This presentation by Elisa Claire Sy of E-Primate, showcases how RAS-P.I.N.A.S - a closed-loop, water-efficient technology - enables high-density, land-based fish farming using biofiltration, aeration, and mechanical treatment strategies. Discover how RAS conserves water and land, minimises disease risk, and offers flexibility in farm siting, while recognising the trade-offs of energy demands and infrastructure costs. Learn why RAS is gaining momentum as a key innovation in Asia's sustainable aquaculture future.

This video by Montakan Tamtin, Department of Fisheries, features two presentations from Thailand’s delegation to the 3rd High-Level Meeting on Aquaculture Transformation in Asia and the Pacific Region. The first showcases innovation and nature-based solutions in aquaculture via the IDRC-funded AQUADAPT Project; the second presents Thailand’s pilot initiative for low-carbon shrimp farming under an FAO Technical Cooperation Programme.

This video by Chokanan Prompichai, NACA, presents two promising innovations aimed at reducing antimicrobial use (AMU) in aquaculture, showcased as part of Thailand’s National Innovation and Investment Plan (NIIP) and via the IDRC-funded InnoVet-AMR 2.0 Project. NanoVac, developed by AIT, uses nanobubbles to deliver vaccines to tilapia, while ShrimpGuard, developed by BIOTEC and KU, is a bacteriophage-based solution for managing shrimp diseases. Both technologies offer potential to combat antimicrobial resistance (AMR) without leaving chemical residues. The presentation compares their readiness, challenges, and adoption, incorporating feedback from shrimp farmers across Thailand. It highlights the need for cost-effective, easy-to-use solutions that align with farmers' real-world needs and regulatory frameworks.

In this issue:

• From risk to resilience: Innovative crop insurance solutions for securing shrimp aquaculture in India
• Efforts to rejuvenate primary fisher cooperative societies in South 24 Parganas District, West Bengal
• Captive production of Gangetic mystus (Mystus cavasius): A guide for farmers
• Shrimp farm biosecurity in Saudi Arabia: A journey from past practices to future vision
• Wolffia globosa (duckweed) in aquafeeds for profitability and eco-friendly sustainable aquaculture
• NACA Newsletter

The Gangetic mystus (Mystus cavasius) is a small indigenous freshwater catfish valued for its taste and nutritional qualities, with high market demand across South Asia. This article offers a practical guide for farmers on the captive breeding and production of M. cavasius, encompassing key stages from broodstock management to grow-out culture. Captive production methods are critical for ensuring seed availability and enhancing the commercial viability of this species. The article outlines protocols for brood selection, hormone-induced breeding, egg fertilisation, larval rearing, and fingerling development, with emphasis on water quality, feed regimes, and optimal stocking densities.

Special attention is given to improving larval survival through early indoor rearing, proper husbandry, and the use of live and formulated feeds. The slow-growing nature of M. cavasius necessitates low-density stocking and extended grow-out periods, typically yielding less than 1 tonne/ha/year. Despite the modest productivity, the species commands strong regional demand at 30–40 g market size. The guide also addresses common health issues and preventive practices, stressing the importance of water quality and early disease intervention.

This article examines recent initiatives to rejuvenate primary Fisher Cooperative Societies (FCSs) in South 24 Parganas District, West Bengal, highlighting their critical role in advancing sustainable fisheries, rural livelihoods, and social protection. It outlines the structural, administrative, and policy frameworks that support FCS operations, particularly the government’s lease-based allocation of large freshwater bodies to cooperatives. The article also reviews the election procedures conducted under the West Bengal Cooperative Societies Act to reconstitute governance in 43 active societies, ensuring compliance and eligibility for state support.

Through detailed case data and programme reports, the article documents the outcomes of targeted schemes such as input distribution for sewage-fed and large-scale fish culture, equipment provisioning, pension benefits, and capacity-building training. It emphasises the cooperative model's effectiveness in managing natural resources, strengthening community self-governance, and enhancing productivity. With a focus on practical reforms and institutional accountability, the South 24 Parganas experience offers insights into scaling cooperative-led fisheries development in similar socio-ecological contexts.

With the implementation of new aquatic animal disease reporting arrangements from January 2021 NACA is publishing reported aquatic animal diseases submitted by countries in the Asia-Pacific region. This report covers the fourth quarter of 2024 and the original and updated reports can be accessed from the QAAD page.

The project evaluated the effectiveness of various types of nature-based solution (NbS) in Fiji that contribute to climate change resilience by enabling off-grid farm operations and reducing reliance on costly fossil fuels. Aquaculture enterprises were assessed for this project based on the NbS they utilised and the potential benefits they offer in mitigating climate change impacts and enhancing production systems in Fiji. Four enterprises were selected, and their descriptions are provided within.

The project evaluated the effectiveness of various types of nature-based solution (NbS) in Thailand that contribute to climate change resilience by enabling off-grid farm operations and reducing reliance on costly fossil fuels. Aquaculture enterprises were assessed for this project based on the NbS they utilised and the potential benefits they offer in mitigating climate change impacts and enhancing production systems in Thailand. Three enterprises / innovations were selected and are described within.

The project conducted a preliminary survey of the effectiveness of various types of nature-based solution (NbS) in use in the Philippines that contribute to climate change resilience by enabling off-grid farm operations and reducing reliance on costly fossil fuels, renewable materials and improved designs that enhance efficiency. Aquaculture enterprises were assessed for this project based on the NbS they utilised and the potential benefits they offer in mitigating climate change impacts and enhancing production systems.

