Seal Beach beaches and coastlines across Southern California are currently experiencing an increase in sick or stranded sea lions, dolphins, and seabirds due to a harmful algae bloom caused by Pseudo-nitzschia, a marine diatom that produces domoic acid—a powerful neurotoxin.
This toxin accumulates in anchovies, sardines, and shellfish, working its way up the marine food chain. Animals that ingest it may suffer from confusion, seizures, and disorientation. Seabirds may even appear inland or in unusual places.
If you see a sick or stranded marine animal:
- Do NOT approach or push the animal back into the water.
- Keep at least 50 yards away and ask others to do the same.
- If safe, take a photo or video to help rescuers assess.
- Call the Pacific Marine Mammal Center at 949-494-3050 ext. 9 or Seal Beach Animal Control at (562) 799-4100 ext. 1106 right away.
Marine Wildlife Symptoms:
- Mild: off balance, grounded or sluggish
- Moderate: unsteady flying/walking, curled toes, minor injuries
- Severe: seizures, swaying or weaving head movements, eyes closed, curled limbs
- While it can be heartbreaking to see, never try to return a stranded dolphin or sea lion to the water. These animals need urgent medical care, and quick reporting makes a huge difference in outcomes.
Thank you to our amazing partners—Marine Safety, Lifeguards, Park Rangers, Public Works, and our community—for your continued support and vigilance. Let’s keep our coastline and its wildlife safe.
