Scientific Name	Thunnus orientalis   Pronounce			by: Guo-Shu Chen
Author	(Temminck & Schlegel, 1844)	Depth	- M
Chinese	太平洋黑鮪	Poisonous Fish	No
Family_Chinese	鯖科	Economic Fish	Yes
Family	F475　Scombridae	Edible Fish	Yes	Chinese In Mainland China	東方金槍魚
Max Length	300 cm	Aquarium Fish	No	Common Name	黑鮪、黑甕串、黑暗串、東方鮪、東方藍鰭鮪、黑串、金槍魚、烏甕串、串魚、魚因、烏暗串
Distribution in World	North Pacific Ocean	Distribution in Taiwan	East、South、North、North East、ShaoLiuChew、Greeb IS.
Habitats	Ocean、Coastal	Holotype Locality	Japan
Synonyms	Orcynus schlegelii, Thunnus saliens, Thunnus schlegelii, Thunnus thynnus, Thunnus thynnus orientalis, Thynnus orientalis
Reference	臺灣魚類誌(沈等, 1993)；Fishbase(2002)
Specimen List	ASIZP0806194. ASIZP0806195. ASIZP0806196. ASIZP0916194. ASIZP0916195. ASIZP0916196. NMMBP06104. ZMUCP74123-*. ZMUCP74128-*.
Barcode	2014-10-30,Kwang-Tsao Shao,CO1,100% 2014-10-30,Kwang-Tsao Shao,CO1,100% 2014-10-30,Kwang-Tsao Shao,CO1,100%
Common Name	Pacific bluefin tuna; Bluefin tuna
Redlist Status	Not in IUCN Redlist
Characteristic	Body fusiform, elongate, and slightly compressed. Teeth small and conical, in a single series. Gillrakers 27 to 34 on first gill arch. Two dorsal fins, separated only by a narrow interspace, second dorsal fin higher than first dorsal, the first with XIII to XV spines; second dorsal fin with 14 to 16 rays followed by 7 to 8 finlets; anal fin with 14 to 15 rays followed by 7 to 8 finlets; pectoral fins very short, less than 80% of head length; interpelvic process small and bifid. Body with very small scales; corselet of larger scales developed but not very distinct. Caudal peduncle very slender, bearing on each side a strong lateral keel between 2 smaller keels. Swimbladder present. Lower sides and belly silvery white with colourless transverse lines alternated with rows of colourless dots, visible only in fresh specimens; first dorsal fin yellow or bluish; the second reddish-brown; anal fin and finlets dusky yellow edged with black; median caudal keel black in adults.
habitats	Epipelagic, usually oceanic, but seasonally coming close to shore. Tolerates ample temperature intervals. Forms schools by size, sometimes with other scombrids. Migrates between June and September in a northward direction along the coast of Baja Californi
Distribution	known found in the North Pacific from Gulf of Alaska to southern California and Baja California and from Sakhalin Island in the southern Sea of Okhotsk south to northern Philippines. It is mainly found in eastern and southern Taiwanese waters.
Utility	Marketed fresh and frozen. The belly portion fetches particularly high prices when containing much fat.