A fishmonger in a white coat and hat is preparing a large tuna on a blue cutting board. The tuna is dark, almost black in color, and lies horizontally on the board. The fishmonger, wearing yellow-accented gloves, is using a knife to work on the fish. In the foreground, a display of fish on ice is visible. The display includes several brown flatfish, mackerel, and a red fish. The setting appears to be a clean fish market or kitchen, with stainless steel surfaces and tiled walls in the background.