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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
.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 35.0 cm TL male/unsexed; (Ref.
2295
); common length : 25.0 cm TL male/unsexed; (Ref.
2295
)
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
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
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
)
Preferred temperature (Ref.
123201
): 24.2 - 28.8, mean 28.1 °C (based on 445 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01778 (0.00761 - 0.04154), b=2.97 (2.78 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (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.
Resilience (Ref.
120179
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.22).
Fishing Vulnerability (Ref.
59153
): Moderate vulnerability (38 of 100).
Price category (Ref.
80766
):
High
.
Nutrients (Ref.
124155
): Calcium = 39.5 [20.2, 69.1] mg/100g; Iron = 0.519 [0.283, 0.847] mg/100g; Protein = 19.2 [17.2, 21.2] %; Omega3 = 0.128 [0.075, 0.187] g/100g; Selenium = 34.9 [21.0, 60.2] μg/100g; VitaminA = 81.5 [24.8, 238.5] μg/100g; Zinc = 1.32 [0.94, 1.79] mg/100g (wet weight);
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