A large number of California sea lions have been affected by domoic acid poisoning. The majority of cases have occurred recently.

The Marine Mammal Center has reported rescuing over 100 sea lions so far this year. Most of these rescues took place after July 1.

Typically, the center rescues around 75 sea lions, indicating a higher than usual number of cases this year. For more information on the situation, details are available from the center.