Like most animals, all fish have skin. Many fish have an outer covering of scales. Scales protect fish, much like a suit of armor. All fish have a slimy covering of mucus.

Do fish have skin or scales?

A fish scale is a small rigid plate that grows out of the skin of a fish. The skin of most jawed fishes is covered with these protective scales, which can also provide effective camouflage through the use of reflection and colouration, as well as possible hydrodynamic advantages.

What fish has skin?

Fish known for having delicious skin include bass, barramundi, flounder, mackerel, salmon, and snapper. On the other hand, less tasty skin is found on monkfish, skate, swordfish, and tuna. Further, chefs are getting creative with fish skin on restaurant menus.