Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino; salmastro associati a barriera corallina; distribuzione batimetrica 3 - 100 m (Ref. 9710). Tropical
Western Pacific: central Honshu, Japan to Taiwan and the Philippines. Also occurs in Indonesia and northwestern Australia, a new record for the northeastern Indian Ocean (Ref. 5978).
Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.0 cm TL maschio/sesso non determinato; (Ref. 559); common length : 8.0 cm TL maschio/sesso non determinato; (Ref. 9137); peso massimo pubblicato: 25.00 g (Ref. 131261)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 8; Raggi dorsali molli (totale) : 9; Spine anali: 2; Raggi anali molli: 8. Upper jaw tips of breeding pair protrude. Attains 12 cm TL.
May enter semi-enclosed sea areas; forms schools over rocky bottoms (Ref. 11230). Nocturnal species (Ref. 7300). Breeding pairs are found from July to September in Japan. Mouth brooding is done by the male (Ref. 240).
Mouthbrooders (Ref. 240). Distinct pairing during courtship and spawning (Ref. 205). Displays obligate monogamy where a one-to-one pair is established irrespective of resource abundance (Ref. 52884).
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: Version 2024-1)
Threat to humans
Harmless
Human uses
Pesca: pesca di sussistenza
Strumenti
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 22.1 - 28.9, mean 27.6 °C (based on 824 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01230 (0.00729 - 0.02077), b=3.05 (2.91 - 3.19), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.0 se; based on diet studies.
Resilienza (Ref.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
Nutrients (Ref.
124155): Calcium = 113 [55, 189] mg/100g; Iron = 0.849 [0.489, 1.494] mg/100g; Protein = 18.8 [17.7, 20.0] %; Omega3 = 0.153 [0.085, 0.275] g/100g; Selenium = 36.8 [17.7, 72.9] μg/100g; VitaminA = 54.8 [14.4, 202.9] μg/100g; Zinc = 1.76 [1.16, 2.56] mg/100g (wet weight);