Leerfish

The leerfish or garrick is a species of marine fish in the family Carangidae, and is native to the Mediterranean and the coastal waters of western Africa to the coastal waters of eastern South Africa. Also recorded in the Black Sea. These fish can reach 1.5 m in length and more than 30 kg [citation needed] in weight. They inhabit the coastal wave zone where they form small shoals to hunt other smaller fish, favouring mullets.

Source: Wikipedia