Mackerel scad is a type of fish found in the tropical waters of the Atlantic, Pacific, and Indian oceans. Apart from its scientific name, Decapterus macarellus, mackerel scad is also known by various synonyms. Some of these synonyms include Spanish mackerel, greenback mackerel, seerfish, shad mackerel, and cunene. These names are often used interchangeably based on the region or specific species of mackerel scad. Mackerel scad is a popular fish used in various cuisines across the globe, including Japanese, Caribbean, and Indian. Its firm texture, mild flavor, and versatility make it a favorite among chefs and home cooks alike.