The main difference is the fish pattern.

The mackerel is a common edible fish found near the coasts of the western Pacific and Atlantic Oceans, where it lives in schools. In the Chinese context, it should be distinguished from the "mackerel", one of China's four major fish. Mackerel average length of 30 to 50 centimeters, life expectancy can be up to 11 years, it to devour plankton and sturgeon, cod and herring spawned eggs to live. Mackerel is also known as "mackerel". Common name mackerel, Atlantic mackerel, Boston mackerel, tin-ker mackerel, Pacific mackerel, Japanese mackerel, chub mackerel, American mackerel, blue mackerel, bamboo mackerel.

Mackerel of the genus Scomberomorus (Scomberomorus) any of several species of mackerel . Also known as "Spanish mackerel " ". Body laterally flat, up to more than 1 meter long. Silver gray, with dark transverse lines or spots. Often grouped for long-distance migration. China's coastal production [~ fish] body is fusiform, living in the ocean, edible, but also an important raw material for cod liver oil. Also known as "blue point Spanish mackerel", "horse scallop fish", "swallow fish".