What is "mackerel scad"

mackerel scad \mackerel scad\, mackerel shad \mackerel shad\n. (Zool.) A small silvery fish ( Decapterus macarellus) found from Nova Scotia to Brazil.

n. small silvery fish; Nova Scotia to Brazil [syn: mackerel shad, Decapterus macarellus]

The mackerel scad, Decapterus macarellus, is a species of fish of the family, Carangidae. While mackerel scad can be considered gamefish, they are usually used as bait. They are popular eating fish in the Hawaiian islands, where they are called `opelu.