Sea lions and other marine mammals in Southern California are suffering from a serious poisoning event linked to toxic algae blooms. This situation is alarming experts, who describe it as one of the worst poisoning incidents in recent memory. The Marine Mammal Care Center in San Pedro has reported taking in at least 140 sea lions showing symptoms of domoic acid poisoning, a neurotoxin produced by harmful algae.
The issue has escalated to the point where beachgoers are being warned about the dangers posed by sick animals. A surfer recently experienced a frightening encounter with a sea lion that bit him while he was surfing off Ventura County. The surfer, Rj LaMendola, described the animal as “feral, almost demonic” as it aggressively stalked him. He later learned from wildlife experts that the aggressive behavior could be linked to the toxic algae bloom affecting local marine life.
Domoic acid poisoning can cause severe symptoms in sea lions, including seizures and disorientation. Animals may exhibit unusual behaviors, such as craning their heads in a motion called “stargazing,” or even falling into comas. Experts emphasize that people should keep their distance from any marine mammals that appear sick, as they can become aggressive without warning.
The Marine Mammal Care Center is struggling to cope with the influx of sick animals. Alongside the sea lions, at least 50 dolphins have also been stranded along the coast, with many facing euthanasia due to the severity of their condition. The center’s Chief Executive, John Warner, noted that the current situation is worse than a similar event in 2023, which resulted in the deaths of over 1,000 sea lions.
The toxic algae blooms are exacerbated by environmental factors, including climate change and human activity. Warmer ocean temperatures and nutrient runoff from urban areas contribute to the growth of harmful algae. Warner explained that these blooms are becoming more frequent and intense, posing a growing threat to marine mammals.
Treatment for affected animals involves tube feeding and intravenous fluids to manage their symptoms. However, the longer the blooms persist, the greater the risk of permanent brain damage for the animals. If they cannot be safely returned to the wild, many will have to be euthanized.
As the situation develops, the Marine Mammal Care Center is reaching out to local governments for support to prepare for future stranding events. With the upcoming elephant seal pupping season, the center anticipates a further strain on its resources. Warner urges the public to stay informed and respect the space of sick marine animals, emphasizing the importance of not crowding around them.
If you see a stranded marine animal, please call (800) 399-4253 for assistance. It’s crucial to allow trained professionals to handle these situations safely.