Reliable, it's true. According to the information about mackerel, the ice mackerel of Mailihe in Doddoli is reliable and true. The cost of fish biological fraud is high, and mackerel is cheap, so there is no need for fraud. Gun (bà), also known as bamboo pod fish. Vertebrates, ichthyidae, a genus of fishes. Also known as blue mackerel. It is long and flat, about 1 m long and weighs more than 4.5 kilograms. The body is silvery gray with dark stripes or spots. The lateral line is wavy. The snout is sharp, the mouth is big and oblique. The teeth are flat and sharp, with 1 row in the upper and lower jaws. Scales are small or degenerated. There are 2 dorsal fins, and there are 7 ~ 9 small fins at the back of the second dorsal fin and the anal fin. The tail handle is thin and powerful. Tail fin fork It is a pelagic marine economic fish.