environmental stresses. The study describes and numerically simulates gene flow from Penaeus (Litopenaeus) vannamei hatcheries that employ a ‘Breeder Lock’ to discourage use of their PL as breeders, through ‘copy hatcheries’ that breed the locked PL, to inbred shrimp in farm ponds. 

A Google Group on AHPND detection has been established to promote communication about the two AHPND detection methods (AP1 and AP2) that Dr Chu-Fang Lo and Dr Tim Flegel announced on 24 December 2013. The purpose of the group is to allow people using the methods to send in their comments and experiences about use of these two methods and other methods that might be developed.

In this issue:

Integrated rice/crayfish farming in Hubei Province, China. Improvement of seaweed Kappaphycus alvarezii culture production by reducing grazing by rabbit fish (Siganus spp.). Exploring the fisheries of Wular Lake, Kashmir, India. Golden mahseer Tor putitora - a possible candidate species for hill aquaculture. Free primers for specific detection of bacterial isolates that cause acute hepatopancreatic necrosis disease. Special session on regional cooperation for improved biosecurity. AHPND detection discussion group established.

In this issue:

25th NACA Governing Council held in Vientiane, Lao PDR. Dr Cherdsak Viripat elected as next Director General of NACA. 9th Symposium on Diseases in Asian Aquaculture 24-28 November 2014, Vietnam. NACA to convene the 11th AFS Asian Fisheries and Aquaculture Forum. Free primers for specific detection of bacterial isolates that cause acute hepatopancreatic necrosis disease. World Aquaculture Adelaide 2014: Special session on regional cooperation for improved biosecurity. AHPND detection discussion group established. OIE Regional Workshop on Emerging Aquatic Animal Disease Response, in collaboration with NACA, Bali, Indonesia. United Kingdom - Southeast Asia Workshop on Sustainable Aquaculture.