Another California city, Malibu, also passed legislation this year proclaiming that all cetaceans that pass by its coast have the right to life.
San Francisco's newly-passed resolution is not exactly a ban like the proposed Orca Welfare and Safety Act, Bridgeman of the International Marine Mammal Project told The Dodo.
"While the resolution is non-binding, it is significant because never before in California history have any cetacean rights been recognized," she said. "We do believe that it's going to boost the chances that the orca bill will be adopted, especially if other cities follow suit. With each resolution that gets passed, it becomes more and more difficult for SeaWorld to claim that cetaceans belong in captivity."
Sam Berg, a former SeaWorld trainer who appeared in the documentary "Blackfish," told The Dodo that the measure could lead to "an outright ban on whale and dolphin captivity in the U.S."
"I think this recent development sends a strong message to the California Assembly that California citizens care about the rights of whales and dolphins and that the Orca Welfare and Safety Act should pass," she added.