It is very similar to a tuna, but has some differences.  The main difference are small black dots on the tunny's belly. There are also 3-4 stains underneeth the side fin.

It can grow up to 17 kg of weight and the biggest ones are always in the open sea. The smaller ones in houls eith other fish, particularly in some seasons. They are a very important part of middle game fishing in the Adriatic when other fish are away. They mature with 40 cm.