吉打副叶鲹（shrimp scad又名 Alepes djedaba、 slender yellowtail kingfish）俗称甘仔鱼，为辐鳍鱼纲鲈形目鲈亚目鲹科的其中一种，，是一种分布广泛的鱼类，从印度洋到西太平洋的礁区与近海沿岸都可见其踪迹，常聚集成群游动，以虾子、水蚤为主食。体呈长椭圆形，眼睑有大量脂性，体背为蓝绿色，腹部属于银白，鳃盖后缘上方有一黑斑，再上去还有一白点，体长可达40公分，可做为食用鱼及游钓鱼。

The shrimp scad (Alepes djedaba) (also known as the slender yellowtail kingfish), is a species of widespread tropical marine fish of the jack family, Carangidae. The shrimp scad is widely distributed in the tropical and subtropical western Indian Ocean and areas of the eastern Pacific Ocean, ranging from South Africa in the west to Hawaii in the east, including Japan and Australia to the north and south. The species is commonly found on inshore reefs and sandy substrates. It has the common body profile of a scad, and may be difficult to differentiate from others in the genus Alepes. It is one of the larger scads, growing to 40 cm, but often is encountered at much smaller sizes. The shrimp scad often forms large schools, and is carnivorous, consuming a variety of crustaceans and small fish. It is of moderate importance to fisheries throughout its range.