| Affiliation: | 1. National Park Service, Pacific West Region, 333 Bush Street, , San Francisco, California 94104, U.S.A;2. The Marine Mammal Center, , Sausalito, California 94965, U.S.A;3. Life and Physical Sciences Department, Allan Hancock College, , Santa Maria, California 93454, U.S.A;4. Department of Biology, , University, 1600 Holloway Avenue, San Francisco, California 94132, U.S.A;5. Golden Gate Cetacean Research, , Corte Madera, California 94925, U.S.A;6. Legacy Research Institute, , Portland, Oregon 97232, U.S.A;7. Texas A&M University at Galveston, Department of Marine Biology, , Galveston, Texas 77553, U.S.A |
