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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 Ekologi

marina; brackvatten bottenlevande; djupintervall 10 - 56 m (Ref. 45356), usually 10 - 56 m (Ref. 45356). Tropical; 4°S - 34°S, 113°E - 154°E (Ref. 57343)

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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.

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 21.0 cm FL hane/ej könsbestämd; (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 Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

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

Main reference Upload your references | referenser | Koordinator | Medarbetare

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)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 04 February 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fiskeri: saknar intresse

FAO - Publication: search | FishSource |

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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=0.00813 (0.00477 - 0.01384), b=3.11 (2.96 - 3.26), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 3.1 ±0.30 se; based on food items.

Resiliens (Ref. 120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (K=0.16).

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

Polydactylus multiradiatus (Günther, 1860)