About Scomber colias Gmelin, 1789
Atlantic chub mackerel, scientifically named Scomber colias Gmelin, 1789, is a long, streamlined fish with a deeply forked tail, and its entire body is covered in very small scales. Its first dorsal fin contains 9 or 10 spines, and is separated from the second dorsal fin by a gap that is at least as long as the base of the first dorsal fin. The anal fin originates directly below, or just behind, the starting point of the second dorsal fin. This fish has a silvery overall coloration: its upper surface features oblique zigzagging lines, while its paler belly is either spotted or marked with wavy lines. Ecologically, the Atlantic chub mackerel is an important pelagic forage species.
