Silver Trevally

Scientific Name: Pseudocaranx dentex
Family: Jacks - Carangidae
Maximum Size: 94cm
Identification: Bluish silver with mid-body yellowish stripe to tail and yellowish edge below rear dorsal and anal fins to tail; black spot on rear gill cover.
Favourite: Pairs or form small schools.
Hide-out: Deep bottom feeders to 200m; shallower in cool water.
Location: Pacific - Indonesia to Hawaii, French Polynesia and Easter I.

Golden Trevally

Scientific Name: Gnathanodon speciosus
Family: Jacks - Carangidae
Maximum Size: 140cm
Identification: Juveniles / Young Adults - Bright yellow to silver with 7-11 black bars are replaced by a few black patches or spots on adults; fins yellow.
Favourite: Small groups of juveniles to 5m often accompany large pelagic fishes. Tiny juveniles often with jellyfishes.
Hide-out: Coastal, lagoons and outer reefs.
Location: Indo-Pacific - Red Sea to far eastern Pacific.

Orange-Spotted Trevally

Scientific Name: Carangoides bajad
Family: Jacks - Carangidae
Maximum Size: 61cm
Identification: Brassy silver to yellow-orange with many small orange spots on sides.
Favourite: Solitary or form small groups.
Hide-out: Coastal reefs and outer slopes to 70m.
Location: Indo-Asian Pacific - Red Sea to Papua New Guinea, north to S.W. Japan.

Gold-Spotted Trevally

Scientific Name: Carangoides fulvoguttatus
Family: Jacks - Carangidae
Maximum Size: 130cm
Identification: Silvery with many small golden or brassy spots; often 5 faint darkish bars on side; large adults have 3 or 4 dark blotches along middle of side.
Favourite: Solitary or form schools.
Hide-out: Coastal reefs, lagoons and outer slopes to 100m.
Location: Indo-Asian Pacific - Red Sea and E. Africa to N. Australia, north S.W. Japan.

Blue Trevally

Scientific Name: Carangoides ferdau
Family: Jacks - Carangidae
Maximum Size: 70cm
Identification: Silvery; rear dorsal, anal and tail fins tinted yellowish green; usually display 5-7 chevron bars.
Favourite: Form schools.
Hide-out: Lagoons and outer reefs, often over sandy areas to 60m.
Location: Indo-Pacific - Red Sea and E. Africa to Hawaii. S.W. Japan to New Caledonia.

Bludger Trevally

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.

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.