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The Warm Pacific Moved Food, Predators and Poison
California's six-month marine heat wave is shifting forage fish, amplifying harmful algae and changing where large animals appear.
Summary
California's six-month marine heat wave is shifting forage fish, amplifying harmful algae and changing where large animals appear.
NOAA scientists told AFP that California surface waters are running roughly three to four degrees Celsius above normal after about six months of marine heat. Anchovies and sardines are moving deeper or north, whale and dolphin sightings have fallen in some areas, and warm conditions favor domoic-acid blooms that can poison marine mammals. Juvenile white sharks have also appeared nearer shore. The observations describe a developing regional event, not a census of every species or a forecast of exact losses.
Why it matters
California's six-month marine heat wave is shifting forage fish, amplifying harmful algae and changing where large animals appear.
Limits and context
- The observations describe a developing regional event, not a census of every species or a forecast of exact losses.
Key claims
California's six-month marine heat wave is shifting forage fish, amplifying harmful algae and changing where large animals appear.
Qualification: The observations describe a developing regional event, not a census of every species or a forecast of exact losses.
Evidence: source-2026-07-27-015
Sources
- AFP via Phys.org: California marine heat waveAFP via Phys.org · secondary reporting
Corrections
No corrections have been recorded for this story.