El Niño, a significant weather phenomenon characterized by warmer sea surface temperatures, is already disrupting fisheries across the Pacific. In Peru, government officials have canceled the fishing season for anchovies, crucial for the nation's economy, while Southern California fishers report record tuna catches.
El Niño's Disparate Effects on Fisheries
The Indian government anticipates a season of reduced Indian mackerel availability, while recreational and commercial fishers in Southern California are experiencing unprecedented success with tuna. This highlights how El Niño creates both winners and losers within the fishing industry, leading to instability for fishers and fluctuations in consumer prices.
“People are worried,” said Juan Carlos Sueiro, an economist and fisheries director for the nonprofit Oceana Peru. As climate change contributes to more frequent and severe El Niños, “our vulnerability is increasing.”
How El Niño Affects Fish Populations
El Niño occurs every two to seven years in the tropical Pacific Ocean, named after Peruvian fishers who observed its effects on their catches. Under normal conditions, trade winds push warm water toward Asia, allowing cold, nutrient-rich water to rise through a process known as upwelling. This supports the growth of algae, vital for anchovies and other species.
During an El Niño, weakened trade winds inhibit upwelling, resulting in less algae. Fish like anchovies are forced to search deeper for food, which stresses their populations and makes them harder to catch. Conversely, warm-water species such as skipjack tuna migrate closer to the Americas, becoming more accessible to fishers.
The Economic Impact of El Niño on Fishing
In Peru, the government has issued an indefinite ban on anchovy fishing from April to July to protect dwindling populations. Humberto Speziani, a former director of the International Marine Ingredients Organization, noted that vessels equipped with sonar are locating anchovies over 100 meters deep, beyond the reach of traditional fishing nets.
Seafood prices are also likely to fluctuate. Wild salmon, for example, can become undernourished during El Niño, leading to higher prices for consumers. In local Peruvian markets, prices for jack mackerel and corvina have reportedly doubled, pushing families to seek alternatives like chicken.
- Anchovy fishing season in Peru: Canceled
- Southern California tuna catches: Increased by nearly 300,000 fish
- Jack mackerel and corvina prices: Doubled
Despite the chaos, some Southern California fishers view El Niño as a “special treat,” highlighting the mixed outcomes of this natural phenomenon. With its impacts reaching beyond just fishing economies, El Niño poses threats to marine ecosystems, including coral reefs and kelp forests.
🤖 This article was rewritten by Feed and Figures' editorial AI from a report originally published by Grist. Facts and quotes are preserved from the original; the rewrite focuses on clarity and structure. For the unedited original, see the source link below.
