It is often active in shallow upper and middle seas, with a vertical range of over 100 meters. With krill, sardines, silver fish, male fish, etc. for food, itself is a ferocious fish prey. The eggs mature in batches and are produced in batches. The eggs are packaged in the glial egg sheaths. Each egg sheath covers several to several hundred eggs depending on the species. The egg production of different species varies greatly, ranging from several hundred. To tens of thousands.
Chinese squid (commonly known as "salmon") has an annual output of 4 to 50,000 tons. Its main fishing grounds are in the Bohai Sea of China, southern Fujian, Taiwan, offshore of Guangdong and Guangxi, and the Philippines, Vietnam, and Thailand.