El Nino Threatens Indian Ocean Fisheries in 2027
• The Central Marine Fisheries Research Institute (CMFRI) has issued a warning about the potential impact of El Nino-related warming on marine ecosystems. Rising sea temperatures in the Pacific Ocean are expected to intensify marine heatwaves, disrupting fish habitats and reducing the availability of Indian oil sardines in
• The warming effects are projected to spread to the northern Indian Ocean by April–May next year. This phenomenon could also affect other species like Indian mackerel, as thermal stress in the Arabian Sea and Bay of Bengal increases. Researchers have highlighted the sensitivity of these species to changing ocean conditions, emphasising the need for improved monitoring and predictions.
Impact & Risks
The decline in sardine and mackerel availability could significantly impact fishing incomes, coastal markets, and the supply of affordable seafood in India. Fish may migrate to cooler habitats, become less abundant in traditional fishing grounds, or fail to reach their usual size. This could lead to higher seafood prices and economic strain on fishing communities. Additionally, the disruption of marine ecosystems may affect the broader food chain, including aquaculture industries reliant on fishmeal. Long-term ocean warming and overfishing could compound these risks, making adaptation measures critical.
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