Lethrinus microdon, Smalltooth emperor : fisheries

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Lethrinus microdon Valenciennes, 1830

Smalltooth emperor
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Lethrinus microdon   AquaMaps   Data sources: GBIF OBIS
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Image of Lethrinus microdon (Smalltooth emperor)
Lethrinus microdon
Picture by Hazes, B.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > 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 Ecology

Marine; reef-associated; non-migratory; depth range 10 - 200 m (Ref. 2295). Tropical; 32°N - 23°S, 32°E - 160°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Indo-West Pacific: widespread, including the Red Sea, Arabian (Persian) Gulf, East Africa to Sri Lanka, to the Ryukyu Islands and Papua New Guinea. Also recorded from Micronesia (Ref. 3807) and French Polynesia (Ref. 4517) but these are probably misidentifications of Lethrinus olivaceus.

Length at first maturity / Size / Weight / Age

Maturity: Lm 29.1  range ? - ? cm
Max length : 80.0 cm TL male/unsexed; (Ref. 48635); common length : 40.0 cm TL male/unsexed; (Ref. 2295); max. published weight: 4.9 kg (Ref. 40637)

Short description Morphology | Morphometrics

Dorsal spines (total): 10; Dorsal soft rays (total): 9; Anal spines: 3; Anal soft rays: 8. The snout is moderately long, its dorsal profile slightly concave. Body color is bluish gray or brown often with scattered irregular dark blotches on sides; sometimes three dark streaks radiate forward from the eye. The fins are pale or orangish.

Biology     Glossary (e.g. epibenthic)

Found over sandy areas near coral reefs (Ref. 30573). Feeds on fish, crustaceans, cephalopods, and polychaetes. Swims in small schools sometimes together with L. olivaceous. Utilized as a food fish. Maximum depth reported taken from Ref. 9773.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

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

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Reports of ciguatera poisoning (Ref. 31637)





Human uses

Fisheries: commercial
FAO - Fisheries: landings; Publication: search | FishSource | Sea Around Us

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Estimates based on models

Preferred temperature (Ref. 123201): 24.7 - 29.1, mean 28.1 °C (based on 1954 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00766 - 0.01802), b=2.97 (2.85 - 3.09), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.8   ±0.51 se; based on food items.
Generation time: 5.5 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (K=0.20).
Prior r = 0.57, 95% CL = 0.37 - 0.85, Based on 1 stock assessment.
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (46 of 100).
Climate Vulnerability (Ref. 125649):  Very high vulnerability (89 of 100).
Price category (Ref. 80766):   Very high.
Nutrients (Ref. 124155):  Calcium = 30.8 [21.6, 41.5] mg/100g; Iron = 0.726 [0.499, 0.997] mg/100g; Protein = 20.3 [17.7, 22.4] %; Omega3 = 0.124 [0.092, 0.165] g/100g; Selenium = 51 [27, 76] μg/100g; VitaminA = 25.1 [5.6, 129.2] μg/100g; Zinc = 1.81 [1.40, 2.24] mg/100g (wet weight); based on nutrient studies.