State authorities are investigating the fatal shooting of a protected southern sea otter that had been rescued and returned to the ocean last year, officials said Tuesday.
The dead otter was found floating in Morro Bay in September and a necropsy determined it was killed with a pellet gun, the state Department of Fish and Wildlife said.
A numbered tag identified the animal as an otter that had previously been found tangled in a fishing line. It was rehabilitated and returned to the wild in July 2016.
The killing was the latest in a rash of sea otter crimes along the stretch of coastline between San Francisco and Los Angeles, the department said. A skinned otter was found in September. Three otters were shot to death in August 2016.
Southern sea otters, which are sometimes called California sea otters, are protected under the Endangered Species Act, the Marine Mammal Protection Act and California law.