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Eupercaria/misc (Various families in series Eupercaria) >
Lethrinidae (Emperors or scavengers) > Monotaxinae
Etymology: Gymnocranius: Greek, gymnos = naked + Greek, kranion = skull (Ref. 45335).
More on author: Bleeker.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser riff-verbunden; standorttreu; tiefenbereich 15 - 50 m (Ref. 2295). Tropical; 37°N - 10°S
Indo-West Pacific: known only from southern Japan, the South China Sea, the Marshall Islands, and off Phuket, Thailand in the Andaman Sea.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 45.0 cm TL Männchen/unbestimmt; (Ref. 2295); common length : 35.0 cm TL Männchen/unbestimmt; (Ref. 2295)
Rückenflossenstacheln (insgesamt) : 10; Rückenflossenweichstrahlen (insgesamt) : 9 - 10; Afterflossenstacheln: 3; Afterflossenweichstrahlen: 9 - 10.
Body shape (shape guide): fusiform / normal; Cross section: oval.
Found over sandy and rubble bottoms near rock and coral reefs. Solitary on sand slopes in clear coastal lagoon habitats (Ref. 48635). May be found in small groups (Ref. 90102). Feeds on small bottom-living invertebrates. Marketed fresh (Ref. 9775).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
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 Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: weniger kommerziell
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Schätzungen auf der Grundlage von Modellen
Bevorzugte Temperatur (Ref.
123201): 24.4 - 29.1, mean 28.3 °C (based on 596 cells).
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01698 (0.00720 - 0.04003), b=2.98 (2.79 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophische Ebene (Ref.
69278): 3.4 ±0.41 se; based on food items.
Widerstandsfähigkeit (Ref.
120179): mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Preliminary K or Fecundity.).
Anfälligkeit der Fischerei (Ref.
59153): Low to moderate vulnerability (35 of 100).
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Nährstoffe (Ref.
124155): Calcium = 37.1 [18.9, 64.9] mg/100g; Iron = 0.512 [0.282, 0.828] mg/100g; Protein = 19.5 [17.5, 21.5] %; Omega3 = 0.123 [0.073, 0.174] g/100g; Selenium = 33.8 [21.2, 57.9] μg/100g; VitaminA = 65.8 [20.4, 185.7] μg/100g; Zinc = 1.16 [0.84, 1.56] mg/100g (wet weight);