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Carangiformes (Jacks) >
Carangidae (Jacks and pompanos) > Trachinotinae
Etymology: Trachinotus: Greek, trachys, -eia, -ys = rough + Greek,noton = back (Ref. 45335).
More on author: Cuvier.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin; eau douce; saumâtre pelagic-neritic. Tropical; 28°N - 7°S
Eastern Atlantic: Senegal to Gabon, including Cape Verde (Ref. 4225, 57392, 81654).
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm 29.0  range ? - 42 cm
Max length : 68.0 cm TL mâle / non sexé; (Ref. 57392); common length : 35.0 cm TL mâle / non sexé; (Ref. 26999); poids max. publié: 8.3 kg (Ref. 126428)
Épines dorsales (Total) : 7; Rayons mous dorsaux (Total) : 19 - 21; Épines anales: 3; Rayons mous anaux: 16 - 18. Diagnosis: body short and deep (depth comprised 1.8-2.5 times in fork length)(Ref. 57392, 81654). Snout rounded; mouth small; maxillary reaching to below hind margin of pupil (Ref. 57392). No teeth on tongue (Ref. 81654). 2 dorsal fins, 1st with 6 spines, 2nd with 1 spine and 19-21 soft rays; anal fin with 2 short, detached spines followed by 1 spine and 16-18 soft rays (Ref. 57392, 81654). Soft dorsal (Ref. 57392, 81654) and anal fin lobes shorter than head (Ref. 57392). Pectoral fins short; scales small, cycloid and partially embedded in skin; lateral line very slightly arched over pectoral fins, without scutes (Ref. 57392). No distinct spots/dark blotches (Ref. 57392, 81654) or other colour marks on body (Ref. 57392).
Coloration: back bluish-grey or greenish, sides and ventrum silvery, without distinctive markings; fins dark; lobes of dorsal, anal and caudal fins darker to black (Ref. 57392, 81654).
Body shape (shape guide): short and / or deep.
Adults inhabit coastal waters (Ref. 2683). Enters brackish waters for reproduction and ascends rather far up the lower courses of rivers (Ref. 4225, 57392). Unique in spending the whole live cycle in myxohaline environment, without a marine phase; seasonality of recruitment seems to indicate that favourable conditions for reproduction and larval survival are limited to the dry season although sexual maturity occurs all year round (Ref. 81654). Feeds on fry and young shrimps up to 125 mm fork length, diet of larger specimens mainly malacophagous (bivalves), the shells of which are crushed with well-developed pharyngeal jaws (Ref. 81654). Also feeds on fish, shrimps and crabs (Ref. 28587). Maximum fork length recorded was 610 mm (Ref. 57392).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Bauchot, M.-L., 2003. Carangidae. p. 464-483 In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douce et saumâtres de l'Afrique de l'Ouest, Tome 2. Coll. Faune et Flore tropicales 40. Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Museum National d'Histoire Naturalle, Paris, France and Institut de Recherche pour le Développement, Paris, France. 815 p. (Ref. 57392)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: intérêt commercial mineur; pêche sportive: oui
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01778 (0.00916 - 0.03452), b=2.90 (2.74 - 3.06), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.6 ±0.45 se; based on food items. |
Résilience (Réf. 120179) |
Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.). |
Vulnérabilité de la pêche (Ref. 59153) |
Moderate vulnerability (37 of 100). 🛈 |
Catégorie de prix (Ref. 80766) |
Medium.
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Nutriments (Ref. 124155) |
Calcium = 117 [52, 256] mg/100g; Iron = 1.39 [0.75, 3.00] mg/100g; Protein = 19 [17, 21] %; Omega3 = 0.2 [0.1, 0.4] g/100g; Selenium = 44.9 [20.3, 99.8] μg/100g; VitaminA = 9.36 [2.28, 33.15] μg/100g; Zinc = 1.06 [0.69, 1.66] mg/100g (wet weight); |