There are more than 100 species of fish in the Southern Ocean, while there are more than 2,000 species of fish in other oceans around the world. In comparison, fish in the Southern Ocean are scarce, especially near the surface. In the past, people did not pay enough attention to Antarctic fishes, did not study them deeply, and knew little about them. With the deepening of people's understanding of the Southern Ocean, the fish resources of the Southern Ocean have attracted increasing attenti...