Overview

• 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%.