Santa Barbara County Sheriff Kevin Huddle also said authorities have already set up an identification process.
FBI agents are involved in investigating the wreck of a pleasure craft.
Earlier it was reported that after an emergency with a vessel off the coast of California, nine people were reported missing.
The ship Conception, aboard which were lovers of diving and sea fishing, sank on September 2, 18 meters from the northern coast of Santa Cruz.
Five crew members managed to survive.