This report summaries the proceedings of the 20th meeting of the Regional Advisory Group on Aquatic Animal Health, held 4-5 November 2021. The meeting discussed: Progress on NACA’s Asia Regional Aquatic Animal Health Program; updates from the OIE Aquatic Animal Health Standards Commission; aquaculture biosecurity; Progressive Management Pathway for Improving Aquaculture Biosecurity activities relevant to Asia; a systematic approach for quantifying biosecurity measures in aquaculture; aquatic animal health strategy; updates on the OIE Regional Collaboration Framework on Aquatic Animal Health; and updates on the QAAD Reporting and Disease List.

In this issue:

Integrated taxonomy, conservation and sustainable development: Multiple facets of biodiversity; A note on 100th birth anniversary of the late Dr Hiralal Chaudhuri; Aquaculture field schools supporting mangroves for climate change adaptation of Indonesian milkfish-shrimp farmers; An insight to red tilapia breeding and culture: A farmer advisory; Aquaculture for livelihoods and food security in North-western India; NACA Newsletter.

Over the last five decades, over 30 million people along Java’s north coast have experienced subsidence and subsequent soil erosion. In 2015, Building with Nature Indonesia (BwNI-Demak) started a coastal protection project in 10 communities of nine coastal villages of Demak regency. The protection measures introduced included the use of permeable structures (dams) that successfully capture sediment and support natural recovery of mangroves, and aquaculture field schools, to train small-scale farmers on good aquaculture practices such as low external inputs sustainable aquaculture, associated mangrove aquaculture and multi-trophic srhimp aquaculture.

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.

Please visit NACA's Youtube channel to access the videos. Our Youtube channel is brand new, please consider subscribing for more technical aquaculture videos!