Longface emperor (Lethrinus olivaceus)

Scientific name: Lethrinus olivaceus Valenciennes, 1830

Longface emperor (Lethrinus olivaceus)

The Longface emperor (Lethrinus olivaceus) is a marine fish of the family Lethrinidae. Native range: Indo-West Pacific, Red Sea and East Africa to Samoa, north to the Ryukyu Islands.

Biology

Largest and the longest-snouted lethrinid. Found in sandy coastal areas, lagoons, and reef slopes. Juveniles are found in shallow sandy areas. Often occurs in large schools. Adults deep along coastal slopes and drop-offs, usually solitary. Feeds mainly on fish, crustaceans, and cephalopods. In Palau, it spawns throughout the year on the first few days of the lunar month along the edges of reefs. Large individuals often ciguatoxic in New Caledonia and possibly elsewhere in Oceania. reports maximum depth of occurrence.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Lethrinus olivaceus
Family
Lethrinidae (Emperors or scavengers)
Order
Perciformes (Perch-like fish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
100.0
Common length
70.0
Depth range
1–185 m (3–607 ft)
Environment
Marine; reef-associated; non-migratory; depth range 1 - 185 m
Climate
Tropical
Distribution
Indo-West Pacific: Red Sea and East Africa to Samoa, north to the Ryukyu Islands.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Reports of ciguatera poisoning
Uses
Fisheries: commercial
Resilience
Low, minimum population doubling time 4.5 - 14 years (K=0.06-0.25; tm=4.1-6; tmax=15)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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