Based on BFAR Regional Field Office Submissions, 50 aquaculture innovations nationwide have been identified to date. The list will be extended and screened as further regions report, in cooperation with the BFAR National Research Centers.

This report summarises the proceedings of the 23rd meeting of the Regional Advisory Group on Aquatic Animal Health, held 14-15 November 2024 by video conference. The role of the group is to review trends in disease and emerging threats in the region, identify developments in global disease issues and standards, to evaluate the Quarterly Aquatic Animal Disease Reporting Program and to provide guidance on regional strategies to improve aquatic animal health management.

In this issue:

• Promoting farmed shrimp consumption in India’s domestic market: A step towards sustainability
• Leveraging indigenous minor carp for sustainable aquaculture in Northeast India
• Shaping the future of Indian aquaculture: A path to captive catfish seed success
• Sustainable freshwater snail farming: Advancing nutrition security and rural livelihoods in Northeast India
• Promotion and protection of small fish species through farming: An initiative in Tripura
• NACA Newsletter

Small indigenous fish species (SIS) are a rich source of essential nutrients, including proteins, vitamins, and minerals, making them a vital component of rural diets. Despite their nutritional significance, SIS are often undervalued and excluded from aquaculture in favor of larger commercial species.

This study highlights an initiative by ICAR-CIFA in Tripura to promote and protect small fish species through sustainable farming practices. Training programs were conducted to educate local farmers on breeding, feeding, and rearing techniques tailored to SIS. Live food production was emphasised to improve larval survival rates, and mixed-species culture strategies were developed to enhance production efficiency. The initiative demonstrated that small fish farming is a viable livelihood option, particularly in backyard water bodies, providing food security, income generation, and biodiversity conservation.

Indian aquaculture has expanded beyond major carps to include diverse species such as catfish, driven by high consumer demand for their taste, soft flesh, and live marketability. However, the sector faces a major challenge: the lack of captive seed production. Relying on wild seed collection is unsustainable, necessitating the development of controlled breeding techniques. This article provides an overview of induced breeding and seed production methods for key catfish species, including Clarias batrachus, Heteropneustes fossilis, Wallago attu, Ompok spp., Mystus cavasius, Rita chrysea, Horabagrus brachysoma, and Pangasius pangasius. By adopting these techniques, Indian fish farmers can enhance catfish seed availability, supporting the government’s push for aquaculture diversification. Sustainable captive breeding will reduce pressure on wild populations while ensuring a reliable supply of high-quality catfish seed for commercial farming.

Northeast India, a region rich in freshwater biodiversity, has significant potential for aquaculture development, yet faces challenges due to its hilly terrain, cold climate, and limited availability of suitable fish species. Indigenous minor carps, such as Labeo bata, L. gonius, Cirrhinus reba, Osteobrama belangeri, Bangana devdevi, and B. dero, offer a promising alternative to Indian major carps due to their adaptability to local conditions, shorter culture periods, and high market demand. These species perform well in lower temperatures, shallow waters, and seasonal ponds, making them ideal for sustainable aquaculture in mid- and high-altitude areas. Their omnivorous feeding habits allow for cost-effective diets, reducing reliance on expensive commercial feed. Expanding minor carp aquaculture will contribute to food security, economic growth, and the conservation of native fish species in Northeast India.

With the implementation of the new aquatic animal disease reporting in the Asia Pacific region from January 2021 NACA is publishing reported aquatic animal diseases submitted by countries in the Asia-Pacific region. This report covers the third quarter of 2024 and the original and updated reports can be accessed from the QAAD page.

In this issue:

• Some practices and techniques in cost-effective small and medium-scale aquaculture in West Bengal
• Food and feeding habits of some peninsular carps
• Inland saline aquaculture: Prospects and challenges
• A success story of freshwater prawn farming as an alternative livelihood for self-help and user groups in Mayurbanja District, Odisha, India
• NACA Newsletter

Carps are a vital component of global freshwater fish production, particularly in India, where both Indian major carps and indigenous species contribute to aquaculture. This study reviews the food and feeding habits of select peninsular carps, highlighting their potential for aquaculture diversification and biodiversity conservation. Indigenous species such as Hypselobarbus pulchellus, Barbodes carnaticus, Labeo fimbriatus, Labeo kontius, and Tor khudree demonstrate adaptability to natural productivity, reducing reliance on artificial feeds. Gut content analyses reveal dietary patterns ranging from herbivory to omnivory, with species consuming vascular plants, algae, molluscs, and insects. Feeding behavior varies across life stages, with juveniles relying on zooplankton and diatoms, while adults shift to macrophytes and benthic organisms. Integrating these species into polyculture systems could enhance aquaculture efficiency and support conservation efforts for threatened endemic fish.

Small and medium-scale aquaculture in West Bengal has evolved to incorporate cost-effective, sustainable practices that reduce input costs while maintaining productivity. This article explores various low-cost aquaculture techniques used by rural fish farmers, emphasising farm-made feed formulations, pond fertilisation methods, and integrated farming systems. Farmers utilise non-conventional feed additives to enhance fish health and growth while reducing reliance on expensive commercial products. Fermented feed supplements and probiotic formulations have been successfully implemented to improve water quality and plankton production. Integrated fish farming, incorporating compost manure, vermicomposting, and polyculture with species like giant freshwater prawn, has increased productivity and economic returns.

With the implementation of the new aquatic animal disease reporting in the Asia Pacific region from January 2021 NACA is publishing reported aquatic animal diseases submitted by countries in the Asia-Pacific region. This report covers the second quarter of 2024 and the original and updated reports can be accessed from the QAAD page.