Scientific Name: Carangoides gymnostethus
Family: Jacks - Carangidae
Maximum Size: 90cm
Identification: Silvery with a few brown or yellow spots scattered on sides.
Favourite: Juveniles and young adults form schools, adults usually solitary.
Hide-out: Sheltered coasts and over deeper offshore reefs to at least 70m.
Location: Indo-Asian Pacific - Red Sea and E. Africa to N. Australia, north S.W. Japan.
Bludger Trevally
Bigeye Trevally
Scientific Name: Caranx sexfasciatus
Family: Jacks - Carangidae
Maximum Size: 100cm
Identification: Silver (males turn black when courting); small black spot on upper end of gill cover, white tip on fore lobe of rear dorsal fin; relatively large eye.
Favourite: Form large schools.
Hide-out: Most common on clear outer reefs to 50m.
Location: Indo-Pacific - Red Sea and E. Africa to far eastern Pacific. S.W. Japan to Australia.
Bluefin Trevally
Scientific Name: Caranx melampygus
Family: Jacks - Carangidae
Maximum Size: 100cm
Identification: Silvery iridescent blue to green with dense spotting on upper two-thirds of body, blue to bluish fins.
Favourite: Solitary or form schools.
Hide-out: Inhabit a variety of reef habitats, but most common on outer reefs to 190m; can be locally abundant.
Location: Indo-Pacific - Red Sea and E. Africa to far eastern Pacific. S.W. Japan to Australia.
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