chub mackerel

The chub mackerel (Scomber japonicus) is a small mackerel species found in the Atlantic and northeastern Pacific oceans. It is characterized by a well-developed swim bladder. Mackerels, in general, are swift, streamlined fish belonging to the Scombridae family, known for their torpedo shape and finlets behind the dorsal and anal fins. They are carnivorous, feeding on plankton, crustaceans, mollusks, and small fish, and often school together. While the common mackerel (Scomber scombrus) lacks an air bladder, the chub mackerel possesses one. The Pacific chub mackerel is noted for its bright green color with vertical stripes. It's important to note that the term "chub" can also refer to freshwater fish of the carp family.123