Can you identify this tuna?

Juvenile bluefin? Looks like someone got it with their albacore catch, happens several times a year in OR, WA, BC.
 
Looks more juvenile bluefin to me, not a good photo to ID properly though. Crazy amount of 10 to 30lb BFT down southern Cali right now.
 
Loining it will tell the tale. The bottom/belly loins are distinct on a bluefin which has a large proportion of belly towards the nape.
 
Key to Tunas and Mackerels

1.a. Dorsal fins are widely separated. Short pectoral fin. Wavy black bars on dorsal surface - Pacific Mackerel (Scomber japonicus) (64 cm / 25 in) - common species

1.b. Dorsal fins not widely separated - go to 2

2.a. Pectoral fins long (extend past the end of the first dorsal fin) - go to 3

2.b. Pectoral fins short (do not extend to the end of the first dorsal fin) - go to 5

3.a. Pectoral fins very long (extend past second dorsal fin) and are dark in color - Albacore (Thunnus alalunga) (137 cm / 54 in) - primary species

3.b. Pectoral fins do not extend past second dorsal fin and are yellow in color - go to 4

4.a. Second dorsal and anal fins elongate in adults. No striations (lines) on underside of liver - Yellowfin Tuna (Thunnus albacares) (1.9 m / 6.5 ft) - rare species

4.b. Second dorsal and anal are not elongate. Striations (lines) on underside of liver - Bigeye Tuna (Thunnus obesus) (2.4 m / 8 ft) - rare species

5.a. No dark stripes on body. White dots in lines on belly and up sides - Bluefin Tuna (Thunnus thynnus) (1.9 m / 6 ft) - rare species

5.b. Dark stripes along body. No white dots in lines - go to 6

6.a. Four to five horizontal black stripes along sides and belly - Skipjack Tuna (Euthynnus pelamis) (102 cm / 40 in) - rare species

6.b. Angled black stripes extending from mid-body onto back - Pacific Bonito (Sarda chiliensis) (102 cm / 40 in) - rare species
Identification_of_Tuna_and_Tuna-like_Spe-0005.pngIdentification_of_Tuna_and_Tuna-like_Spe-0004.png
 

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