Common names from other countries
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Carangaria/misc (Various families in series Carangaria) >
Polynemidae (Threadfins)
Etymology: Polydactylus: Greek, poly = a lot of + greek, daktylos = finger (Ref. 45335).
More on author: Linnaeus.
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin; saumâtre démersal; profondeur 0 - 55 m (Ref. 26912). Tropical; 41°N - 14°S, 93°W - 35°W (Ref. 57343)
Western Atlantic: New Jersey, USA to Salvador, Brazil. Reported to range to Uruguay (Ref. 9626). Not occurring in the northern and western Gulf of Mexico.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 33.0 cm TL mâle / non sexé; (Ref. 57343); common length : 20.0 cm TL mâle / non sexé; (Ref. 3796)
Épines dorsales (Total) : 8 - 9; Rayons mous dorsaux (Total) : 11; Épines anales: 3; Rayons mous anaux: 12 - 14.
Found on sandy and muddy bottoms of coastal waters, estuaries and mangroves, and occasionally in the surf (Ref. 57343). Young aggregate near river mouths (Ref. 57343). Common around islands (Ref. 9710). Nocturnal feeder, taking crustaceans, chaetognaths, plant material, and polychaetes (Ref. 57343). May have a prolonged spawning season (Ref. 57343).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
Motomura, H., 2004. Threadfins of the world (Family Polynemidae). An annotated and illustrated catalogue of polynemid species known to date. FAO Spec. Cat. Fish. Purp. Rome: FAO. 3:117 p. (Ref. 57343)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: intérêt commercial mineur
Outils
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Sources Internet
Estimates based on models
Preferred temperature (Ref.
115969): 22.9 - 28, mean 26.4 (based on 440 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00541 - 0.00807), b=3.11 (3.05 - 3.17), in cm Total Length, based on LWR estimates for this species (Ref.
93245).
Niveau trophique (Ref.
69278): 3.7 ±0.4 se; based on diet studies.
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (23 of 100).