Lethrinus olivaceus Valenciennes, 1830

Longface emperor

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Perciformes \| Lethrinidae \| Lethrininae
Synonyms	Lethrinus longirostris, Lethrinus rostratus, Lethrinus rostratus specificus, ... more
Common names	Longnose pigface bream, Emperor, Longnose emperor, ... more

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AquaMaps Data sources: GBIF OBIS

Main reference

Carpenter, K.E. and G.R. Allen. 1989. (Ref. 2295)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 100.0 cm TL male/unsexed; (Ref. 2295); common length : 70.0 cm TL male/unsexed; (Ref. 2295); max. published weight: 14.0 kg (Ref. 9710)

Environment

Reef-associated; non-migratory; marine; depth range 1 - 185 m (Ref. 9710)

Climate / Range

Tropical; 28°N - 21°S

Indo-West Pacific: Red Sea and East Africa to Samoa, north to the Ryukyu Islands.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 10; Dorsal soft rays (total): 9; Anal spines: 3; Anal soft rays: 8. Probably the largest, longest-snouted lethrinid. Crimson cast on face and fins may develop in large courting males (Ref. 1602). Body color is gray, becoming lighter ventrally, often with scattered irregular dark blotches. The snout has wavy dark streaks. The upper jaw, especially near the corner of the mouth, is sometimes edged with red. Very similar to L. microdon, but more scales above lateral line and caudal fin more forked when young (Ref. 48635).

Largest and the longest-snouted lethrinid (Ref. 37816). Found in sandy coastal areas, lagoons, and reef slopes (Ref. 30573). Juveniles are found in shallow sandy areas. Often occurs in large schools. Adults deep along coastal slopes and drop-offs, usually solitary (Ref. 48635). 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 (Ref. 9775). Ref. 48635 reports maximum depth of occurrence.


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Reports of ciguatera poisoning (Ref. 2295)

Human uses
Fisheries: commercial


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Low, minimum population doubling time 4.5 - 14 years (K=0.06-0.25; tm=4.1-6; tmax=15)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Moderate vulnerability (40 of 100)	Very high

Entered by Luna, Susan M.

Modified by Bailly, Nicolas

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Page last modified by : elaxamana, 15 July 2009

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