Toxic Algal Bloom in Southern California Threatens Marine Life and Public Safety

The worst algal bloom in the region's history has sickened over 140 sea lions and 50 dolphins, with aggressive behavior in affected animals raising public safety concerns.

• A toxic algal bloom producing domoic acid has caused severe neurological symptoms and deaths in marine mammals along the Southern California coast.
• At least 140 sea lions and 50 dolphins have been affected, with many requiring treatment or euthanasia due to advanced poisoning symptoms.
• The bloom, linked to climate change, nitrate runoff, and potentially wildfire retardants, is considered the worst in the region's history.
• Sick sea lions have exhibited violent behavior, including unprovoked attacks on humans, prompting officials to warn beachgoers to avoid approaching affected animals.
• Wildlife rescue centers are overwhelmed by the influx of sick animals, with survival rates for treated sea lions estimated at 50-65%.

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