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Lethrinus olivaceus Valenciennes, 1830

Longface emperor
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Lethrinus olivaceus   AquaMaps   Data sources: GBIF OBIS
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Australia country information

Common names: Longface emperor, Longnose emperor, Longnose emperor
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Reported from the Territory of Ashmore and Cartier Islands (Ref. 75154). Also Ref. 2295.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/as.html
National Fisheries Authority: http://www.csiro.au/
Occurrences: Occurrences Point map
Main Ref: Hoese, D.F., D.J. Bray, J.R. Paxton and G.R. Allen, 2006
National Database:

Common names from other countries

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Eupercaria/misc (Various families in series Eupercaria) > Lethrinidae (Emperors or scavengers) > Lethrininae
Etymology: Lethrinus: Greek, lethrinia, a fish pertaining to genus Pagellus.
  More on author: Valenciennes.

Environment: milieu / climate zone / depth range / distribution range Ekologi

marina revassocierade; ej vandrande; djupintervall 1 - 185 m (Ref. 9710).   Tropical; 33°N - 35°S, 33°E - 135°W

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Indo-West Pacific: Red Sea and East Africa to Samoa and Polynesia, north to the Ryukyu Islands; south to Australia.

Length at first maturity / Size / Vikt / Age

Maturity: Lm ?, range 34 - ? cm
Max length : 100.0 cm TL hane/ej könsbestämd; (Ref. 2295); common length : 70.0 cm TL hane/ej könsbestämd; (Ref. 2295); publicerad maxvikt: 14.0 kg (Ref. 9710)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 10; Mjukstrålar i ryggfenan (totalt) : 9; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 8. This species is distinguished by the following characters: body moderately slender, its depth 2.9-3.4 times in standard length; head length 1.1-1.3 times in body depth, 2.4-2.9 times in SL, dorsal profile near eye nearly straight or with small bump; snout length about 1.7-2.2 times in HL, measured without the lip the snout is 0.6-0.8 times in cheek height, its dorsal profile slightly concave, snout angle relative to upper jaw between 40° and 50°; interorbital space convex to flat; posterior nostril a longitudinal oblong opening, closer to orbit than anterior nostril; eye situated close to or not close to dorsal profile, its length 3.4-6.2 times in HL; cheek height 3 to 3.8 times in HL; lateral teeth in jaws conical; outer surface of maxilla smooth; D X, 9 with the 3rd or 4th dorsal-fin spine the longest, its length 2.4-2.8 times in body depth; A III,8 with the first soft ray usually the longest, its length almost equal to or slightly shorter than length of base of soft-rayed portion of anal fin and 1.3-1.7 times in length of entire anal-fin base; pectoral-fin rays 13; pelvic-fin membranes between rays closest to body with dense melanophores; cheek without scales; 46-48 lateral-line scales; 5 ½ scale rows between lateral line and base of middle dorsal-fin spines; usually 16-17 scale rows in transverse series between origin of anal fin and lateral line; 15 rows in lower series of scales around caudal peduncle; 6-9 scales in supratemporal patch; inner surface of pectoral-fin base without scales; posterior angle of operculum fully scaly. Colour of body grey, lighter ventrally, often with scattered irregular dark blotches; snout with wavy dark streaks, upper jaw, especially near corner of mouth sometimes edged behind with red (Ref. 114226).

Biologi     Ordlista (t.ex. epibenthic)

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). Very active and swims fast (Ref. 90102). 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). Caught mostly with handline and traps, occasionally by trawls and gill nets (Ref. 68703). Ref. 48635 reports maximum depth of occurrence.

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

Protogyny have yet to be confirmed for this species.

Main reference Upload your references | referenser | Koordinator | Medarbetare

Carpenter, K.E. and G.R. Allen, 1989. FAO Species Catalogue. Vol. 9. Emperor fishes and large-eye breams of the world (family Lethrinidae). An annotated and illustrated catalogue of lethrinid species known to date. FAO Fish. Synop. 125(9):118 p. Rome: FAO. (Ref. 2295)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 09 March 2015

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Reports of ciguatera poisoning (Ref. 2295)




Human uses

Fiskeri: kommersiell
FAO(Publication : search) | FishSource | Sea Around Us

Ytterligare information

Trophic ecology
Födoslag
Diet compositions
Food consumptions
Food rations
Predatorer
Ecology
Ekologi
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproduktion
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larver
Larvdynamik
Distribution
Länder
FAO områden
Ekosystem
Förekomster
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Anatomy
Gill areas
Hjärnstorlek
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fiskljud
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetik
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Vattenbruksprofiler
Avelslinjer
Ciguatera cases
Stamps, coins, misc.
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References
referenser

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Estimates based on models

Preferred temperature (Ref. 115969): 23.3 - 28.4, mean 27.1 (based on 1006 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01585 (0.01372 - 0.01830), b=2.97 (2.93 - 3.01), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Trofisk nivå (Ref. 69278):  4.0   ±0.4 se; based on diet studies.
Resiliens (Ref. 120179):  Låg, lägsta populationsfördubblingstid 4,5-14 år (K=0.06-0.25; tm=4.1-6; tmax=15).
Prior r = 0.28, 95% CL = 0.19 - 0.42, Based on 2 data-limited stock assessments.
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (40 of 100).
Price category (Ref. 80766):   Very high.