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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: Günther.

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

marin; saumâtre démersal; profondeur 10 - 56 m (Ref. 45356), usually 10 - 56 m (Ref. 45356). Tropical; 4°S - 34°S, 113°E - 154°E (Ref. 57343)

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Eastern Indian Ocean and Western Pacific: known only from southern Indonesia (Timor and Arafura seas) and northern Australia (Exmouth Gulf, Western Australia to Clarence River, New South Wales) (Ref. 9685). The type locality (China) may most likely be erroneous.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 21.0 cm FL mâle / non sexé; (Ref. 1844); 24.5 cm FL (female)

Inhabits coastal waters over sand or mud bottoms. Feeds on prawns. Often taken in association with Penaeus prawns in the Gulf of Carpentaria.

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Sex change occurs between 12-14 cm SL (Ref. 45356).

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

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: Version 2024-1)

Préoccupation mineure (LC) ; Date assessed: 04 February 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

Pêcheries: sans intérêt

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Estimates based on models

Preferred temperature (Ref. 123201): 25.4 - 28.7, mean 27.7 °C (based on 632 cells).

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

Bayesian length-weight: a=0.00794 (0.00468 - 0.01347), b=3.12 (2.97 - 3.27), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 3.1 ±0.30 se; based on food items.

Résilience (Ref. 120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (K=0.16).

Fishing Vulnerability (Ref. 59153): Low vulnerability (17 of 100).

Polydactylus multiradiatus (Günther, 1860)