Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin; eau douce; saumâtre démersal; amphidrome (Ref. 46888). Tropical
Indo-Pacific: Delagoa Bay, Mozambique and Madagascar to China and Philippines (Ref. 6802, 82489). Eastern Atlantic: collected from Port Harcourt (Niger delta in Nigeria) (Ref. 7391, 57413), apparently introduced (Ref. 7050). Also found (introduced) in Guinea and Cameroon (Ref. 82489). Other introduced populations are known from Panama, Venezuela and Brazil (Ref. 82489).
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 10.7 cm TL mâle / non sexé; (Ref. 57413)
Épines dorsales (Total) : 7; Rayons mous dorsaux (Total) : 7 - 8; Épines anales: 1; Rayons mous anaux: 7 - 9. Diagnosis: 11-15 scales in predorsal series; 25-29 ctenoid scales in longitudinal series (including 1-2 scales on caudal fin base); 9-12 scales in rearward transverse series; 1st dorsal fin: VI; second dorsal fin: I,8 (rarely 7); anal fin: I,7-9 (usually 8); pectoral fins: 19-22; pelvics relatively long, their tips almost, or just reaching level of anus; caudal fin rounded, with 11-16 segmented rays (Ref. 57413, 82489). 1st gill arch with 4-5 gill rakers on epibranchial, 6-8 on ceratobranchial (Ref. 82489), about 12 in total, that are narrow and spine-like (Ref. 57413). Dark brown, scales edged in dark brown (Ref. 5493). Body with 4-5 oblique bands (Ref. 5493, 82489), crossing dorsum at nape, 1st dorsal fin, 2nd dorsal fin and caudal peduncle (one or two)(Ref. 82489). Anterior part of 1st dorsal fin dark, 2nd dorsal and caudal fin with alternating dark brown and white spots, anal and pelvic fins dusky to black, pectorals clear; females with more distinct bands and lighter fins (Ref. 5493).
Coloration: Preserved specimens: 2-3 longitudinal series of small dark spots above midline of flanks; broad, dark, crossbar running from each dorsal fin base towards belly, bifurcating on flanks into separate bands; 2 narrower crossbars on caudal peduncle; a lunate band on base of caudal fin; dark pre- and suborbital bands on head, confluent below eye; dark spot behind eye and light horizontal band running to posterior of operculum; snout marbled; 3 dark crossbars on nape preceding a light area in front of 1st dorsal-fin base; ventral area of head speckled; both dorsal fins with a dark proximal band; 1st dorsal fin more or less entirely dark to distal margin; 2nd dorsal fin with dark distal margin; anal and pelvic fins black, except distal area of pelvic fins lighter; pectoral fins with a dark spot at base (edged red in life) and an upper, smaller, dark spot sometimes evident (Ref. 57413).
Body shape (shape guide): elongated.
Inhabits rivers, estuaries (Ref. 4967) and mangrove creeks (Ref. 10812). Feeds on crustaceans and small fishes. Marketed fresh (Ref. 12693). Maximum size recorded in West Africa was 8.3 cm TL (Ref. 57413).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Distinct pairing (Ref. 205).
Miller, P.J. and P. Wongrat, 1990. Eleotridae. p. 952-957. In J. C. Quéro, J. C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref. 10812)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2)
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: bycatch
Outils
Articles particuliers
Télécharger en XML
Sources Internet
Estimations basées sur des modèles
Température préférée (Réf.
123201): 24.8 - 29.1, mean 28.3 °C (based on 1224 cells).
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00571 - 0.01597), b=3.19 (3.04 - 3.34), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Niveau trophique (Réf.
69278): 4.0 ±0.66 se; based on food items.
Résilience (Réf.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Vulnérabilité de la pêche (Ref.
59153): Low vulnerability (10 of 100).
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