Checklist of marine and estuarine fishes from the Alaska-Yukon Border, Beaufort Sea, to Cabo San Lucas, Mexico Author Love, Milton S. 0000-0003-0981-0061 love@lifesci.ucsb.edu Author Bizzarro, Joseph J. 0000-0002-2412-9357 joe.bizzarro@noaa.gov Author Cornthwaite, Maria 0000-0002-1528-3272 maria.cornthwaite@dfo-mpo.gc.ca Author Frable, Benjamin W. 0000-0003-4525-0671 bfrable@ucsd.edu Author Maslenikov, Katherine P. 0000-0003-0981-0061 love@lifesci.ucsb.edu text Zootaxa 2021 2021-10-19 5053 1 1 285 journal article 2792 10.11646/zootaxa.5053.1.1 75ffcff3-6336-4f6a-8d0b-94c082519099 1175-5326 5578008 295D03A4-589A-4E3F-B030-5121EF7D7398 Thunnus orientalis (Temminck & Schlegel, 1844) . Pacific Bluefin Tuna . To 271 cm ( 8.9 ft ) FL ( Foreman and Ishizuka 1990 ). Western Pacific Ocean north to Japan (Nakabo in Nakabo 2002 ), southern Kuril Islands ( Savinykh 1998 ), and southern Sea of Okhotsk; Shelikof Strait, Gulf of Alaska (Mecklenburg et al. 2002) to just inside southwest corner of Gulf of California ( Robertson and Allen 2015 ). Oceanic epipelagic; depth: surface to 1,426 m ( 4,677 ft ) (Kurt Schaefer, pers. comm. to M.L.). Previously considered a subspecies of Thunnus thynnus (Linnaeus, 1758) , raised to full species status by Collette (1999) . The size of more than 3 m ( 10 ft ) FL and weight of about 680 kg given by Mecklenburg et al. (2002), after Collette and Nauen (1983) , pertains to the Atlantic species, T. thynnus .