Inland Fisheries, Reservoir Aquaculture & Blue Economy: India's Freshwater Frontier

Reservoirs and Amrit Sarovars play a transformative role in India's inland fisheries sector, which contributes nearly 75% of total fish production. Reservoirs, spread over more than 31.5 lakh hectares, serve as major freshwater resources that support aquaculture and capture fisheries. The increasing productivity—from 50 kg/ha in 2006 to about 100 kg/ha today—demonstrates their growing importance in boosting national fish output, which has reached 197.75 lakh tonnes. Amrit Sarovars, developed under Mission Amrit Sarovar, further expand the scope of fisheries by utilizing local water bodies for economic and ecological benefits.

Beyond production, their socio-economic relevance is profound. These water bodies provide livelihoods to millions, especially in economically backward and water-scarce regions. They enhance food and nutritional security by supplying protein-rich food and create employment opportunities in allied sectors like feed supply, marketing, and processing. The integration of fisheries into these water systems aligns with the vision of Viksit Bharat@2047 by empowering rural communities.

Moreover, their decentralized nature promotes inclusive development. Community participation in Amrit Sarovar management and cooperative-based reservoir fisheries ensures equitable access and sustainability. Thus, reservoirs and ponds are not just ecological assets but also engines of rural economic transformation.

The focus on integrated development and value chain strengthening stems from the need to maximize economic returns and reduce inefficiencies in the fisheries sector. While India has achieved impressive growth in production, post-harvest losses, fragmented supply chains, and limited market access often reduce profitability for fish farmers. By developing infrastructure such as hatcheries, feed mills, cold storage, ice plants, and retail outlets, the government aims to create an end-to-end ecosystem that enhances productivity and income.

Another key reason is to improve market access and price realization. Fish Farmer Producer Organizations (FFPOs) and cooperatives play a crucial role in aggregating produce, enabling economies of scale, and strengthening bargaining power. This reduces the exploitation by middlemen and ensures better income stability for small and marginal fishers. The cluster-based approach by the National Fisheries Development Board (NFDB) further enhances competitiveness by identifying and addressing localized gaps in production and processing.

Strategically, this approach supports sustainable and inclusive growth. It promotes diversification of species, adoption of modern technologies, and better resource utilization. By integrating production with processing and marketing, India can also enhance its export potential, thereby contributing to economic growth and rural development simultaneously.

Cage culture technology has revolutionized reservoir fisheries by enabling controlled and intensive aquaculture within natural water bodies. These cages, made of synthetic mesh and anchored or suspended in reservoirs, allow for continuous water exchange, ensuring adequate oxygen and nutrient flow. This controlled environment facilitates better feeding practices, disease management, and monitoring, thereby significantly improving fish survival and growth rates.

The technology has directly contributed to doubling productivity levels. Fish productivity in reservoirs has increased from around 50 kg/ha in 2006 to nearly 100 kg/ha today. This has been supported by government initiatives such as the Blue Revolution and Pradhan Mantri Matsya Sampada Yojana (PMMSY), which provide subsidies for quality seed, feed, and infrastructure. The introduction of species like Tilapia and Pangasius, alongside traditional Indian major carps, has further enhanced output and diversification.

Additionally, cage culture promotes efficient resource utilization. It allows farmers to utilize underexploited water bodies without requiring land ownership, making it particularly beneficial for marginalized communities. Innovations such as circular cages are improving scalability and adaptability. Thus, cage culture is a key technological driver in achieving higher productivity and sustainable aquaculture growth.

The case of Bimal Chandra Oran from Jharkhand exemplifies the transformative potential of reservoir fisheries. As a member of a cooperative society in the Chandil reservoir, he adopted cage culture technology with support in the form of subsidized seed, feed, and capacity-building training. Starting with just two cages, he successfully cultured species like Tilapia and Pangasius, demonstrating the viability of scientific aquaculture practices in rural settings.

The economic outcomes have been significant. Over time, he achieved an annual production of around three tonnes of fish, generating a turnover exceeding ₹3 lakh. This not only improved his livelihood but also created ripple effects in the local economy through employment and increased demand for allied services. The cooperative model ensured access to markets, reducing dependency on intermediaries and stabilizing income.

This example highlights key success factors. These include institutional support, technology adoption, skill development, and market linkage. It underscores how targeted government interventions and community-based approaches can empower individual farmers and scale up fisheries development across regions.

Despite its potential, reservoir-based fisheries development faces several structural and operational challenges. One major issue is the multiplicity of agencies controlling fishing rights, which complicates governance and data collection. This fragmentation often leads to inefficiencies in policy implementation and conflicts among stakeholders. Additionally, lack of adequate infrastructure such as cold storage and transportation facilities hampers the value chain, leading to post-harvest losses.

Environmental and ecological concerns also need careful consideration. Overstocking, introduction of non-native species, and intensive aquaculture practices can disrupt local ecosystems and biodiversity. Water quality degradation and disease outbreaks pose further risks to sustainability. Moreover, small and marginal fishers often lack access to capital, technology, and training, limiting their ability to benefit from modernization initiatives.

However, these challenges can be mitigated through targeted interventions. Strengthening institutional coordination, promoting sustainable aquaculture practices, and enhancing capacity-building initiatives are essential. The cluster-based approach and integrated value chain development offer promising solutions, but their success will depend on effective implementation, monitoring, and community participation.

The cluster-based approach aims to enhance efficiency and competitiveness by treating a group of reservoirs as an integrated unit. Under this model, the National Fisheries Development Board (NFDB) identifies sectoral gaps in production, processing, and marketing within a defined cluster. For instance, the recently announced cluster for Halalai and Indra Sagar dams in Madhya Pradesh focuses on creating end-to-end solutions, including infrastructure development and institutional strengthening.

This approach offers multiple advantages. By aggregating fish farmers through cooperatives and FFPOs, it enables economies of scale, reduces costs, and improves market access. It also facilitates better planning and resource allocation, as interventions can be tailored to the specific needs of the cluster. Infrastructure such as hatcheries, feed mills, and cold chains can be developed more efficiently, benefiting all stakeholders within the ecosystem.

In the long run, the cluster model supports sustainable and inclusive growth. It promotes technological adoption, improves data collection, and enhances coordination among agencies. By replicating this model across states and union territories, India can unlock the full potential of its reservoir fisheries and move closer to achieving higher productivity targets, such as the ICAR-CIFRI projection of 300 kg/ha.