Bream.
This is not smoked fish.
This fish is first laid in layers in a barrel. Each layer is sprinkled with salt. A heavy stone is placed on top and left in a cold place for 3-4 days. Then the fish is washed under cold water for 15-20 minutes. After washing, the fish is hung to dry under the roof. It is necessary to limit the access of the sun and insects to the fish. After another 3-4 days, the fish can be eaten.
But in the photo with the plate in the foreground is caviar. It is salted and dried inside the fish.