Actinoptérygiens (poissons à nageoires rayonnées) >
Perciformes (Perch-likes) >
Lethrinidae (Emperors or scavengers) > Monotaxinae
Etymology: Gymnocranius: Greek, gymnos = naked + Greek, kranion = skull (Ref. 45335). More on authors: Temminck & Schlegel.
Environment: milieu / climate zone / depth range / distribution range
Écologie
; marin récifal; non migrateur; profondeur 15 - 80 m (Ref. 2295). Tropical; 35°N - 9°S
Indo-West Pacific: southern Japan to the Indo-Malaysian region, probably eastward to India. Has often been confused w/ the young of Gymnocranius grandoculis, hence its distributional limits are somewhat obscure. Records of Gymnocranius griseus from the Western Indian Ocean probably pertain to Gymnocranius grandoculis.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 35.0 cm TL mâle / non sexé; (Ref. 2295); common length : 25.0 cm TL mâle / non sexé; (Ref. 2295)
Épines dorsales (Total): 10; Rayons mous dorsaux (Total): 9-10; Épines anales 3; Rayons mous anaux: 9 - 10.
In sheltered coastal bays and sand and mud slopes in depths over 20 m (Ref. 48635); also in coastal trawling grounds. Juveniles sometimes in shallow estuaries on algae reefs (Ref. 48635). Sometimes forms schools. Feeds on bottom-living invertebrates. Sexually mature upon reaching 15-17 cm SL. Sometimes caught with handlines and marketed dried (Ref. 9775) or fresh. In Hong Kong live fish markets (Ref. 27253).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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. 120744)
CITES (Ref. 118484)
Not Evaluated
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: commercial; pêche sportive: oui
Plus d'informations
Noms communsSynonymesMétabolismePrédateursÉcotoxicologieReproductionMaturitéFraiRassemblement de ponteFéconditéŒufsDéveloppement de l'œuf
Outils
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Sources Internet
Estimates based on models
Preferred temperature (Ref.
115969): 24.2 - 28.8, mean 28.1 (based on 445 cells).
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Niveau trophique (Ref.
69278): 3.2 ±0.44 se; Based on food items.
Generation time: 5.0 ( na - na) years. Estimated as median LN(3)/K based on 1
growth studies.
Résilience (Ref.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (K=0.22).
Vulnérabilité (Ref.
59153): Moderate vulnerability (38 of 100) .
