Warming Waters, Falling Yields: Climate Change and the Future of India’s Shrimp Industry

Why It Matters

The industry’s vulnerability threatens India’s export earnings, food‑security supply chains, and the livelihoods of millions of coastal farmers, making climate resilience a strategic priority for the sector and the broader economy.

Key Takeaways

• Rising water temps increase shrimp disease outbreaks, cutting yields.
• Salinity swings raise feed costs and extend growth cycles.
• Small farms face widening resilience gap due to climate shocks.
• Recirculating and biofloc systems improve survival but need financing.
• Export concentration makes supply volatility a pricing risk.

Pulse Analysis

India’s shrimp farms have long powered the country’s seafood export engine, delivering over 300,000 tonnes to the United States alone in FY 2024‑25. Yet the same coastal zones that fuel production are now on the front lines of climate change. Incremental temperature rises push shrimp metabolism beyond optimal limits, weakening immunity and inviting pathogens like Early Mortality Syndrome and White Spot Virus. Coupled with erratic rainfall that destabilises pond salinity, these factors are driving higher mortality rates, longer grow‑out periods, and a steady erosion of profit margins, especially for operators without deep cash reserves.

In response, a wave of technology‑led adaptations is emerging. Recirculating aquaculture systems (RAS) and biofloc methods allow farmers to control temperature, oxygen, and microbial balance, dramatically reducing disease incidence. Climate‑controlled ponds, though capital‑intensive, provide a buffer against salinity swings and extreme weather. Parallel research into disease‑resistant shrimp strains promises genetic resilience without sacrificing growth efficiency. However, financing gaps persist; many smallholders lack access to affordable credit or insurance products that reflect climate volatility, limiting widescale deployment of these solutions.

The market implications extend beyond farm gates. Concentrated demand from the United States, China, and the EU makes India’s pricing power highly sensitive to supply consistency. As climate stress amplifies output variability, exporters risk losing negotiating leverage, prompting calls for diversification into emerging markets and value‑added products such as peeled or ready‑to‑cook shrimp. Policymakers must therefore craft integrated adaptation frameworks—combining infrastructure upgrades, early‑warning systems, and climate‑responsive insurance—to safeguard the sector’s long‑term sustainability and protect the economic engine that supports millions of coastal families.