Muro aji are warm-water swarms that swim in the middle and sometimes close to the bottom. In the long area, it is often mixed with the blue round trevally. The water layer is deep during the day, and it has a phototaxis habit at night. When the wind is calm, the tide is slow, and the southeast and south winds blow, it is easy to form clusters at dawn or dusk, and the optimum temperature for cluster formation is 19-21 °C. Muro aji is a juvenile fish of about 100 mm in length, and most of them live in symbiosis with jellyfish, jellyfish, and jellyfish.

The Muro aji manufacturer tells you that the larvae and juveniles use small-scale plankton as the main bait, and the larvae of krill, mysids and crustaceans are excluded from the juvenile to adult stage. In addition to plankton such as sardine larvae, there are also small fish and cephalopods. It is only distributed in the northwest Pacific region such as the coast of China, Japan and the Korean Peninsula.
The Muro aji manufacturer tells you that the larvae and juveniles use small-scale plankton as the main bait, and the larvae of krill, mysids and crustaceans are excluded from the juvenile to adult stage. In addition to plankton such as sardine larvae, there are also small fish and cephalopods. Muro aji manufacturers tell you that the types of feeding are related to the dominant species of bait organisms in the sea area. The feeding intensity was highest in spring and autumn, medium in summer and lowest in winter.