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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: Gill.

Environment: milieu / climate zone / depth range / distribution range Écologie

marin démersal; profondeur 10 - 60 m (Ref. 91172). Subtropical; 34°N - 7°S, 118°W - 77°W (Ref. 57343)

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Eastern Pacific: Los Angeles Harbor in California, USA to off Paita, Peru; rare north of Baja California, Mexico.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 50.0 cm TL mâle / non sexé; (Ref. 55763); common length : 25.0 cm TL mâle / non sexé; (Ref. 55763)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 9; Rayons mous dorsaux (Total) : 11 - 13; Épines anales: 3; Rayons mous anaux: 12 - 14. Body and fins yellowish; no stripes or spots. Anterior parts of lower jaw with villiform teeth extending onto lateral surface, adjacent part of lip poorly developed in large specimens. Vomerine teeth present. Maxilla covered with small deciduous scales. Pectoral filaments 9. Lateral line unbranched, extending to upper end of caudal fin lobe. Swim bladder absent (Ref. 45049).

Inhabits coastal waters and estuaries, on sand and mud bottom (Ref. 9332). Also found along sandy beaches (Ref. 57343). Esteemed food fish in the tropical eastern Pacific (Ref. 57343).

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Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Motomura, H., S. Kimura and Y. Iwatsuki, 2002. Revision of the threadfin genus Polydactylus (Perciformes, Polynemidae) from the eastern Pacific Ocean. Ichthyol. Res. 49(4):358-366. (Ref. 45049)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

Préoccupation mineure (LC) ; Date assessed: 24 May 2007

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

Pêcheries: intérêt commercial mineur

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 24.6 - 28.6, mean 27.2 °C (based on 32 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00661 (0.00383 - 0.01141), b=3.07 (2.92 - 3.22), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 3.3 ±0.51 se; based on food items.

Résilience (Ref. 120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (40 of 100).

Catégorie de prix (Ref. 80766): Very high.

Polydactylus opercularis (Gill, 1863)