decapterus maruadsi is a warm water pelagic fish. They often gather in groups to cruise near the sea. It likes to migrate in groups, often floating in groups during the day, and phototaxis at night. decapterus maruadsi has a long-distance migratory habit. The western side of Taiwan and the north of Taiwan are the wintering grounds, respectively, with a water depth of 100-150 meters. The fish in the wintering grounds north of Taiwan swim in batches to the coastal waters of Zhejiang from March to April, and enter the Zhoushan fishing ground from May to June. From October to October, they are scattered in the central and northern Zhejiang and the Yangtze River estuary fishing grounds, and they return to the wintering grounds from October to November.

Decapterus maruadsi is a polyphagous fish, and the composition of the food varies with the biological predominant species in the sea area. The Yangtze River Estuary of China and the coastal waters of northern Zhejiang mainly feed on krill and chaetognaths, followed by pteropods, amphipods, and other small fish. Foot cephalopods and shrimp, crabs and so on. The feeding intensity of adult fish varied greatly during the day and night, with the peak at dusk and dawn.
decapterus maruadsi is one of the main economic fish in China, which is sold fresh and preserved for consumption. Fish meat has a high content of histidine, and a long storage time after capturing decapterus maruadsi will accelerate the decomposition of histidine, produce a large amount of histamine, and cause allergic food poisoning after human consumption. Therefore, if you find that this type of fish is not fresh, do not eat it.