Barramundi belong to the sea perch family. They have a distinct pointed head, concave forehead, large jaw and rounded tail fin. They have a dorsal fin with seven or eight strong spines and a second dorsal fin of 10 or 11 rays. Freshwater barramundi are a greenish-blue on the upper body and have tail fins that are dark brown to black. Saltwater barramundi have a silvery body and yellow fins.