Scientific Name
Seriola rivoliana

Common Name
Longfin yellowtail

Biology
Dorsal spines (total): 8; Dorsal soft rays (total): 27-33; Anal spines: 3; Anal soft rays: 18 - 22. Body elongated, moderately deep, and slightly compressed; supra-maxillary very wide; lower branch of first gill arch with 15 to 18 gill rakers in individuals greater than 20cm standard length; anterior lobe of second dorsal fin deep; caudal peduncle with dorsal and ventral fossae; lateral line forming a dermal keel on the caudal peduncle; color highly variable when fresh; back brown, olive, or blue green; flanks and belly paler; nape with a dark vertical bar and a dark line extending back from the eye in adults (Ref. 55763). Olivaceous to bluish green above, lighter below and occasionally with brassy or lavender reflections; adults with dark nuchal bar; midside of body with faint amber stripe; fins dark except for the pelvic fins which are white ventrally (Ref. 3197).

Classification

Classified By

Valenciennes, 1833

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Jacks and pompanos (Carangidae)

Distribution

Region

Circumglobal. Indo-West Pacific

Distribution

Circumglobal. Indo-West Pacific: Kenya south to South Africa (Ref. 3287) and east to Mariana and Wake islands in Micronesia, north to the Ryukyu Islands, south to New Caledonia and the Kermadec Islands (Ref. 8879). Absent from the Red Sea and French Polynesia. Likely at Seychelles (Ref. 1623). Eastern Pacific: USA to Peru, including Galapagos Islands (Ref. 2850). Western Atlantic: Cape Cod, USA to northern Argentina (Ref. 9626). Distribution in the eastern Atlantic is not well established. Recently recorded from Lampedusa Island in the Mediterranean (Ref. 47878).

Range

43°N - 38°S, 180°W - 180°E

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

5 m

Depth To - meters

160 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 5 - 160 m (Ref. 9710), usually 5 - 35 m (Ref. 40849)

Trophic Level

4.5 s.e. 0.80 Based on diet studies.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

True

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

160 cm

Common Length

90.0 cm

Phylogenetic Diversity Index

PD50 = 0.5020 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: commercial; gamefish: yes

Vulnerability

High to very high vulnerability (72 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.)

Threat To Humans

Reports of ciguatera poisoning (Ref. 5217)

IUCN Red List Status

Not Evaluated