
Gut and carve the fish. Very carefully make a cut on the belly so that if there is caviar, do not damage it, since the caviar can also be salted. Remove the insides, as well as the film, rinse the fish well. Under a weak pressure of water, remove blood clots along the ridge with a teaspoon. Cut off the head, tail and abdomen. Separate the fillet, carefully trimming the carcass along the ridge; cut off the fins. There is no need to remove the skin, the ambassador is carried out with it.