Staff at the Aquarium of the Pacific released a rehabilitated 50-pound green sea turtle near the mouth of the San Gabriel River in Seal Beach on Thursday.

The Marine Mammal Center’s Morro Bay based operations rescued the sea turtle and brought it to the Aquarium of the Pacific for a medical evaluation and care because of the aquarium’s expertise in treating stranded and injured sea turtles.

The aquarium has rehabilitated and released several sea turtles in recent years, including green sea turtles and loggerhead sea turtles. Some have been fitted with satellite tracking devices that allowed scientists to gather data about their migration patterns and habitats.