This report summarises the proceedings of the 19th meeting of the Advisory Group, held 26-27 November 2020 via video conference. The group's role includes reviewing disease trends and emerging threats in the region, identifying developments in global aquatic disease issues and standards, evaluating the Quarterly Aquatic Animal Disease Reporting Programme and providing guidance on regional strategies to improve aquatic animal health management.

Video recordings of technical presentations from the Online Consultation on Strategies for Hepatopancreatic Microsporidiosis caused by Enterocytozoon hepatopenaei (9-10 February 2021) are now available for viewing via Youtube. Presentations include information on the history of EHP, development of research tools, transmission route and recommendations for its control on farm.

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In this issue:

Exotic trout fisheries resources and potentialities in Uttarakhand; Scenario of captive production of Clarias magur in India; Strategies to reduce feed cost by improving gut health and nutrient utilisation of fish in aquaculture; Fish pituitary gland collection and supply as a vocation in West Bengal, India; Coral trout Plectropomus leopardus aquaculture research and fingerling production in Indonesia; Smartphone app improving smallholder shrimp farming practices in Bangladesh; NACA Newsletter.

Coral trout Plectropomus leopardus is an emerging exported grouper commodity in Indonesia. The demand for coral trout fingerlings has been increasing and the value of this species is the highest among groupers. However, the rearing of coral trout larvae is notoriously more ‘difficult’ than other groupers. This article describes research on coral trout larval rearing protocols conducted by the Institute for Mariculture Research and Fisheries Extension, which has achieved a survival rate of 12%.

In this issue:

Mahseer sanctuaries of Meghalaya: A conservation and recreational perspective; Impacts of climate change on aquaculture in Vietnam: A review of local knowledge; Simple means of water aeration adopted by progressive fish breeders in West Bengal, India; Breeding striped snakehead (Channa striata) using the concrete tank method in the Cangkringan Area, Special Region of Yogyakarta; NACA Newsletter.

The striped snakehead (Channa striata) is a species of swamp fish that has a high economic value. Intensive fishing has reduced the wild populations. Hatchery production of this species has the potential for both commercial aquaculture supportive breeding programmes to conserve fish resources and increase the natural population. Below we describe a protocol we used for controlled spawning and hatchery operations for striped snakehead.

The 35th Session of Asia-Pacific Fishery Commission has identified the lack of effective governance as a major threat to sustainable aquaculture growth for greater contribution to achievement of the Sustainable Development Goals. The objectives of the consultation were to: Share the results of country studies on aquaculture governance in respective countries; identify gaps, issues and challenges in aquaculture governance; and recommend strategies and actions to improve and strengthen aquaculture governance.

Audio recording of presentation delivered at the Consultation on Strengthening Governance of Aquaculture for Sustainable Development in Asia-Pacific, 5-6 November 2019, Bangkok, Thailand.

The ASEAN Regional Technical Consultation on Aquatic Emergency Preparedness and Response Systems for Effective Management of Transboundary Disease Outbreaks in Southeast Asia was held from 20-22 August 2018 in Bangkok, Thailand. The consultation discussed the status of and/or need for aquatic emergency preparedness and response systems for effective management of transboundary disease outbreaks in Southeast Asia. Issues were addressed through country reports, technical presentations and a workshop.

EHP or Enterocytozoon hepatopenaei is a fungal microsporidian parasite that infects the hepatopancreas (hp) of tiger shrimp (Penaeus monodon) and whiteleg shrimp (P. vannamei) in Thailand and results in slow growth and, in chronic infections, mortalities. EHP is also known from Brunei, China, India, Indonesia, Malaysia, Philippines, Venezuela and Vietnam. This fact sheet provides information on the EHP life cycle, signs of infection, diagnosis and management in both hatcheries and growout, as well technical contacts for further information.