Oriental Bonito

Mouth moderately large. Laminae of olfactory rosette 21 to 39. Interpelvic process small and bifid. Body completely covered with very small scales posterior to the corselet. Swim bladder absent. Spleen large and prominent in ventral view. Liver with elongate left and right lobes and a short middle lobe. Back with narrow oblique stripes.

Caligus Infestation 2. Parasitic infestations (protozoa, worms, etc.)

Capsala Disease. Parasitic infestations (protozoa, worms, etc.)

Oceanodromous. Migrating within oceans typically between spawning and different feeding areas, as tunas do. Migrations should be cyclical and predictable and cover more than 100 km.

Dorsal spines (total): 1719; Analspines: 0; Analsoft rays: 14 - 16; Vertebrae: 44 - 45

A coastal species (Ref. 9340) found schooling with small tunas. Also found around some islands (Ref. 9684). Feeds on clupeoids, other fishes, squids and decapod crustaceans. Spawning varies with the monsoon season (Ref. 9684). Also caught with troll lines, encircling nets (Ref. 9340) and drift nets (Ref. 9684). Marketed mainly fresh; also dried-salted (Ref. 9684), canned and frozen (Ref. 9987).

fisheries: minor commercial; gamefish: yes; price category: high; price reliability: reliable: based on ex-vessel price for this species

廣佈於印度-太平洋之熱帶及亞熱帶海域，西起紅海、非洲東岸，東經夏威夷到美國加州一帶，北至日本九州北方，南至澳洲西南部。台灣四周海域均有出現，但以東部、東北部及南部為多。

本種可作生魚片，或煎、炸、煮、或加工製罐。恆春一帶1-6月，東部東澳、成功以3-6月漁獲最豐；有時定置網一網可捕十餘公噸。亦常為流刺網、一支釣、延繩釣等漁法所捕獲。

體紡錘形，橫切面近圓形，背鰭基底及頰部均具縱溝；尾柄細短，平扁，兩側各具一發達的中央隆起脊，尾鰭基部兩側另具2條小的側隆起脊。頭中大，稍側扁。吻尖突，大於眼徑。眼較小，位近頭的背緣。口中大，端位，斜裂；上下頜等長，上下頜齒具強大而尖銳齒1列，腭骨、鋤骨和舌上均具齒。第一鰓弓上之鰓耙數為11-14。體除側線及胸甲外，均裸露無鱗；左右腹鰭間具1大鱗瓣；側線完全，沿背側延伸至第二背鰭起點而緩降，再以波浪狀伸達尾鰭基。第一背鰭具硬棘XVII-XIX，與第二背鰭起點距離近，其後具6-7個離鰭；臀鰭與第二背鰭同形；尾鰭新月形。體背側藍灰色，並且有許多暗色縱紋，腹側淺色；第一背鰭尖端暗色；餘鰭灰色。

大洋性中表層洄游魚種，適溫13.5℃-23℃。群游性，游泳速度很快。以鯡、鯷等小魚、頭足類及十足類等為食。

The striped bonito (Sarda orientalis) is a species of marine perciform fish. They have been recorded at lengths of 102 centimetres (40 in), though they are commonly no longer than 55 centimetres (22 in). Distributed through the Indo-Pacific and East Pacific, the striped bonito is known to occur at depths from 1 to 167 metres (3 ft 3 in to 547 ft 11 in). They are called mackerel bonito.

A coastal species (Ref. 9340) that occurs in waters of temperatures from 13.5° to 23°C, schooling with small tunas. Also found around some islands (Ref. 9684). Spawning varies with the monsoon season (Ref. 9684). Feeds on clupeoids, other fishes, squids and decapod crustaceans. This species has been erroneously considered as a synonym of @Sarda chiliensis@. Also caught with troll lines, encircling nets (Ref. 9340) and drift nets (Ref. 9684). Marketed mainly fresh; also dried-salted (Ref. 9684), canned and frozen (Ref. 9987).