In 2019, Japan imported over 2.09 million kilograms of frozen swimming crab, primarily from Bahrain and China, with Tunisia introducing the gazami crab as a commercial fishery product. The gazami crab, also known as the waterside crab, is commonly consumed in Japan and is the world's most heavily fished crab species. The U.S. also imports the blue swimming crab, with Thailand, Vietnam, Sri Lanka, the Philippines, and Indonesia being the main suppliers. Japan's Ariake Sea is experiencing a decline in the gazami crab stock, prompting the development of a management policy to address the issue. The article also highlights the difference in crab prices based on size and shell hardness, and the preference for male crabs in summer and female crabs in winter due to their egg content.