[1] Natl Marine Fisheries Serv, Southwest Fisheries Sci Ctr, NOAA, La Jolla, CA 92038 USA
[2] Mote Marine Lab, Chicago Zool Soc Sarasota Dolphin Res Program, Sarasota, FL 34236 USA
[3] Natl Marine Fisheries Serv, Southwest Fisheries Sci Ctr, NOAA, La Jolla, CA 92037 USA
[4] 267 Bret Harte Rd, Sausalito, CA 94901 USA
[5] Duke Univ, Nicholas Sch Environm, Beaufort, NC 27710 USA
[6] CONANP, Anal Area Nat Protegida Reserva Biosfera Alto Go, En San Felipe, Baja Calif Nort, Mexico
[7] Cabo Expedit, Blvd Marina 6,Col Ctr, Cabo San Lucas 23450, Baja California, Mexico
[8] Museo Ballena & Ciencias Mar, Navarro S-N Entre Altamirano & Gomez Farias Col, La Paz 23000, Baja California, Mexico
[9] Comis Nacl Conocimiento & Uso Biodiversidad, Ensenada, Baja California, Mexico
[10] Ctr Invest Cient & Educ Super Ensenada, Dept Biol Conservac, Carretera Ensenada Tijuana 3918, Ensenada, Baja California, Mexico