Black Sea Sargan is marine flock pelagic predatory fish of Garfishes family, floating with wave-like body bends, with a long  body almost arrow-shaped, covered with small, easily decaying scales, a large mouth with thin elongated jaws and a needle-shaped nose.

The color is contrasting: the back, the upper part of the trunk and head are dark, brownish-green with a blue or light brown shine; the sides of the body and abdomen are grayish-silver, light silver; along the sides there is a wide dark band with a bluish or purple shine, which passes to the head in adult fish. Sargan bones differ in green, in which they are stained by the green pigment of bile.

It is found both in weakly salty and in very salty water. Juveniles live mainly in surface layers of water, adult fish in daylight stay in the bottom layers of water, rise to the surface at night and often approach the shore itself.

The maximum body length is 70 cm, weight is up to 500 g but the usual dimensions in catches are 30-40 cm, weight is 50-70 g.

The basis of the Sargan diet is fish and crustaceans.

Spawning from late April to mid-September, mass spawning occurs from May to August. In late August – early September, winter migration lasts until mid-October.

Sargan has very tasty meat. Traditional methods of its preparation are pan frying, grilling or baking.