El Niño Disrupts Fisheries Across the Pacific

El Niño conditions are altering ocean temperatures, nutrient upwelling, and fish migration, creating sharply different outcomes for fisheries around the Pacific and Indian Ocean.

Peru’s anchovy fishery faces major supply and management risks, while warm-water species have increased near Southern California and Indian oil sardine availability may weaken in 2027. The same ocean changes also threaten coral, kelp, and other marine ecosystems and could raise seafood, fishmeal, and aquaculture costs.