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Monotaxis grandoculis (Forsskål, 1775)

Humpnose big-eye bream
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Monotaxis grandoculis   AquaMaps   Data sources: GBIF OBIS
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> Eupercaria/misc (Various families in series Eupercaria) > Lethrinidae (Emperors or scavengers) > Monotaxinae
Etymology: Monotaxis: Greek, monos = one + Greek, taxis = disposition (Ref. 45335).
More on author: Forsskål.

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

marin récifal; non migrateur; profondeur 0 - 100 m (Ref. 9710), usually 5 - 30 m (Ref. 9775). Tropical; 35°N - 30°S, 32°E - 122°W

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Indo-Pacific: Red Sea and East Africa to the Hawaiian Islands and southeastern Oceania, north to Japan, south to Australia.

Length at first maturity / Taille / Poids / Âge

Maturity: Lm 27.5, range 18 - ? cm
Max length : 60.0 cm TL mâle / non sexé; (Ref. 2295); common length : 40.0 cm TL mâle / non sexé; (Ref. 2295); poids max. publié: 5.9 kg (Ref. 40637)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 10; Rayons mous dorsaux (Total) : 10; Épines anales: 3; Rayons mous anaux: 9. This species is distinguished by the following characters: body oblong, greatest body depth of adults about 2.2 in SL; head profile strongly convex in front of eye, the snout sloping steeply; eye large 2.7 (juveniles) to 3.8 (adults) in HL; inner surface of the pectoral fin base is densely scaled; pectoral rays usually 14; caudal fin forked with pointed tips; lateral line scales 44-47; scale rows above lateral line (to base of middle dorsal spines) 5, below (to origin of anal fin) 13.5; side of jaw with row of 5-7 molariform teeth. Color of adult silvery grey with narrow dark scale margins, lips yellowish, a large black blotch covering pectoral fin axil, quick to assume pattern of 4 broad, blackish bars on body, the pale interspaces covering 3-4 scale rows; juveniles with black bar through eye, body with 3 dark brown to blackish bars with the 2 posterior bars extending onto the dorsal fin, and each lobe of caudal fin with an orange band (Ref. 2295, 90102).

Biologie     Glossaire (ex. epibenthic)

Found in sand and rubble areas near coral reefs. Solitary fish are often encountered, but large adults usually form aggregations of up to about 50 individuals (Ref. 9710). Solitary or in groups (Ref. 90102). Benthopelagic (Ref. 58302). Nocturnal feeders (Ref. 9710). Feed mainly on gastropods, ophiuroids, and echinoids. Pagurids and brachyuran crabs, polychaetes, tunicates, and holothurians are consumed in lesser quantities. Caught mainly with gillnets, traps, spears, and handlines (Ref. 2295). Marketed fresh (Ref. 9775). Ciguatoxic in Marshall Is. (Ref. 171). Minimum depth reported taken from Ref. 128797.

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

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)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

  Préoccupation mineure (LC) ; Date assessed: 09 March 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Reports of ciguatera poisoning (Ref. 4690)





Utilisations par l'homme

Pêcheries: commercial; pêche sportive: oui; Aquarium: Commercial
FAO - pêcheries: landings; Publication: search | FishSource | Sea Around Us

Plus d'informations

Trophic ecology
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Prédateurs
Ecology
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Length-weight rel.
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Estimates based on models

Preferred temperature (Ref. 123201): 24.6 - 29.1, mean 28 °C (based on 1440 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02188 (0.01670 - 0.02866), b=2.95 (2.87 - 3.03), in cm total length, based on LWR estimates for this species (Ref. 93245).
Niveau trophique (Ref. 69278):  3.4   ±0.0 se; based on diet studies.
Résilience (Ref. 120179):  Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (44 of 100).
Climate Vulnerability (Ref. 125649):  Very high vulnerability (76 of 100).
Catégorie de prix (Ref. 80766):   Very high.
Nutrients (Ref. 124155):  Calcium = 13.8 [7.7, 30.8] mg/100g; Iron = 0.142 [0.080, 0.282] mg/100g; Protein = 19.5 [17.5, 21.4] %; Omega3 = 0.0686 [, ] g/100g; Selenium = 72.3 [36.9, 142.9] μg/100g; VitaminA = 56.8 [17.8, 158.9] μg/100g; Zinc = 0.438 [0.335, 0.630] mg/100g (wet weight); based on nutrient studies.