NASA Sees Early Signs El Niño Could Impact US Fish Supply
Summary
NASA satellites have detected early signs that a strong El Niño is changing ocean conditions in the Pacific. This climate event could affect fish and marine life along the U.S. West Coast and other Pacific regions by altering water temperatures and nutrient availability.Key Facts
- El Niño is a natural climate pattern with warmer Pacific Ocean waters and shifts in winds and currents.
- NOAA predicts a very strong El Niño through 2027, possibly the strongest since 1950.
- NASA satellites have observed warmer sea surface temperatures, higher sea levels, and less phytoplankton in affected areas.
- Phytoplankton are tiny ocean plants that form the base of the food chain, supporting fish and marine animals.
- Warmer waters reduce upwelling, the movement of cold, nutrient-rich water to the surface, which lowers food supply for marine life.
- The U.S. West Coast could see weaker coastal upwelling and less nutrient supply, impacting fish growth and reproduction.
- Some cold-water fish may move north or deeper, while some warm-water species like tuna might come closer to shore.
- Effects will vary by species and location, with some fisheries affected more than others.
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