Those are bonito's ;the most beloved and popular fishes of Black Sea.
You can grill or fry them and the geater ones are been put in a salt bed . A quite delicous product you can enjoy with Rakı (the turkish version of the Greek Ouzo) !
Portraits of Aphrodisian citizens which had decorated the top of the Portico Tiberius. Each of them was been made by a different sculpturer. So you can see there quite professional ones but also some quite amateur ones.