Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; pelagic-neritic; amphidromous (Ref. 51243); depth range 5 - 100 m (Ref. 52753). Tropical; 40°N - 12°S, 47°E - 143°E
Indo-West Pacific.
Length at first maturity / Size / Weight / Age
Maturity: Lm 21.0 range ? - ? cm
Max length : 31.6 cm TL male/unsexed; (Ref. 121654)
Dorsal spines (total): 9; Dorsal soft rays (total): 21 - 22; Anal spines: 3; Anal soft rays: 17 - 18. This species is easily recognized by its long pelvic fin which fit into a groove along the midline of the belly when depressed. Scutes are present along its straight lateral line. Adult males have prolonged middle rays in the soft dorsal and anal fins. This species attains 25 cm in SL.
Adults are common in shallow coastal waters where they often swim near the surface. They feed mainly on shrimps, copepods, decapod crustaceans and small fish.
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Fisheries: minor commercial
Tools
Special reports
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 23.5 - 29.2, mean 28.2 °C (based on 1522 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02089 (0.01183 - 0.03689), b=2.87 (2.72 - 3.02), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.6 ±0.52 se; based on food items.
Generation time: 2.0 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (18 of 100).
Nutrients (Ref.
124155): Calcium = 197 [92, 426] mg/100g; Iron = 1.79 [0.95, 3.80] mg/100g; Protein = 18.6 [17.3, 19.9] %; Omega3 = 0.247 [0.129, 0.485] g/100g; Selenium = 51 [23, 115] μg/100g; VitaminA = 14.4 [3.5, 52.1] μg/100g; Zinc = 1.14 [0.73, 1.81] mg/100g (wet weight);
