Mackerel fish, sometimes indicating the fish has vertical stripes similar to a scombroid mackerel: By extension, the term is applied also to other species such as the mackerel tabby cat, and to inanimate objects such as the altocumulus mackerel sky cloud formation. Most mackerel belong to the family Scombridae, which also includes tuna and bonito. Generally mackerel are much smaller and slimmer than tuna, though in other respects they share many common characteristics. Their scales, if present at all, are extremely small. Like tuna and bonito, mackerel are voracious feeders, and are swift and manoeuvrable swimmers, able to streamline themselves by
Atlantic chub mackerel IUCN has listed this species as Least Concern. Atlantic chub mackerel Atlantic chub mackerel ("Scomber colias") is a pelagic schooling species of mackerel found in the Atlantic Ocean, the Mediterranean Sea, and the Black Sea. It was originally thought to be a subspecies of the chub mackerel "Scomber japonicus colias". The Atlantic chub mackerel is a long, streamlined fish with a deeply forked tail, is all covered with very small fish scale. The first dorsal fin has 9 or 10 spines and is separated from the second dorsal fin by a space at least as long as its base. The