The blue runner is a small, spunky member of the Carangidae family that is valued as bait for big-game ﬁshing. It is an excellent food ﬁsh and is marketed fresh, frozen, and salted.
The body of the blue runner is bluish-green to brassy, silvery, or light olive above. There is a black, some what elongated spot near the upper end of the gill cover, and there may be faint bluish bars on the body. A characteristic feature is the blackish shading on the tips of the tail ﬁns. The blue runner is easily distinguished from the crevalle jack because it lacks the dark blotch found on the pectoral ﬁns of that ﬁsh.
This species usually weighs less than 1 pound and is typically 1 foot long; the all-tackle world record is an 11-pound, 2-ounce ﬁsh taken off Alabama.
Sexually mature when they reach 9 to 10 inches in length, blue runners spawn offshore from January through August.
Blue runners feed primarily on ﬁsh, shrimp, squid, and other invertebrates.